mbed-src - Watchdog Timer

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Watchdog Timer

Fork of mbed-src by mbed official

targets/cmsis/TARGET_STM/TARGET_STM32F3/stm32f3xx_hal_can.c@635:ac7d6880524d, 2015-09-28 (annotated)

Committer:: mbed_official
Date:: Mon Sep 28 20:15:09 2015 +0100
Revision:: 635:ac7d6880524d
Parent:: 633:7687fb9c4f91

Synchronized with git revision 9b7d23d47153c298a6d24de9a415202705889d11

Full URL: https://github.com/mbedmicro/mbed/commit/9b7d23d47153c298a6d24de9a415202705889d11/

Revert "[NUCLEO_F303K8] add support of the STM32F303K8"

Who changed what in which revision?

User	Revision	Line number	New contents of line
mbed_official	237:f3da66175598	1	/**
mbed_official	237:f3da66175598	2	******************************************************************************
mbed_official	237:f3da66175598	3	* @file stm32f3xx_hal_can.c
mbed_official	237:f3da66175598	4	* @author MCD Application Team
mbed_official	635:ac7d6880524d	5	* @version V1.1.0
mbed_official	635:ac7d6880524d	6	* @date 12-Sept-2014
mbed_official	237:f3da66175598	7	* @brief CAN HAL module driver.
mbed_official	237:f3da66175598	8	*
mbed_official	237:f3da66175598	9	* This file provides firmware functions to manage the following
mbed_official	237:f3da66175598	10	* functionalities of the Controller Area Network (CAN) peripheral:
mbed_official	237:f3da66175598	11	* + Initialization and de-initialization functions
mbed_official	237:f3da66175598	12	* + IO operation functions
mbed_official	237:f3da66175598	13	* + Peripheral Control functions
mbed_official	237:f3da66175598	14	* + Peripheral State and Error functions
mbed_official	237:f3da66175598	15	*
mbed_official	237:f3da66175598	16	@verbatim
mbed_official	237:f3da66175598	17	==============================================================================
mbed_official	237:f3da66175598	18	##### How to use this driver #####
mbed_official	237:f3da66175598	19	==============================================================================
mbed_official	237:f3da66175598	20	[..]
mbed_official	237:f3da66175598	21	(#) Enable the CAN controller interface clock using
mbed_official	237:f3da66175598	22	__CAN_CLK_ENABLE();
mbed_official	237:f3da66175598	23
mbed_official	237:f3da66175598	24	(#) CAN pins configuration
mbed_official	237:f3da66175598	25	(++) Enable the clock for the CAN GPIOs using the following function:
mbed_official	237:f3da66175598	26	__GPIOx_CLK_ENABLE();
mbed_official	237:f3da66175598	27	(++) Connect and configure the involved CAN pins to AF9 using the
mbed_official	237:f3da66175598	28	following function HAL_GPIO_Init();
mbed_official	237:f3da66175598	29
mbed_official	237:f3da66175598	30	(#) Initialise and configure the CAN using HAL_CAN_Init() function.
mbed_official	237:f3da66175598	31
mbed_official	237:f3da66175598	32	(#) Transmit the desired CAN frame using HAL_CAN_Transmit() function.
mbed_official	237:f3da66175598	33
mbed_official	237:f3da66175598	34	(#) Receive a CAN frame using HAL_CAN_Receive() function.
mbed_official	237:f3da66175598	35
mbed_official	237:f3da66175598	36	* Polling mode IO operation *
mbed_official	237:f3da66175598	37	=================================
mbed_official	237:f3da66175598	38	[..]
mbed_official	237:f3da66175598	39	(+) Start the CAN peripheral transmission and wait the end of this operation
mbed_official	237:f3da66175598	40	using HAL_CAN_Transmit(), at this stage user can specify the value of timeout
mbed_official	237:f3da66175598	41	according to his end application
mbed_official	237:f3da66175598	42	(+) Start the CAN peripheral reception and wait the end of this operation
mbed_official	237:f3da66175598	43	using HAL_CAN_Receive(), at this stage user can specify the value of timeout
mbed_official	237:f3da66175598	44	according to his end application
mbed_official	237:f3da66175598	45
mbed_official	237:f3da66175598	46	* Interrupt mode IO operation *
mbed_official	237:f3da66175598	47	===================================
mbed_official	237:f3da66175598	48	[..]
mbed_official	237:f3da66175598	49	(+) Start the CAN peripheral transmission using HAL_CAN_Transmit_IT()
mbed_official	237:f3da66175598	50	(+) Start the CAN peripheral reception using HAL_CAN_Receive_IT()
mbed_official	237:f3da66175598	51	(+) Use HAL_CAN_IRQHandler() called under the used CAN Interrupt subroutine
mbed_official	237:f3da66175598	52	(+) At CAN end of transmission HAL_CAN_TxCpltCallback() function is executed and user can
mbed_official	237:f3da66175598	53	add his own code by customization of function pointer HAL_CAN_TxCpltCallback
mbed_official	237:f3da66175598	54	(+) In case of CAN Error, HAL_CAN_ErrorCallback() function is executed and user can
mbed_official	237:f3da66175598	55	add his own code by customization of function pointer HAL_CAN_ErrorCallback
mbed_official	237:f3da66175598	56
mbed_official	237:f3da66175598	57	* CAN HAL driver macros list *
mbed_official	237:f3da66175598	58	=============================================
mbed_official	237:f3da66175598	59	[..]
mbed_official	237:f3da66175598	60	Below the list of most used macros in CAN HAL driver.
mbed_official	237:f3da66175598	61
mbed_official	237:f3da66175598	62	(+) __HAL_CAN_ENABLE_IT: Enable the specified CAN interrupts
mbed_official	237:f3da66175598	63	(+) __HAL_CAN_DISABLE_IT: Disable the specified CAN interrupts
mbed_official	237:f3da66175598	64	(+) __HAL_CAN_GET_IT_SOURCE: Check if the specified CAN interrupt source is enabled or disabled
mbed_official	237:f3da66175598	65	(+) __HAL_CAN_CLEAR_FLAG: Clear the CAN's pending flags
mbed_official	237:f3da66175598	66	(+) __HAL_CAN_GET_FLAG: Get the selected CAN's flag status
mbed_official	237:f3da66175598	67
mbed_official	237:f3da66175598	68	[..]
mbed_official	237:f3da66175598	69	(@) You can refer to the CAN HAL driver header file for more useful macros
mbed_official	237:f3da66175598	70
mbed_official	237:f3da66175598	71	@endverbatim
mbed_official	237:f3da66175598	72
mbed_official	237:f3da66175598	73	******************************************************************************
mbed_official	237:f3da66175598	74	* @attention
mbed_official	237:f3da66175598	75	*
mbed_official	635:ac7d6880524d	76	* <h2><center>© COPYRIGHT(c) 2014 STMicroelectronics</center></h2>
mbed_official	237:f3da66175598	77	*
mbed_official	237:f3da66175598	78	* Redistribution and use in source and binary forms, with or without modification,
mbed_official	237:f3da66175598	79	* are permitted provided that the following conditions are met:
mbed_official	237:f3da66175598	80	* 1. Redistributions of source code must retain the above copyright notice,
mbed_official	237:f3da66175598	81	* this list of conditions and the following disclaimer.
mbed_official	237:f3da66175598	82	* 2. Redistributions in binary form must reproduce the above copyright notice,
mbed_official	237:f3da66175598	83	* this list of conditions and the following disclaimer in the documentation
mbed_official	237:f3da66175598	84	* and/or other materials provided with the distribution.
mbed_official	237:f3da66175598	85	* 3. Neither the name of STMicroelectronics nor the names of its contributors
mbed_official	237:f3da66175598	86	* may be used to endorse or promote products derived from this software
mbed_official	237:f3da66175598	87	* without specific prior written permission.
mbed_official	237:f3da66175598	88	*
mbed_official	237:f3da66175598	89	* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
mbed_official	237:f3da66175598	90	* AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
mbed_official	237:f3da66175598	91	* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
mbed_official	237:f3da66175598	92	* DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE
mbed_official	237:f3da66175598	93	* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
mbed_official	237:f3da66175598	94	* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
mbed_official	237:f3da66175598	95	* SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
mbed_official	237:f3da66175598	96	* CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
mbed_official	237:f3da66175598	97	* OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
mbed_official	237:f3da66175598	98	* OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
mbed_official	237:f3da66175598	99	*
mbed_official	237:f3da66175598	100	******************************************************************************
mbed_official	237:f3da66175598	101	*/
mbed_official	237:f3da66175598	102
mbed_official	237:f3da66175598	103	/* Includes ------------------------------------------------------------------*/
mbed_official	237:f3da66175598	104	#include "stm32f3xx_hal.h"
mbed_official	237:f3da66175598	105
mbed_official	237:f3da66175598	106	/** @addtogroup STM32F3xx_HAL_Driver
mbed_official	237:f3da66175598	107	* @{
mbed_official	237:f3da66175598	108	*/
mbed_official	237:f3da66175598	109
mbed_official	375:3d36234a1087	110	/** @defgroup CAN CAN HAL module driver
mbed_official	237:f3da66175598	111	* @brief CAN driver modules
mbed_official	237:f3da66175598	112	* @{
mbed_official	237:f3da66175598	113	*/
mbed_official	237:f3da66175598	114
mbed_official	237:f3da66175598	115	#ifdef HAL_CAN_MODULE_ENABLED
mbed_official	237:f3da66175598	116
mbed_official	375:3d36234a1087	117	#if defined(STM32F302xE) \|\| defined(STM32F303xE) \|\| defined(STM32F398xx) \|\| \
mbed_official	375:3d36234a1087	118	defined(STM32F302xC) \|\| defined(STM32F303xC) \|\| defined(STM32F358xx) \|\| \
mbed_official	375:3d36234a1087	119	defined(STM32F303x8) \|\| defined(STM32F334x8) \|\| defined(STM32F328xx) \|\| \
mbed_official	375:3d36234a1087	120	defined(STM32F302x8) \|\| \
mbed_official	375:3d36234a1087	121	defined(STM32F373xC) \|\| defined(STM32F378xx)
mbed_official	237:f3da66175598	122
mbed_official	237:f3da66175598	123	/* Private typedef -----------------------------------------------------------*/
mbed_official	237:f3da66175598	124	/* Private define ------------------------------------------------------------*/
mbed_official	237:f3da66175598	125	/* Private macro -------------------------------------------------------------*/
mbed_official	237:f3da66175598	126	/* Private variables ---------------------------------------------------------*/
mbed_official	237:f3da66175598	127	/* Private function prototypes -----------------------------------------------*/
mbed_official	237:f3da66175598	128	static HAL_StatusTypeDef CAN_Receive_IT(CAN_HandleTypeDef* hcan, uint8_t FIFONumber);
mbed_official	237:f3da66175598	129	static HAL_StatusTypeDef CAN_Transmit_IT(CAN_HandleTypeDef* hcan);
mbed_official	375:3d36234a1087	130	/* Exported functions ---------------------------------------------------------*/
mbed_official	237:f3da66175598	131
mbed_official	375:3d36234a1087	132	/** @defgroup CAN_Exported_Functions CAN Exported Functions
mbed_official	237:f3da66175598	133	* @{
mbed_official	237:f3da66175598	134	*/
mbed_official	237:f3da66175598	135
mbed_official	375:3d36234a1087	136	/** @defgroup CAN_Exported_Functions_Group1 Initialization and de-initialization functions
mbed_official	237:f3da66175598	137	* @brief Initialization and Configuration functions
mbed_official	237:f3da66175598	138	*
mbed_official	237:f3da66175598	139	@verbatim
mbed_official	237:f3da66175598	140	==============================================================================
mbed_official	237:f3da66175598	141	##### Initialization and de-initialization functions #####
mbed_official	237:f3da66175598	142	==============================================================================
mbed_official	237:f3da66175598	143	[..] This section provides functions allowing to:
mbed_official	237:f3da66175598	144	(+) Initialize and configure the CAN.
mbed_official	237:f3da66175598	145	(+) De-initialize the CAN.
mbed_official	237:f3da66175598	146
mbed_official	237:f3da66175598	147	@endverbatim
mbed_official	237:f3da66175598	148	* @{
mbed_official	237:f3da66175598	149	*/
mbed_official	237:f3da66175598	150
mbed_official	237:f3da66175598	151	/**
mbed_official	237:f3da66175598	152	* @brief Initializes the CAN peripheral according to the specified
mbed_official	237:f3da66175598	153	* parameters in the CAN_InitStruct.
mbed_official	237:f3da66175598	154	* @param hcan: pointer to a CAN_HandleTypeDef structure that contains
mbed_official	237:f3da66175598	155	* the configuration information for the specified CAN.
mbed_official	237:f3da66175598	156	* @retval HAL status
mbed_official	237:f3da66175598	157	*/
mbed_official	237:f3da66175598	158	HAL_StatusTypeDef HAL_CAN_Init(CAN_HandleTypeDef* hcan)
mbed_official	237:f3da66175598	159	{
mbed_official	237:f3da66175598	160	uint32_t status = CAN_INITSTATUS_FAILED; /* Default init status */
mbed_official	237:f3da66175598	161	uint32_t tickstart = 0;
mbed_official	237:f3da66175598	162
mbed_official	237:f3da66175598	163	/* Check CAN handle */
mbed_official	635:ac7d6880524d	164	if(hcan == HAL_NULL)
mbed_official	237:f3da66175598	165	{
mbed_official	237:f3da66175598	166	return HAL_ERROR;
mbed_official	237:f3da66175598	167	}
mbed_official	237:f3da66175598	168
mbed_official	237:f3da66175598	169	/* Check the parameters */
mbed_official	237:f3da66175598	170	assert_param(IS_CAN_ALL_INSTANCE(hcan->Instance));
mbed_official	237:f3da66175598	171	assert_param(IS_FUNCTIONAL_STATE(hcan->Init.TTCM));
mbed_official	237:f3da66175598	172	assert_param(IS_FUNCTIONAL_STATE(hcan->Init.ABOM));
mbed_official	237:f3da66175598	173	assert_param(IS_FUNCTIONAL_STATE(hcan->Init.AWUM));
mbed_official	237:f3da66175598	174	assert_param(IS_FUNCTIONAL_STATE(hcan->Init.NART));
mbed_official	237:f3da66175598	175	assert_param(IS_FUNCTIONAL_STATE(hcan->Init.RFLM));
mbed_official	237:f3da66175598	176	assert_param(IS_FUNCTIONAL_STATE(hcan->Init.TXFP));
mbed_official	237:f3da66175598	177	assert_param(IS_CAN_MODE(hcan->Init.Mode));
mbed_official	237:f3da66175598	178	assert_param(IS_CAN_SJW(hcan->Init.SJW));
mbed_official	237:f3da66175598	179	assert_param(IS_CAN_BS1(hcan->Init.BS1));
mbed_official	237:f3da66175598	180	assert_param(IS_CAN_BS2(hcan->Init.BS2));
mbed_official	237:f3da66175598	181	assert_param(IS_CAN_PRESCALER(hcan->Init.Prescaler));
mbed_official	237:f3da66175598	182
mbed_official	237:f3da66175598	183	if(hcan->State == HAL_CAN_STATE_RESET)
mbed_official	237:f3da66175598	184	{
mbed_official	237:f3da66175598	185	/* Init the low level hardware */
mbed_official	237:f3da66175598	186	HAL_CAN_MspInit(hcan);
mbed_official	237:f3da66175598	187	}
mbed_official	237:f3da66175598	188
mbed_official	237:f3da66175598	189	/* Initialize the CAN state*/
mbed_official	237:f3da66175598	190	hcan->State = HAL_CAN_STATE_BUSY;
mbed_official	237:f3da66175598	191
mbed_official	237:f3da66175598	192	/* Exit from sleep mode */
mbed_official	237:f3da66175598	193	hcan->Instance->MCR &= (~(uint32_t)CAN_MCR_SLEEP);
mbed_official	237:f3da66175598	194
mbed_official	237:f3da66175598	195	/* Request initialisation */
mbed_official	237:f3da66175598	196	hcan->Instance->MCR \|= CAN_MCR_INRQ ;
mbed_official	237:f3da66175598	197
mbed_official	237:f3da66175598	198	/* Get timeout */
mbed_official	237:f3da66175598	199	tickstart = HAL_GetTick();
mbed_official	237:f3da66175598	200
mbed_official	237:f3da66175598	201	/* Wait the acknowledge */
mbed_official	237:f3da66175598	202	while((hcan->Instance->MSR & CAN_MSR_INAK) != CAN_MSR_INAK)
mbed_official	237:f3da66175598	203	{
mbed_official	237:f3da66175598	204	if((HAL_GetTick()-tickstart) > INAK_TIMEOUT)
mbed_official	237:f3da66175598	205	{
mbed_official	237:f3da66175598	206	hcan->State= HAL_CAN_STATE_TIMEOUT;
mbed_official	237:f3da66175598	207	return HAL_TIMEOUT;
mbed_official	237:f3da66175598	208	}
mbed_official	237:f3da66175598	209	}
mbed_official	237:f3da66175598	210
mbed_official	237:f3da66175598	211	/* Check acknowledge */
mbed_official	237:f3da66175598	212	if ((hcan->Instance->MSR & CAN_MSR_INAK) == CAN_MSR_INAK)
mbed_official	237:f3da66175598	213	{
mbed_official	237:f3da66175598	214	/* Set the time triggered communication mode */
mbed_official	237:f3da66175598	215	if (hcan->Init.TTCM == ENABLE)
mbed_official	237:f3da66175598	216	{
mbed_official	237:f3da66175598	217	hcan->Instance->MCR \|= CAN_MCR_TTCM;
mbed_official	237:f3da66175598	218	}
mbed_official	237:f3da66175598	219	else
mbed_official	237:f3da66175598	220	{
mbed_official	237:f3da66175598	221	hcan->Instance->MCR &= ~(uint32_t)CAN_MCR_TTCM;
mbed_official	237:f3da66175598	222	}
mbed_official	237:f3da66175598	223
mbed_official	237:f3da66175598	224	/* Set the automatic bus-off management */
mbed_official	237:f3da66175598	225	if (hcan->Init.ABOM == ENABLE)
mbed_official	237:f3da66175598	226	{
mbed_official	237:f3da66175598	227	hcan->Instance->MCR \|= CAN_MCR_ABOM;
mbed_official	237:f3da66175598	228	}
mbed_official	237:f3da66175598	229	else
mbed_official	237:f3da66175598	230	{
mbed_official	237:f3da66175598	231	hcan->Instance->MCR &= ~(uint32_t)CAN_MCR_ABOM;
mbed_official	237:f3da66175598	232	}
mbed_official	237:f3da66175598	233
mbed_official	237:f3da66175598	234	/* Set the automatic wake-up mode */
mbed_official	237:f3da66175598	235	if (hcan->Init.AWUM == ENABLE)
mbed_official	237:f3da66175598	236	{
mbed_official	237:f3da66175598	237	hcan->Instance->MCR \|= CAN_MCR_AWUM;
mbed_official	237:f3da66175598	238	}
mbed_official	237:f3da66175598	239	else
mbed_official	237:f3da66175598	240	{
mbed_official	237:f3da66175598	241	hcan->Instance->MCR &= ~(uint32_t)CAN_MCR_AWUM;
mbed_official	237:f3da66175598	242	}
mbed_official	237:f3da66175598	243
mbed_official	237:f3da66175598	244	/* Set the no automatic retransmission */
mbed_official	237:f3da66175598	245	if (hcan->Init.NART == ENABLE)
mbed_official	237:f3da66175598	246	{
mbed_official	237:f3da66175598	247	hcan->Instance->MCR \|= CAN_MCR_NART;
mbed_official	237:f3da66175598	248	}
mbed_official	237:f3da66175598	249	else
mbed_official	237:f3da66175598	250	{
mbed_official	237:f3da66175598	251	hcan->Instance->MCR &= ~(uint32_t)CAN_MCR_NART;
mbed_official	237:f3da66175598	252	}
mbed_official	237:f3da66175598	253
mbed_official	237:f3da66175598	254	/* Set the receive FIFO locked mode */
mbed_official	237:f3da66175598	255	if (hcan->Init.RFLM == ENABLE)
mbed_official	237:f3da66175598	256	{
mbed_official	237:f3da66175598	257	hcan->Instance->MCR \|= CAN_MCR_RFLM;
mbed_official	237:f3da66175598	258	}
mbed_official	237:f3da66175598	259	else
mbed_official	237:f3da66175598	260	{
mbed_official	237:f3da66175598	261	hcan->Instance->MCR &= ~(uint32_t)CAN_MCR_RFLM;
mbed_official	237:f3da66175598	262	}
mbed_official	237:f3da66175598	263
mbed_official	237:f3da66175598	264	/* Set the transmit FIFO priority */
mbed_official	237:f3da66175598	265	if (hcan->Init.TXFP == ENABLE)
mbed_official	237:f3da66175598	266	{
mbed_official	237:f3da66175598	267	hcan->Instance->MCR \|= CAN_MCR_TXFP;
mbed_official	237:f3da66175598	268	}
mbed_official	237:f3da66175598	269	else
mbed_official	237:f3da66175598	270	{
mbed_official	237:f3da66175598	271	hcan->Instance->MCR &= ~(uint32_t)CAN_MCR_TXFP;
mbed_official	237:f3da66175598	272	}
mbed_official	237:f3da66175598	273
mbed_official	237:f3da66175598	274	/* Set the bit timing register */
mbed_official	237:f3da66175598	275	hcan->Instance->BTR = (uint32_t)((uint32_t)hcan->Init.Mode) \| \
mbed_official	237:f3da66175598	276	((uint32_t)hcan->Init.SJW) \| \
mbed_official	237:f3da66175598	277	((uint32_t)hcan->Init.BS1) \| \
mbed_official	237:f3da66175598	278	((uint32_t)hcan->Init.BS2) \| \
mbed_official	237:f3da66175598	279	((uint32_t)hcan->Init.Prescaler - 1);
mbed_official	237:f3da66175598	280
mbed_official	237:f3da66175598	281	/* Request leave initialisation */
mbed_official	237:f3da66175598	282	hcan->Instance->MCR &= ~(uint32_t)CAN_MCR_INRQ;
mbed_official	237:f3da66175598	283
mbed_official	237:f3da66175598	284	/* Get timeout */
mbed_official	237:f3da66175598	285	tickstart = HAL_GetTick();
mbed_official	237:f3da66175598	286
mbed_official	237:f3da66175598	287	/* Wait the acknowledge */
mbed_official	237:f3da66175598	288	while((hcan->Instance->MSR & CAN_MSR_INAK) == CAN_MSR_INAK)
mbed_official	237:f3da66175598	289	{
mbed_official	237:f3da66175598	290	if((HAL_GetTick()-tickstart) > INAK_TIMEOUT)
mbed_official	237:f3da66175598	291	{
mbed_official	237:f3da66175598	292	hcan->State= HAL_CAN_STATE_TIMEOUT;
mbed_official	237:f3da66175598	293	return HAL_TIMEOUT;
mbed_official	237:f3da66175598	294	}
mbed_official	237:f3da66175598	295	}
mbed_official	237:f3da66175598	296
mbed_official	237:f3da66175598	297	/* Check acknowledged */
mbed_official	237:f3da66175598	298	if ((hcan->Instance->MSR & CAN_MSR_INAK) != CAN_MSR_INAK)
mbed_official	237:f3da66175598	299	{
mbed_official	237:f3da66175598	300	status = CAN_INITSTATUS_SUCCESS;
mbed_official	237:f3da66175598	301	}
mbed_official	237:f3da66175598	302	}
mbed_official	237:f3da66175598	303
mbed_official	237:f3da66175598	304	if(status == CAN_INITSTATUS_SUCCESS)
mbed_official	237:f3da66175598	305	{
mbed_official	237:f3da66175598	306	/* Set CAN error code to none */
mbed_official	237:f3da66175598	307	hcan->ErrorCode = HAL_CAN_ERROR_NONE;
mbed_official	237:f3da66175598	308
mbed_official	237:f3da66175598	309	/* Initialize the CAN state */
mbed_official	237:f3da66175598	310	hcan->State = HAL_CAN_STATE_READY;
mbed_official	237:f3da66175598	311
mbed_official	237:f3da66175598	312	/* Return function status */
mbed_official	237:f3da66175598	313	return HAL_OK;
mbed_official	237:f3da66175598	314	}
mbed_official	237:f3da66175598	315	else
mbed_official	237:f3da66175598	316	{
mbed_official	237:f3da66175598	317	/* Initialize the CAN state */
mbed_official	237:f3da66175598	318	hcan->State = HAL_CAN_STATE_ERROR;
mbed_official	237:f3da66175598	319
mbed_official	237:f3da66175598	320	/* Return function status */
mbed_official	237:f3da66175598	321	return HAL_ERROR;
mbed_official	237:f3da66175598	322	}
mbed_official	237:f3da66175598	323	}
mbed_official	237:f3da66175598	324
mbed_official	237:f3da66175598	325	/**
mbed_official	237:f3da66175598	326	* @brief Configures the CAN reception filter according to the specified
mbed_official	237:f3da66175598	327	* parameters in the CAN_FilterInitStruct.
mbed_official	237:f3da66175598	328	* @param hcan: pointer to a CAN_HandleTypeDef structure that contains
mbed_official	237:f3da66175598	329	* the configuration information for the specified CAN.
mbed_official	237:f3da66175598	330	* @param sFilterConfig: pointer to a CAN_FilterConfTypeDef structure that
mbed_official	237:f3da66175598	331	* contains the filter configuration information.
mbed_official	237:f3da66175598	332	* @retval None
mbed_official	237:f3da66175598	333	*/
mbed_official	237:f3da66175598	334	HAL_StatusTypeDef HAL_CAN_ConfigFilter(CAN_HandleTypeDef* hcan, CAN_FilterConfTypeDef* sFilterConfig)
mbed_official	237:f3da66175598	335	{
mbed_official	237:f3da66175598	336	uint32_t filternbrbitpos = 0;
mbed_official	237:f3da66175598	337
mbed_official	237:f3da66175598	338	/* Check the parameters */
mbed_official	237:f3da66175598	339	assert_param(IS_CAN_FILTER_NUMBER(sFilterConfig->FilterNumber));
mbed_official	237:f3da66175598	340	assert_param(IS_CAN_FILTER_MODE(sFilterConfig->FilterMode));
mbed_official	237:f3da66175598	341	assert_param(IS_CAN_FILTER_SCALE(sFilterConfig->FilterScale));
mbed_official	237:f3da66175598	342	assert_param(IS_CAN_FILTER_FIFO(sFilterConfig->FilterFIFOAssignment));
mbed_official	237:f3da66175598	343	assert_param(IS_FUNCTIONAL_STATE(sFilterConfig->FilterActivation));
mbed_official	237:f3da66175598	344	assert_param(IS_CAN_BANKNUMBER(sFilterConfig->BankNumber));
mbed_official	237:f3da66175598	345
mbed_official	237:f3da66175598	346	filternbrbitpos = ((uint32_t)1) << sFilterConfig->FilterNumber;
mbed_official	237:f3da66175598	347
mbed_official	237:f3da66175598	348	/* Initialisation mode for the filter */
mbed_official	237:f3da66175598	349	hcan->Instance->FMR \|= (uint32_t)CAN_FMR_FINIT;
mbed_official	237:f3da66175598	350
mbed_official	237:f3da66175598	351	/* Filter Deactivation */
mbed_official	237:f3da66175598	352	hcan->Instance->FA1R &= ~(uint32_t)filternbrbitpos;
mbed_official	237:f3da66175598	353
mbed_official	237:f3da66175598	354	/* Filter Scale */
mbed_official	237:f3da66175598	355	if (sFilterConfig->FilterScale == CAN_FILTERSCALE_16BIT)
mbed_official	237:f3da66175598	356	{
mbed_official	237:f3da66175598	357	/* 16-bit scale for the filter */
mbed_official	237:f3da66175598	358	hcan->Instance->FS1R &= ~(uint32_t)filternbrbitpos;
mbed_official	237:f3da66175598	359
mbed_official	237:f3da66175598	360	/* First 16-bit identifier and First 16-bit mask */
mbed_official	237:f3da66175598	361	/* Or First 16-bit identifier and Second 16-bit identifier */
mbed_official	237:f3da66175598	362	hcan->Instance->sFilterRegister[sFilterConfig->FilterNumber].FR1 =
mbed_official	237:f3da66175598	363	((0x0000FFFF & (uint32_t)sFilterConfig->FilterMaskIdLow) << 16) \|
mbed_official	237:f3da66175598	364	(0x0000FFFF & (uint32_t)sFilterConfig->FilterIdLow);
mbed_official	237:f3da66175598	365
mbed_official	237:f3da66175598	366	/* Second 16-bit identifier and Second 16-bit mask */
mbed_official	237:f3da66175598	367	/* Or Third 16-bit identifier and Fourth 16-bit identifier */
mbed_official	237:f3da66175598	368	hcan->Instance->sFilterRegister[sFilterConfig->FilterNumber].FR2 =
mbed_official	237:f3da66175598	369	((0x0000FFFF & (uint32_t)sFilterConfig->FilterMaskIdHigh) << 16) \|
mbed_official	237:f3da66175598	370	(0x0000FFFF & (uint32_t)sFilterConfig->FilterIdHigh);
mbed_official	237:f3da66175598	371	}
mbed_official	237:f3da66175598	372
mbed_official	237:f3da66175598	373	if (sFilterConfig->FilterScale == CAN_FILTERSCALE_32BIT)
mbed_official	237:f3da66175598	374	{
mbed_official	237:f3da66175598	375	/* 32-bit scale for the filter */
mbed_official	237:f3da66175598	376	hcan->Instance->FS1R \|= filternbrbitpos;
mbed_official	237:f3da66175598	377	/* 32-bit identifier or First 32-bit identifier */
mbed_official	237:f3da66175598	378	hcan->Instance->sFilterRegister[sFilterConfig->FilterNumber].FR1 =
mbed_official	237:f3da66175598	379	((0x0000FFFF & (uint32_t)sFilterConfig->FilterIdHigh) << 16) \|
mbed_official	237:f3da66175598	380	(0x0000FFFF & (uint32_t)sFilterConfig->FilterIdLow);
mbed_official	237:f3da66175598	381	/* 32-bit mask or Second 32-bit identifier */
mbed_official	237:f3da66175598	382	hcan->Instance->sFilterRegister[sFilterConfig->FilterNumber].FR2 =
mbed_official	237:f3da66175598	383	((0x0000FFFF & (uint32_t)sFilterConfig->FilterMaskIdHigh) << 16) \|
mbed_official	237:f3da66175598	384	(0x0000FFFF & (uint32_t)sFilterConfig->FilterMaskIdLow);
mbed_official	237:f3da66175598	385	}
mbed_official	237:f3da66175598	386
mbed_official	237:f3da66175598	387	/* Filter Mode */
mbed_official	237:f3da66175598	388	if (sFilterConfig->FilterMode == CAN_FILTERMODE_IDMASK)
mbed_official	237:f3da66175598	389	{
mbed_official	237:f3da66175598	390	/Id/Mask mode for the filter/
mbed_official	237:f3da66175598	391	hcan->Instance->FM1R &= ~(uint32_t)filternbrbitpos;
mbed_official	237:f3da66175598	392	}
mbed_official	237:f3da66175598	393	else /* CAN_FilterInitStruct->CAN_FilterMode == CAN_FilterMode_IdList */
mbed_official	237:f3da66175598	394	{
mbed_official	237:f3da66175598	395	/Identifier list mode for the filter/
mbed_official	237:f3da66175598	396	hcan->Instance->FM1R \|= (uint32_t)filternbrbitpos;
mbed_official	237:f3da66175598	397	}
mbed_official	237:f3da66175598	398
mbed_official	237:f3da66175598	399	/* Filter FIFO assignment */
mbed_official	237:f3da66175598	400	if (sFilterConfig->FilterFIFOAssignment == CAN_FILTER_FIFO0)
mbed_official	237:f3da66175598	401	{
mbed_official	237:f3da66175598	402	/* FIFO 0 assignation for the filter */
mbed_official	237:f3da66175598	403	hcan->Instance->FFA1R &= ~(uint32_t)filternbrbitpos;
mbed_official	237:f3da66175598	404	}
mbed_official	237:f3da66175598	405
mbed_official	237:f3da66175598	406	if (sFilterConfig->FilterFIFOAssignment == CAN_FILTER_FIFO1)
mbed_official	237:f3da66175598	407	{
mbed_official	237:f3da66175598	408	/* FIFO 1 assignation for the filter */
mbed_official	237:f3da66175598	409	hcan->Instance->FFA1R \|= (uint32_t)filternbrbitpos;
mbed_official	237:f3da66175598	410	}
mbed_official	237:f3da66175598	411
mbed_official	237:f3da66175598	412	/* Filter activation */
mbed_official	237:f3da66175598	413	if (sFilterConfig->FilterActivation == ENABLE)
mbed_official	237:f3da66175598	414	{
mbed_official	237:f3da66175598	415	hcan->Instance->FA1R \|= filternbrbitpos;
mbed_official	237:f3da66175598	416	}
mbed_official	237:f3da66175598	417
mbed_official	237:f3da66175598	418	/* Leave the initialisation mode for the filter */
mbed_official	237:f3da66175598	419	hcan->Instance->FMR &= ~((uint32_t)CAN_FMR_FINIT);
mbed_official	237:f3da66175598	420
mbed_official	237:f3da66175598	421	/* Return function status */
mbed_official	237:f3da66175598	422	return HAL_OK;
mbed_official	237:f3da66175598	423	}
mbed_official	237:f3da66175598	424
mbed_official	237:f3da66175598	425	/**
mbed_official	237:f3da66175598	426	* @brief Deinitializes the CANx peripheral registers to their default reset values.
mbed_official	237:f3da66175598	427	* @param hcan: pointer to a CAN_HandleTypeDef structure that contains
mbed_official	237:f3da66175598	428	* the configuration information for the specified CAN.
mbed_official	237:f3da66175598	429	* @retval HAL status
mbed_official	237:f3da66175598	430	*/
mbed_official	237:f3da66175598	431	HAL_StatusTypeDef HAL_CAN_DeInit(CAN_HandleTypeDef* hcan)
mbed_official	237:f3da66175598	432	{
mbed_official	237:f3da66175598	433	/* Check CAN handle */
mbed_official	635:ac7d6880524d	434	if(hcan == HAL_NULL)
mbed_official	237:f3da66175598	435	{
mbed_official	237:f3da66175598	436	return HAL_ERROR;
mbed_official	237:f3da66175598	437	}
mbed_official	237:f3da66175598	438
mbed_official	237:f3da66175598	439	/* Check the parameters */
mbed_official	237:f3da66175598	440	assert_param(IS_CAN_ALL_INSTANCE(hcan->Instance));
mbed_official	237:f3da66175598	441
mbed_official	237:f3da66175598	442	/* Change CAN state */
mbed_official	237:f3da66175598	443	hcan->State = HAL_CAN_STATE_BUSY;
mbed_official	237:f3da66175598	444
mbed_official	237:f3da66175598	445	/* DeInit the low level hardware */
mbed_official	237:f3da66175598	446	HAL_CAN_MspDeInit(hcan);
mbed_official	237:f3da66175598	447
mbed_official	237:f3da66175598	448	/* Change CAN state */
mbed_official	237:f3da66175598	449	hcan->State = HAL_CAN_STATE_RESET;
mbed_official	237:f3da66175598	450
mbed_official	237:f3da66175598	451	/* Release Lock */
mbed_official	237:f3da66175598	452	__HAL_UNLOCK(hcan);
mbed_official	237:f3da66175598	453
mbed_official	237:f3da66175598	454	/* Return function status */
mbed_official	237:f3da66175598	455	return HAL_OK;
mbed_official	237:f3da66175598	456	}
mbed_official	237:f3da66175598	457
mbed_official	237:f3da66175598	458	/**
mbed_official	237:f3da66175598	459	* @brief Initializes the CAN MSP.
mbed_official	237:f3da66175598	460	* @param hcan: pointer to a CAN_HandleTypeDef structure that contains
mbed_official	237:f3da66175598	461	* the configuration information for the specified CAN.
mbed_official	237:f3da66175598	462	* @retval None
mbed_official	237:f3da66175598	463	*/
mbed_official	237:f3da66175598	464	__weak void HAL_CAN_MspInit(CAN_HandleTypeDef* hcan)
mbed_official	237:f3da66175598	465	{
mbed_official	237:f3da66175598	466	/* NOTE : This function Should not be modified, when the callback is needed,
mbed_official	237:f3da66175598	467	the HAL_CAN_MspInit could be implemented in the user file
mbed_official	237:f3da66175598	468	*/
mbed_official	237:f3da66175598	469	}
mbed_official	237:f3da66175598	470
mbed_official	237:f3da66175598	471	/**
mbed_official	237:f3da66175598	472	* @brief DeInitializes the CAN MSP.
mbed_official	237:f3da66175598	473	* @param hcan: pointer to a CAN_HandleTypeDef structure that contains
mbed_official	237:f3da66175598	474	* the configuration information for the specified CAN.
mbed_official	237:f3da66175598	475	* @retval None
mbed_official	237:f3da66175598	476	*/
mbed_official	237:f3da66175598	477	__weak void HAL_CAN_MspDeInit(CAN_HandleTypeDef* hcan)
mbed_official	237:f3da66175598	478	{
mbed_official	237:f3da66175598	479	/* NOTE : This function Should not be modified, when the callback is needed,
mbed_official	237:f3da66175598	480	the HAL_CAN_MspDeInit could be implemented in the user file
mbed_official	237:f3da66175598	481	*/
mbed_official	237:f3da66175598	482	}
mbed_official	237:f3da66175598	483
mbed_official	237:f3da66175598	484	/**
mbed_official	237:f3da66175598	485	* @}
mbed_official	237:f3da66175598	486	*/
mbed_official	237:f3da66175598	487
mbed_official	375:3d36234a1087	488	/** @defgroup CAN_Exported_Functions_Group2 Input and Output operation functions
mbed_official	237:f3da66175598	489	* @brief I/O operation functions
mbed_official	237:f3da66175598	490	*
mbed_official	237:f3da66175598	491	@verbatim
mbed_official	237:f3da66175598	492	==============================================================================
mbed_official	237:f3da66175598	493	##### IO operation functions #####
mbed_official	237:f3da66175598	494	==============================================================================
mbed_official	237:f3da66175598	495	[..] This section provides functions allowing to:
mbed_official	237:f3da66175598	496	(+) Transmit a CAN frame message.
mbed_official	237:f3da66175598	497	(+) Receive a CAN frame message.
mbed_official	237:f3da66175598	498	(+) Enter CAN peripheral in sleep mode.
mbed_official	237:f3da66175598	499	(+) Wake up the CAN peripheral from sleep mode.
mbed_official	237:f3da66175598	500
mbed_official	237:f3da66175598	501	@endverbatim
mbed_official	237:f3da66175598	502	* @{
mbed_official	237:f3da66175598	503	*/
mbed_official	237:f3da66175598	504
mbed_official	237:f3da66175598	505	/**
mbed_official	237:f3da66175598	506	* @brief Initiates and transmits a CAN frame message.
mbed_official	237:f3da66175598	507	* @param hcan: pointer to a CAN_HandleTypeDef structure that contains
mbed_official	237:f3da66175598	508	* the configuration information for the specified CAN.
mbed_official	237:f3da66175598	509	* @param Timeout: Timeout duration.
mbed_official	237:f3da66175598	510	* @retval HAL status
mbed_official	237:f3da66175598	511	*/
mbed_official	237:f3da66175598	512	HAL_StatusTypeDef HAL_CAN_Transmit(CAN_HandleTypeDef* hcan, uint32_t Timeout)
mbed_official	237:f3da66175598	513	{
mbed_official	237:f3da66175598	514	uint32_t transmitmailbox = CAN_TXSTATUS_NOMAILBOX;
mbed_official	237:f3da66175598	515	uint32_t tickstart = 0;
mbed_official	237:f3da66175598	516
mbed_official	237:f3da66175598	517	/* Check the parameters */
mbed_official	237:f3da66175598	518	assert_param(IS_CAN_IDTYPE(hcan->pTxMsg->IDE));
mbed_official	237:f3da66175598	519	assert_param(IS_CAN_RTR(hcan->pTxMsg->RTR));
mbed_official	237:f3da66175598	520	assert_param(IS_CAN_DLC(hcan->pTxMsg->DLC));
mbed_official	237:f3da66175598	521
mbed_official	237:f3da66175598	522	/* Process locked */
mbed_official	237:f3da66175598	523	__HAL_LOCK(hcan);
mbed_official	237:f3da66175598	524
mbed_official	237:f3da66175598	525	if(hcan->State == HAL_CAN_STATE_BUSY_RX)
mbed_official	237:f3da66175598	526	{
mbed_official	237:f3da66175598	527	/* Change CAN state */
mbed_official	237:f3da66175598	528	hcan->State = HAL_CAN_STATE_BUSY_TX_RX;
mbed_official	237:f3da66175598	529	}
mbed_official	237:f3da66175598	530	else
mbed_official	237:f3da66175598	531	{
mbed_official	237:f3da66175598	532	/* Change CAN state */
mbed_official	237:f3da66175598	533	hcan->State = HAL_CAN_STATE_BUSY_TX;
mbed_official	237:f3da66175598	534	}
mbed_official	237:f3da66175598	535
mbed_official	237:f3da66175598	536	/* Select one empty transmit mailbox */
mbed_official	237:f3da66175598	537	if ((hcan->Instance->TSR&CAN_TSR_TME0) == CAN_TSR_TME0)
mbed_official	237:f3da66175598	538	{
mbed_official	237:f3da66175598	539	transmitmailbox = 0;
mbed_official	237:f3da66175598	540	}
mbed_official	237:f3da66175598	541	else if ((hcan->Instance->TSR&CAN_TSR_TME1) == CAN_TSR_TME1)
mbed_official	237:f3da66175598	542	{
mbed_official	237:f3da66175598	543	transmitmailbox = 1;
mbed_official	237:f3da66175598	544	}
mbed_official	237:f3da66175598	545	else if ((hcan->Instance->TSR&CAN_TSR_TME2) == CAN_TSR_TME2)
mbed_official	237:f3da66175598	546	{
mbed_official	237:f3da66175598	547	transmitmailbox = 2;
mbed_official	237:f3da66175598	548	}
mbed_official	237:f3da66175598	549
mbed_official	237:f3da66175598	550	if (transmitmailbox != CAN_TXSTATUS_NOMAILBOX)
mbed_official	237:f3da66175598	551	{
mbed_official	237:f3da66175598	552	/* Set up the Id */
mbed_official	237:f3da66175598	553	hcan->Instance->sTxMailBox[transmitmailbox].TIR &= CAN_TI0R_TXRQ;
mbed_official	237:f3da66175598	554	if (hcan->pTxMsg->IDE == CAN_ID_STD)
mbed_official	237:f3da66175598	555	{
mbed_official	237:f3da66175598	556	assert_param(IS_CAN_STDID(hcan->pTxMsg->StdId));
mbed_official	237:f3da66175598	557	hcan->Instance->sTxMailBox[transmitmailbox].TIR \|= ((hcan->pTxMsg->StdId << 21) \| \
mbed_official	237:f3da66175598	558	hcan->pTxMsg->RTR);
mbed_official	237:f3da66175598	559	}
mbed_official	237:f3da66175598	560	else
mbed_official	237:f3da66175598	561	{
mbed_official	237:f3da66175598	562	assert_param(IS_CAN_EXTID(hcan->pTxMsg->ExtId));
mbed_official	237:f3da66175598	563	hcan->Instance->sTxMailBox[transmitmailbox].TIR \|= ((hcan->pTxMsg->ExtId << 3) \| \
mbed_official	237:f3da66175598	564	hcan->pTxMsg->IDE \| \
mbed_official	237:f3da66175598	565	hcan->pTxMsg->RTR);
mbed_official	237:f3da66175598	566	}
mbed_official	237:f3da66175598	567
mbed_official	237:f3da66175598	568	/* Set up the DLC */
mbed_official	237:f3da66175598	569	hcan->pTxMsg->DLC &= (uint8_t)0x0000000F;
mbed_official	237:f3da66175598	570	hcan->Instance->sTxMailBox[transmitmailbox].TDTR &= (uint32_t)0xFFFFFFF0;
mbed_official	237:f3da66175598	571	hcan->Instance->sTxMailBox[transmitmailbox].TDTR \|= hcan->pTxMsg->DLC;
mbed_official	237:f3da66175598	572
mbed_official	237:f3da66175598	573	/* Set up the data field */
mbed_official	237:f3da66175598	574	hcan->Instance->sTxMailBox[transmitmailbox].TDLR = (((uint32_t)hcan->pTxMsg->Data[3] << 24) \|
mbed_official	237:f3da66175598	575	((uint32_t)hcan->pTxMsg->Data[2] << 16) \|
mbed_official	237:f3da66175598	576	((uint32_t)hcan->pTxMsg->Data[1] << 8) \|
mbed_official	237:f3da66175598	577	((uint32_t)hcan->pTxMsg->Data[0]));
mbed_official	237:f3da66175598	578	hcan->Instance->sTxMailBox[transmitmailbox].TDHR = (((uint32_t)hcan->pTxMsg->Data[7] << 24) \|
mbed_official	237:f3da66175598	579	((uint32_t)hcan->pTxMsg->Data[6] << 16) \|
mbed_official	237:f3da66175598	580	((uint32_t)hcan->pTxMsg->Data[5] << 8) \|
mbed_official	237:f3da66175598	581	((uint32_t)hcan->pTxMsg->Data[4]));
mbed_official	237:f3da66175598	582	/* Request transmission */
mbed_official	237:f3da66175598	583	hcan->Instance->sTxMailBox[transmitmailbox].TIR \|= CAN_TI0R_TXRQ;
mbed_official	237:f3da66175598	584
mbed_official	237:f3da66175598	585	/* Get timeout */
mbed_official	237:f3da66175598	586	tickstart = HAL_GetTick();
mbed_official	237:f3da66175598	587
mbed_official	237:f3da66175598	588	/* Check End of transmission flag */
mbed_official	237:f3da66175598	589	while(!(__HAL_CAN_TRANSMIT_STATUS(hcan, transmitmailbox)))
mbed_official	237:f3da66175598	590	{
mbed_official	237:f3da66175598	591	/* Check for the Timeout */
mbed_official	237:f3da66175598	592	if(Timeout != HAL_MAX_DELAY)
mbed_official	237:f3da66175598	593	{
mbed_official	237:f3da66175598	594	if((Timeout == 0) \|\| ((HAL_GetTick()-tickstart) > Timeout))
mbed_official	237:f3da66175598	595	{
mbed_official	237:f3da66175598	596	hcan->State = HAL_CAN_STATE_TIMEOUT;
mbed_official	237:f3da66175598	597	/* Process unlocked */
mbed_official	237:f3da66175598	598	__HAL_UNLOCK(hcan);
mbed_official	237:f3da66175598	599	return HAL_TIMEOUT;
mbed_official	237:f3da66175598	600	}
mbed_official	237:f3da66175598	601	}
mbed_official	237:f3da66175598	602	}
mbed_official	237:f3da66175598	603	if(hcan->State == HAL_CAN_STATE_BUSY_TX_RX)
mbed_official	237:f3da66175598	604	{
mbed_official	237:f3da66175598	605	/* Change CAN state */
mbed_official	237:f3da66175598	606	hcan->State = HAL_CAN_STATE_BUSY_RX;
mbed_official	237:f3da66175598	607	}
mbed_official	237:f3da66175598	608	else
mbed_official	237:f3da66175598	609	{
mbed_official	237:f3da66175598	610	/* Change CAN state */
mbed_official	237:f3da66175598	611	hcan->State = HAL_CAN_STATE_READY;
mbed_official	237:f3da66175598	612	}
mbed_official	237:f3da66175598	613
mbed_official	237:f3da66175598	614	/* Process unlocked */
mbed_official	237:f3da66175598	615	__HAL_UNLOCK(hcan);
mbed_official	237:f3da66175598	616
mbed_official	237:f3da66175598	617	/* Return function status */
mbed_official	237:f3da66175598	618	return HAL_OK;
mbed_official	237:f3da66175598	619	}
mbed_official	237:f3da66175598	620	else
mbed_official	237:f3da66175598	621	{
mbed_official	237:f3da66175598	622	/* Change CAN state */
mbed_official	237:f3da66175598	623	hcan->State = HAL_CAN_STATE_ERROR;
mbed_official	237:f3da66175598	624
mbed_official	237:f3da66175598	625	/* Process unlocked */
mbed_official	237:f3da66175598	626	__HAL_UNLOCK(hcan);
mbed_official	237:f3da66175598	627
mbed_official	237:f3da66175598	628	/* Return function status */
mbed_official	237:f3da66175598	629	return HAL_ERROR;
mbed_official	237:f3da66175598	630	}
mbed_official	237:f3da66175598	631	}
mbed_official	237:f3da66175598	632
mbed_official	237:f3da66175598	633	/**
mbed_official	237:f3da66175598	634	* @brief Initiates and transmits a CAN frame message.
mbed_official	237:f3da66175598	635	* @param hcan: pointer to a CAN_HandleTypeDef structure that contains
mbed_official	237:f3da66175598	636	* the configuration information for the specified CAN.
mbed_official	237:f3da66175598	637	* @retval HAL status
mbed_official	237:f3da66175598	638	*/
mbed_official	237:f3da66175598	639	HAL_StatusTypeDef HAL_CAN_Transmit_IT(CAN_HandleTypeDef* hcan)
mbed_official	237:f3da66175598	640	{
mbed_official	237:f3da66175598	641	uint32_t transmitmailbox = CAN_TXSTATUS_NOMAILBOX;
mbed_official	237:f3da66175598	642
mbed_official	237:f3da66175598	643	/* Check the parameters */
mbed_official	237:f3da66175598	644	assert_param(IS_CAN_IDTYPE(hcan->pTxMsg->IDE));
mbed_official	237:f3da66175598	645	assert_param(IS_CAN_RTR(hcan->pTxMsg->RTR));
mbed_official	237:f3da66175598	646	assert_param(IS_CAN_DLC(hcan->pTxMsg->DLC));
mbed_official	237:f3da66175598	647
mbed_official	237:f3da66175598	648	if((hcan->State == HAL_CAN_STATE_READY) \|\| (hcan->State == HAL_CAN_STATE_BUSY_RX))
mbed_official	237:f3da66175598	649	{
mbed_official	237:f3da66175598	650	/* Process Locked */
mbed_official	237:f3da66175598	651	__HAL_LOCK(hcan);
mbed_official	237:f3da66175598	652
mbed_official	237:f3da66175598	653	/* Select one empty transmit mailbox */
mbed_official	237:f3da66175598	654	if((hcan->Instance->TSR&CAN_TSR_TME0) == CAN_TSR_TME0)
mbed_official	237:f3da66175598	655	{
mbed_official	237:f3da66175598	656	transmitmailbox = 0;
mbed_official	237:f3da66175598	657	}
mbed_official	237:f3da66175598	658	else if((hcan->Instance->TSR&CAN_TSR_TME1) == CAN_TSR_TME1)
mbed_official	237:f3da66175598	659	{
mbed_official	237:f3da66175598	660	transmitmailbox = 1;
mbed_official	237:f3da66175598	661	}
mbed_official	237:f3da66175598	662	else if((hcan->Instance->TSR&CAN_TSR_TME2) == CAN_TSR_TME2)
mbed_official	237:f3da66175598	663	{
mbed_official	237:f3da66175598	664	transmitmailbox = 2;
mbed_official	237:f3da66175598	665	}
mbed_official	237:f3da66175598	666
mbed_official	237:f3da66175598	667	if(transmitmailbox != CAN_TXSTATUS_NOMAILBOX)
mbed_official	237:f3da66175598	668	{
mbed_official	237:f3da66175598	669	/* Set up the Id */
mbed_official	237:f3da66175598	670	hcan->Instance->sTxMailBox[transmitmailbox].TIR &= CAN_TI0R_TXRQ;
mbed_official	237:f3da66175598	671	if(hcan->pTxMsg->IDE == CAN_ID_STD)
mbed_official	237:f3da66175598	672	{
mbed_official	237:f3da66175598	673	assert_param(IS_CAN_STDID(hcan->pTxMsg->StdId));
mbed_official	237:f3da66175598	674	hcan->Instance->sTxMailBox[transmitmailbox].TIR \|= ((hcan->pTxMsg->StdId << 21) \| \
mbed_official	237:f3da66175598	675	hcan->pTxMsg->RTR);
mbed_official	237:f3da66175598	676	}
mbed_official	237:f3da66175598	677	else
mbed_official	237:f3da66175598	678	{
mbed_official	237:f3da66175598	679	assert_param(IS_CAN_EXTID(hcan->pTxMsg->ExtId));
mbed_official	237:f3da66175598	680	hcan->Instance->sTxMailBox[transmitmailbox].TIR \|= ((hcan->pTxMsg->ExtId << 3) \| \
mbed_official	237:f3da66175598	681	hcan->pTxMsg->IDE \| \
mbed_official	237:f3da66175598	682	hcan->pTxMsg->RTR);
mbed_official	237:f3da66175598	683	}
mbed_official	237:f3da66175598	684
mbed_official	237:f3da66175598	685	/* Set up the DLC */
mbed_official	237:f3da66175598	686	hcan->pTxMsg->DLC &= (uint8_t)0x0000000F;
mbed_official	237:f3da66175598	687	hcan->Instance->sTxMailBox[transmitmailbox].TDTR &= (uint32_t)0xFFFFFFF0;
mbed_official	237:f3da66175598	688	hcan->Instance->sTxMailBox[transmitmailbox].TDTR \|= hcan->pTxMsg->DLC;
mbed_official	237:f3da66175598	689
mbed_official	237:f3da66175598	690	/* Set up the data field */
mbed_official	237:f3da66175598	691	hcan->Instance->sTxMailBox[transmitmailbox].TDLR = (((uint32_t)hcan->pTxMsg->Data[3] << 24) \|
mbed_official	237:f3da66175598	692	((uint32_t)hcan->pTxMsg->Data[2] << 16) \|
mbed_official	237:f3da66175598	693	((uint32_t)hcan->pTxMsg->Data[1] << 8) \|
mbed_official	237:f3da66175598	694	((uint32_t)hcan->pTxMsg->Data[0]));
mbed_official	237:f3da66175598	695	hcan->Instance->sTxMailBox[transmitmailbox].TDHR = (((uint32_t)hcan->pTxMsg->Data[7] << 24) \|
mbed_official	237:f3da66175598	696	((uint32_t)hcan->pTxMsg->Data[6] << 16) \|
mbed_official	237:f3da66175598	697	((uint32_t)hcan->pTxMsg->Data[5] << 8) \|
mbed_official	237:f3da66175598	698	((uint32_t)hcan->pTxMsg->Data[4]));
mbed_official	237:f3da66175598	699
mbed_official	237:f3da66175598	700	if(hcan->State == HAL_CAN_STATE_BUSY_RX)
mbed_official	237:f3da66175598	701	{
mbed_official	237:f3da66175598	702	/* Change CAN state */
mbed_official	237:f3da66175598	703	hcan->State = HAL_CAN_STATE_BUSY_TX_RX;
mbed_official	237:f3da66175598	704	}
mbed_official	237:f3da66175598	705	else
mbed_official	237:f3da66175598	706	{
mbed_official	237:f3da66175598	707	/* Change CAN state */
mbed_official	237:f3da66175598	708	hcan->State = HAL_CAN_STATE_BUSY_TX;
mbed_official	237:f3da66175598	709	}
mbed_official	237:f3da66175598	710
mbed_official	237:f3da66175598	711	/* Set CAN error code to none */
mbed_official	237:f3da66175598	712	hcan->ErrorCode = HAL_CAN_ERROR_NONE;
mbed_official	237:f3da66175598	713
mbed_official	237:f3da66175598	714	/* Process Unlocked */
mbed_official	237:f3da66175598	715	__HAL_UNLOCK(hcan);
mbed_official	237:f3da66175598	716
mbed_official	237:f3da66175598	717	/* Enable Error warning Interrupt */
mbed_official	237:f3da66175598	718	__HAL_CAN_ENABLE_IT(hcan, CAN_IT_EWG);
mbed_official	237:f3da66175598	719
mbed_official	237:f3da66175598	720	/* Enable Error passive Interrupt */
mbed_official	237:f3da66175598	721	__HAL_CAN_ENABLE_IT(hcan, CAN_IT_EPV);
mbed_official	237:f3da66175598	722
mbed_official	237:f3da66175598	723	/* Enable Bus-off Interrupt */
mbed_official	237:f3da66175598	724	__HAL_CAN_ENABLE_IT(hcan, CAN_IT_BOF);
mbed_official	237:f3da66175598	725
mbed_official	237:f3da66175598	726	/* Enable Last error code Interrupt */
mbed_official	237:f3da66175598	727	__HAL_CAN_ENABLE_IT(hcan, CAN_IT_LEC);
mbed_official	237:f3da66175598	728
mbed_official	237:f3da66175598	729	/* Enable Error Interrupt */
mbed_official	237:f3da66175598	730	__HAL_CAN_ENABLE_IT(hcan, CAN_IT_ERR);
mbed_official	237:f3da66175598	731
mbed_official	237:f3da66175598	732	/* Enable Transmit mailbox empty Interrupt */
mbed_official	237:f3da66175598	733	__HAL_CAN_ENABLE_IT(hcan, CAN_IT_TME);
mbed_official	237:f3da66175598	734
mbed_official	237:f3da66175598	735	/* Request transmission */
mbed_official	237:f3da66175598	736	hcan->Instance->sTxMailBox[transmitmailbox].TIR \|= CAN_TI0R_TXRQ;
mbed_official	237:f3da66175598	737	}
mbed_official	237:f3da66175598	738	}
mbed_official	237:f3da66175598	739	else
mbed_official	237:f3da66175598	740	{
mbed_official	237:f3da66175598	741	return HAL_BUSY;
mbed_official	237:f3da66175598	742	}
mbed_official	237:f3da66175598	743
mbed_official	237:f3da66175598	744	return HAL_OK;
mbed_official	237:f3da66175598	745	}
mbed_official	237:f3da66175598	746
mbed_official	237:f3da66175598	747	/**
mbed_official	237:f3da66175598	748	* @brief Receives a correct CAN frame.
mbed_official	237:f3da66175598	749	* @param hcan: pointer to a CAN_HandleTypeDef structure that contains
mbed_official	237:f3da66175598	750	* the configuration information for the specified CAN.
mbed_official	237:f3da66175598	751	* @param FIFONumber: FIFO number.
mbed_official	237:f3da66175598	752	* @param Timeout: Timeout duration.
mbed_official	237:f3da66175598	753	* @retval HAL status
mbed_official	237:f3da66175598	754	* @retval None
mbed_official	237:f3da66175598	755	*/
mbed_official	237:f3da66175598	756	HAL_StatusTypeDef HAL_CAN_Receive(CAN_HandleTypeDef* hcan, uint8_t FIFONumber, uint32_t Timeout)
mbed_official	237:f3da66175598	757	{
mbed_official	237:f3da66175598	758	uint32_t tickstart = 0;
mbed_official	237:f3da66175598	759
mbed_official	237:f3da66175598	760	/* Check the parameters */
mbed_official	237:f3da66175598	761	assert_param(IS_CAN_FIFO(FIFONumber));
mbed_official	237:f3da66175598	762
mbed_official	237:f3da66175598	763	/* Process locked */
mbed_official	237:f3da66175598	764	__HAL_LOCK(hcan);
mbed_official	237:f3da66175598	765
mbed_official	237:f3da66175598	766	if(hcan->State == HAL_CAN_STATE_BUSY_TX)
mbed_official	237:f3da66175598	767	{
mbed_official	237:f3da66175598	768	/* Change CAN state */
mbed_official	237:f3da66175598	769	hcan->State = HAL_CAN_STATE_BUSY_TX_RX;
mbed_official	237:f3da66175598	770	}
mbed_official	237:f3da66175598	771	else
mbed_official	237:f3da66175598	772	{
mbed_official	237:f3da66175598	773	/* Change CAN state */
mbed_official	237:f3da66175598	774	hcan->State = HAL_CAN_STATE_BUSY_RX;
mbed_official	237:f3da66175598	775	}
mbed_official	237:f3da66175598	776
mbed_official	237:f3da66175598	777	/* Get timeout */
mbed_official	237:f3da66175598	778	tickstart = HAL_GetTick();
mbed_official	237:f3da66175598	779
mbed_official	237:f3da66175598	780	/* Check pending message */
mbed_official	237:f3da66175598	781	while(__HAL_CAN_MSG_PENDING(hcan, FIFONumber) == 0)
mbed_official	237:f3da66175598	782	{
mbed_official	237:f3da66175598	783	/* Check for the Timeout */
mbed_official	237:f3da66175598	784	if(Timeout != HAL_MAX_DELAY)
mbed_official	237:f3da66175598	785	{
mbed_official	237:f3da66175598	786	if((Timeout == 0) \|\| ((HAL_GetTick()-tickstart) > Timeout))
mbed_official	237:f3da66175598	787	{
mbed_official	237:f3da66175598	788	hcan->State = HAL_CAN_STATE_TIMEOUT;
mbed_official	237:f3da66175598	789	/* Process unlocked */
mbed_official	237:f3da66175598	790	__HAL_UNLOCK(hcan);
mbed_official	237:f3da66175598	791	return HAL_TIMEOUT;
mbed_official	237:f3da66175598	792	}
mbed_official	237:f3da66175598	793	}
mbed_official	237:f3da66175598	794	}
mbed_official	237:f3da66175598	795
mbed_official	237:f3da66175598	796	/* Get the Id */
mbed_official	237:f3da66175598	797	hcan->pRxMsg->IDE = (uint8_t)0x04 & hcan->Instance->sFIFOMailBox[FIFONumber].RIR;
mbed_official	237:f3da66175598	798	if (hcan->pRxMsg->IDE == CAN_ID_STD)
mbed_official	237:f3da66175598	799	{
mbed_official	237:f3da66175598	800	hcan->pRxMsg->StdId = (uint32_t)0x000007FF & (hcan->Instance->sFIFOMailBox[FIFONumber].RIR >> 21);
mbed_official	237:f3da66175598	801	}
mbed_official	237:f3da66175598	802	else
mbed_official	237:f3da66175598	803	{
mbed_official	237:f3da66175598	804	hcan->pRxMsg->ExtId = (uint32_t)0x1FFFFFFF & (hcan->Instance->sFIFOMailBox[FIFONumber].RIR >> 3);
mbed_official	237:f3da66175598	805	}
mbed_official	237:f3da66175598	806
mbed_official	237:f3da66175598	807	hcan->pRxMsg->RTR = (uint8_t)0x02 & hcan->Instance->sFIFOMailBox[FIFONumber].RIR;
mbed_official	237:f3da66175598	808	/* Get the DLC */
mbed_official	237:f3da66175598	809	hcan->pRxMsg->DLC = (uint8_t)0x0F & hcan->Instance->sFIFOMailBox[FIFONumber].RDTR;
mbed_official	237:f3da66175598	810	/* Get the FMI */
mbed_official	237:f3da66175598	811	hcan->pRxMsg->FMI = (uint8_t)0xFF & (hcan->Instance->sFIFOMailBox[FIFONumber].RDTR >> 8);
mbed_official	237:f3da66175598	812	/* Get the data field */
mbed_official	237:f3da66175598	813	hcan->pRxMsg->Data[0] = (uint8_t)0xFF & hcan->Instance->sFIFOMailBox[FIFONumber].RDLR;
mbed_official	237:f3da66175598	814	hcan->pRxMsg->Data[1] = (uint8_t)0xFF & (hcan->Instance->sFIFOMailBox[FIFONumber].RDLR >> 8);
mbed_official	237:f3da66175598	815	hcan->pRxMsg->Data[2] = (uint8_t)0xFF & (hcan->Instance->sFIFOMailBox[FIFONumber].RDLR >> 16);
mbed_official	237:f3da66175598	816	hcan->pRxMsg->Data[3] = (uint8_t)0xFF & (hcan->Instance->sFIFOMailBox[FIFONumber].RDLR >> 24);
mbed_official	237:f3da66175598	817	hcan->pRxMsg->Data[4] = (uint8_t)0xFF & hcan->Instance->sFIFOMailBox[FIFONumber].RDHR;
mbed_official	237:f3da66175598	818	hcan->pRxMsg->Data[5] = (uint8_t)0xFF & (hcan->Instance->sFIFOMailBox[FIFONumber].RDHR >> 8);
mbed_official	237:f3da66175598	819	hcan->pRxMsg->Data[6] = (uint8_t)0xFF & (hcan->Instance->sFIFOMailBox[FIFONumber].RDHR >> 16);
mbed_official	237:f3da66175598	820	hcan->pRxMsg->Data[7] = (uint8_t)0xFF & (hcan->Instance->sFIFOMailBox[FIFONumber].RDHR >> 24);
mbed_official	237:f3da66175598	821
mbed_official	237:f3da66175598	822	/* Release the FIFO */
mbed_official	237:f3da66175598	823	if(FIFONumber == CAN_FIFO0)
mbed_official	237:f3da66175598	824	{
mbed_official	237:f3da66175598	825	/* Release FIFO0 */
mbed_official	237:f3da66175598	826	__HAL_CAN_FIFO_RELEASE(hcan, CAN_FIFO0);
mbed_official	237:f3da66175598	827	}
mbed_official	237:f3da66175598	828	else /* FIFONumber == CAN_FIFO1 */
mbed_official	237:f3da66175598	829	{
mbed_official	237:f3da66175598	830	/* Release FIFO1 */
mbed_official	237:f3da66175598	831	__HAL_CAN_FIFO_RELEASE(hcan, CAN_FIFO1);
mbed_official	237:f3da66175598	832	}
mbed_official	237:f3da66175598	833
mbed_official	237:f3da66175598	834	if(hcan->State == HAL_CAN_STATE_BUSY_TX_RX)
mbed_official	237:f3da66175598	835	{
mbed_official	237:f3da66175598	836	/* Change CAN state */
mbed_official	237:f3da66175598	837	hcan->State = HAL_CAN_STATE_BUSY_TX;
mbed_official	237:f3da66175598	838	}
mbed_official	237:f3da66175598	839	else
mbed_official	237:f3da66175598	840	{
mbed_official	237:f3da66175598	841	/* Change CAN state */
mbed_official	237:f3da66175598	842	hcan->State = HAL_CAN_STATE_READY;
mbed_official	237:f3da66175598	843	}
mbed_official	237:f3da66175598	844
mbed_official	237:f3da66175598	845	/* Process unlocked */
mbed_official	237:f3da66175598	846	__HAL_UNLOCK(hcan);
mbed_official	237:f3da66175598	847
mbed_official	237:f3da66175598	848	/* Return function status */
mbed_official	237:f3da66175598	849	return HAL_OK;
mbed_official	237:f3da66175598	850	}
mbed_official	237:f3da66175598	851
mbed_official	237:f3da66175598	852	/**
mbed_official	237:f3da66175598	853	* @brief Receives a correct CAN frame.
mbed_official	237:f3da66175598	854	* @param hcan: pointer to a CAN_HandleTypeDef structure that contains
mbed_official	237:f3da66175598	855	* the configuration information for the specified CAN.
mbed_official	237:f3da66175598	856	* @param FIFONumber: FIFO number.
mbed_official	237:f3da66175598	857	* @retval HAL status
mbed_official	237:f3da66175598	858	* @retval None
mbed_official	237:f3da66175598	859	*/
mbed_official	237:f3da66175598	860	HAL_StatusTypeDef HAL_CAN_Receive_IT(CAN_HandleTypeDef* hcan, uint8_t FIFONumber)
mbed_official	237:f3da66175598	861	{
mbed_official	237:f3da66175598	862	/* Check the parameters */
mbed_official	237:f3da66175598	863	assert_param(IS_CAN_FIFO(FIFONumber));
mbed_official	237:f3da66175598	864
mbed_official	237:f3da66175598	865	if((hcan->State == HAL_CAN_STATE_READY) \|\| (hcan->State == HAL_CAN_STATE_BUSY_TX))
mbed_official	237:f3da66175598	866	{
mbed_official	237:f3da66175598	867	/* Process locked */
mbed_official	237:f3da66175598	868	__HAL_LOCK(hcan);
mbed_official	237:f3da66175598	869
mbed_official	237:f3da66175598	870	if(hcan->State == HAL_CAN_STATE_BUSY_TX)
mbed_official	237:f3da66175598	871	{
mbed_official	237:f3da66175598	872	/* Change CAN state */
mbed_official	237:f3da66175598	873	hcan->State = HAL_CAN_STATE_BUSY_TX_RX;
mbed_official	237:f3da66175598	874	}
mbed_official	237:f3da66175598	875	else
mbed_official	237:f3da66175598	876	{
mbed_official	237:f3da66175598	877	/* Change CAN state */
mbed_official	237:f3da66175598	878	hcan->State = HAL_CAN_STATE_BUSY_RX;
mbed_official	237:f3da66175598	879	}
mbed_official	237:f3da66175598	880
mbed_official	237:f3da66175598	881	/* Set CAN error code to none */
mbed_official	237:f3da66175598	882	hcan->ErrorCode = HAL_CAN_ERROR_NONE;
mbed_official	237:f3da66175598	883
mbed_official	237:f3da66175598	884	/* Enable Error warning Interrupt */
mbed_official	237:f3da66175598	885	__HAL_CAN_ENABLE_IT(hcan, CAN_IT_EWG);
mbed_official	237:f3da66175598	886
mbed_official	237:f3da66175598	887	/* Enable Error passive Interrupt */
mbed_official	237:f3da66175598	888	__HAL_CAN_ENABLE_IT(hcan, CAN_IT_EPV);
mbed_official	237:f3da66175598	889
mbed_official	237:f3da66175598	890	/* Enable Bus-off Interrupt */
mbed_official	237:f3da66175598	891	__HAL_CAN_ENABLE_IT(hcan, CAN_IT_BOF);
mbed_official	237:f3da66175598	892
mbed_official	237:f3da66175598	893	/* Enable Last error code Interrupt */
mbed_official	237:f3da66175598	894	__HAL_CAN_ENABLE_IT(hcan, CAN_IT_LEC);
mbed_official	237:f3da66175598	895
mbed_official	237:f3da66175598	896	/* Enable Error Interrupt */
mbed_official	237:f3da66175598	897	__HAL_CAN_ENABLE_IT(hcan, CAN_IT_ERR);
mbed_official	237:f3da66175598	898
mbed_official	237:f3da66175598	899	/* Process unlocked */
mbed_official	237:f3da66175598	900	__HAL_UNLOCK(hcan);
mbed_official	237:f3da66175598	901
mbed_official	237:f3da66175598	902	if(FIFONumber == CAN_FIFO0)
mbed_official	237:f3da66175598	903	{
mbed_official	237:f3da66175598	904	/* Enable FIFO 0 message pending Interrupt */
mbed_official	237:f3da66175598	905	__HAL_CAN_ENABLE_IT(hcan, CAN_IT_FMP0);
mbed_official	237:f3da66175598	906	}
mbed_official	237:f3da66175598	907	else
mbed_official	237:f3da66175598	908	{
mbed_official	237:f3da66175598	909	/* Enable FIFO 1 message pending Interrupt */
mbed_official	237:f3da66175598	910	__HAL_CAN_ENABLE_IT(hcan, CAN_IT_FMP1);
mbed_official	237:f3da66175598	911	}
mbed_official	237:f3da66175598	912
mbed_official	237:f3da66175598	913	}
mbed_official	237:f3da66175598	914	else
mbed_official	237:f3da66175598	915	{
mbed_official	237:f3da66175598	916	return HAL_BUSY;
mbed_official	237:f3da66175598	917	}
mbed_official	237:f3da66175598	918
mbed_official	237:f3da66175598	919	/* Return function status */
mbed_official	237:f3da66175598	920	return HAL_OK;
mbed_official	237:f3da66175598	921	}
mbed_official	237:f3da66175598	922
mbed_official	237:f3da66175598	923	/**
mbed_official	237:f3da66175598	924	* @brief Enters the Sleep (low power) mode.
mbed_official	237:f3da66175598	925	* @param hcan: pointer to a CAN_HandleTypeDef structure that contains
mbed_official	237:f3da66175598	926	* the configuration information for the specified CAN.
mbed_official	237:f3da66175598	927	* @retval HAL status.
mbed_official	237:f3da66175598	928	*/
mbed_official	237:f3da66175598	929	HAL_StatusTypeDef HAL_CAN_Sleep(CAN_HandleTypeDef* hcan)
mbed_official	237:f3da66175598	930	{
mbed_official	237:f3da66175598	931	uint32_t tickstart = 0;
mbed_official	237:f3da66175598	932
mbed_official	237:f3da66175598	933	/* Process locked */
mbed_official	237:f3da66175598	934	__HAL_LOCK(hcan);
mbed_official	237:f3da66175598	935
mbed_official	237:f3da66175598	936	/* Change CAN state */
mbed_official	237:f3da66175598	937	hcan->State = HAL_CAN_STATE_BUSY;
mbed_official	237:f3da66175598	938
mbed_official	237:f3da66175598	939	/* Request Sleep mode */
mbed_official	237:f3da66175598	940	hcan->Instance->MCR = (((hcan->Instance->MCR) & (uint32_t)(~(uint32_t)CAN_MCR_INRQ)) \| CAN_MCR_SLEEP);
mbed_official	237:f3da66175598	941
mbed_official	237:f3da66175598	942	/* Sleep mode status */
mbed_official	237:f3da66175598	943	if ((hcan->Instance->MSR & (CAN_MSR_SLAK\|CAN_MSR_INAK)) != CAN_MSR_SLAK)
mbed_official	237:f3da66175598	944	{
mbed_official	237:f3da66175598	945	/* Process unlocked */
mbed_official	237:f3da66175598	946	__HAL_UNLOCK(hcan);
mbed_official	237:f3da66175598	947
mbed_official	237:f3da66175598	948	/* Return function status */
mbed_official	237:f3da66175598	949	return HAL_ERROR;
mbed_official	237:f3da66175598	950	}
mbed_official	237:f3da66175598	951
mbed_official	237:f3da66175598	952	/* Get timeout */
mbed_official	237:f3da66175598	953	tickstart = HAL_GetTick();
mbed_official	237:f3da66175598	954
mbed_official	237:f3da66175598	955	/* Wait the acknowledge */
mbed_official	237:f3da66175598	956	while((hcan->Instance->MSR & (CAN_MSR_SLAK\|CAN_MSR_INAK)) != CAN_MSR_SLAK)
mbed_official	237:f3da66175598	957	{
mbed_official	237:f3da66175598	958	if((HAL_GetTick()-tickstart) > 10)
mbed_official	237:f3da66175598	959	{
mbed_official	237:f3da66175598	960	hcan->State = HAL_CAN_STATE_TIMEOUT;
mbed_official	237:f3da66175598	961	/* Process unlocked */
mbed_official	237:f3da66175598	962	__HAL_UNLOCK(hcan);
mbed_official	237:f3da66175598	963	return HAL_TIMEOUT;
mbed_official	237:f3da66175598	964	}
mbed_official	237:f3da66175598	965	}
mbed_official	237:f3da66175598	966
mbed_official	237:f3da66175598	967	/* Change CAN state */
mbed_official	237:f3da66175598	968	hcan->State = HAL_CAN_STATE_READY;
mbed_official	237:f3da66175598	969
mbed_official	237:f3da66175598	970	/* Process unlocked */
mbed_official	237:f3da66175598	971	__HAL_UNLOCK(hcan);
mbed_official	237:f3da66175598	972
mbed_official	237:f3da66175598	973	/* Return function status */
mbed_official	237:f3da66175598	974	return HAL_OK;
mbed_official	237:f3da66175598	975	}
mbed_official	237:f3da66175598	976
mbed_official	237:f3da66175598	977	/**
mbed_official	237:f3da66175598	978	* @brief Wakes up the CAN peripheral from sleep mode, after that the CAN peripheral
mbed_official	237:f3da66175598	979	* is in the normal mode.
mbed_official	237:f3da66175598	980	* @param hcan: pointer to a CAN_HandleTypeDef structure that contains
mbed_official	237:f3da66175598	981	* the configuration information for the specified CAN.
mbed_official	237:f3da66175598	982	* @retval HAL status.
mbed_official	237:f3da66175598	983	*/
mbed_official	237:f3da66175598	984	HAL_StatusTypeDef HAL_CAN_WakeUp(CAN_HandleTypeDef* hcan)
mbed_official	237:f3da66175598	985	{
mbed_official	237:f3da66175598	986	uint32_t tickstart = 0;
mbed_official	237:f3da66175598	987
mbed_official	237:f3da66175598	988	/* Process locked */
mbed_official	237:f3da66175598	989	__HAL_LOCK(hcan);
mbed_official	237:f3da66175598	990
mbed_official	237:f3da66175598	991	/* Change CAN state */
mbed_official	237:f3da66175598	992	hcan->State = HAL_CAN_STATE_BUSY;
mbed_official	237:f3da66175598	993
mbed_official	237:f3da66175598	994	/* Wake up request */
mbed_official	237:f3da66175598	995	hcan->Instance->MCR &= ~(uint32_t)CAN_MCR_SLEEP;
mbed_official	237:f3da66175598	996
mbed_official	237:f3da66175598	997	/* Get timeout */
mbed_official	237:f3da66175598	998	tickstart = HAL_GetTick();
mbed_official	237:f3da66175598	999
mbed_official	237:f3da66175598	1000	/* Sleep mode status */
mbed_official	237:f3da66175598	1001	while((hcan->Instance->MSR & CAN_MSR_SLAK) == CAN_MSR_SLAK)
mbed_official	237:f3da66175598	1002	{
mbed_official	237:f3da66175598	1003	if((HAL_GetTick()-tickstart) > 10)
mbed_official	237:f3da66175598	1004	{
mbed_official	237:f3da66175598	1005	hcan->State= HAL_CAN_STATE_TIMEOUT;
mbed_official	237:f3da66175598	1006	/* Process unlocked */
mbed_official	237:f3da66175598	1007	__HAL_UNLOCK(hcan);
mbed_official	237:f3da66175598	1008	return HAL_TIMEOUT;
mbed_official	237:f3da66175598	1009	}
mbed_official	237:f3da66175598	1010	}
mbed_official	237:f3da66175598	1011	if((hcan->Instance->MSR & CAN_MSR_SLAK) == CAN_MSR_SLAK)
mbed_official	237:f3da66175598	1012	{
mbed_official	237:f3da66175598	1013	/* Process unlocked */
mbed_official	237:f3da66175598	1014	__HAL_UNLOCK(hcan);
mbed_official	237:f3da66175598	1015
mbed_official	237:f3da66175598	1016	/* Return function status */
mbed_official	237:f3da66175598	1017	return HAL_ERROR;
mbed_official	237:f3da66175598	1018	}
mbed_official	237:f3da66175598	1019
mbed_official	237:f3da66175598	1020	/* Change CAN state */
mbed_official	237:f3da66175598	1021	hcan->State = HAL_CAN_STATE_READY;
mbed_official	237:f3da66175598	1022
mbed_official	237:f3da66175598	1023	/* Process unlocked */
mbed_official	237:f3da66175598	1024	__HAL_UNLOCK(hcan);
mbed_official	237:f3da66175598	1025
mbed_official	237:f3da66175598	1026	/* Return function status */
mbed_official	237:f3da66175598	1027	return HAL_OK;
mbed_official	237:f3da66175598	1028	}
mbed_official	237:f3da66175598	1029
mbed_official	237:f3da66175598	1030	/**
mbed_official	237:f3da66175598	1031	* @brief Handles CAN interrupt request
mbed_official	237:f3da66175598	1032	* @param hcan: pointer to a CAN_HandleTypeDef structure that contains
mbed_official	237:f3da66175598	1033	* the configuration information for the specified CAN.
mbed_official	237:f3da66175598	1034	* @retval None
mbed_official	237:f3da66175598	1035	*/
mbed_official	237:f3da66175598	1036	void HAL_CAN_IRQHandler(CAN_HandleTypeDef* hcan)
mbed_official	237:f3da66175598	1037	{
mbed_official	237:f3da66175598	1038	/* Check End of transmission flag */
mbed_official	237:f3da66175598	1039	if(__HAL_CAN_GET_IT_SOURCE(hcan, CAN_IT_TME))
mbed_official	237:f3da66175598	1040	{
mbed_official	237:f3da66175598	1041	if((__HAL_CAN_TRANSMIT_STATUS(hcan, CAN_TXMAILBOX_0)) \|\|
mbed_official	237:f3da66175598	1042	(__HAL_CAN_TRANSMIT_STATUS(hcan, CAN_TXMAILBOX_1)) \|\|
mbed_official	237:f3da66175598	1043	(__HAL_CAN_TRANSMIT_STATUS(hcan, CAN_TXMAILBOX_2)))
mbed_official	237:f3da66175598	1044	{
mbed_official	237:f3da66175598	1045	/* Call transmit function */
mbed_official	237:f3da66175598	1046	CAN_Transmit_IT(hcan);
mbed_official	237:f3da66175598	1047	}
mbed_official	237:f3da66175598	1048	}
mbed_official	237:f3da66175598	1049
mbed_official	237:f3da66175598	1050	/* Check End of reception flag for FIFO0 */
mbed_official	237:f3da66175598	1051	if((__HAL_CAN_GET_IT_SOURCE(hcan, CAN_IT_FMP0)) &&
mbed_official	237:f3da66175598	1052	(__HAL_CAN_MSG_PENDING(hcan, CAN_FIFO0) != 0))
mbed_official	237:f3da66175598	1053	{
mbed_official	237:f3da66175598	1054	/* Call receive function */
mbed_official	237:f3da66175598	1055	CAN_Receive_IT(hcan, CAN_FIFO0);
mbed_official	237:f3da66175598	1056	}
mbed_official	237:f3da66175598	1057
mbed_official	237:f3da66175598	1058	/* Check End of reception flag for FIFO1 */
mbed_official	237:f3da66175598	1059	if((__HAL_CAN_GET_IT_SOURCE(hcan, CAN_IT_FMP1)) &&
mbed_official	237:f3da66175598	1060	(__HAL_CAN_MSG_PENDING(hcan, CAN_FIFO1) != 0))
mbed_official	237:f3da66175598	1061	{
mbed_official	237:f3da66175598	1062	/* Call receive function */
mbed_official	237:f3da66175598	1063	CAN_Receive_IT(hcan, CAN_FIFO1);
mbed_official	237:f3da66175598	1064	}
mbed_official	237:f3da66175598	1065
mbed_official	237:f3da66175598	1066	/* Check Error Warning Flag */
mbed_official	237:f3da66175598	1067	if((__HAL_CAN_GET_FLAG(hcan, CAN_FLAG_EWG)) &&
mbed_official	237:f3da66175598	1068	(__HAL_CAN_GET_IT_SOURCE(hcan, CAN_IT_EWG)) &&
mbed_official	237:f3da66175598	1069	(__HAL_CAN_GET_IT_SOURCE(hcan, CAN_IT_ERR)))
mbed_official	237:f3da66175598	1070	{
mbed_official	237:f3da66175598	1071	/* Set CAN error code to EWG error */
mbed_official	237:f3da66175598	1072	hcan->ErrorCode \|= HAL_CAN_ERROR_EWG;
mbed_official	237:f3da66175598	1073	/* No need for clear of Error Warning Flag as read-only */
mbed_official	237:f3da66175598	1074	}
mbed_official	237:f3da66175598	1075
mbed_official	237:f3da66175598	1076	/* Check Error Passive Flag */
mbed_official	237:f3da66175598	1077	if((__HAL_CAN_GET_FLAG(hcan, CAN_FLAG_EPV)) &&
mbed_official	237:f3da66175598	1078	(__HAL_CAN_GET_IT_SOURCE(hcan, CAN_IT_EPV)) &&
mbed_official	237:f3da66175598	1079	(__HAL_CAN_GET_IT_SOURCE(hcan, CAN_IT_ERR)))
mbed_official	237:f3da66175598	1080	{
mbed_official	237:f3da66175598	1081	/* Set CAN error code to EPV error */
mbed_official	237:f3da66175598	1082	hcan->ErrorCode \|= HAL_CAN_ERROR_EPV;
mbed_official	237:f3da66175598	1083	/* No need for clear of Error Passive Flag as read-only */
mbed_official	237:f3da66175598	1084	}
mbed_official	237:f3da66175598	1085
mbed_official	237:f3da66175598	1086	/* Check Bus-Off Flag */
mbed_official	237:f3da66175598	1087	if((__HAL_CAN_GET_FLAG(hcan, CAN_FLAG_BOF)) &&
mbed_official	237:f3da66175598	1088	(__HAL_CAN_GET_IT_SOURCE(hcan, CAN_IT_BOF)) &&
mbed_official	237:f3da66175598	1089	(__HAL_CAN_GET_IT_SOURCE(hcan, CAN_IT_ERR)))
mbed_official	237:f3da66175598	1090	{
mbed_official	237:f3da66175598	1091	/* Set CAN error code to BOF error */
mbed_official	237:f3da66175598	1092	hcan->ErrorCode \|= HAL_CAN_ERROR_BOF;
mbed_official	237:f3da66175598	1093	/* No need for clear of Bus-Off Flag as read-only */
mbed_official	237:f3da66175598	1094	}
mbed_official	237:f3da66175598	1095
mbed_official	237:f3da66175598	1096	/* Check Last error code Flag */
mbed_official	237:f3da66175598	1097	if((!HAL_IS_BIT_CLR(hcan->Instance->ESR, CAN_ESR_LEC)) &&
mbed_official	237:f3da66175598	1098	(__HAL_CAN_GET_IT_SOURCE(hcan, CAN_IT_LEC)) &&
mbed_official	237:f3da66175598	1099	(__HAL_CAN_GET_IT_SOURCE(hcan, CAN_IT_ERR)))
mbed_official	237:f3da66175598	1100	{
mbed_official	237:f3da66175598	1101	switch(hcan->Instance->ESR & CAN_ESR_LEC)
mbed_official	237:f3da66175598	1102	{
mbed_official	237:f3da66175598	1103	case(CAN_ESR_LEC_0):
mbed_official	237:f3da66175598	1104	/* Set CAN error code to STF error */
mbed_official	237:f3da66175598	1105	hcan->ErrorCode \|= HAL_CAN_ERROR_STF;
mbed_official	237:f3da66175598	1106	break;
mbed_official	237:f3da66175598	1107	case(CAN_ESR_LEC_1):
mbed_official	237:f3da66175598	1108	/* Set CAN error code to FOR error */
mbed_official	237:f3da66175598	1109	hcan->ErrorCode \|= HAL_CAN_ERROR_FOR;
mbed_official	237:f3da66175598	1110	break;
mbed_official	237:f3da66175598	1111	case(CAN_ESR_LEC_1 \| CAN_ESR_LEC_0):
mbed_official	237:f3da66175598	1112	/* Set CAN error code to ACK error */
mbed_official	237:f3da66175598	1113	hcan->ErrorCode \|= HAL_CAN_ERROR_ACK;
mbed_official	237:f3da66175598	1114	break;
mbed_official	237:f3da66175598	1115	case(CAN_ESR_LEC_2):
mbed_official	237:f3da66175598	1116	/* Set CAN error code to BR error */
mbed_official	237:f3da66175598	1117	hcan->ErrorCode \|= HAL_CAN_ERROR_BR;
mbed_official	237:f3da66175598	1118	break;
mbed_official	237:f3da66175598	1119	case(CAN_ESR_LEC_2 \| CAN_ESR_LEC_0):
mbed_official	237:f3da66175598	1120	/* Set CAN error code to BD error */
mbed_official	237:f3da66175598	1121	hcan->ErrorCode \|= HAL_CAN_ERROR_BD;
mbed_official	237:f3da66175598	1122	break;
mbed_official	237:f3da66175598	1123	case(CAN_ESR_LEC_2 \| CAN_ESR_LEC_1):
mbed_official	237:f3da66175598	1124	/* Set CAN error code to CRC error */
mbed_official	237:f3da66175598	1125	hcan->ErrorCode \|= HAL_CAN_ERROR_CRC;
mbed_official	237:f3da66175598	1126	break;
mbed_official	237:f3da66175598	1127	default:
mbed_official	237:f3da66175598	1128	break;
mbed_official	237:f3da66175598	1129	}
mbed_official	237:f3da66175598	1130
mbed_official	237:f3da66175598	1131	/* Clear Last error code Flag */
mbed_official	237:f3da66175598	1132	hcan->Instance->ESR &= ~(CAN_ESR_LEC);
mbed_official	237:f3da66175598	1133	}
mbed_official	237:f3da66175598	1134
mbed_official	237:f3da66175598	1135	/* Call the Error call Back in case of Errors */
mbed_official	237:f3da66175598	1136	if(hcan->ErrorCode != HAL_CAN_ERROR_NONE)
mbed_official	237:f3da66175598	1137	{
mbed_official	237:f3da66175598	1138	/* Set the CAN state ready to be able to start again the process */
mbed_official	237:f3da66175598	1139	hcan->State = HAL_CAN_STATE_READY;
mbed_official	237:f3da66175598	1140	/* Call Error callback function */
mbed_official	237:f3da66175598	1141	HAL_CAN_ErrorCallback(hcan);
mbed_official	237:f3da66175598	1142	}
mbed_official	237:f3da66175598	1143	}
mbed_official	237:f3da66175598	1144
mbed_official	237:f3da66175598	1145	/**
mbed_official	237:f3da66175598	1146	* @brief Transmission complete callback in non blocking mode
mbed_official	237:f3da66175598	1147	* @param hcan: pointer to a CAN_HandleTypeDef structure that contains
mbed_official	237:f3da66175598	1148	* the configuration information for the specified CAN.
mbed_official	237:f3da66175598	1149	* @retval None
mbed_official	237:f3da66175598	1150	*/
mbed_official	237:f3da66175598	1151	__weak void HAL_CAN_TxCpltCallback(CAN_HandleTypeDef* hcan)
mbed_official	237:f3da66175598	1152	{
mbed_official	237:f3da66175598	1153	/* NOTE : This function Should not be modified, when the callback is needed,
mbed_official	237:f3da66175598	1154	the HAL_CAN_TxCpltCallback could be implemented in the user file
mbed_official	237:f3da66175598	1155	*/
mbed_official	237:f3da66175598	1156	}
mbed_official	237:f3da66175598	1157
mbed_official	237:f3da66175598	1158	/**
mbed_official	237:f3da66175598	1159	* @brief Transmission complete callback in non blocking mode
mbed_official	237:f3da66175598	1160	* @param hcan: pointer to a CAN_HandleTypeDef structure that contains
mbed_official	237:f3da66175598	1161	* the configuration information for the specified CAN.
mbed_official	237:f3da66175598	1162	* @retval None
mbed_official	237:f3da66175598	1163	*/
mbed_official	237:f3da66175598	1164	__weak void HAL_CAN_RxCpltCallback(CAN_HandleTypeDef* hcan)
mbed_official	237:f3da66175598	1165	{
mbed_official	237:f3da66175598	1166	/* NOTE : This function Should not be modified, when the callback is needed,
mbed_official	237:f3da66175598	1167	the HAL_CAN_RxCpltCallback could be implemented in the user file
mbed_official	237:f3da66175598	1168	*/
mbed_official	237:f3da66175598	1169	}
mbed_official	237:f3da66175598	1170
mbed_official	237:f3da66175598	1171	/**
mbed_official	237:f3da66175598	1172	* @brief Error CAN callback.
mbed_official	237:f3da66175598	1173	* @param hcan: pointer to a CAN_HandleTypeDef structure that contains
mbed_official	237:f3da66175598	1174	* the configuration information for the specified CAN.
mbed_official	237:f3da66175598	1175	* @retval None
mbed_official	237:f3da66175598	1176	*/
mbed_official	237:f3da66175598	1177	__weak void HAL_CAN_ErrorCallback(CAN_HandleTypeDef *hcan)
mbed_official	237:f3da66175598	1178	{
mbed_official	237:f3da66175598	1179	/* NOTE : This function Should not be modified, when the callback is needed,
mbed_official	237:f3da66175598	1180	the HAL_CAN_ErrorCallback could be implemented in the user file
mbed_official	237:f3da66175598	1181	*/
mbed_official	237:f3da66175598	1182	}
mbed_official	237:f3da66175598	1183
mbed_official	237:f3da66175598	1184	/**
mbed_official	237:f3da66175598	1185	* @}
mbed_official	237:f3da66175598	1186	*/
mbed_official	237:f3da66175598	1187
mbed_official	375:3d36234a1087	1188	/** @defgroup CAN_Exported_Functions_Group3 Peripheral State and Error functions
mbed_official	237:f3da66175598	1189	* @brief CAN Peripheral State functions
mbed_official	237:f3da66175598	1190	*
mbed_official	237:f3da66175598	1191	@verbatim
mbed_official	237:f3da66175598	1192	==============================================================================
mbed_official	237:f3da66175598	1193	##### Peripheral State and Error functions #####
mbed_official	237:f3da66175598	1194	==============================================================================
mbed_official	237:f3da66175598	1195	[..]
mbed_official	237:f3da66175598	1196	This subsection provides functions allowing to :
mbed_official	237:f3da66175598	1197	(+) Check the CAN state.
mbed_official	237:f3da66175598	1198	(+) Check CAN Errors detected during interrupt process
mbed_official	237:f3da66175598	1199
mbed_official	237:f3da66175598	1200	@endverbatim
mbed_official	237:f3da66175598	1201	* @{
mbed_official	237:f3da66175598	1202	*/
mbed_official	237:f3da66175598	1203
mbed_official	237:f3da66175598	1204	/**
mbed_official	237:f3da66175598	1205	* @brief return the CAN state
mbed_official	237:f3da66175598	1206	* @param hcan: pointer to a CAN_HandleTypeDef structure that contains
mbed_official	237:f3da66175598	1207	* the configuration information for the specified CAN.
mbed_official	237:f3da66175598	1208	* @retval HAL state
mbed_official	237:f3da66175598	1209	*/
mbed_official	237:f3da66175598	1210	HAL_CAN_StateTypeDef HAL_CAN_GetState(CAN_HandleTypeDef* hcan)
mbed_official	237:f3da66175598	1211	{
mbed_official	237:f3da66175598	1212	/* Return CAN state */
mbed_official	237:f3da66175598	1213	return hcan->State;
mbed_official	237:f3da66175598	1214	}
mbed_official	237:f3da66175598	1215
mbed_official	237:f3da66175598	1216	/**
mbed_official	237:f3da66175598	1217	* @brief Return the CAN error code
mbed_official	237:f3da66175598	1218	* @param hcan: pointer to a CAN_HandleTypeDef structure that contains
mbed_official	237:f3da66175598	1219	* the configuration information for the specified CAN.
mbed_official	237:f3da66175598	1220	* @retval CAN Error Code
mbed_official	237:f3da66175598	1221	*/
mbed_official	237:f3da66175598	1222	uint32_t HAL_CAN_GetError(CAN_HandleTypeDef *hcan)
mbed_official	237:f3da66175598	1223	{
mbed_official	237:f3da66175598	1224	return hcan->ErrorCode;
mbed_official	237:f3da66175598	1225	}
mbed_official	237:f3da66175598	1226
mbed_official	237:f3da66175598	1227	/**
mbed_official	237:f3da66175598	1228	* @}
mbed_official	237:f3da66175598	1229	*/
mbed_official	237:f3da66175598	1230
mbed_official	237:f3da66175598	1231	/**
mbed_official	375:3d36234a1087	1232	* @}
mbed_official	375:3d36234a1087	1233	*/
mbed_official	375:3d36234a1087	1234
mbed_official	375:3d36234a1087	1235	/** @defgroup CAN_Private_Functions CAN Private Functions
mbed_official	375:3d36234a1087	1236	* @{
mbed_official	375:3d36234a1087	1237	*/
mbed_official	375:3d36234a1087	1238	/**
mbed_official	237:f3da66175598	1239	* @brief Initiates and transmits a CAN frame message.
mbed_official	237:f3da66175598	1240	* @param hcan: pointer to a CAN_HandleTypeDef structure that contains
mbed_official	237:f3da66175598	1241	* the configuration information for the specified CAN.
mbed_official	237:f3da66175598	1242	* @retval HAL status
mbed_official	237:f3da66175598	1243	*/
mbed_official	237:f3da66175598	1244	static HAL_StatusTypeDef CAN_Transmit_IT(CAN_HandleTypeDef* hcan)
mbed_official	237:f3da66175598	1245	{
mbed_official	237:f3da66175598	1246	/* Disable Transmit mailbox empty Interrupt */
mbed_official	237:f3da66175598	1247	__HAL_CAN_DISABLE_IT(hcan, CAN_IT_TME);
mbed_official	237:f3da66175598	1248
mbed_official	237:f3da66175598	1249	if(hcan->State == HAL_CAN_STATE_BUSY_TX)
mbed_official	237:f3da66175598	1250	{
mbed_official	237:f3da66175598	1251	/* Disable Error warning Interrupt */
mbed_official	237:f3da66175598	1252	__HAL_CAN_DISABLE_IT(hcan, CAN_IT_EWG);
mbed_official	237:f3da66175598	1253
mbed_official	237:f3da66175598	1254	/* Disable Error passive Interrupt */
mbed_official	237:f3da66175598	1255	__HAL_CAN_DISABLE_IT(hcan, CAN_IT_EPV);
mbed_official	237:f3da66175598	1256
mbed_official	237:f3da66175598	1257	/* Disable Bus-off Interrupt */
mbed_official	237:f3da66175598	1258	__HAL_CAN_DISABLE_IT(hcan, CAN_IT_BOF);
mbed_official	237:f3da66175598	1259
mbed_official	237:f3da66175598	1260	/* Disable Last error code Interrupt */
mbed_official	237:f3da66175598	1261	__HAL_CAN_DISABLE_IT(hcan, CAN_IT_LEC);
mbed_official	237:f3da66175598	1262
mbed_official	237:f3da66175598	1263	/* Disable Error Interrupt */
mbed_official	237:f3da66175598	1264	__HAL_CAN_DISABLE_IT(hcan, CAN_IT_ERR);
mbed_official	237:f3da66175598	1265	}
mbed_official	237:f3da66175598	1266
mbed_official	237:f3da66175598	1267	if(hcan->State == HAL_CAN_STATE_BUSY_TX_RX)
mbed_official	237:f3da66175598	1268	{
mbed_official	237:f3da66175598	1269	/* Change CAN state */
mbed_official	237:f3da66175598	1270	hcan->State = HAL_CAN_STATE_BUSY_RX;
mbed_official	237:f3da66175598	1271	}
mbed_official	237:f3da66175598	1272	else
mbed_official	237:f3da66175598	1273	{
mbed_official	237:f3da66175598	1274	/* Change CAN state */
mbed_official	237:f3da66175598	1275	hcan->State = HAL_CAN_STATE_READY;
mbed_official	237:f3da66175598	1276	}
mbed_official	237:f3da66175598	1277
mbed_official	237:f3da66175598	1278	/* Transmission complete callback */
mbed_official	237:f3da66175598	1279	HAL_CAN_TxCpltCallback(hcan);
mbed_official	237:f3da66175598	1280
mbed_official	237:f3da66175598	1281	return HAL_OK;
mbed_official	237:f3da66175598	1282	}
mbed_official	237:f3da66175598	1283
mbed_official	237:f3da66175598	1284	/**
mbed_official	237:f3da66175598	1285	* @brief Receives a correct CAN frame.
mbed_official	237:f3da66175598	1286	* @param hcan: Pointer to a CAN_HandleTypeDef structure that contains
mbed_official	237:f3da66175598	1287	* the configuration information for the specified CAN.
mbed_official	237:f3da66175598	1288	* @param FIFONumber: Specify the FIFO number
mbed_official	237:f3da66175598	1289	* @retval HAL status
mbed_official	237:f3da66175598	1290	* @retval None
mbed_official	237:f3da66175598	1291	*/
mbed_official	237:f3da66175598	1292	static HAL_StatusTypeDef CAN_Receive_IT(CAN_HandleTypeDef* hcan, uint8_t FIFONumber)
mbed_official	237:f3da66175598	1293	{
mbed_official	237:f3da66175598	1294	/* Get the Id */
mbed_official	237:f3da66175598	1295	hcan->pRxMsg->IDE = (uint8_t)0x04 & hcan->Instance->sFIFOMailBox[FIFONumber].RIR;
mbed_official	237:f3da66175598	1296	if (hcan->pRxMsg->IDE == CAN_ID_STD)
mbed_official	237:f3da66175598	1297	{
mbed_official	237:f3da66175598	1298	hcan->pRxMsg->StdId = (uint32_t)0x000007FF & (hcan->Instance->sFIFOMailBox[FIFONumber].RIR >> 21);
mbed_official	237:f3da66175598	1299	}
mbed_official	237:f3da66175598	1300	else
mbed_official	237:f3da66175598	1301	{
mbed_official	237:f3da66175598	1302	hcan->pRxMsg->ExtId = (uint32_t)0x1FFFFFFF & (hcan->Instance->sFIFOMailBox[FIFONumber].RIR >> 3);
mbed_official	237:f3da66175598	1303	}
mbed_official	237:f3da66175598	1304
mbed_official	237:f3da66175598	1305	hcan->pRxMsg->RTR = (uint8_t)0x02 & hcan->Instance->sFIFOMailBox[FIFONumber].RIR;
mbed_official	237:f3da66175598	1306	/* Get the DLC */
mbed_official	237:f3da66175598	1307	hcan->pRxMsg->DLC = (uint8_t)0x0F & hcan->Instance->sFIFOMailBox[FIFONumber].RDTR;
mbed_official	237:f3da66175598	1308	/* Get the FMI */
mbed_official	237:f3da66175598	1309	hcan->pRxMsg->FMI = (uint8_t)0xFF & (hcan->Instance->sFIFOMailBox[FIFONumber].RDTR >> 8);
mbed_official	237:f3da66175598	1310	/* Get the data field */
mbed_official	237:f3da66175598	1311	hcan->pRxMsg->Data[0] = (uint8_t)0xFF & hcan->Instance->sFIFOMailBox[FIFONumber].RDLR;
mbed_official	237:f3da66175598	1312	hcan->pRxMsg->Data[1] = (uint8_t)0xFF & (hcan->Instance->sFIFOMailBox[FIFONumber].RDLR >> 8);
mbed_official	237:f3da66175598	1313	hcan->pRxMsg->Data[2] = (uint8_t)0xFF & (hcan->Instance->sFIFOMailBox[FIFONumber].RDLR >> 16);
mbed_official	237:f3da66175598	1314	hcan->pRxMsg->Data[3] = (uint8_t)0xFF & (hcan->Instance->sFIFOMailBox[FIFONumber].RDLR >> 24);
mbed_official	237:f3da66175598	1315	hcan->pRxMsg->Data[4] = (uint8_t)0xFF & hcan->Instance->sFIFOMailBox[FIFONumber].RDHR;
mbed_official	237:f3da66175598	1316	hcan->pRxMsg->Data[5] = (uint8_t)0xFF & (hcan->Instance->sFIFOMailBox[FIFONumber].RDHR >> 8);
mbed_official	237:f3da66175598	1317	hcan->pRxMsg->Data[6] = (uint8_t)0xFF & (hcan->Instance->sFIFOMailBox[FIFONumber].RDHR >> 16);
mbed_official	237:f3da66175598	1318	hcan->pRxMsg->Data[7] = (uint8_t)0xFF & (hcan->Instance->sFIFOMailBox[FIFONumber].RDHR >> 24);
mbed_official	237:f3da66175598	1319	/* Release the FIFO */
mbed_official	237:f3da66175598	1320	/* Release FIFO0 */
mbed_official	237:f3da66175598	1321	if (FIFONumber == CAN_FIFO0)
mbed_official	237:f3da66175598	1322	{
mbed_official	237:f3da66175598	1323	__HAL_CAN_FIFO_RELEASE(hcan, CAN_FIFO0);
mbed_official	237:f3da66175598	1324
mbed_official	237:f3da66175598	1325	/* Disable FIFO 0 message pending Interrupt */
mbed_official	237:f3da66175598	1326	__HAL_CAN_DISABLE_IT(hcan, CAN_IT_FMP0);
mbed_official	237:f3da66175598	1327	}
mbed_official	237:f3da66175598	1328	/* Release FIFO1 */
mbed_official	237:f3da66175598	1329	else /* FIFONumber == CAN_FIFO1 */
mbed_official	237:f3da66175598	1330	{
mbed_official	237:f3da66175598	1331	__HAL_CAN_FIFO_RELEASE(hcan, CAN_FIFO1);
mbed_official	237:f3da66175598	1332
mbed_official	237:f3da66175598	1333	/* Disable FIFO 1 message pending Interrupt */
mbed_official	237:f3da66175598	1334	__HAL_CAN_DISABLE_IT(hcan, CAN_IT_FMP1);
mbed_official	237:f3da66175598	1335	}
mbed_official	237:f3da66175598	1336
mbed_official	237:f3da66175598	1337	if(hcan->State == HAL_CAN_STATE_BUSY_RX)
mbed_official	237:f3da66175598	1338	{
mbed_official	237:f3da66175598	1339	/* Disable Error warning Interrupt */
mbed_official	237:f3da66175598	1340	__HAL_CAN_DISABLE_IT(hcan, CAN_IT_EWG);
mbed_official	237:f3da66175598	1341
mbed_official	237:f3da66175598	1342	/* Disable Error passive Interrupt */
mbed_official	237:f3da66175598	1343	__HAL_CAN_DISABLE_IT(hcan, CAN_IT_EPV);
mbed_official	237:f3da66175598	1344
mbed_official	237:f3da66175598	1345	/* Disable Bus-off Interrupt */
mbed_official	237:f3da66175598	1346	__HAL_CAN_DISABLE_IT(hcan, CAN_IT_BOF);
mbed_official	237:f3da66175598	1347
mbed_official	237:f3da66175598	1348	/* Disable Last error code Interrupt */
mbed_official	237:f3da66175598	1349	__HAL_CAN_DISABLE_IT(hcan, CAN_IT_LEC);
mbed_official	237:f3da66175598	1350
mbed_official	237:f3da66175598	1351	/* Disable Error Interrupt */
mbed_official	237:f3da66175598	1352	__HAL_CAN_DISABLE_IT(hcan, CAN_IT_ERR);
mbed_official	237:f3da66175598	1353	}
mbed_official	237:f3da66175598	1354
mbed_official	237:f3da66175598	1355	if(hcan->State == HAL_CAN_STATE_BUSY_TX_RX)
mbed_official	237:f3da66175598	1356	{
mbed_official	237:f3da66175598	1357	/* Disable CAN state */
mbed_official	237:f3da66175598	1358	hcan->State = HAL_CAN_STATE_BUSY_TX;
mbed_official	237:f3da66175598	1359	}
mbed_official	237:f3da66175598	1360	else
mbed_official	237:f3da66175598	1361	{
mbed_official	237:f3da66175598	1362	/* Change CAN state */
mbed_official	237:f3da66175598	1363	hcan->State = HAL_CAN_STATE_READY;
mbed_official	237:f3da66175598	1364	}
mbed_official	237:f3da66175598	1365
mbed_official	237:f3da66175598	1366	/* Receive complete callback */
mbed_official	237:f3da66175598	1367	HAL_CAN_RxCpltCallback(hcan);
mbed_official	237:f3da66175598	1368
mbed_official	237:f3da66175598	1369	/* Return function status */
mbed_official	237:f3da66175598	1370	return HAL_OK;
mbed_official	375:3d36234a1087	1371	}
mbed_official	237:f3da66175598	1372	/**
mbed_official	375:3d36234a1087	1373	* @}
mbed_official	375:3d36234a1087	1374	*/
mbed_official	375:3d36234a1087	1375	#endif /* STM32F302xE \|\| STM32F303xE \|\| STM32F398xx \|\| */
mbed_official	375:3d36234a1087	1376	/* STM32F302xC \|\| STM32F303xC \|\| STM32F358xx \|\| */
mbed_official	375:3d36234a1087	1377	/* STM32F303x8 \|\| STM32F334x8 \|\| STM32F328xx \|\| */
mbed_official	375:3d36234a1087	1378	/* STM32F302x8 \|\| */
mbed_official	375:3d36234a1087	1379	/* STM32F373xC \|\| STM32F378xx */
mbed_official	237:f3da66175598	1380
mbed_official	237:f3da66175598	1381	#endif /* HAL_CAN_MODULE_ENABLED */
mbed_official	237:f3da66175598	1382	/**
mbed_official	237:f3da66175598	1383	* @}
mbed_official	237:f3da66175598	1384	*/
mbed_official	237:f3da66175598	1385
mbed_official	237:f3da66175598	1386	/**
mbed_official	237:f3da66175598	1387	* @}
mbed_official	237:f3da66175598	1388	*/
mbed_official	237:f3da66175598	1389
mbed_official	237:f3da66175598	1390	/********************** (C) COPYRIGHT STMicroelectronics *END OF FILE**/

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Type:	Library
Created:	02 Jun 2016
Imports:	1
Forks:	0
Commits:	637
Dependents:	0
Dependencies:	0
Followers:	1

targets/cmsis/TARGET_STM/TARGET_STM32F3/stm32f3xx_hal_can.c@635:ac7d6880524d, 2015-09-28 (annotated)

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