mbed library sources
Fork of mbed-src by
targets/cmsis/TARGET_STM/TARGET_STM32F7/stm32f7xx_hal_can.c@610:813dcc80987e, 2015-08-14 (annotated)
- Committer:
- mbed_official
- Date:
- Fri Aug 14 13:15:17 2015 +0100
- Revision:
- 610:813dcc80987e
- Parent:
- 573:ad23fe03a082
Synchronized with git revision 6d84db41c6833e0b9b024741eb0616a5f62d5599
Full URL: https://github.com/mbedmicro/mbed/commit/6d84db41c6833e0b9b024741eb0616a5f62d5599/
DISCO_F746NG - Improvements
Who changed what in which revision?
User | Revision | Line number | New contents of line |
---|---|---|---|
mbed_official | 573:ad23fe03a082 | 1 | /** |
mbed_official | 573:ad23fe03a082 | 2 | ****************************************************************************** |
mbed_official | 573:ad23fe03a082 | 3 | * @file stm32f7xx_hal_can.c |
mbed_official | 573:ad23fe03a082 | 4 | * @author MCD Application Team |
mbed_official | 610:813dcc80987e | 5 | * @version V1.0.1 |
mbed_official | 610:813dcc80987e | 6 | * @date 25-June-2015 |
mbed_official | 573:ad23fe03a082 | 7 | * @brief CAN HAL module driver. |
mbed_official | 573:ad23fe03a082 | 8 | * This file provides firmware functions to manage the following |
mbed_official | 573:ad23fe03a082 | 9 | * functionalities of the Controller Area Network (CAN) peripheral: |
mbed_official | 573:ad23fe03a082 | 10 | * + Initialization and de-initialization functions |
mbed_official | 573:ad23fe03a082 | 11 | * + IO operation functions |
mbed_official | 573:ad23fe03a082 | 12 | * + Peripheral Control functions |
mbed_official | 573:ad23fe03a082 | 13 | * + Peripheral State and Error functions |
mbed_official | 573:ad23fe03a082 | 14 | * |
mbed_official | 573:ad23fe03a082 | 15 | @verbatim |
mbed_official | 573:ad23fe03a082 | 16 | ============================================================================== |
mbed_official | 573:ad23fe03a082 | 17 | ##### How to use this driver ##### |
mbed_official | 573:ad23fe03a082 | 18 | ============================================================================== |
mbed_official | 573:ad23fe03a082 | 19 | [..] |
mbed_official | 573:ad23fe03a082 | 20 | (#) Enable the CAN controller interface clock using |
mbed_official | 573:ad23fe03a082 | 21 | __HAL_RCC_CAN1_CLK_ENABLE() for CAN1 and __HAL_RCC_CAN2_CLK_ENABLE() for CAN2 |
mbed_official | 573:ad23fe03a082 | 22 | -@- In case you are using CAN2 only, you have to enable the CAN1 clock. |
mbed_official | 573:ad23fe03a082 | 23 | |
mbed_official | 573:ad23fe03a082 | 24 | (#) CAN pins configuration |
mbed_official | 573:ad23fe03a082 | 25 | (++) Enable the clock for the CAN GPIOs using the following function: |
mbed_official | 573:ad23fe03a082 | 26 | __HAL_RCC_GPIOx_CLK_ENABLE() |
mbed_official | 573:ad23fe03a082 | 27 | (++) Connect and configure the involved CAN pins to AF9 using the |
mbed_official | 573:ad23fe03a082 | 28 | following function HAL_GPIO_Init() |
mbed_official | 573:ad23fe03a082 | 29 | |
mbed_official | 573:ad23fe03a082 | 30 | (#) Initialize and configure the CAN using HAL_CAN_Init() function. |
mbed_official | 573:ad23fe03a082 | 31 | |
mbed_official | 573:ad23fe03a082 | 32 | (#) Transmit the desired CAN frame using HAL_CAN_Transmit() function. |
mbed_official | 573:ad23fe03a082 | 33 | |
mbed_official | 573:ad23fe03a082 | 34 | (#) Receive a CAN frame using HAL_CAN_Receive() function. |
mbed_official | 573:ad23fe03a082 | 35 | |
mbed_official | 573:ad23fe03a082 | 36 | *** Polling mode IO operation *** |
mbed_official | 573:ad23fe03a082 | 37 | ================================= |
mbed_official | 573:ad23fe03a082 | 38 | [..] |
mbed_official | 573:ad23fe03a082 | 39 | (+) Start the CAN peripheral transmission and wait the end of this operation |
mbed_official | 573:ad23fe03a082 | 40 | using HAL_CAN_Transmit(), at this stage user can specify the value of timeout |
mbed_official | 573:ad23fe03a082 | 41 | according to his end application |
mbed_official | 573:ad23fe03a082 | 42 | (+) Start the CAN peripheral reception and wait the end of this operation |
mbed_official | 573:ad23fe03a082 | 43 | using HAL_CAN_Receive(), at this stage user can specify the value of timeout |
mbed_official | 573:ad23fe03a082 | 44 | according to his end application |
mbed_official | 573:ad23fe03a082 | 45 | |
mbed_official | 573:ad23fe03a082 | 46 | *** Interrupt mode IO operation *** |
mbed_official | 573:ad23fe03a082 | 47 | =================================== |
mbed_official | 573:ad23fe03a082 | 48 | [..] |
mbed_official | 573:ad23fe03a082 | 49 | (+) Start the CAN peripheral transmission using HAL_CAN_Transmit_IT() |
mbed_official | 573:ad23fe03a082 | 50 | (+) Start the CAN peripheral reception using HAL_CAN_Receive_IT() |
mbed_official | 573:ad23fe03a082 | 51 | (+) Use HAL_CAN_IRQHandler() called under the used CAN Interrupt subroutine |
mbed_official | 573:ad23fe03a082 | 52 | (+) At CAN end of transmission HAL_CAN_TxCpltCallback() function is executed and user can |
mbed_official | 573:ad23fe03a082 | 53 | add his own code by customization of function pointer HAL_CAN_TxCpltCallback |
mbed_official | 573:ad23fe03a082 | 54 | (+) In case of CAN Error, HAL_CAN_ErrorCallback() function is executed and user can |
mbed_official | 573:ad23fe03a082 | 55 | add his own code by customization of function pointer HAL_CAN_ErrorCallback |
mbed_official | 573:ad23fe03a082 | 56 | |
mbed_official | 573:ad23fe03a082 | 57 | *** CAN HAL driver macros list *** |
mbed_official | 573:ad23fe03a082 | 58 | ============================================= |
mbed_official | 573:ad23fe03a082 | 59 | [..] |
mbed_official | 573:ad23fe03a082 | 60 | Below the list of most used macros in CAN HAL driver. |
mbed_official | 573:ad23fe03a082 | 61 | |
mbed_official | 573:ad23fe03a082 | 62 | (+) __HAL_CAN_ENABLE_IT: Enable the specified CAN interrupts |
mbed_official | 573:ad23fe03a082 | 63 | (+) __HAL_CAN_DISABLE_IT: Disable the specified CAN interrupts |
mbed_official | 573:ad23fe03a082 | 64 | (+) __HAL_CAN_GET_IT_SOURCE: Check if the specified CAN interrupt source is enabled or disabled |
mbed_official | 573:ad23fe03a082 | 65 | (+) __HAL_CAN_CLEAR_FLAG: Clear the CAN's pending flags |
mbed_official | 573:ad23fe03a082 | 66 | (+) __HAL_CAN_GET_FLAG: Get the selected CAN's flag status |
mbed_official | 573:ad23fe03a082 | 67 | |
mbed_official | 573:ad23fe03a082 | 68 | [..] |
mbed_official | 573:ad23fe03a082 | 69 | (@) You can refer to the CAN HAL driver header file for more useful macros |
mbed_official | 573:ad23fe03a082 | 70 | |
mbed_official | 573:ad23fe03a082 | 71 | @endverbatim |
mbed_official | 573:ad23fe03a082 | 72 | |
mbed_official | 573:ad23fe03a082 | 73 | ****************************************************************************** |
mbed_official | 573:ad23fe03a082 | 74 | * @attention |
mbed_official | 573:ad23fe03a082 | 75 | * |
mbed_official | 573:ad23fe03a082 | 76 | * <h2><center>© COPYRIGHT(c) 2015 STMicroelectronics</center></h2> |
mbed_official | 573:ad23fe03a082 | 77 | * |
mbed_official | 573:ad23fe03a082 | 78 | * Redistribution and use in source and binary forms, with or without modification, |
mbed_official | 573:ad23fe03a082 | 79 | * are permitted provided that the following conditions are met: |
mbed_official | 573:ad23fe03a082 | 80 | * 1. Redistributions of source code must retain the above copyright notice, |
mbed_official | 573:ad23fe03a082 | 81 | * this list of conditions and the following disclaimer. |
mbed_official | 573:ad23fe03a082 | 82 | * 2. Redistributions in binary form must reproduce the above copyright notice, |
mbed_official | 573:ad23fe03a082 | 83 | * this list of conditions and the following disclaimer in the documentation |
mbed_official | 573:ad23fe03a082 | 84 | * and/or other materials provided with the distribution. |
mbed_official | 573:ad23fe03a082 | 85 | * 3. Neither the name of STMicroelectronics nor the names of its contributors |
mbed_official | 573:ad23fe03a082 | 86 | * may be used to endorse or promote products derived from this software |
mbed_official | 573:ad23fe03a082 | 87 | * without specific prior written permission. |
mbed_official | 573:ad23fe03a082 | 88 | * |
mbed_official | 573:ad23fe03a082 | 89 | * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" |
mbed_official | 573:ad23fe03a082 | 90 | * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE |
mbed_official | 573:ad23fe03a082 | 91 | * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE |
mbed_official | 573:ad23fe03a082 | 92 | * DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE |
mbed_official | 573:ad23fe03a082 | 93 | * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL |
mbed_official | 573:ad23fe03a082 | 94 | * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR |
mbed_official | 573:ad23fe03a082 | 95 | * SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER |
mbed_official | 573:ad23fe03a082 | 96 | * CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, |
mbed_official | 573:ad23fe03a082 | 97 | * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE |
mbed_official | 573:ad23fe03a082 | 98 | * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. |
mbed_official | 573:ad23fe03a082 | 99 | * |
mbed_official | 573:ad23fe03a082 | 100 | ****************************************************************************** |
mbed_official | 573:ad23fe03a082 | 101 | */ |
mbed_official | 573:ad23fe03a082 | 102 | |
mbed_official | 573:ad23fe03a082 | 103 | /* Includes ------------------------------------------------------------------*/ |
mbed_official | 573:ad23fe03a082 | 104 | #include "stm32f7xx_hal.h" |
mbed_official | 573:ad23fe03a082 | 105 | |
mbed_official | 573:ad23fe03a082 | 106 | /** @addtogroup STM32F7xx_HAL_Driver |
mbed_official | 573:ad23fe03a082 | 107 | * @{ |
mbed_official | 573:ad23fe03a082 | 108 | */ |
mbed_official | 573:ad23fe03a082 | 109 | |
mbed_official | 573:ad23fe03a082 | 110 | /** @defgroup CAN CAN |
mbed_official | 573:ad23fe03a082 | 111 | * @brief CAN driver modules |
mbed_official | 573:ad23fe03a082 | 112 | * @{ |
mbed_official | 573:ad23fe03a082 | 113 | */ |
mbed_official | 573:ad23fe03a082 | 114 | |
mbed_official | 573:ad23fe03a082 | 115 | #ifdef HAL_CAN_MODULE_ENABLED |
mbed_official | 573:ad23fe03a082 | 116 | |
mbed_official | 573:ad23fe03a082 | 117 | |
mbed_official | 573:ad23fe03a082 | 118 | /* Private typedef -----------------------------------------------------------*/ |
mbed_official | 573:ad23fe03a082 | 119 | /* Private define ------------------------------------------------------------*/ |
mbed_official | 573:ad23fe03a082 | 120 | /** @addtogroup CAN_Private_Constants |
mbed_official | 573:ad23fe03a082 | 121 | * @{ |
mbed_official | 573:ad23fe03a082 | 122 | */ |
mbed_official | 573:ad23fe03a082 | 123 | #define CAN_TIMEOUT_VALUE 10 |
mbed_official | 573:ad23fe03a082 | 124 | /** |
mbed_official | 573:ad23fe03a082 | 125 | * @} |
mbed_official | 573:ad23fe03a082 | 126 | */ |
mbed_official | 573:ad23fe03a082 | 127 | /* Private macro -------------------------------------------------------------*/ |
mbed_official | 573:ad23fe03a082 | 128 | /* Private variables ---------------------------------------------------------*/ |
mbed_official | 573:ad23fe03a082 | 129 | /* Private function prototypes -----------------------------------------------*/ |
mbed_official | 573:ad23fe03a082 | 130 | /** @addtogroup CAN_Private_Functions |
mbed_official | 573:ad23fe03a082 | 131 | * @{ |
mbed_official | 573:ad23fe03a082 | 132 | */ |
mbed_official | 573:ad23fe03a082 | 133 | static HAL_StatusTypeDef CAN_Receive_IT(CAN_HandleTypeDef* hcan, uint8_t FIFONumber); |
mbed_official | 573:ad23fe03a082 | 134 | static HAL_StatusTypeDef CAN_Transmit_IT(CAN_HandleTypeDef* hcan); |
mbed_official | 573:ad23fe03a082 | 135 | /** |
mbed_official | 573:ad23fe03a082 | 136 | * @} |
mbed_official | 573:ad23fe03a082 | 137 | */ |
mbed_official | 573:ad23fe03a082 | 138 | |
mbed_official | 573:ad23fe03a082 | 139 | /* Exported functions --------------------------------------------------------*/ |
mbed_official | 573:ad23fe03a082 | 140 | /** @defgroup CAN_Exported_Functions CAN Exported Functions |
mbed_official | 573:ad23fe03a082 | 141 | * @{ |
mbed_official | 573:ad23fe03a082 | 142 | */ |
mbed_official | 573:ad23fe03a082 | 143 | |
mbed_official | 573:ad23fe03a082 | 144 | /** @defgroup CAN_Exported_Functions_Group1 Initialization and de-initialization functions |
mbed_official | 573:ad23fe03a082 | 145 | * @brief Initialization and Configuration functions |
mbed_official | 573:ad23fe03a082 | 146 | * |
mbed_official | 573:ad23fe03a082 | 147 | @verbatim |
mbed_official | 573:ad23fe03a082 | 148 | ============================================================================== |
mbed_official | 573:ad23fe03a082 | 149 | ##### Initialization and de-initialization functions ##### |
mbed_official | 573:ad23fe03a082 | 150 | ============================================================================== |
mbed_official | 573:ad23fe03a082 | 151 | [..] This section provides functions allowing to: |
mbed_official | 573:ad23fe03a082 | 152 | (+) Initialize and configure the CAN. |
mbed_official | 573:ad23fe03a082 | 153 | (+) De-initialize the CAN. |
mbed_official | 573:ad23fe03a082 | 154 | |
mbed_official | 573:ad23fe03a082 | 155 | @endverbatim |
mbed_official | 573:ad23fe03a082 | 156 | * @{ |
mbed_official | 573:ad23fe03a082 | 157 | */ |
mbed_official | 573:ad23fe03a082 | 158 | |
mbed_official | 573:ad23fe03a082 | 159 | /** |
mbed_official | 573:ad23fe03a082 | 160 | * @brief Initializes the CAN peripheral according to the specified |
mbed_official | 573:ad23fe03a082 | 161 | * parameters in the CAN_InitStruct. |
mbed_official | 573:ad23fe03a082 | 162 | * @param hcan: pointer to a CAN_HandleTypeDef structure that contains |
mbed_official | 573:ad23fe03a082 | 163 | * the configuration information for the specified CAN. |
mbed_official | 573:ad23fe03a082 | 164 | * @retval HAL status |
mbed_official | 573:ad23fe03a082 | 165 | */ |
mbed_official | 573:ad23fe03a082 | 166 | HAL_StatusTypeDef HAL_CAN_Init(CAN_HandleTypeDef* hcan) |
mbed_official | 573:ad23fe03a082 | 167 | { |
mbed_official | 573:ad23fe03a082 | 168 | uint32_t InitStatus = 3; |
mbed_official | 573:ad23fe03a082 | 169 | uint32_t tickstart = 0; |
mbed_official | 573:ad23fe03a082 | 170 | |
mbed_official | 573:ad23fe03a082 | 171 | /* Check CAN handle */ |
mbed_official | 573:ad23fe03a082 | 172 | if(hcan == NULL) |
mbed_official | 573:ad23fe03a082 | 173 | { |
mbed_official | 573:ad23fe03a082 | 174 | return HAL_ERROR; |
mbed_official | 573:ad23fe03a082 | 175 | } |
mbed_official | 573:ad23fe03a082 | 176 | |
mbed_official | 573:ad23fe03a082 | 177 | /* Check the parameters */ |
mbed_official | 573:ad23fe03a082 | 178 | assert_param(IS_CAN_ALL_INSTANCE(hcan->Instance)); |
mbed_official | 573:ad23fe03a082 | 179 | assert_param(IS_FUNCTIONAL_STATE(hcan->Init.TTCM)); |
mbed_official | 573:ad23fe03a082 | 180 | assert_param(IS_FUNCTIONAL_STATE(hcan->Init.ABOM)); |
mbed_official | 573:ad23fe03a082 | 181 | assert_param(IS_FUNCTIONAL_STATE(hcan->Init.AWUM)); |
mbed_official | 573:ad23fe03a082 | 182 | assert_param(IS_FUNCTIONAL_STATE(hcan->Init.NART)); |
mbed_official | 573:ad23fe03a082 | 183 | assert_param(IS_FUNCTIONAL_STATE(hcan->Init.RFLM)); |
mbed_official | 573:ad23fe03a082 | 184 | assert_param(IS_FUNCTIONAL_STATE(hcan->Init.TXFP)); |
mbed_official | 573:ad23fe03a082 | 185 | assert_param(IS_CAN_MODE(hcan->Init.Mode)); |
mbed_official | 573:ad23fe03a082 | 186 | assert_param(IS_CAN_SJW(hcan->Init.SJW)); |
mbed_official | 573:ad23fe03a082 | 187 | assert_param(IS_CAN_BS1(hcan->Init.BS1)); |
mbed_official | 573:ad23fe03a082 | 188 | assert_param(IS_CAN_BS2(hcan->Init.BS2)); |
mbed_official | 573:ad23fe03a082 | 189 | assert_param(IS_CAN_PRESCALER(hcan->Init.Prescaler)); |
mbed_official | 573:ad23fe03a082 | 190 | |
mbed_official | 573:ad23fe03a082 | 191 | |
mbed_official | 573:ad23fe03a082 | 192 | if(hcan->State == HAL_CAN_STATE_RESET) |
mbed_official | 573:ad23fe03a082 | 193 | { |
mbed_official | 573:ad23fe03a082 | 194 | /* Allocate lock resource and initialize it */ |
mbed_official | 573:ad23fe03a082 | 195 | hcan->Lock = HAL_UNLOCKED; |
mbed_official | 573:ad23fe03a082 | 196 | /* Init the low level hardware */ |
mbed_official | 573:ad23fe03a082 | 197 | HAL_CAN_MspInit(hcan); |
mbed_official | 573:ad23fe03a082 | 198 | } |
mbed_official | 573:ad23fe03a082 | 199 | |
mbed_official | 573:ad23fe03a082 | 200 | /* Initialize the CAN state*/ |
mbed_official | 573:ad23fe03a082 | 201 | hcan->State = HAL_CAN_STATE_BUSY; |
mbed_official | 573:ad23fe03a082 | 202 | |
mbed_official | 573:ad23fe03a082 | 203 | /* Exit from sleep mode */ |
mbed_official | 573:ad23fe03a082 | 204 | hcan->Instance->MCR &= (~(uint32_t)CAN_MCR_SLEEP); |
mbed_official | 573:ad23fe03a082 | 205 | |
mbed_official | 573:ad23fe03a082 | 206 | /* Request initialisation */ |
mbed_official | 573:ad23fe03a082 | 207 | hcan->Instance->MCR |= CAN_MCR_INRQ ; |
mbed_official | 573:ad23fe03a082 | 208 | |
mbed_official | 573:ad23fe03a082 | 209 | /* Get tick */ |
mbed_official | 573:ad23fe03a082 | 210 | tickstart = HAL_GetTick(); |
mbed_official | 573:ad23fe03a082 | 211 | |
mbed_official | 573:ad23fe03a082 | 212 | /* Wait the acknowledge */ |
mbed_official | 573:ad23fe03a082 | 213 | while((hcan->Instance->MSR & CAN_MSR_INAK) != CAN_MSR_INAK) |
mbed_official | 573:ad23fe03a082 | 214 | { |
mbed_official | 573:ad23fe03a082 | 215 | if((HAL_GetTick() - tickstart ) > CAN_TIMEOUT_VALUE) |
mbed_official | 573:ad23fe03a082 | 216 | { |
mbed_official | 573:ad23fe03a082 | 217 | hcan->State= HAL_CAN_STATE_TIMEOUT; |
mbed_official | 573:ad23fe03a082 | 218 | /* Process unlocked */ |
mbed_official | 573:ad23fe03a082 | 219 | __HAL_UNLOCK(hcan); |
mbed_official | 573:ad23fe03a082 | 220 | return HAL_TIMEOUT; |
mbed_official | 573:ad23fe03a082 | 221 | } |
mbed_official | 573:ad23fe03a082 | 222 | } |
mbed_official | 573:ad23fe03a082 | 223 | |
mbed_official | 573:ad23fe03a082 | 224 | /* Check acknowledge */ |
mbed_official | 573:ad23fe03a082 | 225 | if ((hcan->Instance->MSR & CAN_MSR_INAK) != CAN_MSR_INAK) |
mbed_official | 573:ad23fe03a082 | 226 | { |
mbed_official | 573:ad23fe03a082 | 227 | InitStatus = CAN_INITSTATUS_FAILED; |
mbed_official | 573:ad23fe03a082 | 228 | } |
mbed_official | 573:ad23fe03a082 | 229 | else |
mbed_official | 573:ad23fe03a082 | 230 | { |
mbed_official | 573:ad23fe03a082 | 231 | /* Set the time triggered communication mode */ |
mbed_official | 573:ad23fe03a082 | 232 | if (hcan->Init.TTCM == ENABLE) |
mbed_official | 573:ad23fe03a082 | 233 | { |
mbed_official | 573:ad23fe03a082 | 234 | hcan->Instance->MCR |= CAN_MCR_TTCM; |
mbed_official | 573:ad23fe03a082 | 235 | } |
mbed_official | 573:ad23fe03a082 | 236 | else |
mbed_official | 573:ad23fe03a082 | 237 | { |
mbed_official | 573:ad23fe03a082 | 238 | hcan->Instance->MCR &= ~(uint32_t)CAN_MCR_TTCM; |
mbed_official | 573:ad23fe03a082 | 239 | } |
mbed_official | 573:ad23fe03a082 | 240 | |
mbed_official | 573:ad23fe03a082 | 241 | /* Set the automatic bus-off management */ |
mbed_official | 573:ad23fe03a082 | 242 | if (hcan->Init.ABOM == ENABLE) |
mbed_official | 573:ad23fe03a082 | 243 | { |
mbed_official | 573:ad23fe03a082 | 244 | hcan->Instance->MCR |= CAN_MCR_ABOM; |
mbed_official | 573:ad23fe03a082 | 245 | } |
mbed_official | 573:ad23fe03a082 | 246 | else |
mbed_official | 573:ad23fe03a082 | 247 | { |
mbed_official | 573:ad23fe03a082 | 248 | hcan->Instance->MCR &= ~(uint32_t)CAN_MCR_ABOM; |
mbed_official | 573:ad23fe03a082 | 249 | } |
mbed_official | 573:ad23fe03a082 | 250 | |
mbed_official | 573:ad23fe03a082 | 251 | /* Set the automatic wake-up mode */ |
mbed_official | 573:ad23fe03a082 | 252 | if (hcan->Init.AWUM == ENABLE) |
mbed_official | 573:ad23fe03a082 | 253 | { |
mbed_official | 573:ad23fe03a082 | 254 | hcan->Instance->MCR |= CAN_MCR_AWUM; |
mbed_official | 573:ad23fe03a082 | 255 | } |
mbed_official | 573:ad23fe03a082 | 256 | else |
mbed_official | 573:ad23fe03a082 | 257 | { |
mbed_official | 573:ad23fe03a082 | 258 | hcan->Instance->MCR &= ~(uint32_t)CAN_MCR_AWUM; |
mbed_official | 573:ad23fe03a082 | 259 | } |
mbed_official | 573:ad23fe03a082 | 260 | |
mbed_official | 573:ad23fe03a082 | 261 | /* Set the no automatic retransmission */ |
mbed_official | 573:ad23fe03a082 | 262 | if (hcan->Init.NART == ENABLE) |
mbed_official | 573:ad23fe03a082 | 263 | { |
mbed_official | 573:ad23fe03a082 | 264 | hcan->Instance->MCR |= CAN_MCR_NART; |
mbed_official | 573:ad23fe03a082 | 265 | } |
mbed_official | 573:ad23fe03a082 | 266 | else |
mbed_official | 573:ad23fe03a082 | 267 | { |
mbed_official | 573:ad23fe03a082 | 268 | hcan->Instance->MCR &= ~(uint32_t)CAN_MCR_NART; |
mbed_official | 573:ad23fe03a082 | 269 | } |
mbed_official | 573:ad23fe03a082 | 270 | |
mbed_official | 573:ad23fe03a082 | 271 | /* Set the receive FIFO locked mode */ |
mbed_official | 573:ad23fe03a082 | 272 | if (hcan->Init.RFLM == ENABLE) |
mbed_official | 573:ad23fe03a082 | 273 | { |
mbed_official | 573:ad23fe03a082 | 274 | hcan->Instance->MCR |= CAN_MCR_RFLM; |
mbed_official | 573:ad23fe03a082 | 275 | } |
mbed_official | 573:ad23fe03a082 | 276 | else |
mbed_official | 573:ad23fe03a082 | 277 | { |
mbed_official | 573:ad23fe03a082 | 278 | hcan->Instance->MCR &= ~(uint32_t)CAN_MCR_RFLM; |
mbed_official | 573:ad23fe03a082 | 279 | } |
mbed_official | 573:ad23fe03a082 | 280 | |
mbed_official | 573:ad23fe03a082 | 281 | /* Set the transmit FIFO priority */ |
mbed_official | 573:ad23fe03a082 | 282 | if (hcan->Init.TXFP == ENABLE) |
mbed_official | 573:ad23fe03a082 | 283 | { |
mbed_official | 573:ad23fe03a082 | 284 | hcan->Instance->MCR |= CAN_MCR_TXFP; |
mbed_official | 573:ad23fe03a082 | 285 | } |
mbed_official | 573:ad23fe03a082 | 286 | else |
mbed_official | 573:ad23fe03a082 | 287 | { |
mbed_official | 573:ad23fe03a082 | 288 | hcan->Instance->MCR &= ~(uint32_t)CAN_MCR_TXFP; |
mbed_official | 573:ad23fe03a082 | 289 | } |
mbed_official | 573:ad23fe03a082 | 290 | |
mbed_official | 573:ad23fe03a082 | 291 | /* Set the bit timing register */ |
mbed_official | 573:ad23fe03a082 | 292 | hcan->Instance->BTR = (uint32_t)((uint32_t)hcan->Init.Mode) | \ |
mbed_official | 573:ad23fe03a082 | 293 | ((uint32_t)hcan->Init.SJW) | \ |
mbed_official | 573:ad23fe03a082 | 294 | ((uint32_t)hcan->Init.BS1) | \ |
mbed_official | 573:ad23fe03a082 | 295 | ((uint32_t)hcan->Init.BS2) | \ |
mbed_official | 573:ad23fe03a082 | 296 | ((uint32_t)hcan->Init.Prescaler - 1); |
mbed_official | 573:ad23fe03a082 | 297 | |
mbed_official | 573:ad23fe03a082 | 298 | /* Request leave initialisation */ |
mbed_official | 573:ad23fe03a082 | 299 | hcan->Instance->MCR &= ~(uint32_t)CAN_MCR_INRQ; |
mbed_official | 573:ad23fe03a082 | 300 | |
mbed_official | 573:ad23fe03a082 | 301 | /* Get tick */ |
mbed_official | 573:ad23fe03a082 | 302 | tickstart = HAL_GetTick(); |
mbed_official | 573:ad23fe03a082 | 303 | |
mbed_official | 573:ad23fe03a082 | 304 | /* Wait the acknowledge */ |
mbed_official | 573:ad23fe03a082 | 305 | while((hcan->Instance->MSR & CAN_MSR_INAK) == CAN_MSR_INAK) |
mbed_official | 573:ad23fe03a082 | 306 | { |
mbed_official | 573:ad23fe03a082 | 307 | if((HAL_GetTick() - tickstart ) > CAN_TIMEOUT_VALUE) |
mbed_official | 573:ad23fe03a082 | 308 | { |
mbed_official | 573:ad23fe03a082 | 309 | hcan->State= HAL_CAN_STATE_TIMEOUT; |
mbed_official | 573:ad23fe03a082 | 310 | /* Process unlocked */ |
mbed_official | 573:ad23fe03a082 | 311 | __HAL_UNLOCK(hcan); |
mbed_official | 573:ad23fe03a082 | 312 | return HAL_TIMEOUT; |
mbed_official | 573:ad23fe03a082 | 313 | } |
mbed_official | 573:ad23fe03a082 | 314 | } |
mbed_official | 573:ad23fe03a082 | 315 | |
mbed_official | 573:ad23fe03a082 | 316 | /* Check acknowledged */ |
mbed_official | 573:ad23fe03a082 | 317 | if ((hcan->Instance->MSR & CAN_MSR_INAK) == CAN_MSR_INAK) |
mbed_official | 573:ad23fe03a082 | 318 | { |
mbed_official | 573:ad23fe03a082 | 319 | InitStatus = CAN_INITSTATUS_FAILED; |
mbed_official | 573:ad23fe03a082 | 320 | } |
mbed_official | 573:ad23fe03a082 | 321 | else |
mbed_official | 573:ad23fe03a082 | 322 | { |
mbed_official | 573:ad23fe03a082 | 323 | InitStatus = CAN_INITSTATUS_SUCCESS; |
mbed_official | 573:ad23fe03a082 | 324 | } |
mbed_official | 573:ad23fe03a082 | 325 | } |
mbed_official | 573:ad23fe03a082 | 326 | |
mbed_official | 573:ad23fe03a082 | 327 | if(InitStatus == CAN_INITSTATUS_SUCCESS) |
mbed_official | 573:ad23fe03a082 | 328 | { |
mbed_official | 573:ad23fe03a082 | 329 | /* Set CAN error code to none */ |
mbed_official | 573:ad23fe03a082 | 330 | hcan->ErrorCode = HAL_CAN_ERROR_NONE; |
mbed_official | 573:ad23fe03a082 | 331 | |
mbed_official | 573:ad23fe03a082 | 332 | /* Initialize the CAN state */ |
mbed_official | 573:ad23fe03a082 | 333 | hcan->State = HAL_CAN_STATE_READY; |
mbed_official | 573:ad23fe03a082 | 334 | |
mbed_official | 573:ad23fe03a082 | 335 | /* Return function status */ |
mbed_official | 573:ad23fe03a082 | 336 | return HAL_OK; |
mbed_official | 573:ad23fe03a082 | 337 | } |
mbed_official | 573:ad23fe03a082 | 338 | else |
mbed_official | 573:ad23fe03a082 | 339 | { |
mbed_official | 573:ad23fe03a082 | 340 | /* Initialize the CAN state */ |
mbed_official | 573:ad23fe03a082 | 341 | hcan->State = HAL_CAN_STATE_ERROR; |
mbed_official | 573:ad23fe03a082 | 342 | |
mbed_official | 573:ad23fe03a082 | 343 | /* Return function status */ |
mbed_official | 573:ad23fe03a082 | 344 | return HAL_ERROR; |
mbed_official | 573:ad23fe03a082 | 345 | } |
mbed_official | 573:ad23fe03a082 | 346 | } |
mbed_official | 573:ad23fe03a082 | 347 | |
mbed_official | 573:ad23fe03a082 | 348 | /** |
mbed_official | 573:ad23fe03a082 | 349 | * @brief Configures the CAN reception filter according to the specified |
mbed_official | 573:ad23fe03a082 | 350 | * parameters in the CAN_FilterInitStruct. |
mbed_official | 573:ad23fe03a082 | 351 | * @param hcan: pointer to a CAN_HandleTypeDef structure that contains |
mbed_official | 573:ad23fe03a082 | 352 | * the configuration information for the specified CAN. |
mbed_official | 573:ad23fe03a082 | 353 | * @param sFilterConfig: pointer to a CAN_FilterConfTypeDef structure that |
mbed_official | 573:ad23fe03a082 | 354 | * contains the filter configuration information. |
mbed_official | 573:ad23fe03a082 | 355 | * @retval None |
mbed_official | 573:ad23fe03a082 | 356 | */ |
mbed_official | 573:ad23fe03a082 | 357 | HAL_StatusTypeDef HAL_CAN_ConfigFilter(CAN_HandleTypeDef* hcan, CAN_FilterConfTypeDef* sFilterConfig) |
mbed_official | 573:ad23fe03a082 | 358 | { |
mbed_official | 573:ad23fe03a082 | 359 | uint32_t filternbrbitpos = 0; |
mbed_official | 573:ad23fe03a082 | 360 | |
mbed_official | 573:ad23fe03a082 | 361 | /* Check the parameters */ |
mbed_official | 573:ad23fe03a082 | 362 | assert_param(IS_CAN_FILTER_NUMBER(sFilterConfig->FilterNumber)); |
mbed_official | 573:ad23fe03a082 | 363 | assert_param(IS_CAN_FILTER_MODE(sFilterConfig->FilterMode)); |
mbed_official | 573:ad23fe03a082 | 364 | assert_param(IS_CAN_FILTER_SCALE(sFilterConfig->FilterScale)); |
mbed_official | 573:ad23fe03a082 | 365 | assert_param(IS_CAN_FILTER_FIFO(sFilterConfig->FilterFIFOAssignment)); |
mbed_official | 573:ad23fe03a082 | 366 | assert_param(IS_FUNCTIONAL_STATE(sFilterConfig->FilterActivation)); |
mbed_official | 573:ad23fe03a082 | 367 | assert_param(IS_CAN_BANKNUMBER(sFilterConfig->BankNumber)); |
mbed_official | 573:ad23fe03a082 | 368 | |
mbed_official | 573:ad23fe03a082 | 369 | filternbrbitpos = ((uint32_t)1) << sFilterConfig->FilterNumber; |
mbed_official | 573:ad23fe03a082 | 370 | |
mbed_official | 573:ad23fe03a082 | 371 | /* Initialisation mode for the filter */ |
mbed_official | 573:ad23fe03a082 | 372 | CAN1->FMR |= (uint32_t)CAN_FMR_FINIT; |
mbed_official | 573:ad23fe03a082 | 373 | |
mbed_official | 573:ad23fe03a082 | 374 | /* Select the start slave bank */ |
mbed_official | 573:ad23fe03a082 | 375 | CAN1->FMR &= ~((uint32_t)CAN_FMR_CAN2SB); |
mbed_official | 573:ad23fe03a082 | 376 | CAN1->FMR |= (uint32_t)(sFilterConfig->BankNumber << 8); |
mbed_official | 573:ad23fe03a082 | 377 | |
mbed_official | 573:ad23fe03a082 | 378 | /* Filter Deactivation */ |
mbed_official | 573:ad23fe03a082 | 379 | CAN1->FA1R &= ~(uint32_t)filternbrbitpos; |
mbed_official | 573:ad23fe03a082 | 380 | |
mbed_official | 573:ad23fe03a082 | 381 | /* Filter Scale */ |
mbed_official | 573:ad23fe03a082 | 382 | if (sFilterConfig->FilterScale == CAN_FILTERSCALE_16BIT) |
mbed_official | 573:ad23fe03a082 | 383 | { |
mbed_official | 573:ad23fe03a082 | 384 | /* 16-bit scale for the filter */ |
mbed_official | 573:ad23fe03a082 | 385 | CAN1->FS1R &= ~(uint32_t)filternbrbitpos; |
mbed_official | 573:ad23fe03a082 | 386 | |
mbed_official | 573:ad23fe03a082 | 387 | /* First 16-bit identifier and First 16-bit mask */ |
mbed_official | 573:ad23fe03a082 | 388 | /* Or First 16-bit identifier and Second 16-bit identifier */ |
mbed_official | 573:ad23fe03a082 | 389 | CAN1->sFilterRegister[sFilterConfig->FilterNumber].FR1 = |
mbed_official | 573:ad23fe03a082 | 390 | ((0x0000FFFF & (uint32_t)sFilterConfig->FilterMaskIdLow) << 16) | |
mbed_official | 573:ad23fe03a082 | 391 | (0x0000FFFF & (uint32_t)sFilterConfig->FilterIdLow); |
mbed_official | 573:ad23fe03a082 | 392 | |
mbed_official | 573:ad23fe03a082 | 393 | /* Second 16-bit identifier and Second 16-bit mask */ |
mbed_official | 573:ad23fe03a082 | 394 | /* Or Third 16-bit identifier and Fourth 16-bit identifier */ |
mbed_official | 573:ad23fe03a082 | 395 | CAN1->sFilterRegister[sFilterConfig->FilterNumber].FR2 = |
mbed_official | 573:ad23fe03a082 | 396 | ((0x0000FFFF & (uint32_t)sFilterConfig->FilterMaskIdHigh) << 16) | |
mbed_official | 573:ad23fe03a082 | 397 | (0x0000FFFF & (uint32_t)sFilterConfig->FilterIdHigh); |
mbed_official | 573:ad23fe03a082 | 398 | } |
mbed_official | 573:ad23fe03a082 | 399 | |
mbed_official | 573:ad23fe03a082 | 400 | if (sFilterConfig->FilterScale == CAN_FILTERSCALE_32BIT) |
mbed_official | 573:ad23fe03a082 | 401 | { |
mbed_official | 573:ad23fe03a082 | 402 | /* 32-bit scale for the filter */ |
mbed_official | 573:ad23fe03a082 | 403 | CAN1->FS1R |= filternbrbitpos; |
mbed_official | 573:ad23fe03a082 | 404 | /* 32-bit identifier or First 32-bit identifier */ |
mbed_official | 573:ad23fe03a082 | 405 | CAN1->sFilterRegister[sFilterConfig->FilterNumber].FR1 = |
mbed_official | 573:ad23fe03a082 | 406 | ((0x0000FFFF & (uint32_t)sFilterConfig->FilterIdHigh) << 16) | |
mbed_official | 573:ad23fe03a082 | 407 | (0x0000FFFF & (uint32_t)sFilterConfig->FilterIdLow); |
mbed_official | 573:ad23fe03a082 | 408 | /* 32-bit mask or Second 32-bit identifier */ |
mbed_official | 573:ad23fe03a082 | 409 | CAN1->sFilterRegister[sFilterConfig->FilterNumber].FR2 = |
mbed_official | 573:ad23fe03a082 | 410 | ((0x0000FFFF & (uint32_t)sFilterConfig->FilterMaskIdHigh) << 16) | |
mbed_official | 573:ad23fe03a082 | 411 | (0x0000FFFF & (uint32_t)sFilterConfig->FilterMaskIdLow); |
mbed_official | 573:ad23fe03a082 | 412 | } |
mbed_official | 573:ad23fe03a082 | 413 | |
mbed_official | 573:ad23fe03a082 | 414 | /* Filter Mode */ |
mbed_official | 573:ad23fe03a082 | 415 | if (sFilterConfig->FilterMode == CAN_FILTERMODE_IDMASK) |
mbed_official | 573:ad23fe03a082 | 416 | { |
mbed_official | 573:ad23fe03a082 | 417 | /*Id/Mask mode for the filter*/ |
mbed_official | 573:ad23fe03a082 | 418 | CAN1->FM1R &= ~(uint32_t)filternbrbitpos; |
mbed_official | 573:ad23fe03a082 | 419 | } |
mbed_official | 573:ad23fe03a082 | 420 | else /* CAN_FilterInitStruct->CAN_FilterMode == CAN_FilterMode_IdList */ |
mbed_official | 573:ad23fe03a082 | 421 | { |
mbed_official | 573:ad23fe03a082 | 422 | /*Identifier list mode for the filter*/ |
mbed_official | 573:ad23fe03a082 | 423 | CAN1->FM1R |= (uint32_t)filternbrbitpos; |
mbed_official | 573:ad23fe03a082 | 424 | } |
mbed_official | 573:ad23fe03a082 | 425 | |
mbed_official | 573:ad23fe03a082 | 426 | /* Filter FIFO assignment */ |
mbed_official | 573:ad23fe03a082 | 427 | if (sFilterConfig->FilterFIFOAssignment == CAN_FILTER_FIFO0) |
mbed_official | 573:ad23fe03a082 | 428 | { |
mbed_official | 573:ad23fe03a082 | 429 | /* FIFO 0 assignation for the filter */ |
mbed_official | 573:ad23fe03a082 | 430 | CAN1->FFA1R &= ~(uint32_t)filternbrbitpos; |
mbed_official | 573:ad23fe03a082 | 431 | } |
mbed_official | 573:ad23fe03a082 | 432 | |
mbed_official | 573:ad23fe03a082 | 433 | if (sFilterConfig->FilterFIFOAssignment == CAN_FILTER_FIFO1) |
mbed_official | 573:ad23fe03a082 | 434 | { |
mbed_official | 573:ad23fe03a082 | 435 | /* FIFO 1 assignation for the filter */ |
mbed_official | 573:ad23fe03a082 | 436 | CAN1->FFA1R |= (uint32_t)filternbrbitpos; |
mbed_official | 573:ad23fe03a082 | 437 | } |
mbed_official | 573:ad23fe03a082 | 438 | |
mbed_official | 573:ad23fe03a082 | 439 | /* Filter activation */ |
mbed_official | 573:ad23fe03a082 | 440 | if (sFilterConfig->FilterActivation == ENABLE) |
mbed_official | 573:ad23fe03a082 | 441 | { |
mbed_official | 573:ad23fe03a082 | 442 | CAN1->FA1R |= filternbrbitpos; |
mbed_official | 573:ad23fe03a082 | 443 | } |
mbed_official | 573:ad23fe03a082 | 444 | |
mbed_official | 573:ad23fe03a082 | 445 | /* Leave the initialisation mode for the filter */ |
mbed_official | 573:ad23fe03a082 | 446 | CAN1->FMR &= ~((uint32_t)CAN_FMR_FINIT); |
mbed_official | 573:ad23fe03a082 | 447 | |
mbed_official | 573:ad23fe03a082 | 448 | /* Return function status */ |
mbed_official | 573:ad23fe03a082 | 449 | return HAL_OK; |
mbed_official | 573:ad23fe03a082 | 450 | } |
mbed_official | 573:ad23fe03a082 | 451 | |
mbed_official | 573:ad23fe03a082 | 452 | /** |
mbed_official | 573:ad23fe03a082 | 453 | * @brief Deinitializes the CANx peripheral registers to their default reset values. |
mbed_official | 573:ad23fe03a082 | 454 | * @param hcan: pointer to a CAN_HandleTypeDef structure that contains |
mbed_official | 573:ad23fe03a082 | 455 | * the configuration information for the specified CAN. |
mbed_official | 573:ad23fe03a082 | 456 | * @retval HAL status |
mbed_official | 573:ad23fe03a082 | 457 | */ |
mbed_official | 573:ad23fe03a082 | 458 | HAL_StatusTypeDef HAL_CAN_DeInit(CAN_HandleTypeDef* hcan) |
mbed_official | 573:ad23fe03a082 | 459 | { |
mbed_official | 573:ad23fe03a082 | 460 | /* Check CAN handle */ |
mbed_official | 573:ad23fe03a082 | 461 | if(hcan == NULL) |
mbed_official | 573:ad23fe03a082 | 462 | { |
mbed_official | 573:ad23fe03a082 | 463 | return HAL_ERROR; |
mbed_official | 573:ad23fe03a082 | 464 | } |
mbed_official | 573:ad23fe03a082 | 465 | |
mbed_official | 573:ad23fe03a082 | 466 | /* Check the parameters */ |
mbed_official | 573:ad23fe03a082 | 467 | assert_param(IS_CAN_ALL_INSTANCE(hcan->Instance)); |
mbed_official | 573:ad23fe03a082 | 468 | |
mbed_official | 573:ad23fe03a082 | 469 | /* Change CAN state */ |
mbed_official | 573:ad23fe03a082 | 470 | hcan->State = HAL_CAN_STATE_BUSY; |
mbed_official | 573:ad23fe03a082 | 471 | |
mbed_official | 573:ad23fe03a082 | 472 | /* DeInit the low level hardware */ |
mbed_official | 573:ad23fe03a082 | 473 | HAL_CAN_MspDeInit(hcan); |
mbed_official | 573:ad23fe03a082 | 474 | |
mbed_official | 573:ad23fe03a082 | 475 | /* Change CAN state */ |
mbed_official | 573:ad23fe03a082 | 476 | hcan->State = HAL_CAN_STATE_RESET; |
mbed_official | 573:ad23fe03a082 | 477 | |
mbed_official | 573:ad23fe03a082 | 478 | /* Release Lock */ |
mbed_official | 573:ad23fe03a082 | 479 | __HAL_UNLOCK(hcan); |
mbed_official | 573:ad23fe03a082 | 480 | |
mbed_official | 573:ad23fe03a082 | 481 | /* Return function status */ |
mbed_official | 573:ad23fe03a082 | 482 | return HAL_OK; |
mbed_official | 573:ad23fe03a082 | 483 | } |
mbed_official | 573:ad23fe03a082 | 484 | |
mbed_official | 573:ad23fe03a082 | 485 | /** |
mbed_official | 573:ad23fe03a082 | 486 | * @brief Initializes the CAN MSP. |
mbed_official | 573:ad23fe03a082 | 487 | * @param hcan: pointer to a CAN_HandleTypeDef structure that contains |
mbed_official | 573:ad23fe03a082 | 488 | * the configuration information for the specified CAN. |
mbed_official | 573:ad23fe03a082 | 489 | * @retval None |
mbed_official | 573:ad23fe03a082 | 490 | */ |
mbed_official | 573:ad23fe03a082 | 491 | __weak void HAL_CAN_MspInit(CAN_HandleTypeDef* hcan) |
mbed_official | 573:ad23fe03a082 | 492 | { |
mbed_official | 573:ad23fe03a082 | 493 | /* NOTE : This function Should not be modified, when the callback is needed, |
mbed_official | 573:ad23fe03a082 | 494 | the HAL_CAN_MspInit could be implemented in the user file |
mbed_official | 573:ad23fe03a082 | 495 | */ |
mbed_official | 573:ad23fe03a082 | 496 | } |
mbed_official | 573:ad23fe03a082 | 497 | |
mbed_official | 573:ad23fe03a082 | 498 | /** |
mbed_official | 573:ad23fe03a082 | 499 | * @brief DeInitializes the CAN MSP. |
mbed_official | 573:ad23fe03a082 | 500 | * @param hcan: pointer to a CAN_HandleTypeDef structure that contains |
mbed_official | 573:ad23fe03a082 | 501 | * the configuration information for the specified CAN. |
mbed_official | 573:ad23fe03a082 | 502 | * @retval None |
mbed_official | 573:ad23fe03a082 | 503 | */ |
mbed_official | 573:ad23fe03a082 | 504 | __weak void HAL_CAN_MspDeInit(CAN_HandleTypeDef* hcan) |
mbed_official | 573:ad23fe03a082 | 505 | { |
mbed_official | 573:ad23fe03a082 | 506 | /* NOTE : This function Should not be modified, when the callback is needed, |
mbed_official | 573:ad23fe03a082 | 507 | the HAL_CAN_MspDeInit could be implemented in the user file |
mbed_official | 573:ad23fe03a082 | 508 | */ |
mbed_official | 573:ad23fe03a082 | 509 | } |
mbed_official | 573:ad23fe03a082 | 510 | |
mbed_official | 573:ad23fe03a082 | 511 | /** |
mbed_official | 573:ad23fe03a082 | 512 | * @} |
mbed_official | 573:ad23fe03a082 | 513 | */ |
mbed_official | 573:ad23fe03a082 | 514 | |
mbed_official | 573:ad23fe03a082 | 515 | /** @defgroup CAN_Exported_Functions_Group2 IO operation functions |
mbed_official | 573:ad23fe03a082 | 516 | * @brief IO operation functions |
mbed_official | 573:ad23fe03a082 | 517 | * |
mbed_official | 573:ad23fe03a082 | 518 | @verbatim |
mbed_official | 573:ad23fe03a082 | 519 | ============================================================================== |
mbed_official | 573:ad23fe03a082 | 520 | ##### IO operation functions ##### |
mbed_official | 573:ad23fe03a082 | 521 | ============================================================================== |
mbed_official | 573:ad23fe03a082 | 522 | [..] This section provides functions allowing to: |
mbed_official | 573:ad23fe03a082 | 523 | (+) Transmit a CAN frame message. |
mbed_official | 573:ad23fe03a082 | 524 | (+) Receive a CAN frame message. |
mbed_official | 573:ad23fe03a082 | 525 | (+) Enter CAN peripheral in sleep mode. |
mbed_official | 573:ad23fe03a082 | 526 | (+) Wake up the CAN peripheral from sleep mode. |
mbed_official | 573:ad23fe03a082 | 527 | |
mbed_official | 573:ad23fe03a082 | 528 | @endverbatim |
mbed_official | 573:ad23fe03a082 | 529 | * @{ |
mbed_official | 573:ad23fe03a082 | 530 | */ |
mbed_official | 573:ad23fe03a082 | 531 | |
mbed_official | 573:ad23fe03a082 | 532 | /** |
mbed_official | 573:ad23fe03a082 | 533 | * @brief Initiates and transmits a CAN frame message. |
mbed_official | 573:ad23fe03a082 | 534 | * @param hcan: pointer to a CAN_HandleTypeDef structure that contains |
mbed_official | 573:ad23fe03a082 | 535 | * the configuration information for the specified CAN. |
mbed_official | 573:ad23fe03a082 | 536 | * @param Timeout: Specify Timeout value |
mbed_official | 573:ad23fe03a082 | 537 | * @retval HAL status |
mbed_official | 573:ad23fe03a082 | 538 | */ |
mbed_official | 573:ad23fe03a082 | 539 | HAL_StatusTypeDef HAL_CAN_Transmit(CAN_HandleTypeDef* hcan, uint32_t Timeout) |
mbed_official | 573:ad23fe03a082 | 540 | { |
mbed_official | 573:ad23fe03a082 | 541 | uint32_t transmitmailbox = 5; |
mbed_official | 573:ad23fe03a082 | 542 | uint32_t tickstart = 0; |
mbed_official | 573:ad23fe03a082 | 543 | |
mbed_official | 573:ad23fe03a082 | 544 | /* Check the parameters */ |
mbed_official | 573:ad23fe03a082 | 545 | assert_param(IS_CAN_IDTYPE(hcan->pTxMsg->IDE)); |
mbed_official | 573:ad23fe03a082 | 546 | assert_param(IS_CAN_RTR(hcan->pTxMsg->RTR)); |
mbed_official | 573:ad23fe03a082 | 547 | assert_param(IS_CAN_DLC(hcan->pTxMsg->DLC)); |
mbed_official | 573:ad23fe03a082 | 548 | |
mbed_official | 573:ad23fe03a082 | 549 | /* Process locked */ |
mbed_official | 573:ad23fe03a082 | 550 | __HAL_LOCK(hcan); |
mbed_official | 573:ad23fe03a082 | 551 | |
mbed_official | 573:ad23fe03a082 | 552 | if(hcan->State == HAL_CAN_STATE_BUSY_RX) |
mbed_official | 573:ad23fe03a082 | 553 | { |
mbed_official | 573:ad23fe03a082 | 554 | /* Change CAN state */ |
mbed_official | 573:ad23fe03a082 | 555 | hcan->State = HAL_CAN_STATE_BUSY_TX_RX; |
mbed_official | 573:ad23fe03a082 | 556 | } |
mbed_official | 573:ad23fe03a082 | 557 | else |
mbed_official | 573:ad23fe03a082 | 558 | { |
mbed_official | 573:ad23fe03a082 | 559 | /* Change CAN state */ |
mbed_official | 573:ad23fe03a082 | 560 | hcan->State = HAL_CAN_STATE_BUSY_TX; |
mbed_official | 573:ad23fe03a082 | 561 | } |
mbed_official | 573:ad23fe03a082 | 562 | |
mbed_official | 573:ad23fe03a082 | 563 | /* Select one empty transmit mailbox */ |
mbed_official | 573:ad23fe03a082 | 564 | if ((hcan->Instance->TSR&CAN_TSR_TME0) == CAN_TSR_TME0) |
mbed_official | 573:ad23fe03a082 | 565 | { |
mbed_official | 573:ad23fe03a082 | 566 | transmitmailbox = 0; |
mbed_official | 573:ad23fe03a082 | 567 | } |
mbed_official | 573:ad23fe03a082 | 568 | else if ((hcan->Instance->TSR&CAN_TSR_TME1) == CAN_TSR_TME1) |
mbed_official | 573:ad23fe03a082 | 569 | { |
mbed_official | 573:ad23fe03a082 | 570 | transmitmailbox = 1; |
mbed_official | 573:ad23fe03a082 | 571 | } |
mbed_official | 573:ad23fe03a082 | 572 | else if ((hcan->Instance->TSR&CAN_TSR_TME2) == CAN_TSR_TME2) |
mbed_official | 573:ad23fe03a082 | 573 | { |
mbed_official | 573:ad23fe03a082 | 574 | transmitmailbox = 2; |
mbed_official | 573:ad23fe03a082 | 575 | } |
mbed_official | 573:ad23fe03a082 | 576 | else |
mbed_official | 573:ad23fe03a082 | 577 | { |
mbed_official | 573:ad23fe03a082 | 578 | transmitmailbox = CAN_TXSTATUS_NOMAILBOX; |
mbed_official | 573:ad23fe03a082 | 579 | } |
mbed_official | 573:ad23fe03a082 | 580 | |
mbed_official | 573:ad23fe03a082 | 581 | if (transmitmailbox != CAN_TXSTATUS_NOMAILBOX) |
mbed_official | 573:ad23fe03a082 | 582 | { |
mbed_official | 573:ad23fe03a082 | 583 | /* Set up the Id */ |
mbed_official | 573:ad23fe03a082 | 584 | hcan->Instance->sTxMailBox[transmitmailbox].TIR &= CAN_TI0R_TXRQ; |
mbed_official | 573:ad23fe03a082 | 585 | if (hcan->pTxMsg->IDE == CAN_ID_STD) |
mbed_official | 573:ad23fe03a082 | 586 | { |
mbed_official | 573:ad23fe03a082 | 587 | assert_param(IS_CAN_STDID(hcan->pTxMsg->StdId)); |
mbed_official | 573:ad23fe03a082 | 588 | hcan->Instance->sTxMailBox[transmitmailbox].TIR |= ((hcan->pTxMsg->StdId << 21) | \ |
mbed_official | 573:ad23fe03a082 | 589 | hcan->pTxMsg->RTR); |
mbed_official | 573:ad23fe03a082 | 590 | } |
mbed_official | 573:ad23fe03a082 | 591 | else |
mbed_official | 573:ad23fe03a082 | 592 | { |
mbed_official | 573:ad23fe03a082 | 593 | assert_param(IS_CAN_EXTID(hcan->pTxMsg->ExtId)); |
mbed_official | 573:ad23fe03a082 | 594 | hcan->Instance->sTxMailBox[transmitmailbox].TIR |= ((hcan->pTxMsg->ExtId << 3) | \ |
mbed_official | 573:ad23fe03a082 | 595 | hcan->pTxMsg->IDE | \ |
mbed_official | 573:ad23fe03a082 | 596 | hcan->pTxMsg->RTR); |
mbed_official | 573:ad23fe03a082 | 597 | } |
mbed_official | 573:ad23fe03a082 | 598 | |
mbed_official | 573:ad23fe03a082 | 599 | /* Set up the DLC */ |
mbed_official | 573:ad23fe03a082 | 600 | hcan->pTxMsg->DLC &= (uint8_t)0x0000000F; |
mbed_official | 573:ad23fe03a082 | 601 | hcan->Instance->sTxMailBox[transmitmailbox].TDTR &= (uint32_t)0xFFFFFFF0; |
mbed_official | 573:ad23fe03a082 | 602 | hcan->Instance->sTxMailBox[transmitmailbox].TDTR |= hcan->pTxMsg->DLC; |
mbed_official | 573:ad23fe03a082 | 603 | |
mbed_official | 573:ad23fe03a082 | 604 | /* Set up the data field */ |
mbed_official | 573:ad23fe03a082 | 605 | hcan->Instance->sTxMailBox[transmitmailbox].TDLR = (((uint32_t)hcan->pTxMsg->Data[3] << 24) | |
mbed_official | 573:ad23fe03a082 | 606 | ((uint32_t)hcan->pTxMsg->Data[2] << 16) | |
mbed_official | 573:ad23fe03a082 | 607 | ((uint32_t)hcan->pTxMsg->Data[1] << 8) | |
mbed_official | 573:ad23fe03a082 | 608 | ((uint32_t)hcan->pTxMsg->Data[0])); |
mbed_official | 573:ad23fe03a082 | 609 | hcan->Instance->sTxMailBox[transmitmailbox].TDHR = (((uint32_t)hcan->pTxMsg->Data[7] << 24) | |
mbed_official | 573:ad23fe03a082 | 610 | ((uint32_t)hcan->pTxMsg->Data[6] << 16) | |
mbed_official | 573:ad23fe03a082 | 611 | ((uint32_t)hcan->pTxMsg->Data[5] << 8) | |
mbed_official | 573:ad23fe03a082 | 612 | ((uint32_t)hcan->pTxMsg->Data[4])); |
mbed_official | 573:ad23fe03a082 | 613 | /* Request transmission */ |
mbed_official | 573:ad23fe03a082 | 614 | hcan->Instance->sTxMailBox[transmitmailbox].TIR |= CAN_TI0R_TXRQ; |
mbed_official | 573:ad23fe03a082 | 615 | |
mbed_official | 573:ad23fe03a082 | 616 | /* Get tick */ |
mbed_official | 573:ad23fe03a082 | 617 | tickstart = HAL_GetTick(); |
mbed_official | 573:ad23fe03a082 | 618 | |
mbed_official | 573:ad23fe03a082 | 619 | /* Check End of transmission flag */ |
mbed_official | 573:ad23fe03a082 | 620 | while(!(__HAL_CAN_TRANSMIT_STATUS(hcan, transmitmailbox))) |
mbed_official | 573:ad23fe03a082 | 621 | { |
mbed_official | 573:ad23fe03a082 | 622 | /* Check for the Timeout */ |
mbed_official | 573:ad23fe03a082 | 623 | if(Timeout != HAL_MAX_DELAY) |
mbed_official | 573:ad23fe03a082 | 624 | { |
mbed_official | 573:ad23fe03a082 | 625 | if((Timeout == 0)||((HAL_GetTick() - tickstart ) > Timeout)) |
mbed_official | 573:ad23fe03a082 | 626 | { |
mbed_official | 573:ad23fe03a082 | 627 | hcan->State = HAL_CAN_STATE_TIMEOUT; |
mbed_official | 573:ad23fe03a082 | 628 | /* Process unlocked */ |
mbed_official | 573:ad23fe03a082 | 629 | __HAL_UNLOCK(hcan); |
mbed_official | 573:ad23fe03a082 | 630 | return HAL_TIMEOUT; |
mbed_official | 573:ad23fe03a082 | 631 | } |
mbed_official | 573:ad23fe03a082 | 632 | } |
mbed_official | 573:ad23fe03a082 | 633 | } |
mbed_official | 573:ad23fe03a082 | 634 | if(hcan->State == HAL_CAN_STATE_BUSY_TX_RX) |
mbed_official | 573:ad23fe03a082 | 635 | { |
mbed_official | 573:ad23fe03a082 | 636 | /* Change CAN state */ |
mbed_official | 573:ad23fe03a082 | 637 | hcan->State = HAL_CAN_STATE_BUSY_RX; |
mbed_official | 573:ad23fe03a082 | 638 | |
mbed_official | 573:ad23fe03a082 | 639 | /* Process unlocked */ |
mbed_official | 573:ad23fe03a082 | 640 | __HAL_UNLOCK(hcan); |
mbed_official | 573:ad23fe03a082 | 641 | } |
mbed_official | 573:ad23fe03a082 | 642 | else |
mbed_official | 573:ad23fe03a082 | 643 | { |
mbed_official | 573:ad23fe03a082 | 644 | /* Change CAN state */ |
mbed_official | 573:ad23fe03a082 | 645 | hcan->State = HAL_CAN_STATE_READY; |
mbed_official | 573:ad23fe03a082 | 646 | |
mbed_official | 573:ad23fe03a082 | 647 | /* Process unlocked */ |
mbed_official | 573:ad23fe03a082 | 648 | __HAL_UNLOCK(hcan); |
mbed_official | 573:ad23fe03a082 | 649 | } |
mbed_official | 573:ad23fe03a082 | 650 | |
mbed_official | 573:ad23fe03a082 | 651 | /* Return function status */ |
mbed_official | 573:ad23fe03a082 | 652 | return HAL_OK; |
mbed_official | 573:ad23fe03a082 | 653 | } |
mbed_official | 573:ad23fe03a082 | 654 | else |
mbed_official | 573:ad23fe03a082 | 655 | { |
mbed_official | 573:ad23fe03a082 | 656 | /* Change CAN state */ |
mbed_official | 573:ad23fe03a082 | 657 | hcan->State = HAL_CAN_STATE_ERROR; |
mbed_official | 573:ad23fe03a082 | 658 | |
mbed_official | 573:ad23fe03a082 | 659 | /* Process unlocked */ |
mbed_official | 573:ad23fe03a082 | 660 | __HAL_UNLOCK(hcan); |
mbed_official | 573:ad23fe03a082 | 661 | |
mbed_official | 573:ad23fe03a082 | 662 | /* Return function status */ |
mbed_official | 573:ad23fe03a082 | 663 | return HAL_ERROR; |
mbed_official | 573:ad23fe03a082 | 664 | } |
mbed_official | 573:ad23fe03a082 | 665 | } |
mbed_official | 573:ad23fe03a082 | 666 | |
mbed_official | 573:ad23fe03a082 | 667 | /** |
mbed_official | 573:ad23fe03a082 | 668 | * @brief Initiates and transmits a CAN frame message. |
mbed_official | 573:ad23fe03a082 | 669 | * @param hcan: pointer to a CAN_HandleTypeDef structure that contains |
mbed_official | 573:ad23fe03a082 | 670 | * the configuration information for the specified CAN. |
mbed_official | 573:ad23fe03a082 | 671 | * @retval HAL status |
mbed_official | 573:ad23fe03a082 | 672 | */ |
mbed_official | 573:ad23fe03a082 | 673 | HAL_StatusTypeDef HAL_CAN_Transmit_IT(CAN_HandleTypeDef* hcan) |
mbed_official | 573:ad23fe03a082 | 674 | { |
mbed_official | 573:ad23fe03a082 | 675 | uint32_t transmitmailbox = 5; |
mbed_official | 573:ad23fe03a082 | 676 | uint32_t tmp = 0; |
mbed_official | 573:ad23fe03a082 | 677 | |
mbed_official | 573:ad23fe03a082 | 678 | /* Check the parameters */ |
mbed_official | 573:ad23fe03a082 | 679 | assert_param(IS_CAN_IDTYPE(hcan->pTxMsg->IDE)); |
mbed_official | 573:ad23fe03a082 | 680 | assert_param(IS_CAN_RTR(hcan->pTxMsg->RTR)); |
mbed_official | 573:ad23fe03a082 | 681 | assert_param(IS_CAN_DLC(hcan->pTxMsg->DLC)); |
mbed_official | 573:ad23fe03a082 | 682 | |
mbed_official | 573:ad23fe03a082 | 683 | tmp = hcan->State; |
mbed_official | 573:ad23fe03a082 | 684 | if((tmp == HAL_CAN_STATE_READY) || (tmp == HAL_CAN_STATE_BUSY_RX)) |
mbed_official | 573:ad23fe03a082 | 685 | { |
mbed_official | 573:ad23fe03a082 | 686 | /* Process Locked */ |
mbed_official | 573:ad23fe03a082 | 687 | __HAL_LOCK(hcan); |
mbed_official | 573:ad23fe03a082 | 688 | |
mbed_official | 573:ad23fe03a082 | 689 | /* Select one empty transmit mailbox */ |
mbed_official | 573:ad23fe03a082 | 690 | if((hcan->Instance->TSR&CAN_TSR_TME0) == CAN_TSR_TME0) |
mbed_official | 573:ad23fe03a082 | 691 | { |
mbed_official | 573:ad23fe03a082 | 692 | transmitmailbox = 0; |
mbed_official | 573:ad23fe03a082 | 693 | } |
mbed_official | 573:ad23fe03a082 | 694 | else if((hcan->Instance->TSR&CAN_TSR_TME1) == CAN_TSR_TME1) |
mbed_official | 573:ad23fe03a082 | 695 | { |
mbed_official | 573:ad23fe03a082 | 696 | transmitmailbox = 1; |
mbed_official | 573:ad23fe03a082 | 697 | } |
mbed_official | 573:ad23fe03a082 | 698 | else if((hcan->Instance->TSR&CAN_TSR_TME2) == CAN_TSR_TME2) |
mbed_official | 573:ad23fe03a082 | 699 | { |
mbed_official | 573:ad23fe03a082 | 700 | transmitmailbox = 2; |
mbed_official | 573:ad23fe03a082 | 701 | } |
mbed_official | 573:ad23fe03a082 | 702 | else |
mbed_official | 573:ad23fe03a082 | 703 | { |
mbed_official | 573:ad23fe03a082 | 704 | transmitmailbox = CAN_TXSTATUS_NOMAILBOX; |
mbed_official | 573:ad23fe03a082 | 705 | } |
mbed_official | 573:ad23fe03a082 | 706 | |
mbed_official | 573:ad23fe03a082 | 707 | if(transmitmailbox != CAN_TXSTATUS_NOMAILBOX) |
mbed_official | 573:ad23fe03a082 | 708 | { |
mbed_official | 573:ad23fe03a082 | 709 | /* Set up the Id */ |
mbed_official | 573:ad23fe03a082 | 710 | hcan->Instance->sTxMailBox[transmitmailbox].TIR &= CAN_TI0R_TXRQ; |
mbed_official | 573:ad23fe03a082 | 711 | if(hcan->pTxMsg->IDE == CAN_ID_STD) |
mbed_official | 573:ad23fe03a082 | 712 | { |
mbed_official | 573:ad23fe03a082 | 713 | assert_param(IS_CAN_STDID(hcan->pTxMsg->StdId)); |
mbed_official | 573:ad23fe03a082 | 714 | hcan->Instance->sTxMailBox[transmitmailbox].TIR |= ((hcan->pTxMsg->StdId << 21) | \ |
mbed_official | 573:ad23fe03a082 | 715 | hcan->pTxMsg->RTR); |
mbed_official | 573:ad23fe03a082 | 716 | } |
mbed_official | 573:ad23fe03a082 | 717 | else |
mbed_official | 573:ad23fe03a082 | 718 | { |
mbed_official | 573:ad23fe03a082 | 719 | assert_param(IS_CAN_EXTID(hcan->pTxMsg->ExtId)); |
mbed_official | 573:ad23fe03a082 | 720 | hcan->Instance->sTxMailBox[transmitmailbox].TIR |= ((hcan->pTxMsg->ExtId << 3) | \ |
mbed_official | 573:ad23fe03a082 | 721 | hcan->pTxMsg->IDE | \ |
mbed_official | 573:ad23fe03a082 | 722 | hcan->pTxMsg->RTR); |
mbed_official | 573:ad23fe03a082 | 723 | } |
mbed_official | 573:ad23fe03a082 | 724 | |
mbed_official | 573:ad23fe03a082 | 725 | /* Set up the DLC */ |
mbed_official | 573:ad23fe03a082 | 726 | hcan->pTxMsg->DLC &= (uint8_t)0x0000000F; |
mbed_official | 573:ad23fe03a082 | 727 | hcan->Instance->sTxMailBox[transmitmailbox].TDTR &= (uint32_t)0xFFFFFFF0; |
mbed_official | 573:ad23fe03a082 | 728 | hcan->Instance->sTxMailBox[transmitmailbox].TDTR |= hcan->pTxMsg->DLC; |
mbed_official | 573:ad23fe03a082 | 729 | |
mbed_official | 573:ad23fe03a082 | 730 | /* Set up the data field */ |
mbed_official | 573:ad23fe03a082 | 731 | hcan->Instance->sTxMailBox[transmitmailbox].TDLR = (((uint32_t)hcan->pTxMsg->Data[3] << 24) | |
mbed_official | 573:ad23fe03a082 | 732 | ((uint32_t)hcan->pTxMsg->Data[2] << 16) | |
mbed_official | 573:ad23fe03a082 | 733 | ((uint32_t)hcan->pTxMsg->Data[1] << 8) | |
mbed_official | 573:ad23fe03a082 | 734 | ((uint32_t)hcan->pTxMsg->Data[0])); |
mbed_official | 573:ad23fe03a082 | 735 | hcan->Instance->sTxMailBox[transmitmailbox].TDHR = (((uint32_t)hcan->pTxMsg->Data[7] << 24) | |
mbed_official | 573:ad23fe03a082 | 736 | ((uint32_t)hcan->pTxMsg->Data[6] << 16) | |
mbed_official | 573:ad23fe03a082 | 737 | ((uint32_t)hcan->pTxMsg->Data[5] << 8) | |
mbed_official | 573:ad23fe03a082 | 738 | ((uint32_t)hcan->pTxMsg->Data[4])); |
mbed_official | 573:ad23fe03a082 | 739 | |
mbed_official | 573:ad23fe03a082 | 740 | if(hcan->State == HAL_CAN_STATE_BUSY_RX) |
mbed_official | 573:ad23fe03a082 | 741 | { |
mbed_official | 573:ad23fe03a082 | 742 | /* Change CAN state */ |
mbed_official | 573:ad23fe03a082 | 743 | hcan->State = HAL_CAN_STATE_BUSY_TX_RX; |
mbed_official | 573:ad23fe03a082 | 744 | } |
mbed_official | 573:ad23fe03a082 | 745 | else |
mbed_official | 573:ad23fe03a082 | 746 | { |
mbed_official | 573:ad23fe03a082 | 747 | /* Change CAN state */ |
mbed_official | 573:ad23fe03a082 | 748 | hcan->State = HAL_CAN_STATE_BUSY_TX; |
mbed_official | 573:ad23fe03a082 | 749 | } |
mbed_official | 573:ad23fe03a082 | 750 | |
mbed_official | 573:ad23fe03a082 | 751 | /* Set CAN error code to none */ |
mbed_official | 573:ad23fe03a082 | 752 | hcan->ErrorCode = HAL_CAN_ERROR_NONE; |
mbed_official | 573:ad23fe03a082 | 753 | |
mbed_official | 573:ad23fe03a082 | 754 | /* Process Unlocked */ |
mbed_official | 573:ad23fe03a082 | 755 | __HAL_UNLOCK(hcan); |
mbed_official | 573:ad23fe03a082 | 756 | |
mbed_official | 573:ad23fe03a082 | 757 | /* Enable Error warning Interrupt */ |
mbed_official | 573:ad23fe03a082 | 758 | __HAL_CAN_ENABLE_IT(hcan, CAN_IT_EWG); |
mbed_official | 573:ad23fe03a082 | 759 | |
mbed_official | 573:ad23fe03a082 | 760 | /* Enable Error passive Interrupt */ |
mbed_official | 573:ad23fe03a082 | 761 | __HAL_CAN_ENABLE_IT(hcan, CAN_IT_EPV); |
mbed_official | 573:ad23fe03a082 | 762 | |
mbed_official | 573:ad23fe03a082 | 763 | /* Enable Bus-off Interrupt */ |
mbed_official | 573:ad23fe03a082 | 764 | __HAL_CAN_ENABLE_IT(hcan, CAN_IT_BOF); |
mbed_official | 573:ad23fe03a082 | 765 | |
mbed_official | 573:ad23fe03a082 | 766 | /* Enable Last error code Interrupt */ |
mbed_official | 573:ad23fe03a082 | 767 | __HAL_CAN_ENABLE_IT(hcan, CAN_IT_LEC); |
mbed_official | 573:ad23fe03a082 | 768 | |
mbed_official | 573:ad23fe03a082 | 769 | /* Enable Error Interrupt */ |
mbed_official | 573:ad23fe03a082 | 770 | __HAL_CAN_ENABLE_IT(hcan, CAN_IT_ERR); |
mbed_official | 573:ad23fe03a082 | 771 | |
mbed_official | 573:ad23fe03a082 | 772 | /* Enable Transmit mailbox empty Interrupt */ |
mbed_official | 573:ad23fe03a082 | 773 | __HAL_CAN_ENABLE_IT(hcan, CAN_IT_TME); |
mbed_official | 573:ad23fe03a082 | 774 | |
mbed_official | 573:ad23fe03a082 | 775 | /* Request transmission */ |
mbed_official | 573:ad23fe03a082 | 776 | hcan->Instance->sTxMailBox[transmitmailbox].TIR |= CAN_TI0R_TXRQ; |
mbed_official | 573:ad23fe03a082 | 777 | } |
mbed_official | 573:ad23fe03a082 | 778 | } |
mbed_official | 573:ad23fe03a082 | 779 | else |
mbed_official | 573:ad23fe03a082 | 780 | { |
mbed_official | 573:ad23fe03a082 | 781 | return HAL_BUSY; |
mbed_official | 573:ad23fe03a082 | 782 | } |
mbed_official | 573:ad23fe03a082 | 783 | |
mbed_official | 573:ad23fe03a082 | 784 | return HAL_OK; |
mbed_official | 573:ad23fe03a082 | 785 | } |
mbed_official | 573:ad23fe03a082 | 786 | |
mbed_official | 573:ad23fe03a082 | 787 | /** |
mbed_official | 573:ad23fe03a082 | 788 | * @brief Receives a correct CAN frame. |
mbed_official | 573:ad23fe03a082 | 789 | * @param hcan: pointer to a CAN_HandleTypeDef structure that contains |
mbed_official | 573:ad23fe03a082 | 790 | * the configuration information for the specified CAN. |
mbed_official | 573:ad23fe03a082 | 791 | * @param FIFONumber: FIFO Number value |
mbed_official | 573:ad23fe03a082 | 792 | * @param Timeout: Specify Timeout value |
mbed_official | 573:ad23fe03a082 | 793 | * @retval HAL status |
mbed_official | 573:ad23fe03a082 | 794 | */ |
mbed_official | 573:ad23fe03a082 | 795 | HAL_StatusTypeDef HAL_CAN_Receive(CAN_HandleTypeDef* hcan, uint8_t FIFONumber, uint32_t Timeout) |
mbed_official | 573:ad23fe03a082 | 796 | { |
mbed_official | 573:ad23fe03a082 | 797 | uint32_t tickstart = 0; |
mbed_official | 573:ad23fe03a082 | 798 | |
mbed_official | 573:ad23fe03a082 | 799 | /* Check the parameters */ |
mbed_official | 573:ad23fe03a082 | 800 | assert_param(IS_CAN_FIFO(FIFONumber)); |
mbed_official | 573:ad23fe03a082 | 801 | |
mbed_official | 573:ad23fe03a082 | 802 | /* Process locked */ |
mbed_official | 573:ad23fe03a082 | 803 | __HAL_LOCK(hcan); |
mbed_official | 573:ad23fe03a082 | 804 | |
mbed_official | 573:ad23fe03a082 | 805 | if(hcan->State == HAL_CAN_STATE_BUSY_TX) |
mbed_official | 573:ad23fe03a082 | 806 | { |
mbed_official | 573:ad23fe03a082 | 807 | /* Change CAN state */ |
mbed_official | 573:ad23fe03a082 | 808 | hcan->State = HAL_CAN_STATE_BUSY_TX_RX; |
mbed_official | 573:ad23fe03a082 | 809 | } |
mbed_official | 573:ad23fe03a082 | 810 | else |
mbed_official | 573:ad23fe03a082 | 811 | { |
mbed_official | 573:ad23fe03a082 | 812 | /* Change CAN state */ |
mbed_official | 573:ad23fe03a082 | 813 | hcan->State = HAL_CAN_STATE_BUSY_RX; |
mbed_official | 573:ad23fe03a082 | 814 | } |
mbed_official | 573:ad23fe03a082 | 815 | |
mbed_official | 573:ad23fe03a082 | 816 | /* Get tick */ |
mbed_official | 573:ad23fe03a082 | 817 | tickstart = HAL_GetTick(); |
mbed_official | 573:ad23fe03a082 | 818 | |
mbed_official | 573:ad23fe03a082 | 819 | /* Check pending message */ |
mbed_official | 573:ad23fe03a082 | 820 | while(__HAL_CAN_MSG_PENDING(hcan, FIFONumber) == 0) |
mbed_official | 573:ad23fe03a082 | 821 | { |
mbed_official | 573:ad23fe03a082 | 822 | /* Check for the Timeout */ |
mbed_official | 573:ad23fe03a082 | 823 | if(Timeout != HAL_MAX_DELAY) |
mbed_official | 573:ad23fe03a082 | 824 | { |
mbed_official | 573:ad23fe03a082 | 825 | if((Timeout == 0)||((HAL_GetTick() - tickstart ) > Timeout)) |
mbed_official | 573:ad23fe03a082 | 826 | { |
mbed_official | 573:ad23fe03a082 | 827 | hcan->State = HAL_CAN_STATE_TIMEOUT; |
mbed_official | 573:ad23fe03a082 | 828 | /* Process unlocked */ |
mbed_official | 573:ad23fe03a082 | 829 | __HAL_UNLOCK(hcan); |
mbed_official | 573:ad23fe03a082 | 830 | return HAL_TIMEOUT; |
mbed_official | 573:ad23fe03a082 | 831 | } |
mbed_official | 573:ad23fe03a082 | 832 | } |
mbed_official | 573:ad23fe03a082 | 833 | } |
mbed_official | 573:ad23fe03a082 | 834 | |
mbed_official | 573:ad23fe03a082 | 835 | /* Get the Id */ |
mbed_official | 573:ad23fe03a082 | 836 | hcan->pRxMsg->IDE = (uint8_t)0x04 & hcan->Instance->sFIFOMailBox[FIFONumber].RIR; |
mbed_official | 573:ad23fe03a082 | 837 | if (hcan->pRxMsg->IDE == CAN_ID_STD) |
mbed_official | 573:ad23fe03a082 | 838 | { |
mbed_official | 573:ad23fe03a082 | 839 | hcan->pRxMsg->StdId = (uint32_t)0x000007FF & (hcan->Instance->sFIFOMailBox[FIFONumber].RIR >> 21); |
mbed_official | 573:ad23fe03a082 | 840 | } |
mbed_official | 573:ad23fe03a082 | 841 | else |
mbed_official | 573:ad23fe03a082 | 842 | { |
mbed_official | 573:ad23fe03a082 | 843 | hcan->pRxMsg->ExtId = (uint32_t)0x1FFFFFFF & (hcan->Instance->sFIFOMailBox[FIFONumber].RIR >> 3); |
mbed_official | 573:ad23fe03a082 | 844 | } |
mbed_official | 573:ad23fe03a082 | 845 | |
mbed_official | 573:ad23fe03a082 | 846 | hcan->pRxMsg->RTR = (uint8_t)0x02 & hcan->Instance->sFIFOMailBox[FIFONumber].RIR; |
mbed_official | 573:ad23fe03a082 | 847 | /* Get the DLC */ |
mbed_official | 573:ad23fe03a082 | 848 | hcan->pRxMsg->DLC = (uint8_t)0x0F & hcan->Instance->sFIFOMailBox[FIFONumber].RDTR; |
mbed_official | 573:ad23fe03a082 | 849 | /* Get the FMI */ |
mbed_official | 573:ad23fe03a082 | 850 | hcan->pRxMsg->FMI = (uint8_t)0xFF & (hcan->Instance->sFIFOMailBox[FIFONumber].RDTR >> 8); |
mbed_official | 573:ad23fe03a082 | 851 | /* Get the data field */ |
mbed_official | 573:ad23fe03a082 | 852 | hcan->pRxMsg->Data[0] = (uint8_t)0xFF & hcan->Instance->sFIFOMailBox[FIFONumber].RDLR; |
mbed_official | 573:ad23fe03a082 | 853 | hcan->pRxMsg->Data[1] = (uint8_t)0xFF & (hcan->Instance->sFIFOMailBox[FIFONumber].RDLR >> 8); |
mbed_official | 573:ad23fe03a082 | 854 | hcan->pRxMsg->Data[2] = (uint8_t)0xFF & (hcan->Instance->sFIFOMailBox[FIFONumber].RDLR >> 16); |
mbed_official | 573:ad23fe03a082 | 855 | hcan->pRxMsg->Data[3] = (uint8_t)0xFF & (hcan->Instance->sFIFOMailBox[FIFONumber].RDLR >> 24); |
mbed_official | 573:ad23fe03a082 | 856 | hcan->pRxMsg->Data[4] = (uint8_t)0xFF & hcan->Instance->sFIFOMailBox[FIFONumber].RDHR; |
mbed_official | 573:ad23fe03a082 | 857 | hcan->pRxMsg->Data[5] = (uint8_t)0xFF & (hcan->Instance->sFIFOMailBox[FIFONumber].RDHR >> 8); |
mbed_official | 573:ad23fe03a082 | 858 | hcan->pRxMsg->Data[6] = (uint8_t)0xFF & (hcan->Instance->sFIFOMailBox[FIFONumber].RDHR >> 16); |
mbed_official | 573:ad23fe03a082 | 859 | hcan->pRxMsg->Data[7] = (uint8_t)0xFF & (hcan->Instance->sFIFOMailBox[FIFONumber].RDHR >> 24); |
mbed_official | 573:ad23fe03a082 | 860 | |
mbed_official | 573:ad23fe03a082 | 861 | /* Release the FIFO */ |
mbed_official | 573:ad23fe03a082 | 862 | if(FIFONumber == CAN_FIFO0) |
mbed_official | 573:ad23fe03a082 | 863 | { |
mbed_official | 573:ad23fe03a082 | 864 | /* Release FIFO0 */ |
mbed_official | 573:ad23fe03a082 | 865 | __HAL_CAN_FIFO_RELEASE(hcan, CAN_FIFO0); |
mbed_official | 573:ad23fe03a082 | 866 | } |
mbed_official | 573:ad23fe03a082 | 867 | else /* FIFONumber == CAN_FIFO1 */ |
mbed_official | 573:ad23fe03a082 | 868 | { |
mbed_official | 573:ad23fe03a082 | 869 | /* Release FIFO1 */ |
mbed_official | 573:ad23fe03a082 | 870 | __HAL_CAN_FIFO_RELEASE(hcan, CAN_FIFO1); |
mbed_official | 573:ad23fe03a082 | 871 | } |
mbed_official | 573:ad23fe03a082 | 872 | |
mbed_official | 573:ad23fe03a082 | 873 | if(hcan->State == HAL_CAN_STATE_BUSY_TX_RX) |
mbed_official | 573:ad23fe03a082 | 874 | { |
mbed_official | 573:ad23fe03a082 | 875 | /* Change CAN state */ |
mbed_official | 573:ad23fe03a082 | 876 | hcan->State = HAL_CAN_STATE_BUSY_TX; |
mbed_official | 573:ad23fe03a082 | 877 | |
mbed_official | 573:ad23fe03a082 | 878 | /* Process unlocked */ |
mbed_official | 573:ad23fe03a082 | 879 | __HAL_UNLOCK(hcan); |
mbed_official | 573:ad23fe03a082 | 880 | } |
mbed_official | 573:ad23fe03a082 | 881 | else |
mbed_official | 573:ad23fe03a082 | 882 | { |
mbed_official | 573:ad23fe03a082 | 883 | /* Change CAN state */ |
mbed_official | 573:ad23fe03a082 | 884 | hcan->State = HAL_CAN_STATE_READY; |
mbed_official | 573:ad23fe03a082 | 885 | |
mbed_official | 573:ad23fe03a082 | 886 | /* Process unlocked */ |
mbed_official | 573:ad23fe03a082 | 887 | __HAL_UNLOCK(hcan); |
mbed_official | 573:ad23fe03a082 | 888 | } |
mbed_official | 573:ad23fe03a082 | 889 | |
mbed_official | 573:ad23fe03a082 | 890 | /* Return function status */ |
mbed_official | 573:ad23fe03a082 | 891 | return HAL_OK; |
mbed_official | 573:ad23fe03a082 | 892 | } |
mbed_official | 573:ad23fe03a082 | 893 | |
mbed_official | 573:ad23fe03a082 | 894 | /** |
mbed_official | 573:ad23fe03a082 | 895 | * @brief Receives a correct CAN frame. |
mbed_official | 573:ad23fe03a082 | 896 | * @param hcan: Pointer to a CAN_HandleTypeDef structure that contains |
mbed_official | 573:ad23fe03a082 | 897 | * the configuration information for the specified CAN. |
mbed_official | 573:ad23fe03a082 | 898 | * @param FIFONumber: Specify the FIFO number |
mbed_official | 573:ad23fe03a082 | 899 | * @retval HAL status |
mbed_official | 573:ad23fe03a082 | 900 | */ |
mbed_official | 573:ad23fe03a082 | 901 | HAL_StatusTypeDef HAL_CAN_Receive_IT(CAN_HandleTypeDef* hcan, uint8_t FIFONumber) |
mbed_official | 573:ad23fe03a082 | 902 | { |
mbed_official | 573:ad23fe03a082 | 903 | uint32_t tmp = 0; |
mbed_official | 573:ad23fe03a082 | 904 | |
mbed_official | 573:ad23fe03a082 | 905 | /* Check the parameters */ |
mbed_official | 573:ad23fe03a082 | 906 | assert_param(IS_CAN_FIFO(FIFONumber)); |
mbed_official | 573:ad23fe03a082 | 907 | |
mbed_official | 573:ad23fe03a082 | 908 | tmp = hcan->State; |
mbed_official | 573:ad23fe03a082 | 909 | if((tmp == HAL_CAN_STATE_READY) || (tmp == HAL_CAN_STATE_BUSY_TX)) |
mbed_official | 573:ad23fe03a082 | 910 | { |
mbed_official | 573:ad23fe03a082 | 911 | /* Process locked */ |
mbed_official | 573:ad23fe03a082 | 912 | __HAL_LOCK(hcan); |
mbed_official | 573:ad23fe03a082 | 913 | |
mbed_official | 573:ad23fe03a082 | 914 | if(hcan->State == HAL_CAN_STATE_BUSY_TX) |
mbed_official | 573:ad23fe03a082 | 915 | { |
mbed_official | 573:ad23fe03a082 | 916 | /* Change CAN state */ |
mbed_official | 573:ad23fe03a082 | 917 | hcan->State = HAL_CAN_STATE_BUSY_TX_RX; |
mbed_official | 573:ad23fe03a082 | 918 | } |
mbed_official | 573:ad23fe03a082 | 919 | else |
mbed_official | 573:ad23fe03a082 | 920 | { |
mbed_official | 573:ad23fe03a082 | 921 | /* Change CAN state */ |
mbed_official | 573:ad23fe03a082 | 922 | hcan->State = HAL_CAN_STATE_BUSY_RX; |
mbed_official | 573:ad23fe03a082 | 923 | } |
mbed_official | 573:ad23fe03a082 | 924 | |
mbed_official | 573:ad23fe03a082 | 925 | /* Set CAN error code to none */ |
mbed_official | 573:ad23fe03a082 | 926 | hcan->ErrorCode = HAL_CAN_ERROR_NONE; |
mbed_official | 573:ad23fe03a082 | 927 | |
mbed_official | 573:ad23fe03a082 | 928 | /* Enable Error warning Interrupt */ |
mbed_official | 573:ad23fe03a082 | 929 | __HAL_CAN_ENABLE_IT(hcan, CAN_IT_EWG); |
mbed_official | 573:ad23fe03a082 | 930 | |
mbed_official | 573:ad23fe03a082 | 931 | /* Enable Error passive Interrupt */ |
mbed_official | 573:ad23fe03a082 | 932 | __HAL_CAN_ENABLE_IT(hcan, CAN_IT_EPV); |
mbed_official | 573:ad23fe03a082 | 933 | |
mbed_official | 573:ad23fe03a082 | 934 | /* Enable Bus-off Interrupt */ |
mbed_official | 573:ad23fe03a082 | 935 | __HAL_CAN_ENABLE_IT(hcan, CAN_IT_BOF); |
mbed_official | 573:ad23fe03a082 | 936 | |
mbed_official | 573:ad23fe03a082 | 937 | /* Enable Last error code Interrupt */ |
mbed_official | 573:ad23fe03a082 | 938 | __HAL_CAN_ENABLE_IT(hcan, CAN_IT_LEC); |
mbed_official | 573:ad23fe03a082 | 939 | |
mbed_official | 573:ad23fe03a082 | 940 | /* Enable Error Interrupt */ |
mbed_official | 573:ad23fe03a082 | 941 | __HAL_CAN_ENABLE_IT(hcan, CAN_IT_ERR); |
mbed_official | 573:ad23fe03a082 | 942 | |
mbed_official | 573:ad23fe03a082 | 943 | /* Process unlocked */ |
mbed_official | 573:ad23fe03a082 | 944 | __HAL_UNLOCK(hcan); |
mbed_official | 573:ad23fe03a082 | 945 | |
mbed_official | 573:ad23fe03a082 | 946 | if(FIFONumber == CAN_FIFO0) |
mbed_official | 573:ad23fe03a082 | 947 | { |
mbed_official | 573:ad23fe03a082 | 948 | /* Enable FIFO 0 message pending Interrupt */ |
mbed_official | 573:ad23fe03a082 | 949 | __HAL_CAN_ENABLE_IT(hcan, CAN_IT_FMP0); |
mbed_official | 573:ad23fe03a082 | 950 | } |
mbed_official | 573:ad23fe03a082 | 951 | else |
mbed_official | 573:ad23fe03a082 | 952 | { |
mbed_official | 573:ad23fe03a082 | 953 | /* Enable FIFO 1 message pending Interrupt */ |
mbed_official | 573:ad23fe03a082 | 954 | __HAL_CAN_ENABLE_IT(hcan, CAN_IT_FMP1); |
mbed_official | 573:ad23fe03a082 | 955 | } |
mbed_official | 573:ad23fe03a082 | 956 | |
mbed_official | 573:ad23fe03a082 | 957 | } |
mbed_official | 573:ad23fe03a082 | 958 | else |
mbed_official | 573:ad23fe03a082 | 959 | { |
mbed_official | 573:ad23fe03a082 | 960 | return HAL_BUSY; |
mbed_official | 573:ad23fe03a082 | 961 | } |
mbed_official | 573:ad23fe03a082 | 962 | |
mbed_official | 573:ad23fe03a082 | 963 | /* Return function status */ |
mbed_official | 573:ad23fe03a082 | 964 | return HAL_OK; |
mbed_official | 573:ad23fe03a082 | 965 | } |
mbed_official | 573:ad23fe03a082 | 966 | |
mbed_official | 573:ad23fe03a082 | 967 | /** |
mbed_official | 573:ad23fe03a082 | 968 | * @brief Enters the Sleep (low power) mode. |
mbed_official | 573:ad23fe03a082 | 969 | * @param hcan: pointer to a CAN_HandleTypeDef structure that contains |
mbed_official | 573:ad23fe03a082 | 970 | * the configuration information for the specified CAN. |
mbed_official | 573:ad23fe03a082 | 971 | * @retval HAL status. |
mbed_official | 573:ad23fe03a082 | 972 | */ |
mbed_official | 573:ad23fe03a082 | 973 | HAL_StatusTypeDef HAL_CAN_Sleep(CAN_HandleTypeDef* hcan) |
mbed_official | 573:ad23fe03a082 | 974 | { |
mbed_official | 573:ad23fe03a082 | 975 | uint32_t tickstart = 0; |
mbed_official | 573:ad23fe03a082 | 976 | |
mbed_official | 573:ad23fe03a082 | 977 | /* Process locked */ |
mbed_official | 573:ad23fe03a082 | 978 | __HAL_LOCK(hcan); |
mbed_official | 573:ad23fe03a082 | 979 | |
mbed_official | 573:ad23fe03a082 | 980 | /* Change CAN state */ |
mbed_official | 573:ad23fe03a082 | 981 | hcan->State = HAL_CAN_STATE_BUSY; |
mbed_official | 573:ad23fe03a082 | 982 | |
mbed_official | 573:ad23fe03a082 | 983 | /* Request Sleep mode */ |
mbed_official | 573:ad23fe03a082 | 984 | hcan->Instance->MCR = (((hcan->Instance->MCR) & (uint32_t)(~(uint32_t)CAN_MCR_INRQ)) | CAN_MCR_SLEEP); |
mbed_official | 573:ad23fe03a082 | 985 | |
mbed_official | 573:ad23fe03a082 | 986 | /* Sleep mode status */ |
mbed_official | 573:ad23fe03a082 | 987 | if ((hcan->Instance->MSR & (CAN_MSR_SLAK|CAN_MSR_INAK)) != CAN_MSR_SLAK) |
mbed_official | 573:ad23fe03a082 | 988 | { |
mbed_official | 573:ad23fe03a082 | 989 | /* Process unlocked */ |
mbed_official | 573:ad23fe03a082 | 990 | __HAL_UNLOCK(hcan); |
mbed_official | 573:ad23fe03a082 | 991 | |
mbed_official | 573:ad23fe03a082 | 992 | /* Return function status */ |
mbed_official | 573:ad23fe03a082 | 993 | return HAL_ERROR; |
mbed_official | 573:ad23fe03a082 | 994 | } |
mbed_official | 573:ad23fe03a082 | 995 | |
mbed_official | 573:ad23fe03a082 | 996 | /* Get tick */ |
mbed_official | 573:ad23fe03a082 | 997 | tickstart = HAL_GetTick(); |
mbed_official | 573:ad23fe03a082 | 998 | |
mbed_official | 573:ad23fe03a082 | 999 | /* Wait the acknowledge */ |
mbed_official | 573:ad23fe03a082 | 1000 | while((hcan->Instance->MSR & (CAN_MSR_SLAK|CAN_MSR_INAK)) != CAN_MSR_SLAK) |
mbed_official | 573:ad23fe03a082 | 1001 | { |
mbed_official | 573:ad23fe03a082 | 1002 | if((HAL_GetTick() - tickstart) > CAN_TIMEOUT_VALUE) |
mbed_official | 573:ad23fe03a082 | 1003 | { |
mbed_official | 573:ad23fe03a082 | 1004 | hcan->State = HAL_CAN_STATE_TIMEOUT; |
mbed_official | 573:ad23fe03a082 | 1005 | /* Process unlocked */ |
mbed_official | 573:ad23fe03a082 | 1006 | __HAL_UNLOCK(hcan); |
mbed_official | 573:ad23fe03a082 | 1007 | return HAL_TIMEOUT; |
mbed_official | 573:ad23fe03a082 | 1008 | } |
mbed_official | 573:ad23fe03a082 | 1009 | } |
mbed_official | 573:ad23fe03a082 | 1010 | |
mbed_official | 573:ad23fe03a082 | 1011 | /* Change CAN state */ |
mbed_official | 573:ad23fe03a082 | 1012 | hcan->State = HAL_CAN_STATE_READY; |
mbed_official | 573:ad23fe03a082 | 1013 | |
mbed_official | 573:ad23fe03a082 | 1014 | /* Process unlocked */ |
mbed_official | 573:ad23fe03a082 | 1015 | __HAL_UNLOCK(hcan); |
mbed_official | 573:ad23fe03a082 | 1016 | |
mbed_official | 573:ad23fe03a082 | 1017 | /* Return function status */ |
mbed_official | 573:ad23fe03a082 | 1018 | return HAL_OK; |
mbed_official | 573:ad23fe03a082 | 1019 | } |
mbed_official | 573:ad23fe03a082 | 1020 | |
mbed_official | 573:ad23fe03a082 | 1021 | /** |
mbed_official | 573:ad23fe03a082 | 1022 | * @brief Wakes up the CAN peripheral from sleep mode, after that the CAN peripheral |
mbed_official | 573:ad23fe03a082 | 1023 | * is in the normal mode. |
mbed_official | 573:ad23fe03a082 | 1024 | * @param hcan: pointer to a CAN_HandleTypeDef structure that contains |
mbed_official | 573:ad23fe03a082 | 1025 | * the configuration information for the specified CAN. |
mbed_official | 573:ad23fe03a082 | 1026 | * @retval HAL status. |
mbed_official | 573:ad23fe03a082 | 1027 | */ |
mbed_official | 573:ad23fe03a082 | 1028 | HAL_StatusTypeDef HAL_CAN_WakeUp(CAN_HandleTypeDef* hcan) |
mbed_official | 573:ad23fe03a082 | 1029 | { |
mbed_official | 573:ad23fe03a082 | 1030 | uint32_t tickstart = 0; |
mbed_official | 573:ad23fe03a082 | 1031 | |
mbed_official | 573:ad23fe03a082 | 1032 | /* Process locked */ |
mbed_official | 573:ad23fe03a082 | 1033 | __HAL_LOCK(hcan); |
mbed_official | 573:ad23fe03a082 | 1034 | |
mbed_official | 573:ad23fe03a082 | 1035 | /* Change CAN state */ |
mbed_official | 573:ad23fe03a082 | 1036 | hcan->State = HAL_CAN_STATE_BUSY; |
mbed_official | 573:ad23fe03a082 | 1037 | |
mbed_official | 573:ad23fe03a082 | 1038 | /* Wake up request */ |
mbed_official | 573:ad23fe03a082 | 1039 | hcan->Instance->MCR &= ~(uint32_t)CAN_MCR_SLEEP; |
mbed_official | 573:ad23fe03a082 | 1040 | |
mbed_official | 573:ad23fe03a082 | 1041 | /* Get tick */ |
mbed_official | 573:ad23fe03a082 | 1042 | tickstart = HAL_GetTick(); |
mbed_official | 573:ad23fe03a082 | 1043 | |
mbed_official | 573:ad23fe03a082 | 1044 | /* Sleep mode status */ |
mbed_official | 573:ad23fe03a082 | 1045 | while((hcan->Instance->MSR & CAN_MSR_SLAK) == CAN_MSR_SLAK) |
mbed_official | 573:ad23fe03a082 | 1046 | { |
mbed_official | 573:ad23fe03a082 | 1047 | if((HAL_GetTick() - tickstart) > CAN_TIMEOUT_VALUE) |
mbed_official | 573:ad23fe03a082 | 1048 | { |
mbed_official | 573:ad23fe03a082 | 1049 | hcan->State= HAL_CAN_STATE_TIMEOUT; |
mbed_official | 573:ad23fe03a082 | 1050 | /* Process unlocked */ |
mbed_official | 573:ad23fe03a082 | 1051 | __HAL_UNLOCK(hcan); |
mbed_official | 573:ad23fe03a082 | 1052 | return HAL_TIMEOUT; |
mbed_official | 573:ad23fe03a082 | 1053 | } |
mbed_official | 573:ad23fe03a082 | 1054 | } |
mbed_official | 573:ad23fe03a082 | 1055 | if((hcan->Instance->MSR & CAN_MSR_SLAK) == CAN_MSR_SLAK) |
mbed_official | 573:ad23fe03a082 | 1056 | { |
mbed_official | 573:ad23fe03a082 | 1057 | /* Process unlocked */ |
mbed_official | 573:ad23fe03a082 | 1058 | __HAL_UNLOCK(hcan); |
mbed_official | 573:ad23fe03a082 | 1059 | |
mbed_official | 573:ad23fe03a082 | 1060 | /* Return function status */ |
mbed_official | 573:ad23fe03a082 | 1061 | return HAL_ERROR; |
mbed_official | 573:ad23fe03a082 | 1062 | } |
mbed_official | 573:ad23fe03a082 | 1063 | |
mbed_official | 573:ad23fe03a082 | 1064 | /* Change CAN state */ |
mbed_official | 573:ad23fe03a082 | 1065 | hcan->State = HAL_CAN_STATE_READY; |
mbed_official | 573:ad23fe03a082 | 1066 | |
mbed_official | 573:ad23fe03a082 | 1067 | /* Process unlocked */ |
mbed_official | 573:ad23fe03a082 | 1068 | __HAL_UNLOCK(hcan); |
mbed_official | 573:ad23fe03a082 | 1069 | |
mbed_official | 573:ad23fe03a082 | 1070 | /* Return function status */ |
mbed_official | 573:ad23fe03a082 | 1071 | return HAL_OK; |
mbed_official | 573:ad23fe03a082 | 1072 | } |
mbed_official | 573:ad23fe03a082 | 1073 | |
mbed_official | 573:ad23fe03a082 | 1074 | /** |
mbed_official | 573:ad23fe03a082 | 1075 | * @brief Handles CAN interrupt request |
mbed_official | 573:ad23fe03a082 | 1076 | * @param hcan: pointer to a CAN_HandleTypeDef structure that contains |
mbed_official | 573:ad23fe03a082 | 1077 | * the configuration information for the specified CAN. |
mbed_official | 573:ad23fe03a082 | 1078 | * @retval None |
mbed_official | 573:ad23fe03a082 | 1079 | */ |
mbed_official | 573:ad23fe03a082 | 1080 | void HAL_CAN_IRQHandler(CAN_HandleTypeDef* hcan) |
mbed_official | 573:ad23fe03a082 | 1081 | { |
mbed_official | 573:ad23fe03a082 | 1082 | uint32_t tmp1 = 0, tmp2 = 0, tmp3 = 0; |
mbed_official | 573:ad23fe03a082 | 1083 | |
mbed_official | 573:ad23fe03a082 | 1084 | /* Check End of transmission flag */ |
mbed_official | 573:ad23fe03a082 | 1085 | if(__HAL_CAN_GET_IT_SOURCE(hcan, CAN_IT_TME)) |
mbed_official | 573:ad23fe03a082 | 1086 | { |
mbed_official | 573:ad23fe03a082 | 1087 | tmp1 = __HAL_CAN_TRANSMIT_STATUS(hcan, CAN_TXMAILBOX_0); |
mbed_official | 573:ad23fe03a082 | 1088 | tmp2 = __HAL_CAN_TRANSMIT_STATUS(hcan, CAN_TXMAILBOX_1); |
mbed_official | 573:ad23fe03a082 | 1089 | tmp3 = __HAL_CAN_TRANSMIT_STATUS(hcan, CAN_TXMAILBOX_2); |
mbed_official | 573:ad23fe03a082 | 1090 | if(tmp1 || tmp2 || tmp3) |
mbed_official | 573:ad23fe03a082 | 1091 | { |
mbed_official | 573:ad23fe03a082 | 1092 | /* Call transmit function */ |
mbed_official | 573:ad23fe03a082 | 1093 | CAN_Transmit_IT(hcan); |
mbed_official | 573:ad23fe03a082 | 1094 | } |
mbed_official | 573:ad23fe03a082 | 1095 | } |
mbed_official | 573:ad23fe03a082 | 1096 | |
mbed_official | 573:ad23fe03a082 | 1097 | tmp1 = __HAL_CAN_MSG_PENDING(hcan, CAN_FIFO0); |
mbed_official | 573:ad23fe03a082 | 1098 | tmp2 = __HAL_CAN_GET_IT_SOURCE(hcan, CAN_IT_FMP0); |
mbed_official | 573:ad23fe03a082 | 1099 | /* Check End of reception flag for FIFO0 */ |
mbed_official | 573:ad23fe03a082 | 1100 | if((tmp1 != 0) && tmp2) |
mbed_official | 573:ad23fe03a082 | 1101 | { |
mbed_official | 573:ad23fe03a082 | 1102 | /* Call receive function */ |
mbed_official | 573:ad23fe03a082 | 1103 | CAN_Receive_IT(hcan, CAN_FIFO0); |
mbed_official | 573:ad23fe03a082 | 1104 | } |
mbed_official | 573:ad23fe03a082 | 1105 | |
mbed_official | 573:ad23fe03a082 | 1106 | tmp1 = __HAL_CAN_MSG_PENDING(hcan, CAN_FIFO1); |
mbed_official | 573:ad23fe03a082 | 1107 | tmp2 = __HAL_CAN_GET_IT_SOURCE(hcan, CAN_IT_FMP1); |
mbed_official | 573:ad23fe03a082 | 1108 | /* Check End of reception flag for FIFO1 */ |
mbed_official | 573:ad23fe03a082 | 1109 | if((tmp1 != 0) && tmp2) |
mbed_official | 573:ad23fe03a082 | 1110 | { |
mbed_official | 573:ad23fe03a082 | 1111 | /* Call receive function */ |
mbed_official | 573:ad23fe03a082 | 1112 | CAN_Receive_IT(hcan, CAN_FIFO1); |
mbed_official | 573:ad23fe03a082 | 1113 | } |
mbed_official | 573:ad23fe03a082 | 1114 | |
mbed_official | 573:ad23fe03a082 | 1115 | tmp1 = __HAL_CAN_GET_FLAG(hcan, CAN_FLAG_EWG); |
mbed_official | 573:ad23fe03a082 | 1116 | tmp2 = __HAL_CAN_GET_IT_SOURCE(hcan, CAN_IT_EWG); |
mbed_official | 573:ad23fe03a082 | 1117 | tmp3 = __HAL_CAN_GET_IT_SOURCE(hcan, CAN_IT_ERR); |
mbed_official | 573:ad23fe03a082 | 1118 | /* Check Error Warning Flag */ |
mbed_official | 573:ad23fe03a082 | 1119 | if(tmp1 && tmp2 && tmp3) |
mbed_official | 573:ad23fe03a082 | 1120 | { |
mbed_official | 573:ad23fe03a082 | 1121 | /* Set CAN error code to EWG error */ |
mbed_official | 573:ad23fe03a082 | 1122 | hcan->ErrorCode |= HAL_CAN_ERROR_EWG; |
mbed_official | 573:ad23fe03a082 | 1123 | /* Clear Error Warning Flag */ |
mbed_official | 573:ad23fe03a082 | 1124 | __HAL_CAN_CLEAR_FLAG(hcan, CAN_FLAG_EWG); |
mbed_official | 573:ad23fe03a082 | 1125 | } |
mbed_official | 573:ad23fe03a082 | 1126 | |
mbed_official | 573:ad23fe03a082 | 1127 | tmp1 = __HAL_CAN_GET_FLAG(hcan, CAN_FLAG_EPV); |
mbed_official | 573:ad23fe03a082 | 1128 | tmp2 = __HAL_CAN_GET_IT_SOURCE(hcan, CAN_IT_EPV); |
mbed_official | 573:ad23fe03a082 | 1129 | tmp3 = __HAL_CAN_GET_IT_SOURCE(hcan, CAN_IT_ERR); |
mbed_official | 573:ad23fe03a082 | 1130 | /* Check Error Passive Flag */ |
mbed_official | 573:ad23fe03a082 | 1131 | if(tmp1 && tmp2 && tmp3) |
mbed_official | 573:ad23fe03a082 | 1132 | { |
mbed_official | 573:ad23fe03a082 | 1133 | /* Set CAN error code to EPV error */ |
mbed_official | 573:ad23fe03a082 | 1134 | hcan->ErrorCode |= HAL_CAN_ERROR_EPV; |
mbed_official | 573:ad23fe03a082 | 1135 | /* Clear Error Passive Flag */ |
mbed_official | 573:ad23fe03a082 | 1136 | __HAL_CAN_CLEAR_FLAG(hcan, CAN_FLAG_EPV); |
mbed_official | 573:ad23fe03a082 | 1137 | } |
mbed_official | 573:ad23fe03a082 | 1138 | |
mbed_official | 573:ad23fe03a082 | 1139 | tmp1 = __HAL_CAN_GET_FLAG(hcan, CAN_FLAG_BOF); |
mbed_official | 573:ad23fe03a082 | 1140 | tmp2 = __HAL_CAN_GET_IT_SOURCE(hcan, CAN_IT_BOF); |
mbed_official | 573:ad23fe03a082 | 1141 | tmp3 = __HAL_CAN_GET_IT_SOURCE(hcan, CAN_IT_ERR); |
mbed_official | 573:ad23fe03a082 | 1142 | /* Check Bus-Off Flag */ |
mbed_official | 573:ad23fe03a082 | 1143 | if(tmp1 && tmp2 && tmp3) |
mbed_official | 573:ad23fe03a082 | 1144 | { |
mbed_official | 573:ad23fe03a082 | 1145 | /* Set CAN error code to BOF error */ |
mbed_official | 573:ad23fe03a082 | 1146 | hcan->ErrorCode |= HAL_CAN_ERROR_BOF; |
mbed_official | 573:ad23fe03a082 | 1147 | /* Clear Bus-Off Flag */ |
mbed_official | 573:ad23fe03a082 | 1148 | __HAL_CAN_CLEAR_FLAG(hcan, CAN_FLAG_BOF); |
mbed_official | 573:ad23fe03a082 | 1149 | } |
mbed_official | 573:ad23fe03a082 | 1150 | |
mbed_official | 573:ad23fe03a082 | 1151 | tmp1 = HAL_IS_BIT_CLR(hcan->Instance->ESR, CAN_ESR_LEC); |
mbed_official | 573:ad23fe03a082 | 1152 | tmp2 = __HAL_CAN_GET_IT_SOURCE(hcan, CAN_IT_LEC); |
mbed_official | 573:ad23fe03a082 | 1153 | tmp3 = __HAL_CAN_GET_IT_SOURCE(hcan, CAN_IT_ERR); |
mbed_official | 573:ad23fe03a082 | 1154 | /* Check Last error code Flag */ |
mbed_official | 573:ad23fe03a082 | 1155 | if((!tmp1) && tmp2 && tmp3) |
mbed_official | 573:ad23fe03a082 | 1156 | { |
mbed_official | 573:ad23fe03a082 | 1157 | tmp1 = (hcan->Instance->ESR) & CAN_ESR_LEC; |
mbed_official | 573:ad23fe03a082 | 1158 | switch(tmp1) |
mbed_official | 573:ad23fe03a082 | 1159 | { |
mbed_official | 573:ad23fe03a082 | 1160 | case(CAN_ESR_LEC_0): |
mbed_official | 573:ad23fe03a082 | 1161 | /* Set CAN error code to STF error */ |
mbed_official | 573:ad23fe03a082 | 1162 | hcan->ErrorCode |= HAL_CAN_ERROR_STF; |
mbed_official | 573:ad23fe03a082 | 1163 | break; |
mbed_official | 573:ad23fe03a082 | 1164 | case(CAN_ESR_LEC_1): |
mbed_official | 573:ad23fe03a082 | 1165 | /* Set CAN error code to FOR error */ |
mbed_official | 573:ad23fe03a082 | 1166 | hcan->ErrorCode |= HAL_CAN_ERROR_FOR; |
mbed_official | 573:ad23fe03a082 | 1167 | break; |
mbed_official | 573:ad23fe03a082 | 1168 | case(CAN_ESR_LEC_1 | CAN_ESR_LEC_0): |
mbed_official | 573:ad23fe03a082 | 1169 | /* Set CAN error code to ACK error */ |
mbed_official | 573:ad23fe03a082 | 1170 | hcan->ErrorCode |= HAL_CAN_ERROR_ACK; |
mbed_official | 573:ad23fe03a082 | 1171 | break; |
mbed_official | 573:ad23fe03a082 | 1172 | case(CAN_ESR_LEC_2): |
mbed_official | 573:ad23fe03a082 | 1173 | /* Set CAN error code to BR error */ |
mbed_official | 573:ad23fe03a082 | 1174 | hcan->ErrorCode |= HAL_CAN_ERROR_BR; |
mbed_official | 573:ad23fe03a082 | 1175 | break; |
mbed_official | 573:ad23fe03a082 | 1176 | case(CAN_ESR_LEC_2 | CAN_ESR_LEC_0): |
mbed_official | 573:ad23fe03a082 | 1177 | /* Set CAN error code to BD error */ |
mbed_official | 573:ad23fe03a082 | 1178 | hcan->ErrorCode |= HAL_CAN_ERROR_BD; |
mbed_official | 573:ad23fe03a082 | 1179 | break; |
mbed_official | 573:ad23fe03a082 | 1180 | case(CAN_ESR_LEC_2 | CAN_ESR_LEC_1): |
mbed_official | 573:ad23fe03a082 | 1181 | /* Set CAN error code to CRC error */ |
mbed_official | 573:ad23fe03a082 | 1182 | hcan->ErrorCode |= HAL_CAN_ERROR_CRC; |
mbed_official | 573:ad23fe03a082 | 1183 | break; |
mbed_official | 573:ad23fe03a082 | 1184 | default: |
mbed_official | 573:ad23fe03a082 | 1185 | break; |
mbed_official | 573:ad23fe03a082 | 1186 | } |
mbed_official | 573:ad23fe03a082 | 1187 | |
mbed_official | 573:ad23fe03a082 | 1188 | /* Clear Last error code Flag */ |
mbed_official | 573:ad23fe03a082 | 1189 | hcan->Instance->ESR &= ~(CAN_ESR_LEC); |
mbed_official | 573:ad23fe03a082 | 1190 | } |
mbed_official | 573:ad23fe03a082 | 1191 | |
mbed_official | 573:ad23fe03a082 | 1192 | /* Call the Error call Back in case of Errors */ |
mbed_official | 573:ad23fe03a082 | 1193 | if(hcan->ErrorCode != HAL_CAN_ERROR_NONE) |
mbed_official | 573:ad23fe03a082 | 1194 | { |
mbed_official | 573:ad23fe03a082 | 1195 | /* Set the CAN state ready to be able to start again the process */ |
mbed_official | 573:ad23fe03a082 | 1196 | hcan->State = HAL_CAN_STATE_READY; |
mbed_official | 573:ad23fe03a082 | 1197 | /* Call Error callback function */ |
mbed_official | 573:ad23fe03a082 | 1198 | HAL_CAN_ErrorCallback(hcan); |
mbed_official | 573:ad23fe03a082 | 1199 | } |
mbed_official | 573:ad23fe03a082 | 1200 | } |
mbed_official | 573:ad23fe03a082 | 1201 | |
mbed_official | 573:ad23fe03a082 | 1202 | /** |
mbed_official | 573:ad23fe03a082 | 1203 | * @brief Transmission complete callback in non blocking mode |
mbed_official | 573:ad23fe03a082 | 1204 | * @param hcan: pointer to a CAN_HandleTypeDef structure that contains |
mbed_official | 573:ad23fe03a082 | 1205 | * the configuration information for the specified CAN. |
mbed_official | 573:ad23fe03a082 | 1206 | * @retval None |
mbed_official | 573:ad23fe03a082 | 1207 | */ |
mbed_official | 573:ad23fe03a082 | 1208 | __weak void HAL_CAN_TxCpltCallback(CAN_HandleTypeDef* hcan) |
mbed_official | 573:ad23fe03a082 | 1209 | { |
mbed_official | 573:ad23fe03a082 | 1210 | /* NOTE : This function Should not be modified, when the callback is needed, |
mbed_official | 573:ad23fe03a082 | 1211 | the HAL_CAN_TxCpltCallback could be implemented in the user file |
mbed_official | 573:ad23fe03a082 | 1212 | */ |
mbed_official | 573:ad23fe03a082 | 1213 | } |
mbed_official | 573:ad23fe03a082 | 1214 | |
mbed_official | 573:ad23fe03a082 | 1215 | /** |
mbed_official | 573:ad23fe03a082 | 1216 | * @brief Transmission complete callback in non blocking mode |
mbed_official | 573:ad23fe03a082 | 1217 | * @param hcan: pointer to a CAN_HandleTypeDef structure that contains |
mbed_official | 573:ad23fe03a082 | 1218 | * the configuration information for the specified CAN. |
mbed_official | 573:ad23fe03a082 | 1219 | * @retval None |
mbed_official | 573:ad23fe03a082 | 1220 | */ |
mbed_official | 573:ad23fe03a082 | 1221 | __weak void HAL_CAN_RxCpltCallback(CAN_HandleTypeDef* hcan) |
mbed_official | 573:ad23fe03a082 | 1222 | { |
mbed_official | 573:ad23fe03a082 | 1223 | /* NOTE : This function Should not be modified, when the callback is needed, |
mbed_official | 573:ad23fe03a082 | 1224 | the HAL_CAN_RxCpltCallback could be implemented in the user file |
mbed_official | 573:ad23fe03a082 | 1225 | */ |
mbed_official | 573:ad23fe03a082 | 1226 | } |
mbed_official | 573:ad23fe03a082 | 1227 | |
mbed_official | 573:ad23fe03a082 | 1228 | /** |
mbed_official | 573:ad23fe03a082 | 1229 | * @brief Error CAN callback. |
mbed_official | 573:ad23fe03a082 | 1230 | * @param hcan: pointer to a CAN_HandleTypeDef structure that contains |
mbed_official | 573:ad23fe03a082 | 1231 | * the configuration information for the specified CAN. |
mbed_official | 573:ad23fe03a082 | 1232 | * @retval None |
mbed_official | 573:ad23fe03a082 | 1233 | */ |
mbed_official | 573:ad23fe03a082 | 1234 | __weak void HAL_CAN_ErrorCallback(CAN_HandleTypeDef *hcan) |
mbed_official | 573:ad23fe03a082 | 1235 | { |
mbed_official | 573:ad23fe03a082 | 1236 | /* NOTE : This function Should not be modified, when the callback is needed, |
mbed_official | 573:ad23fe03a082 | 1237 | the HAL_CAN_ErrorCallback could be implemented in the user file |
mbed_official | 573:ad23fe03a082 | 1238 | */ |
mbed_official | 573:ad23fe03a082 | 1239 | } |
mbed_official | 573:ad23fe03a082 | 1240 | |
mbed_official | 573:ad23fe03a082 | 1241 | /** |
mbed_official | 573:ad23fe03a082 | 1242 | * @} |
mbed_official | 573:ad23fe03a082 | 1243 | */ |
mbed_official | 573:ad23fe03a082 | 1244 | |
mbed_official | 573:ad23fe03a082 | 1245 | /** @defgroup CAN_Exported_Functions_Group3 Peripheral State and Error functions |
mbed_official | 573:ad23fe03a082 | 1246 | * @brief CAN Peripheral State functions |
mbed_official | 573:ad23fe03a082 | 1247 | * |
mbed_official | 573:ad23fe03a082 | 1248 | @verbatim |
mbed_official | 573:ad23fe03a082 | 1249 | ============================================================================== |
mbed_official | 573:ad23fe03a082 | 1250 | ##### Peripheral State and Error functions ##### |
mbed_official | 573:ad23fe03a082 | 1251 | ============================================================================== |
mbed_official | 573:ad23fe03a082 | 1252 | [..] |
mbed_official | 573:ad23fe03a082 | 1253 | This subsection provides functions allowing to : |
mbed_official | 573:ad23fe03a082 | 1254 | (+) Check the CAN state. |
mbed_official | 573:ad23fe03a082 | 1255 | (+) Check CAN Errors detected during interrupt process |
mbed_official | 573:ad23fe03a082 | 1256 | |
mbed_official | 573:ad23fe03a082 | 1257 | @endverbatim |
mbed_official | 573:ad23fe03a082 | 1258 | * @{ |
mbed_official | 573:ad23fe03a082 | 1259 | */ |
mbed_official | 573:ad23fe03a082 | 1260 | |
mbed_official | 573:ad23fe03a082 | 1261 | /** |
mbed_official | 573:ad23fe03a082 | 1262 | * @brief return the CAN state |
mbed_official | 573:ad23fe03a082 | 1263 | * @param hcan: pointer to a CAN_HandleTypeDef structure that contains |
mbed_official | 573:ad23fe03a082 | 1264 | * the configuration information for the specified CAN. |
mbed_official | 573:ad23fe03a082 | 1265 | * @retval HAL state |
mbed_official | 573:ad23fe03a082 | 1266 | */ |
mbed_official | 573:ad23fe03a082 | 1267 | HAL_CAN_StateTypeDef HAL_CAN_GetState(CAN_HandleTypeDef* hcan) |
mbed_official | 573:ad23fe03a082 | 1268 | { |
mbed_official | 573:ad23fe03a082 | 1269 | /* Return CAN state */ |
mbed_official | 573:ad23fe03a082 | 1270 | return hcan->State; |
mbed_official | 573:ad23fe03a082 | 1271 | } |
mbed_official | 573:ad23fe03a082 | 1272 | |
mbed_official | 573:ad23fe03a082 | 1273 | /** |
mbed_official | 573:ad23fe03a082 | 1274 | * @brief Return the CAN error code |
mbed_official | 573:ad23fe03a082 | 1275 | * @param hcan: pointer to a CAN_HandleTypeDef structure that contains |
mbed_official | 573:ad23fe03a082 | 1276 | * the configuration information for the specified CAN. |
mbed_official | 573:ad23fe03a082 | 1277 | * @retval CAN Error Code |
mbed_official | 573:ad23fe03a082 | 1278 | */ |
mbed_official | 573:ad23fe03a082 | 1279 | uint32_t HAL_CAN_GetError(CAN_HandleTypeDef *hcan) |
mbed_official | 573:ad23fe03a082 | 1280 | { |
mbed_official | 573:ad23fe03a082 | 1281 | return hcan->ErrorCode; |
mbed_official | 573:ad23fe03a082 | 1282 | } |
mbed_official | 573:ad23fe03a082 | 1283 | |
mbed_official | 573:ad23fe03a082 | 1284 | /** |
mbed_official | 573:ad23fe03a082 | 1285 | * @} |
mbed_official | 573:ad23fe03a082 | 1286 | */ |
mbed_official | 573:ad23fe03a082 | 1287 | /** |
mbed_official | 573:ad23fe03a082 | 1288 | * @brief Initiates and transmits a CAN frame message. |
mbed_official | 573:ad23fe03a082 | 1289 | * @param hcan: pointer to a CAN_HandleTypeDef structure that contains |
mbed_official | 573:ad23fe03a082 | 1290 | * the configuration information for the specified CAN. |
mbed_official | 573:ad23fe03a082 | 1291 | * @retval HAL status |
mbed_official | 573:ad23fe03a082 | 1292 | */ |
mbed_official | 573:ad23fe03a082 | 1293 | static HAL_StatusTypeDef CAN_Transmit_IT(CAN_HandleTypeDef* hcan) |
mbed_official | 573:ad23fe03a082 | 1294 | { |
mbed_official | 573:ad23fe03a082 | 1295 | /* Disable Transmit mailbox empty Interrupt */ |
mbed_official | 573:ad23fe03a082 | 1296 | __HAL_CAN_DISABLE_IT(hcan, CAN_IT_TME); |
mbed_official | 573:ad23fe03a082 | 1297 | |
mbed_official | 573:ad23fe03a082 | 1298 | if(hcan->State == HAL_CAN_STATE_BUSY_TX) |
mbed_official | 573:ad23fe03a082 | 1299 | { |
mbed_official | 573:ad23fe03a082 | 1300 | /* Disable Error warning Interrupt */ |
mbed_official | 573:ad23fe03a082 | 1301 | __HAL_CAN_DISABLE_IT(hcan, CAN_IT_EWG); |
mbed_official | 573:ad23fe03a082 | 1302 | |
mbed_official | 573:ad23fe03a082 | 1303 | /* Disable Error passive Interrupt */ |
mbed_official | 573:ad23fe03a082 | 1304 | __HAL_CAN_DISABLE_IT(hcan, CAN_IT_EPV); |
mbed_official | 573:ad23fe03a082 | 1305 | |
mbed_official | 573:ad23fe03a082 | 1306 | /* Disable Bus-off Interrupt */ |
mbed_official | 573:ad23fe03a082 | 1307 | __HAL_CAN_DISABLE_IT(hcan, CAN_IT_BOF); |
mbed_official | 573:ad23fe03a082 | 1308 | |
mbed_official | 573:ad23fe03a082 | 1309 | /* Disable Last error code Interrupt */ |
mbed_official | 573:ad23fe03a082 | 1310 | __HAL_CAN_DISABLE_IT(hcan, CAN_IT_LEC); |
mbed_official | 573:ad23fe03a082 | 1311 | |
mbed_official | 573:ad23fe03a082 | 1312 | /* Disable Error Interrupt */ |
mbed_official | 573:ad23fe03a082 | 1313 | __HAL_CAN_DISABLE_IT(hcan, CAN_IT_ERR); |
mbed_official | 573:ad23fe03a082 | 1314 | } |
mbed_official | 573:ad23fe03a082 | 1315 | |
mbed_official | 573:ad23fe03a082 | 1316 | if(hcan->State == HAL_CAN_STATE_BUSY_TX_RX) |
mbed_official | 573:ad23fe03a082 | 1317 | { |
mbed_official | 573:ad23fe03a082 | 1318 | /* Change CAN state */ |
mbed_official | 573:ad23fe03a082 | 1319 | hcan->State = HAL_CAN_STATE_BUSY_RX; |
mbed_official | 573:ad23fe03a082 | 1320 | } |
mbed_official | 573:ad23fe03a082 | 1321 | else |
mbed_official | 573:ad23fe03a082 | 1322 | { |
mbed_official | 573:ad23fe03a082 | 1323 | /* Change CAN state */ |
mbed_official | 573:ad23fe03a082 | 1324 | hcan->State = HAL_CAN_STATE_READY; |
mbed_official | 573:ad23fe03a082 | 1325 | } |
mbed_official | 573:ad23fe03a082 | 1326 | |
mbed_official | 573:ad23fe03a082 | 1327 | /* Transmission complete callback */ |
mbed_official | 573:ad23fe03a082 | 1328 | HAL_CAN_TxCpltCallback(hcan); |
mbed_official | 573:ad23fe03a082 | 1329 | |
mbed_official | 573:ad23fe03a082 | 1330 | return HAL_OK; |
mbed_official | 573:ad23fe03a082 | 1331 | } |
mbed_official | 573:ad23fe03a082 | 1332 | |
mbed_official | 573:ad23fe03a082 | 1333 | /** |
mbed_official | 573:ad23fe03a082 | 1334 | * @brief Receives a correct CAN frame. |
mbed_official | 573:ad23fe03a082 | 1335 | * @param hcan: Pointer to a CAN_HandleTypeDef structure that contains |
mbed_official | 573:ad23fe03a082 | 1336 | * the configuration information for the specified CAN. |
mbed_official | 573:ad23fe03a082 | 1337 | * @param FIFONumber: Specify the FIFO number |
mbed_official | 573:ad23fe03a082 | 1338 | * @retval HAL status |
mbed_official | 573:ad23fe03a082 | 1339 | * @retval None |
mbed_official | 573:ad23fe03a082 | 1340 | */ |
mbed_official | 573:ad23fe03a082 | 1341 | static HAL_StatusTypeDef CAN_Receive_IT(CAN_HandleTypeDef* hcan, uint8_t FIFONumber) |
mbed_official | 573:ad23fe03a082 | 1342 | { |
mbed_official | 573:ad23fe03a082 | 1343 | /* Get the Id */ |
mbed_official | 573:ad23fe03a082 | 1344 | hcan->pRxMsg->IDE = (uint8_t)0x04 & hcan->Instance->sFIFOMailBox[FIFONumber].RIR; |
mbed_official | 573:ad23fe03a082 | 1345 | if (hcan->pRxMsg->IDE == CAN_ID_STD) |
mbed_official | 573:ad23fe03a082 | 1346 | { |
mbed_official | 573:ad23fe03a082 | 1347 | hcan->pRxMsg->StdId = (uint32_t)0x000007FF & (hcan->Instance->sFIFOMailBox[FIFONumber].RIR >> 21); |
mbed_official | 573:ad23fe03a082 | 1348 | } |
mbed_official | 573:ad23fe03a082 | 1349 | else |
mbed_official | 573:ad23fe03a082 | 1350 | { |
mbed_official | 573:ad23fe03a082 | 1351 | hcan->pRxMsg->ExtId = (uint32_t)0x1FFFFFFF & (hcan->Instance->sFIFOMailBox[FIFONumber].RIR >> 3); |
mbed_official | 573:ad23fe03a082 | 1352 | } |
mbed_official | 573:ad23fe03a082 | 1353 | |
mbed_official | 573:ad23fe03a082 | 1354 | hcan->pRxMsg->RTR = (uint8_t)0x02 & hcan->Instance->sFIFOMailBox[FIFONumber].RIR; |
mbed_official | 573:ad23fe03a082 | 1355 | /* Get the DLC */ |
mbed_official | 573:ad23fe03a082 | 1356 | hcan->pRxMsg->DLC = (uint8_t)0x0F & hcan->Instance->sFIFOMailBox[FIFONumber].RDTR; |
mbed_official | 573:ad23fe03a082 | 1357 | /* Get the FMI */ |
mbed_official | 573:ad23fe03a082 | 1358 | hcan->pRxMsg->FMI = (uint8_t)0xFF & (hcan->Instance->sFIFOMailBox[FIFONumber].RDTR >> 8); |
mbed_official | 573:ad23fe03a082 | 1359 | /* Get the data field */ |
mbed_official | 573:ad23fe03a082 | 1360 | hcan->pRxMsg->Data[0] = (uint8_t)0xFF & hcan->Instance->sFIFOMailBox[FIFONumber].RDLR; |
mbed_official | 573:ad23fe03a082 | 1361 | hcan->pRxMsg->Data[1] = (uint8_t)0xFF & (hcan->Instance->sFIFOMailBox[FIFONumber].RDLR >> 8); |
mbed_official | 573:ad23fe03a082 | 1362 | hcan->pRxMsg->Data[2] = (uint8_t)0xFF & (hcan->Instance->sFIFOMailBox[FIFONumber].RDLR >> 16); |
mbed_official | 573:ad23fe03a082 | 1363 | hcan->pRxMsg->Data[3] = (uint8_t)0xFF & (hcan->Instance->sFIFOMailBox[FIFONumber].RDLR >> 24); |
mbed_official | 573:ad23fe03a082 | 1364 | hcan->pRxMsg->Data[4] = (uint8_t)0xFF & hcan->Instance->sFIFOMailBox[FIFONumber].RDHR; |
mbed_official | 573:ad23fe03a082 | 1365 | hcan->pRxMsg->Data[5] = (uint8_t)0xFF & (hcan->Instance->sFIFOMailBox[FIFONumber].RDHR >> 8); |
mbed_official | 573:ad23fe03a082 | 1366 | hcan->pRxMsg->Data[6] = (uint8_t)0xFF & (hcan->Instance->sFIFOMailBox[FIFONumber].RDHR >> 16); |
mbed_official | 573:ad23fe03a082 | 1367 | hcan->pRxMsg->Data[7] = (uint8_t)0xFF & (hcan->Instance->sFIFOMailBox[FIFONumber].RDHR >> 24); |
mbed_official | 573:ad23fe03a082 | 1368 | /* Release the FIFO */ |
mbed_official | 573:ad23fe03a082 | 1369 | /* Release FIFO0 */ |
mbed_official | 573:ad23fe03a082 | 1370 | if (FIFONumber == CAN_FIFO0) |
mbed_official | 573:ad23fe03a082 | 1371 | { |
mbed_official | 573:ad23fe03a082 | 1372 | __HAL_CAN_FIFO_RELEASE(hcan, CAN_FIFO0); |
mbed_official | 573:ad23fe03a082 | 1373 | |
mbed_official | 573:ad23fe03a082 | 1374 | /* Disable FIFO 0 message pending Interrupt */ |
mbed_official | 573:ad23fe03a082 | 1375 | __HAL_CAN_DISABLE_IT(hcan, CAN_IT_FMP0); |
mbed_official | 573:ad23fe03a082 | 1376 | } |
mbed_official | 573:ad23fe03a082 | 1377 | /* Release FIFO1 */ |
mbed_official | 573:ad23fe03a082 | 1378 | else /* FIFONumber == CAN_FIFO1 */ |
mbed_official | 573:ad23fe03a082 | 1379 | { |
mbed_official | 573:ad23fe03a082 | 1380 | __HAL_CAN_FIFO_RELEASE(hcan, CAN_FIFO1); |
mbed_official | 573:ad23fe03a082 | 1381 | |
mbed_official | 573:ad23fe03a082 | 1382 | /* Disable FIFO 1 message pending Interrupt */ |
mbed_official | 573:ad23fe03a082 | 1383 | __HAL_CAN_DISABLE_IT(hcan, CAN_IT_FMP1); |
mbed_official | 573:ad23fe03a082 | 1384 | } |
mbed_official | 573:ad23fe03a082 | 1385 | |
mbed_official | 573:ad23fe03a082 | 1386 | if(hcan->State == HAL_CAN_STATE_BUSY_RX) |
mbed_official | 573:ad23fe03a082 | 1387 | { |
mbed_official | 573:ad23fe03a082 | 1388 | /* Disable Error warning Interrupt */ |
mbed_official | 573:ad23fe03a082 | 1389 | __HAL_CAN_DISABLE_IT(hcan, CAN_IT_EWG); |
mbed_official | 573:ad23fe03a082 | 1390 | |
mbed_official | 573:ad23fe03a082 | 1391 | /* Disable Error passive Interrupt */ |
mbed_official | 573:ad23fe03a082 | 1392 | __HAL_CAN_DISABLE_IT(hcan, CAN_IT_EPV); |
mbed_official | 573:ad23fe03a082 | 1393 | |
mbed_official | 573:ad23fe03a082 | 1394 | /* Disable Bus-off Interrupt */ |
mbed_official | 573:ad23fe03a082 | 1395 | __HAL_CAN_DISABLE_IT(hcan, CAN_IT_BOF); |
mbed_official | 573:ad23fe03a082 | 1396 | |
mbed_official | 573:ad23fe03a082 | 1397 | /* Disable Last error code Interrupt */ |
mbed_official | 573:ad23fe03a082 | 1398 | __HAL_CAN_DISABLE_IT(hcan, CAN_IT_LEC); |
mbed_official | 573:ad23fe03a082 | 1399 | |
mbed_official | 573:ad23fe03a082 | 1400 | /* Disable Error Interrupt */ |
mbed_official | 573:ad23fe03a082 | 1401 | __HAL_CAN_DISABLE_IT(hcan, CAN_IT_ERR); |
mbed_official | 573:ad23fe03a082 | 1402 | } |
mbed_official | 573:ad23fe03a082 | 1403 | |
mbed_official | 573:ad23fe03a082 | 1404 | if(hcan->State == HAL_CAN_STATE_BUSY_TX_RX) |
mbed_official | 573:ad23fe03a082 | 1405 | { |
mbed_official | 573:ad23fe03a082 | 1406 | /* Disable CAN state */ |
mbed_official | 573:ad23fe03a082 | 1407 | hcan->State = HAL_CAN_STATE_BUSY_TX; |
mbed_official | 573:ad23fe03a082 | 1408 | } |
mbed_official | 573:ad23fe03a082 | 1409 | else |
mbed_official | 573:ad23fe03a082 | 1410 | { |
mbed_official | 573:ad23fe03a082 | 1411 | /* Change CAN state */ |
mbed_official | 573:ad23fe03a082 | 1412 | hcan->State = HAL_CAN_STATE_READY; |
mbed_official | 573:ad23fe03a082 | 1413 | } |
mbed_official | 573:ad23fe03a082 | 1414 | |
mbed_official | 573:ad23fe03a082 | 1415 | /* Receive complete callback */ |
mbed_official | 573:ad23fe03a082 | 1416 | HAL_CAN_RxCpltCallback(hcan); |
mbed_official | 573:ad23fe03a082 | 1417 | |
mbed_official | 573:ad23fe03a082 | 1418 | /* Return function status */ |
mbed_official | 573:ad23fe03a082 | 1419 | return HAL_OK; |
mbed_official | 573:ad23fe03a082 | 1420 | } |
mbed_official | 573:ad23fe03a082 | 1421 | |
mbed_official | 573:ad23fe03a082 | 1422 | /** |
mbed_official | 573:ad23fe03a082 | 1423 | * @} |
mbed_official | 573:ad23fe03a082 | 1424 | */ |
mbed_official | 573:ad23fe03a082 | 1425 | |
mbed_official | 573:ad23fe03a082 | 1426 | #endif /* HAL_CAN_MODULE_ENABLED */ |
mbed_official | 573:ad23fe03a082 | 1427 | /** |
mbed_official | 573:ad23fe03a082 | 1428 | * @} |
mbed_official | 573:ad23fe03a082 | 1429 | */ |
mbed_official | 573:ad23fe03a082 | 1430 | |
mbed_official | 573:ad23fe03a082 | 1431 | /** |
mbed_official | 573:ad23fe03a082 | 1432 | * @} |
mbed_official | 573:ad23fe03a082 | 1433 | */ |
mbed_official | 573:ad23fe03a082 | 1434 | |
mbed_official | 573:ad23fe03a082 | 1435 | /************************ (C) COPYRIGHT STMicroelectronics *****END OF FILE****/ |