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Last commit 20 Feb 2019 by mbed official

targets/cmsis/TARGET_STM/TARGET_NUCLEO_F401RE/stm32f4xx_hal_cortex.c@87:085cde657901, 2014-02-08 (annotated)

Committer:
mbed_official
Date:
Sat Feb 08 19:45:06 2014 +0000
Revision:
87:085cde657901
Child:
106:ced8cbb51063
Synchronized with git revision 9272cdeb45ec7e6077641536509413da8fd2ebc2



Full URL: https://github.com/mbedmicro/mbed/commit/9272cdeb45ec7e6077641536509413da8fd2ebc2/



Add NUCLEO_F401RE, improvements

Who changed what in which revision?

UserRevisionLine numberNew contents of line
mbed_official 87:085cde657901 1 /**
mbed_official 87:085cde657901 2 ******************************************************************************
mbed_official 87:085cde657901 3 * @file stm32f4xx_hal_cortex.c
mbed_official 87:085cde657901 4 * @author MCD Application Team
mbed_official 87:085cde657901 5 * @version V1.0.0RC2
mbed_official 87:085cde657901 6 * @date 04-February-2014
mbed_official 87:085cde657901 7 * @brief CORTEX HAL module driver.
mbed_official 87:085cde657901 8 * This file provides firmware functions to manage the following
mbed_official 87:085cde657901 9 * functionalities of the CORTEX:
mbed_official 87:085cde657901 10 * + Initialization and de-initialization functions
mbed_official 87:085cde657901 11 * + Peripheral Control functions
mbed_official 87:085cde657901 12 *
mbed_official 87:085cde657901 13 @verbatim
mbed_official 87:085cde657901 14 ==============================================================================
mbed_official 87:085cde657901 15 ##### How to use this driver #####
mbed_official 87:085cde657901 16 ==============================================================================
mbed_official 87:085cde657901 17
mbed_official 87:085cde657901 18 [..]
mbed_official 87:085cde657901 19 *** How to configure Interrupts using Cortex HAL driver ***
mbed_official 87:085cde657901 20 ===========================================================
mbed_official 87:085cde657901 21 [..]
mbed_official 87:085cde657901 22 This section provide functions allowing to configure the NVIC interrupts (IRQ).
mbed_official 87:085cde657901 23 The Cortex-M4 exceptions are managed by CMSIS functions.
mbed_official 87:085cde657901 24
mbed_official 87:085cde657901 25 (#) Configure the NVIC Priority Grouping using HAL_NVIC_SetPriorityGrouping()
mbed_official 87:085cde657901 26 function according to the following table.
mbed_official 87:085cde657901 27
mbed_official 87:085cde657901 28 The table below gives the allowed values of the pre-emption priority and subpriority according
mbed_official 87:085cde657901 29 to the Priority Grouping configuration performed by HAL_NVIC_SetPriorityGrouping() function.
mbed_official 87:085cde657901 30 ==========================================================================================================================
mbed_official 87:085cde657901 31 NVIC_PriorityGroup | NVIC_IRQChannelPreemptionPriority | NVIC_IRQChannelSubPriority | Description
mbed_official 87:085cde657901 32 ==========================================================================================================================
mbed_official 87:085cde657901 33 NVIC_PRIORITYGROUP_0 | 0 | 0-15 | 0 bits for pre-emption priority
mbed_official 87:085cde657901 34 | | | 4 bits for subpriority
mbed_official 87:085cde657901 35 --------------------------------------------------------------------------------------------------------------------------
mbed_official 87:085cde657901 36 NVIC_PRIORITYGROUP_1 | 0-1 | 0-7 | 1 bits for pre-emption priority
mbed_official 87:085cde657901 37 | | | 3 bits for subpriority
mbed_official 87:085cde657901 38 --------------------------------------------------------------------------------------------------------------------------
mbed_official 87:085cde657901 39 NVIC_PRIORITYGROUP_2 | 0-3 | 0-3 | 2 bits for pre-emption priority
mbed_official 87:085cde657901 40 | | | 2 bits for subpriority
mbed_official 87:085cde657901 41 --------------------------------------------------------------------------------------------------------------------------
mbed_official 87:085cde657901 42 NVIC_PRIORITYGROUP_3 | 0-7 | 0-1 | 3 bits for pre-emption priority
mbed_official 87:085cde657901 43 | | | 1 bits for subpriority
mbed_official 87:085cde657901 44 --------------------------------------------------------------------------------------------------------------------------
mbed_official 87:085cde657901 45 NVIC_PRIORITYGROUP_4 | 0-15 | 0 | 4 bits for pre-emption priority
mbed_official 87:085cde657901 46 | | | 0 bits for subpriority
mbed_official 87:085cde657901 47 ==========================================================================================================================
mbed_official 87:085cde657901 48 (#) Configure the priority of the selected IRQ Channels using HAL_NVIC_SetPriority()
mbed_official 87:085cde657901 49
mbed_official 87:085cde657901 50 (#) Enable the selected IRQ Channels using HAL_NVIC_EnableIRQ()
mbed_official 87:085cde657901 51
mbed_official 87:085cde657901 52
mbed_official 87:085cde657901 53 -@- When the NVIC_PRIORITYGROUP_0 is selected, IRQ pre-emption is no more possible.
mbed_official 87:085cde657901 54 The pending IRQ priority will be managed only by the sub priority.
mbed_official 87:085cde657901 55
mbed_official 87:085cde657901 56 -@- IRQ priority order (sorted by highest to lowest priority):
mbed_official 87:085cde657901 57 (+@) Lowest pre-emption priority
mbed_official 87:085cde657901 58 (+@) Lowest sub priority
mbed_official 87:085cde657901 59 (+@) Lowest hardware priority (IRQ number)
mbed_official 87:085cde657901 60
mbed_official 87:085cde657901 61 [..]
mbed_official 87:085cde657901 62 *** How to configure Systick using Cortex HAL driver ***
mbed_official 87:085cde657901 63 ========================================================
mbed_official 87:085cde657901 64 [..]
mbed_official 87:085cde657901 65 Setup SysTick Timer for 1 msec interrupts.
mbed_official 87:085cde657901 66
mbed_official 87:085cde657901 67 (+) The HAL_SYSTICK_Config()function calls the SysTick_Config() function which
mbed_official 87:085cde657901 68 is a CMSIS function that:
mbed_official 87:085cde657901 69 (++) Configures the SysTick Reload register with value passed as function parameter.
mbed_official 87:085cde657901 70 (++) Configures the SysTick IRQ priority to the lowest value (0x0F).
mbed_official 87:085cde657901 71 (++) Resets the SysTick Counter register.
mbed_official 87:085cde657901 72 (++) Configures the SysTick Counter clock source to be Core Clock Source (HCLK).
mbed_official 87:085cde657901 73 (++) Enables the SysTick Interrupt.
mbed_official 87:085cde657901 74 (++) Starts the SysTick Counter.
mbed_official 87:085cde657901 75
mbed_official 87:085cde657901 76 (+) You can change the SysTick Clock source to be HCLK_Div8 by calling the macro
mbed_official 87:085cde657901 77 __HAL_CORTEX_SYSTICKCLK_CONFIG(SYSTICK_CLKSOURCE_HCLK_DIV8) just after the
mbed_official 87:085cde657901 78 HAL_SYSTICK_Config() function call. The __HAL_CORTEX_SYSTICKCLK_CONFIG() macro is defined
mbed_official 87:085cde657901 79 inside the stm32f4xx_hal_cortex.h file.
mbed_official 87:085cde657901 80
mbed_official 87:085cde657901 81 (+) You can change the SysTick IRQ priority by calling the
mbed_official 87:085cde657901 82 HAL_NVIC_SetPriority(SysTick_IRQn,...) function just after the HAL_SYSTICK_Config() function
mbed_official 87:085cde657901 83 call. The HAL_NVIC_SetPriority() call the NVIC_SetPriority() function which is a CMSIS function.
mbed_official 87:085cde657901 84
mbed_official 87:085cde657901 85 (+) To adjust the SysTick time base, use the following formula:
mbed_official 87:085cde657901 86
mbed_official 87:085cde657901 87 Reload Value = SysTick Counter Clock (Hz) x Desired Time base (s)
mbed_official 87:085cde657901 88 (++) Reload Value is the parameter to be passed for HAL_SYSTICK_Config() function
mbed_official 87:085cde657901 89 (++) Reload Value should not exceed 0xFFFFFF
mbed_official 87:085cde657901 90
mbed_official 87:085cde657901 91 @endverbatim
mbed_official 87:085cde657901 92 ******************************************************************************
mbed_official 87:085cde657901 93 * @attention
mbed_official 87:085cde657901 94 *
mbed_official 87:085cde657901 95 * <h2><center>&copy; COPYRIGHT(c) 2014 STMicroelectronics</center></h2>
mbed_official 87:085cde657901 96 *
mbed_official 87:085cde657901 97 * Redistribution and use in source and binary forms, with or without modification,
mbed_official 87:085cde657901 98 * are permitted provided that the following conditions are met:
mbed_official 87:085cde657901 99 * 1. Redistributions of source code must retain the above copyright notice,
mbed_official 87:085cde657901 100 * this list of conditions and the following disclaimer.
mbed_official 87:085cde657901 101 * 2. Redistributions in binary form must reproduce the above copyright notice,
mbed_official 87:085cde657901 102 * this list of conditions and the following disclaimer in the documentation
mbed_official 87:085cde657901 103 * and/or other materials provided with the distribution.
mbed_official 87:085cde657901 104 * 3. Neither the name of STMicroelectronics nor the names of its contributors
mbed_official 87:085cde657901 105 * may be used to endorse or promote products derived from this software
mbed_official 87:085cde657901 106 * without specific prior written permission.
mbed_official 87:085cde657901 107 *
mbed_official 87:085cde657901 108 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
mbed_official 87:085cde657901 109 * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
mbed_official 87:085cde657901 110 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
mbed_official 87:085cde657901 111 * DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE
mbed_official 87:085cde657901 112 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
mbed_official 87:085cde657901 113 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
mbed_official 87:085cde657901 114 * SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
mbed_official 87:085cde657901 115 * CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
mbed_official 87:085cde657901 116 * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
mbed_official 87:085cde657901 117 * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
mbed_official 87:085cde657901 118 *
mbed_official 87:085cde657901 119 ******************************************************************************
mbed_official 87:085cde657901 120 */
mbed_official 87:085cde657901 121
mbed_official 87:085cde657901 122 /* Includes ------------------------------------------------------------------*/
mbed_official 87:085cde657901 123 #include "stm32f4xx_hal.h"
mbed_official 87:085cde657901 124
mbed_official 87:085cde657901 125 /** @addtogroup STM32F4xx_HAL_Driver
mbed_official 87:085cde657901 126 * @{
mbed_official 87:085cde657901 127 */
mbed_official 87:085cde657901 128
mbed_official 87:085cde657901 129 /** @defgroup CORTEX
mbed_official 87:085cde657901 130 * @brief CORTEX HAL module driver
mbed_official 87:085cde657901 131 * @{
mbed_official 87:085cde657901 132 */
mbed_official 87:085cde657901 133
mbed_official 87:085cde657901 134 #ifdef HAL_CORTEX_MODULE_ENABLED
mbed_official 87:085cde657901 135
mbed_official 87:085cde657901 136 /* Private typedef -----------------------------------------------------------*/
mbed_official 87:085cde657901 137 /* Private define ------------------------------------------------------------*/
mbed_official 87:085cde657901 138 /* Private macro -------------------------------------------------------------*/
mbed_official 87:085cde657901 139 /* Private variables ---------------------------------------------------------*/
mbed_official 87:085cde657901 140 /* Private function prototypes -----------------------------------------------*/
mbed_official 87:085cde657901 141 /* Private functions ---------------------------------------------------------*/
mbed_official 87:085cde657901 142
mbed_official 87:085cde657901 143 /** @defgroup CORTEX_Private_Functions
mbed_official 87:085cde657901 144 * @{
mbed_official 87:085cde657901 145 */
mbed_official 87:085cde657901 146
mbed_official 87:085cde657901 147
mbed_official 87:085cde657901 148 /** @defgroup CORTEX_Group1 Initialization and de-initialization functions
mbed_official 87:085cde657901 149 * @brief Initialization and Configuration functions
mbed_official 87:085cde657901 150 *
mbed_official 87:085cde657901 151 @verbatim
mbed_official 87:085cde657901 152 ==============================================================================
mbed_official 87:085cde657901 153 ##### Initialization and de-initialization functions #####
mbed_official 87:085cde657901 154 ==============================================================================
mbed_official 87:085cde657901 155 [..]
mbed_official 87:085cde657901 156 This section provide the Cortex HAL driver functions allowing to configure Interrupts
mbed_official 87:085cde657901 157 Systick functionalities
mbed_official 87:085cde657901 158
mbed_official 87:085cde657901 159 @endverbatim
mbed_official 87:085cde657901 160 * @{
mbed_official 87:085cde657901 161 */
mbed_official 87:085cde657901 162
mbed_official 87:085cde657901 163
mbed_official 87:085cde657901 164 /**
mbed_official 87:085cde657901 165 * @brief Sets the priority grouping field (pre-emption priority and subpriority)
mbed_official 87:085cde657901 166 * using the required unlock sequence.
mbed_official 87:085cde657901 167 * @param PriorityGroup: The priority grouping bits length.
mbed_official 87:085cde657901 168 * This parameter can be one of the following values:
mbed_official 87:085cde657901 169 * @arg NVIC_PRIORITYGROUP_0: 0 bits for pre-emption priority
mbed_official 87:085cde657901 170 * 4 bits for subpriority
mbed_official 87:085cde657901 171 * @arg NVIC_PRIORITYGROUP_1: 1 bits for pre-emption priority
mbed_official 87:085cde657901 172 * 3 bits for subpriority
mbed_official 87:085cde657901 173 * @arg NVIC_PRIORITYGROUP_2: 2 bits for pre-emption priority
mbed_official 87:085cde657901 174 * 2 bits for subpriority
mbed_official 87:085cde657901 175 * @arg NVIC_PRIORITYGROUP_3: 3 bits for pre-emption priority
mbed_official 87:085cde657901 176 * 1 bits for subpriority
mbed_official 87:085cde657901 177 * @arg NVIC_PRIORITYGROUP_4: 4 bits for pre-emption priority
mbed_official 87:085cde657901 178 * 0 bits for subpriority
mbed_official 87:085cde657901 179 * @note When the NVIC_PriorityGroup_0 is selected, IRQ pre-emption is no more possible.
mbed_official 87:085cde657901 180 * The pending IRQ priority will be managed only by the subpriority.
mbed_official 87:085cde657901 181 * @retval None
mbed_official 87:085cde657901 182 */
mbed_official 87:085cde657901 183 void HAL_NVIC_SetPriorityGrouping(uint32_t PriorityGroup)
mbed_official 87:085cde657901 184 {
mbed_official 87:085cde657901 185 /* Check the parameters */
mbed_official 87:085cde657901 186 assert_param(IS_NVIC_PRIORITY_GROUP(PriorityGroup));
mbed_official 87:085cde657901 187
mbed_official 87:085cde657901 188 /* Set the PRIGROUP[10:8] bits according to the PriorityGroup parameter value */
mbed_official 87:085cde657901 189 NVIC_SetPriorityGrouping(PriorityGroup);
mbed_official 87:085cde657901 190 }
mbed_official 87:085cde657901 191
mbed_official 87:085cde657901 192 /**
mbed_official 87:085cde657901 193 * @brief Sets the priority of an interrupt.
mbed_official 87:085cde657901 194 * @param IRQn: External interrupt number
mbed_official 87:085cde657901 195 * This parameter can be an enumerator of @ref IRQn_Type enumeration
mbed_official 87:085cde657901 196 * (For the complete STM32 Devices IRQ Channels list, please refer to stm32f4xx.h file)
mbed_official 87:085cde657901 197 * @param PreemptPriority: The pre-emption priority for the IRQn channel.
mbed_official 87:085cde657901 198 * This parameter can be a value between 0 and 15
mbed_official 87:085cde657901 199 * A lower priority value indicates a higher priority
mbed_official 87:085cde657901 200 * @param SubPriority: the subpriority level for the IRQ channel.
mbed_official 87:085cde657901 201 * This parameter can be a value between 0 and 15
mbed_official 87:085cde657901 202 * A lower priority value indicates a higher priority.
mbed_official 87:085cde657901 203 * @retval None
mbed_official 87:085cde657901 204 */
mbed_official 87:085cde657901 205 void HAL_NVIC_SetPriority(IRQn_Type IRQn, uint32_t PreemptPriority, uint32_t SubPriority)
mbed_official 87:085cde657901 206 {
mbed_official 87:085cde657901 207 uint32_t prioritygroup = 0x00;
mbed_official 87:085cde657901 208
mbed_official 87:085cde657901 209 /* Check the parameters */
mbed_official 87:085cde657901 210 assert_param(IS_NVIC_SUB_PRIORITY(SubPriority));
mbed_official 87:085cde657901 211 assert_param(IS_NVIC_PREEMPTION_PRIORITY(PreemptPriority));
mbed_official 87:085cde657901 212
mbed_official 87:085cde657901 213 prioritygroup = NVIC_GetPriorityGrouping();
mbed_official 87:085cde657901 214
mbed_official 87:085cde657901 215 NVIC_SetPriority(IRQn, NVIC_EncodePriority(prioritygroup, PreemptPriority, SubPriority));
mbed_official 87:085cde657901 216 }
mbed_official 87:085cde657901 217
mbed_official 87:085cde657901 218 /**
mbed_official 87:085cde657901 219 * @brief Enables a device specific interrupt in the NVIC interrupt controller.
mbed_official 87:085cde657901 220 * @note To configure interrupts priority correctly, the NVIC_PriorityGroupConfig()
mbed_official 87:085cde657901 221 * function should be called before.
mbed_official 87:085cde657901 222 * @param IRQn External interrupt number
mbed_official 87:085cde657901 223 * This parameter can be an enumerator of @ref IRQn_Type enumeration
mbed_official 87:085cde657901 224 * (For the complete STM32 Devices IRQ Channels list, please refer to stm32f4xx.h file)
mbed_official 87:085cde657901 225 * @retval None
mbed_official 87:085cde657901 226 */
mbed_official 87:085cde657901 227 void HAL_NVIC_EnableIRQ(IRQn_Type IRQn)
mbed_official 87:085cde657901 228 {
mbed_official 87:085cde657901 229 /* Enable interrupt */
mbed_official 87:085cde657901 230 NVIC_EnableIRQ(IRQn);
mbed_official 87:085cde657901 231 }
mbed_official 87:085cde657901 232
mbed_official 87:085cde657901 233 /**
mbed_official 87:085cde657901 234 * @brief Disables a device specific interrupt in the NVIC interrupt controller.
mbed_official 87:085cde657901 235 * @param IRQn External interrupt number
mbed_official 87:085cde657901 236 * This parameter can be an enumerator of @ref IRQn_Type enumeration
mbed_official 87:085cde657901 237 * (For the complete STM32 Devices IRQ Channels list, please refer to stm32f4xx.h file)
mbed_official 87:085cde657901 238 * @retval None
mbed_official 87:085cde657901 239 */
mbed_official 87:085cde657901 240 void HAL_NVIC_DisableIRQ(IRQn_Type IRQn)
mbed_official 87:085cde657901 241 {
mbed_official 87:085cde657901 242 /* Disable interrupt */
mbed_official 87:085cde657901 243 NVIC_DisableIRQ(IRQn);
mbed_official 87:085cde657901 244 }
mbed_official 87:085cde657901 245
mbed_official 87:085cde657901 246 /**
mbed_official 87:085cde657901 247 * @brief Initiates a system reset request to reset the MCU.
mbed_official 87:085cde657901 248 * @param None
mbed_official 87:085cde657901 249 * @retval None
mbed_official 87:085cde657901 250 */
mbed_official 87:085cde657901 251 void HAL_NVIC_SystemReset(void)
mbed_official 87:085cde657901 252 {
mbed_official 87:085cde657901 253 /* System Reset */
mbed_official 87:085cde657901 254 NVIC_SystemReset();
mbed_official 87:085cde657901 255 }
mbed_official 87:085cde657901 256
mbed_official 87:085cde657901 257 /**
mbed_official 87:085cde657901 258 * @brief Initializes the System Timer and its interrupt, and starts the System Tick Timer.
mbed_official 87:085cde657901 259 * Counter is in free running mode to generate periodic interrupts.
mbed_official 87:085cde657901 260 * @param TicksNumb: Specifies the ticks Number of ticks between two interrupts.
mbed_official 87:085cde657901 261 * @retval status: - 0 Function succeeded.
mbed_official 87:085cde657901 262 * - 1 Function failed.
mbed_official 87:085cde657901 263 */
mbed_official 87:085cde657901 264 uint32_t HAL_SYSTICK_Config(uint32_t TicksNumb)
mbed_official 87:085cde657901 265 {
mbed_official 87:085cde657901 266 return SysTick_Config(TicksNumb);
mbed_official 87:085cde657901 267 }
mbed_official 87:085cde657901 268 /**
mbed_official 87:085cde657901 269 * @}
mbed_official 87:085cde657901 270 */
mbed_official 87:085cde657901 271
mbed_official 87:085cde657901 272 /** @defgroup CORTEX_Group2 Peripheral Control functions
mbed_official 87:085cde657901 273 * @brief Cortex control functions
mbed_official 87:085cde657901 274 *
mbed_official 87:085cde657901 275 @verbatim
mbed_official 87:085cde657901 276 ==============================================================================
mbed_official 87:085cde657901 277 ##### Peripheral Control functions #####
mbed_official 87:085cde657901 278 ==============================================================================
mbed_official 87:085cde657901 279 [..]
mbed_official 87:085cde657901 280 This subsection provides a set of functions allowing to control the CORTEX
mbed_official 87:085cde657901 281 (NVIC, SYSTICK) functionalities.
mbed_official 87:085cde657901 282
mbed_official 87:085cde657901 283
mbed_official 87:085cde657901 284 @endverbatim
mbed_official 87:085cde657901 285 * @{
mbed_official 87:085cde657901 286 */
mbed_official 87:085cde657901 287
mbed_official 87:085cde657901 288 /**
mbed_official 87:085cde657901 289 * @brief Gets the priority grouping field from the NVIC Interrupt Controller.
mbed_official 87:085cde657901 290 * @param None
mbed_official 87:085cde657901 291 * @retval Priority grouping field (SCB->AIRCR [10:8] PRIGROUP field)
mbed_official 87:085cde657901 292 */
mbed_official 87:085cde657901 293 uint32_t HAL_NVIC_GetPriorityGrouping(void)
mbed_official 87:085cde657901 294 {
mbed_official 87:085cde657901 295 /* Get the PRIGROUP[10:8] field value */
mbed_official 87:085cde657901 296 return NVIC_GetPriorityGrouping();
mbed_official 87:085cde657901 297 }
mbed_official 87:085cde657901 298
mbed_official 87:085cde657901 299 /**
mbed_official 87:085cde657901 300 * @brief Gets the priority of an interrupt.
mbed_official 87:085cde657901 301 * @param IRQn: External interrupt number
mbed_official 87:085cde657901 302 * This parameter can be an enumerator of @ref IRQn_Type enumeration
mbed_official 87:085cde657901 303 * (For the complete STM32 Devices IRQ Channels list, please refer to stm32f4xx.h file)
mbed_official 87:085cde657901 304 * @param PriorityGroup: the priority grouping bits length.
mbed_official 87:085cde657901 305 * This parameter can be one of the following values:
mbed_official 87:085cde657901 306 * @arg NVIC_PRIORITYGROUP_0: 0 bits for pre-emption priority
mbed_official 87:085cde657901 307 * 4 bits for subpriority
mbed_official 87:085cde657901 308 * @arg NVIC_PRIORITYGROUP_1: 1 bits for pre-emption priority
mbed_official 87:085cde657901 309 * 3 bits for subpriority
mbed_official 87:085cde657901 310 * @arg NVIC_PRIORITYGROUP_2: 2 bits for pre-emption priority
mbed_official 87:085cde657901 311 * 2 bits for subpriority
mbed_official 87:085cde657901 312 * @arg NVIC_PRIORITYGROUP_3: 3 bits for pre-emption priority
mbed_official 87:085cde657901 313 * 1 bits for subpriority
mbed_official 87:085cde657901 314 * @arg NVIC_PRIORITYGROUP_4: 4 bits for pre-emption priority
mbed_official 87:085cde657901 315 * 0 bits for subpriority
mbed_official 87:085cde657901 316 * @param pPreemptPriority: Pointer on the Preemptive priority value (starting from 0).
mbed_official 87:085cde657901 317 * @param pSubPriority: Pointer on the Subpriority value (starting from 0).
mbed_official 87:085cde657901 318 * @retval None
mbed_official 87:085cde657901 319 */
mbed_official 87:085cde657901 320 void HAL_NVIC_GetPriority(IRQn_Type IRQn, uint32_t PriorityGroup, uint32_t *pPreemptPriority, uint32_t *pSubPriority)
mbed_official 87:085cde657901 321 {
mbed_official 87:085cde657901 322 /* Check the parameters */
mbed_official 87:085cde657901 323 assert_param(IS_NVIC_PRIORITY_GROUP(PriorityGroup));
mbed_official 87:085cde657901 324 /* Get priority for Cortex-M system or device specific interrupts */
mbed_official 87:085cde657901 325 NVIC_DecodePriority(NVIC_GetPriority(IRQn), PriorityGroup, pPreemptPriority, pSubPriority);
mbed_official 87:085cde657901 326 }
mbed_official 87:085cde657901 327
mbed_official 87:085cde657901 328 /**
mbed_official 87:085cde657901 329 * @brief Sets Pending bit of an external interrupt.
mbed_official 87:085cde657901 330 * @param IRQn External interrupt number
mbed_official 87:085cde657901 331 * This parameter can be an enumerator of @ref IRQn_Type enumeration
mbed_official 87:085cde657901 332 * (For the complete STM32 Devices IRQ Channels list, please refer to stm32f4xx.h file)
mbed_official 87:085cde657901 333 * @retval None
mbed_official 87:085cde657901 334 */
mbed_official 87:085cde657901 335 void HAL_NVIC_SetPendingIRQ(IRQn_Type IRQn)
mbed_official 87:085cde657901 336 {
mbed_official 87:085cde657901 337 /* Set interrupt pending */
mbed_official 87:085cde657901 338 NVIC_SetPendingIRQ(IRQn);
mbed_official 87:085cde657901 339 }
mbed_official 87:085cde657901 340
mbed_official 87:085cde657901 341 /**
mbed_official 87:085cde657901 342 * @brief Gets Pending Interrupt (reads the pending register in the NVIC
mbed_official 87:085cde657901 343 * and returns the pending bit for the specified interrupt).
mbed_official 87:085cde657901 344 * @param IRQn External interrupt number
mbed_official 87:085cde657901 345 * This parameter can be an enumerator of @ref IRQn_Type enumeration
mbed_official 87:085cde657901 346 * (For the complete STM32 Devices IRQ Channels list, please refer to stm32f4xx.h file)
mbed_official 87:085cde657901 347 * @retval status: - 0 Interrupt status is not pending.
mbed_official 87:085cde657901 348 * - 1 Interrupt status is pending.
mbed_official 87:085cde657901 349 */
mbed_official 87:085cde657901 350 uint32_t HAL_NVIC_GetPendingIRQ(IRQn_Type IRQn)
mbed_official 87:085cde657901 351 {
mbed_official 87:085cde657901 352 /* Return 1 if pending else 0 */
mbed_official 87:085cde657901 353 return NVIC_GetPendingIRQ(IRQn);
mbed_official 87:085cde657901 354 }
mbed_official 87:085cde657901 355
mbed_official 87:085cde657901 356 /**
mbed_official 87:085cde657901 357 * @brief Clears the pending bit of an external interrupt.
mbed_official 87:085cde657901 358 * @param IRQn External interrupt number
mbed_official 87:085cde657901 359 * This parameter can be an enumerator of @ref IRQn_Type enumeration
mbed_official 87:085cde657901 360 * (For the complete STM32 Devices IRQ Channels list, please refer to stm32f4xx.h file)
mbed_official 87:085cde657901 361 * @retval None
mbed_official 87:085cde657901 362 */
mbed_official 87:085cde657901 363 void HAL_NVIC_ClearPendingIRQ(IRQn_Type IRQn)
mbed_official 87:085cde657901 364 {
mbed_official 87:085cde657901 365 /* Clear pending interrupt */
mbed_official 87:085cde657901 366 NVIC_ClearPendingIRQ(IRQn);
mbed_official 87:085cde657901 367 }
mbed_official 87:085cde657901 368
mbed_official 87:085cde657901 369 /**
mbed_official 87:085cde657901 370 * @brief Gets active interrupt ( reads the active register in NVIC and returns the active bit).
mbed_official 87:085cde657901 371 * @param IRQn External interrupt number
mbed_official 87:085cde657901 372 * This parameter can be an enumerator of @ref IRQn_Type enumeration
mbed_official 87:085cde657901 373 * (For the complete STM32 Devices IRQ Channels list, please refer to stm32f4xx.h file)
mbed_official 87:085cde657901 374 * @retval status: - 0 Interrupt status is not pending.
mbed_official 87:085cde657901 375 * - 1 Interrupt status is pending.
mbed_official 87:085cde657901 376 */
mbed_official 87:085cde657901 377 uint32_t HAL_NVIC_GetActive(IRQn_Type IRQn)
mbed_official 87:085cde657901 378 {
mbed_official 87:085cde657901 379 /* Return 1 if active else 0 */
mbed_official 87:085cde657901 380 return NVIC_GetActive(IRQn);
mbed_official 87:085cde657901 381 }
mbed_official 87:085cde657901 382
mbed_official 87:085cde657901 383 /**
mbed_official 87:085cde657901 384 * @brief Configures the SysTick clock source.
mbed_official 87:085cde657901 385 * @param CLKSource: specifies the SysTick clock source.
mbed_official 87:085cde657901 386 * This parameter can be one of the following values:
mbed_official 87:085cde657901 387 * @arg SYSTICK_CLKSOURCE_HCLK_DIV8: AHB clock divided by 8 selected as SysTick clock source.
mbed_official 87:085cde657901 388 * @arg SYSTICK_CLKSOURCE_HCLK: AHB clock selected as SysTick clock source.
mbed_official 87:085cde657901 389 * @retval None
mbed_official 87:085cde657901 390 */
mbed_official 87:085cde657901 391 void HAL_SYSTICK_CLKSourceConfig(uint32_t CLKSource)
mbed_official 87:085cde657901 392 {
mbed_official 87:085cde657901 393 /* Check the parameters */
mbed_official 87:085cde657901 394 assert_param(IS_SYSTICK_CLK_SOURCE(CLKSource));
mbed_official 87:085cde657901 395 if (CLKSource == SYSTICK_CLKSOURCE_HCLK)
mbed_official 87:085cde657901 396 {
mbed_official 87:085cde657901 397 SysTick->CTRL |= SYSTICK_CLKSOURCE_HCLK;
mbed_official 87:085cde657901 398 }
mbed_official 87:085cde657901 399 else
mbed_official 87:085cde657901 400 {
mbed_official 87:085cde657901 401 SysTick->CTRL &= ~SYSTICK_CLKSOURCE_HCLK;
mbed_official 87:085cde657901 402 }
mbed_official 87:085cde657901 403 }
mbed_official 87:085cde657901 404
mbed_official 87:085cde657901 405 /**
mbed_official 87:085cde657901 406 * @brief This function handles SYSTICK interrupt request.
mbed_official 87:085cde657901 407 * @param None
mbed_official 87:085cde657901 408 * @retval None
mbed_official 87:085cde657901 409 */
mbed_official 87:085cde657901 410 void HAL_SYSTICK_IRQHandler(void)
mbed_official 87:085cde657901 411 {
mbed_official 87:085cde657901 412 HAL_SYSTICK_Callback();
mbed_official 87:085cde657901 413 }
mbed_official 87:085cde657901 414
mbed_official 87:085cde657901 415 /**
mbed_official 87:085cde657901 416 * @brief SYSTICK callback.
mbed_official 87:085cde657901 417 * @param None
mbed_official 87:085cde657901 418 * @retval None
mbed_official 87:085cde657901 419 */
mbed_official 87:085cde657901 420 __weak void HAL_SYSTICK_Callback(void)
mbed_official 87:085cde657901 421 {
mbed_official 87:085cde657901 422 /* NOTE : This function Should not be modified, when the callback is needed,
mbed_official 87:085cde657901 423 the HAL_SYSTICK_Callback could be implemented in the user file
mbed_official 87:085cde657901 424 */
mbed_official 87:085cde657901 425 }
mbed_official 87:085cde657901 426
mbed_official 87:085cde657901 427 /**
mbed_official 87:085cde657901 428 * @}
mbed_official 87:085cde657901 429 */
mbed_official 87:085cde657901 430
mbed_official 87:085cde657901 431 /**
mbed_official 87:085cde657901 432 * @}
mbed_official 87:085cde657901 433 */
mbed_official 87:085cde657901 434
mbed_official 87:085cde657901 435 #endif /* HAL_CORTEX_MODULE_ENABLED */
mbed_official 87:085cde657901 436 /**
mbed_official 87:085cde657901 437 * @}
mbed_official 87:085cde657901 438 */
mbed_official 87:085cde657901 439
mbed_official 87:085cde657901 440 /**
mbed_official 87:085cde657901 441 * @}
mbed_official 87:085cde657901 442 */
mbed_official 87:085cde657901 443
mbed_official 87:085cde657901 444 /************************ (C) COPYRIGHT STMicroelectronics *****END OF FILE****/