shao ziyang / mbed-src-kl05

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targets/cmsis/TARGET_STM/TARGET_NUCLEO_F411RE/stm32f4xx_hal_cortex.c@323:9e901b0a5aa1, 2014-09-13 (annotated)

Committer:
shaoziyang
Date:
Sat Sep 13 14:25:46 2014 +0000
Revision:
323:9e901b0a5aa1
Parent:
235:685d5f11838f 
test with CLOCK_SETUP = 0

Who changed what in which revision?

UserRevisionLine numberNew contents of line
mbed_official 235:685d5f11838f 1 /**
mbed_official 235:685d5f11838f 2 ******************************************************************************
mbed_official 235:685d5f11838f 3 * @file stm32f4xx_hal_cortex.c
mbed_official 235:685d5f11838f 4 * @author MCD Application Team
mbed_official 235:685d5f11838f 5 * @version V1.1.0
mbed_official 235:685d5f11838f 6 * @date 19-June-2014
mbed_official 235:685d5f11838f 7 * @brief CORTEX HAL module driver.
mbed_official 235:685d5f11838f 8 * This file provides firmware functions to manage the following
mbed_official 235:685d5f11838f 9 * functionalities of the CORTEX:
mbed_official 235:685d5f11838f 10 * + Initialization and de-initialization functions
mbed_official 235:685d5f11838f 11 * + Peripheral Control functions
mbed_official 235:685d5f11838f 12 *
mbed_official 235:685d5f11838f 13 @verbatim
mbed_official 235:685d5f11838f 14 ==============================================================================
mbed_official 235:685d5f11838f 15 ##### How to use this driver #####
mbed_official 235:685d5f11838f 16 ==============================================================================
mbed_official 235:685d5f11838f 17
mbed_official 235:685d5f11838f 18 [..]
mbed_official 235:685d5f11838f 19 *** How to configure Interrupts using CORTEX HAL driver ***
mbed_official 235:685d5f11838f 20 ===========================================================
mbed_official 235:685d5f11838f 21 [..]
mbed_official 235:685d5f11838f 22 This section provides functions allowing to configure the NVIC interrupts (IRQ).
mbed_official 235:685d5f11838f 23 The Cortex-M4 exceptions are managed by CMSIS functions.
mbed_official 235:685d5f11838f 24
mbed_official 235:685d5f11838f 25 (#) Configure the NVIC Priority Grouping using HAL_NVIC_SetPriorityGrouping()
mbed_official 235:685d5f11838f 26 function according to the following table.
mbed_official 235:685d5f11838f 27 (#) Configure the priority of the selected IRQ Channels using HAL_NVIC_SetPriority().
mbed_official 235:685d5f11838f 28 (#) Enable the selected IRQ Channels using HAL_NVIC_EnableIRQ().
mbed_official 235:685d5f11838f 29 (#) please refer to programing manual for details in how to configure priority.
mbed_official 235:685d5f11838f 30
mbed_official 235:685d5f11838f 31 -@- When the NVIC_PRIORITYGROUP_0 is selected, IRQ pre-emption is no more possible.
mbed_official 235:685d5f11838f 32 The pending IRQ priority will be managed only by the sub priority.
mbed_official 235:685d5f11838f 33
mbed_official 235:685d5f11838f 34 -@- IRQ priority order (sorted by highest to lowest priority):
mbed_official 235:685d5f11838f 35 (+@) Lowest pre-emption priority
mbed_official 235:685d5f11838f 36 (+@) Lowest sub priority
mbed_official 235:685d5f11838f 37 (+@) Lowest hardware priority (IRQ number)
mbed_official 235:685d5f11838f 38
mbed_official 235:685d5f11838f 39 [..]
mbed_official 235:685d5f11838f 40 *** How to configure Systick using CORTEX HAL driver ***
mbed_official 235:685d5f11838f 41 ========================================================
mbed_official 235:685d5f11838f 42 [..]
mbed_official 235:685d5f11838f 43 Setup SysTick Timer for time base.
mbed_official 235:685d5f11838f 44
mbed_official 235:685d5f11838f 45 (+) The HAL_SYSTICK_Config() function calls the SysTick_Config() function which
mbed_official 235:685d5f11838f 46 is a CMSIS function that:
mbed_official 235:685d5f11838f 47 (++) Configures the SysTick Reload register with value passed as function parameter.
mbed_official 235:685d5f11838f 48 (++) Configures the SysTick IRQ priority to the lowest value (0x0F).
mbed_official 235:685d5f11838f 49 (++) Resets the SysTick Counter register.
mbed_official 235:685d5f11838f 50 (++) Configures the SysTick Counter clock source to be Core Clock Source (HCLK).
mbed_official 235:685d5f11838f 51 (++) Enables the SysTick Interrupt.
mbed_official 235:685d5f11838f 52 (++) Starts the SysTick Counter.
mbed_official 235:685d5f11838f 53
mbed_official 235:685d5f11838f 54 (+) You can change the SysTick Clock source to be HCLK_Div8 by calling the macro
mbed_official 235:685d5f11838f 55 __HAL_CORTEX_SYSTICKCLK_CONFIG(SYSTICK_CLKSOURCE_HCLK_DIV8) just after the
mbed_official 235:685d5f11838f 56 HAL_SYSTICK_Config() function call. The __HAL_CORTEX_SYSTICKCLK_CONFIG() macro is defined
mbed_official 235:685d5f11838f 57 inside the stm32f4xx_hal_cortex.h file.
mbed_official 235:685d5f11838f 58
mbed_official 235:685d5f11838f 59 (+) You can change the SysTick IRQ priority by calling the
mbed_official 235:685d5f11838f 60 HAL_NVIC_SetPriority(SysTick_IRQn,...) function just after the HAL_SYSTICK_Config() function
mbed_official 235:685d5f11838f 61 call. The HAL_NVIC_SetPriority() call the NVIC_SetPriority() function which is a CMSIS function.
mbed_official 235:685d5f11838f 62
mbed_official 235:685d5f11838f 63 (+) To adjust the SysTick time base, use the following formula:
mbed_official 235:685d5f11838f 64
mbed_official 235:685d5f11838f 65 Reload Value = SysTick Counter Clock (Hz) x Desired Time base (s)
mbed_official 235:685d5f11838f 66 (++) Reload Value is the parameter to be passed for HAL_SYSTICK_Config() function
mbed_official 235:685d5f11838f 67 (++) Reload Value should not exceed 0xFFFFFF
mbed_official 235:685d5f11838f 68
mbed_official 235:685d5f11838f 69 @endverbatim
mbed_official 235:685d5f11838f 70 ******************************************************************************
mbed_official 235:685d5f11838f 71 * @attention
mbed_official 235:685d5f11838f 72 *
mbed_official 235:685d5f11838f 73 * <h2><center>&copy; COPYRIGHT(c) 2014 STMicroelectronics</center></h2>
mbed_official 235:685d5f11838f 74 *
mbed_official 235:685d5f11838f 75 * Redistribution and use in source and binary forms, with or without modification,
mbed_official 235:685d5f11838f 76 * are permitted provided that the following conditions are met:
mbed_official 235:685d5f11838f 77 * 1. Redistributions of source code must retain the above copyright notice,
mbed_official 235:685d5f11838f 78 * this list of conditions and the following disclaimer.
mbed_official 235:685d5f11838f 79 * 2. Redistributions in binary form must reproduce the above copyright notice,
mbed_official 235:685d5f11838f 80 * this list of conditions and the following disclaimer in the documentation
mbed_official 235:685d5f11838f 81 * and/or other materials provided with the distribution.
mbed_official 235:685d5f11838f 82 * 3. Neither the name of STMicroelectronics nor the names of its contributors
mbed_official 235:685d5f11838f 83 * may be used to endorse or promote products derived from this software
mbed_official 235:685d5f11838f 84 * without specific prior written permission.
mbed_official 235:685d5f11838f 85 *
mbed_official 235:685d5f11838f 86 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
mbed_official 235:685d5f11838f 87 * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
mbed_official 235:685d5f11838f 88 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
mbed_official 235:685d5f11838f 89 * DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE
mbed_official 235:685d5f11838f 90 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
mbed_official 235:685d5f11838f 91 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
mbed_official 235:685d5f11838f 92 * SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
mbed_official 235:685d5f11838f 93 * CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
mbed_official 235:685d5f11838f 94 * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
mbed_official 235:685d5f11838f 95 * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
mbed_official 235:685d5f11838f 96 *
mbed_official 235:685d5f11838f 97 ******************************************************************************
mbed_official 235:685d5f11838f 98 */
mbed_official 235:685d5f11838f 99
mbed_official 235:685d5f11838f 100 /* Includes ------------------------------------------------------------------*/
mbed_official 235:685d5f11838f 101 #include "stm32f4xx_hal.h"
mbed_official 235:685d5f11838f 102
mbed_official 235:685d5f11838f 103 /** @addtogroup STM32F4xx_HAL_Driver
mbed_official 235:685d5f11838f 104 * @{
mbed_official 235:685d5f11838f 105 */
mbed_official 235:685d5f11838f 106
mbed_official 235:685d5f11838f 107 /** @defgroup CORTEX
mbed_official 235:685d5f11838f 108 * @brief CORTEX HAL module driver
mbed_official 235:685d5f11838f 109 * @{
mbed_official 235:685d5f11838f 110 */
mbed_official 235:685d5f11838f 111
mbed_official 235:685d5f11838f 112 #ifdef HAL_CORTEX_MODULE_ENABLED
mbed_official 235:685d5f11838f 113
mbed_official 235:685d5f11838f 114 /* Private typedef -----------------------------------------------------------*/
mbed_official 235:685d5f11838f 115 /* Private define ------------------------------------------------------------*/
mbed_official 235:685d5f11838f 116 /* Private macro -------------------------------------------------------------*/
mbed_official 235:685d5f11838f 117 /* Private variables ---------------------------------------------------------*/
mbed_official 235:685d5f11838f 118 /* Private function prototypes -----------------------------------------------*/
mbed_official 235:685d5f11838f 119 /* Private functions ---------------------------------------------------------*/
mbed_official 235:685d5f11838f 120
mbed_official 235:685d5f11838f 121 /** @defgroup CORTEX_Private_Functions
mbed_official 235:685d5f11838f 122 * @{
mbed_official 235:685d5f11838f 123 */
mbed_official 235:685d5f11838f 124
mbed_official 235:685d5f11838f 125
mbed_official 235:685d5f11838f 126 /** @defgroup CORTEX_Group1 Initialization and de-initialization functions
mbed_official 235:685d5f11838f 127 * @brief Initialization and Configuration functions
mbed_official 235:685d5f11838f 128 *
mbed_official 235:685d5f11838f 129 @verbatim
mbed_official 235:685d5f11838f 130 ==============================================================================
mbed_official 235:685d5f11838f 131 ##### Initialization and de-initialization functions #####
mbed_official 235:685d5f11838f 132 ==============================================================================
mbed_official 235:685d5f11838f 133 [..]
mbed_official 235:685d5f11838f 134 This section provides the CORTEX HAL driver functions allowing to configure Interrupts
mbed_official 235:685d5f11838f 135 Systick functionalities
mbed_official 235:685d5f11838f 136
mbed_official 235:685d5f11838f 137 @endverbatim
mbed_official 235:685d5f11838f 138 * @{
mbed_official 235:685d5f11838f 139 */
mbed_official 235:685d5f11838f 140
mbed_official 235:685d5f11838f 141
mbed_official 235:685d5f11838f 142 /**
mbed_official 235:685d5f11838f 143 * @brief Sets the priority grouping field (pre-emption priority and subpriority)
mbed_official 235:685d5f11838f 144 * using the required unlock sequence.
mbed_official 235:685d5f11838f 145 * @param PriorityGroup: The priority grouping bits length.
mbed_official 235:685d5f11838f 146 * This parameter can be one of the following values:
mbed_official 235:685d5f11838f 147 * @arg NVIC_PRIORITYGROUP_0: 0 bits for pre-emption priority
mbed_official 235:685d5f11838f 148 * 4 bits for subpriority
mbed_official 235:685d5f11838f 149 * @arg NVIC_PRIORITYGROUP_1: 1 bits for pre-emption priority
mbed_official 235:685d5f11838f 150 * 3 bits for subpriority
mbed_official 235:685d5f11838f 151 * @arg NVIC_PRIORITYGROUP_2: 2 bits for pre-emption priority
mbed_official 235:685d5f11838f 152 * 2 bits for subpriority
mbed_official 235:685d5f11838f 153 * @arg NVIC_PRIORITYGROUP_3: 3 bits for pre-emption priority
mbed_official 235:685d5f11838f 154 * 1 bits for subpriority
mbed_official 235:685d5f11838f 155 * @arg NVIC_PRIORITYGROUP_4: 4 bits for pre-emption priority
mbed_official 235:685d5f11838f 156 * 0 bits for subpriority
mbed_official 235:685d5f11838f 157 * @note When the NVIC_PriorityGroup_0 is selected, IRQ pre-emption is no more possible.
mbed_official 235:685d5f11838f 158 * The pending IRQ priority will be managed only by the subpriority.
mbed_official 235:685d5f11838f 159 * @retval None
mbed_official 235:685d5f11838f 160 */
mbed_official 235:685d5f11838f 161 void HAL_NVIC_SetPriorityGrouping(uint32_t PriorityGroup)
mbed_official 235:685d5f11838f 162 {
mbed_official 235:685d5f11838f 163 /* Check the parameters */
mbed_official 235:685d5f11838f 164 assert_param(IS_NVIC_PRIORITY_GROUP(PriorityGroup));
mbed_official 235:685d5f11838f 165
mbed_official 235:685d5f11838f 166 /* Set the PRIGROUP[10:8] bits according to the PriorityGroup parameter value */
mbed_official 235:685d5f11838f 167 NVIC_SetPriorityGrouping(PriorityGroup);
mbed_official 235:685d5f11838f 168 }
mbed_official 235:685d5f11838f 169
mbed_official 235:685d5f11838f 170 /**
mbed_official 235:685d5f11838f 171 * @brief Sets the priority of an interrupt.
mbed_official 235:685d5f11838f 172 * @param IRQn: External interrupt number.
mbed_official 235:685d5f11838f 173 * This parameter can be an enumerator of IRQn_Type enumeration
mbed_official 235:685d5f11838f 174 * (For the complete STM32 Devices IRQ Channels list, please refer to stm32f4xx.h file)
mbed_official 235:685d5f11838f 175 * @param PreemptPriority: The pre-emption priority for the IRQn channel.
mbed_official 235:685d5f11838f 176 * This parameter can be a value between 0 and 15
mbed_official 235:685d5f11838f 177 * A lower priority value indicates a higher priority
mbed_official 235:685d5f11838f 178 * @param SubPriority: the subpriority level for the IRQ channel.
mbed_official 235:685d5f11838f 179 * This parameter can be a value between 0 and 15
mbed_official 235:685d5f11838f 180 * A lower priority value indicates a higher priority.
mbed_official 235:685d5f11838f 181 * @retval None
mbed_official 235:685d5f11838f 182 */
mbed_official 235:685d5f11838f 183 void HAL_NVIC_SetPriority(IRQn_Type IRQn, uint32_t PreemptPriority, uint32_t SubPriority)
mbed_official 235:685d5f11838f 184 {
mbed_official 235:685d5f11838f 185 uint32_t prioritygroup = 0x00;
mbed_official 235:685d5f11838f 186
mbed_official 235:685d5f11838f 187 /* Check the parameters */
mbed_official 235:685d5f11838f 188 assert_param(IS_NVIC_SUB_PRIORITY(SubPriority));
mbed_official 235:685d5f11838f 189 assert_param(IS_NVIC_PREEMPTION_PRIORITY(PreemptPriority));
mbed_official 235:685d5f11838f 190
mbed_official 235:685d5f11838f 191 prioritygroup = NVIC_GetPriorityGrouping();
mbed_official 235:685d5f11838f 192
mbed_official 235:685d5f11838f 193 NVIC_SetPriority(IRQn, NVIC_EncodePriority(prioritygroup, PreemptPriority, SubPriority));
mbed_official 235:685d5f11838f 194 }
mbed_official 235:685d5f11838f 195
mbed_official 235:685d5f11838f 196 /**
mbed_official 235:685d5f11838f 197 * @brief Enables a device specific interrupt in the NVIC interrupt controller.
mbed_official 235:685d5f11838f 198 * @note To configure interrupts priority correctly, the NVIC_PriorityGroupConfig()
mbed_official 235:685d5f11838f 199 * function should be called before.
mbed_official 235:685d5f11838f 200 * @param IRQn External interrupt number.
mbed_official 235:685d5f11838f 201 * This parameter can be an enumerator of IRQn_Type enumeration
mbed_official 235:685d5f11838f 202 * (For the complete STM32 Devices IRQ Channels list, please refer to stm32f4xx.h file)
mbed_official 235:685d5f11838f 203 * @retval None
mbed_official 235:685d5f11838f 204 */
mbed_official 235:685d5f11838f 205 void HAL_NVIC_EnableIRQ(IRQn_Type IRQn)
mbed_official 235:685d5f11838f 206 {
mbed_official 235:685d5f11838f 207 /* Enable interrupt */
mbed_official 235:685d5f11838f 208 NVIC_EnableIRQ(IRQn);
mbed_official 235:685d5f11838f 209 }
mbed_official 235:685d5f11838f 210
mbed_official 235:685d5f11838f 211 /**
mbed_official 235:685d5f11838f 212 * @brief Disables a device specific interrupt in the NVIC interrupt controller.
mbed_official 235:685d5f11838f 213 * @param IRQn External interrupt number.
mbed_official 235:685d5f11838f 214 * This parameter can be an enumerator of IRQn_Type enumeration
mbed_official 235:685d5f11838f 215 * (For the complete STM32 Devices IRQ Channels list, please refer to stm32f4xx.h file)
mbed_official 235:685d5f11838f 216 * @retval None
mbed_official 235:685d5f11838f 217 */
mbed_official 235:685d5f11838f 218 void HAL_NVIC_DisableIRQ(IRQn_Type IRQn)
mbed_official 235:685d5f11838f 219 {
mbed_official 235:685d5f11838f 220 /* Disable interrupt */
mbed_official 235:685d5f11838f 221 NVIC_DisableIRQ(IRQn);
mbed_official 235:685d5f11838f 222 }
mbed_official 235:685d5f11838f 223
mbed_official 235:685d5f11838f 224 /**
mbed_official 235:685d5f11838f 225 * @brief Initiates a system reset request to reset the MCU.
mbed_official 235:685d5f11838f 226 * @param None
mbed_official 235:685d5f11838f 227 * @retval None
mbed_official 235:685d5f11838f 228 */
mbed_official 235:685d5f11838f 229 void HAL_NVIC_SystemReset(void)
mbed_official 235:685d5f11838f 230 {
mbed_official 235:685d5f11838f 231 /* System Reset */
mbed_official 235:685d5f11838f 232 NVIC_SystemReset();
mbed_official 235:685d5f11838f 233 }
mbed_official 235:685d5f11838f 234
mbed_official 235:685d5f11838f 235 /**
mbed_official 235:685d5f11838f 236 * @brief Initializes the System Timer and its interrupt, and starts the System Tick Timer.
mbed_official 235:685d5f11838f 237 * Counter is in free running mode to generate periodic interrupts.
mbed_official 235:685d5f11838f 238 * @param TicksNumb: Specifies the ticks Number of ticks between two interrupts.
mbed_official 235:685d5f11838f 239 * @retval status: - 0 Function succeeded.
mbed_official 235:685d5f11838f 240 * - 1 Function failed.
mbed_official 235:685d5f11838f 241 */
mbed_official 235:685d5f11838f 242 uint32_t HAL_SYSTICK_Config(uint32_t TicksNumb)
mbed_official 235:685d5f11838f 243 {
mbed_official 235:685d5f11838f 244 return SysTick_Config(TicksNumb);
mbed_official 235:685d5f11838f 245 }
mbed_official 235:685d5f11838f 246 /**
mbed_official 235:685d5f11838f 247 * @}
mbed_official 235:685d5f11838f 248 */
mbed_official 235:685d5f11838f 249
mbed_official 235:685d5f11838f 250 /** @defgroup CORTEX_Group2 Peripheral Control functions
mbed_official 235:685d5f11838f 251 * @brief Cortex control functions
mbed_official 235:685d5f11838f 252 *
mbed_official 235:685d5f11838f 253 @verbatim
mbed_official 235:685d5f11838f 254 ==============================================================================
mbed_official 235:685d5f11838f 255 ##### Peripheral Control functions #####
mbed_official 235:685d5f11838f 256 ==============================================================================
mbed_official 235:685d5f11838f 257 [..]
mbed_official 235:685d5f11838f 258 This subsection provides a set of functions allowing to control the CORTEX
mbed_official 235:685d5f11838f 259 (NVIC, SYSTICK) functionalities.
mbed_official 235:685d5f11838f 260
mbed_official 235:685d5f11838f 261
mbed_official 235:685d5f11838f 262 @endverbatim
mbed_official 235:685d5f11838f 263 * @{
mbed_official 235:685d5f11838f 264 */
mbed_official 235:685d5f11838f 265
mbed_official 235:685d5f11838f 266 /**
mbed_official 235:685d5f11838f 267 * @brief Gets the priority grouping field from the NVIC Interrupt Controller.
mbed_official 235:685d5f11838f 268 * @param None
mbed_official 235:685d5f11838f 269 * @retval Priority grouping field (SCB->AIRCR [10:8] PRIGROUP field)
mbed_official 235:685d5f11838f 270 */
mbed_official 235:685d5f11838f 271 uint32_t HAL_NVIC_GetPriorityGrouping(void)
mbed_official 235:685d5f11838f 272 {
mbed_official 235:685d5f11838f 273 /* Get the PRIGROUP[10:8] field value */
mbed_official 235:685d5f11838f 274 return NVIC_GetPriorityGrouping();
mbed_official 235:685d5f11838f 275 }
mbed_official 235:685d5f11838f 276
mbed_official 235:685d5f11838f 277 /**
mbed_official 235:685d5f11838f 278 * @brief Gets the priority of an interrupt.
mbed_official 235:685d5f11838f 279 * @param IRQn: External interrupt number.
mbed_official 235:685d5f11838f 280 * This parameter can be an enumerator of IRQn_Type enumeration
mbed_official 235:685d5f11838f 281 * (For the complete STM32 Devices IRQ Channels list, please refer to stm32f4xx.h file)
mbed_official 235:685d5f11838f 282 * @param PriorityGroup: the priority grouping bits length.
mbed_official 235:685d5f11838f 283 * This parameter can be one of the following values:
mbed_official 235:685d5f11838f 284 * @arg NVIC_PRIORITYGROUP_0: 0 bits for pre-emption priority
mbed_official 235:685d5f11838f 285 * 4 bits for subpriority
mbed_official 235:685d5f11838f 286 * @arg NVIC_PRIORITYGROUP_1: 1 bits for pre-emption priority
mbed_official 235:685d5f11838f 287 * 3 bits for subpriority
mbed_official 235:685d5f11838f 288 * @arg NVIC_PRIORITYGROUP_2: 2 bits for pre-emption priority
mbed_official 235:685d5f11838f 289 * 2 bits for subpriority
mbed_official 235:685d5f11838f 290 * @arg NVIC_PRIORITYGROUP_3: 3 bits for pre-emption priority
mbed_official 235:685d5f11838f 291 * 1 bits for subpriority
mbed_official 235:685d5f11838f 292 * @arg NVIC_PRIORITYGROUP_4: 4 bits for pre-emption priority
mbed_official 235:685d5f11838f 293 * 0 bits for subpriority
mbed_official 235:685d5f11838f 294 * @param pPreemptPriority: Pointer on the Preemptive priority value (starting from 0).
mbed_official 235:685d5f11838f 295 * @param pSubPriority: Pointer on the Subpriority value (starting from 0).
mbed_official 235:685d5f11838f 296 * @retval None
mbed_official 235:685d5f11838f 297 */
mbed_official 235:685d5f11838f 298 void HAL_NVIC_GetPriority(IRQn_Type IRQn, uint32_t PriorityGroup, uint32_t *pPreemptPriority, uint32_t *pSubPriority)
mbed_official 235:685d5f11838f 299 {
mbed_official 235:685d5f11838f 300 /* Check the parameters */
mbed_official 235:685d5f11838f 301 assert_param(IS_NVIC_PRIORITY_GROUP(PriorityGroup));
mbed_official 235:685d5f11838f 302 /* Get priority for Cortex-M system or device specific interrupts */
mbed_official 235:685d5f11838f 303 NVIC_DecodePriority(NVIC_GetPriority(IRQn), PriorityGroup, pPreemptPriority, pSubPriority);
mbed_official 235:685d5f11838f 304 }
mbed_official 235:685d5f11838f 305
mbed_official 235:685d5f11838f 306 /**
mbed_official 235:685d5f11838f 307 * @brief Sets Pending bit of an external interrupt.
mbed_official 235:685d5f11838f 308 * @param IRQn External interrupt number
mbed_official 235:685d5f11838f 309 * This parameter can be an enumerator of @ref IRQn_Type enumeration
mbed_official 235:685d5f11838f 310 * (For the complete STM32 Devices IRQ Channels list, please refer to stm32f4xx.h file)
mbed_official 235:685d5f11838f 311 * @retval None
mbed_official 235:685d5f11838f 312 */
mbed_official 235:685d5f11838f 313 void HAL_NVIC_SetPendingIRQ(IRQn_Type IRQn)
mbed_official 235:685d5f11838f 314 {
mbed_official 235:685d5f11838f 315 /* Set interrupt pending */
mbed_official 235:685d5f11838f 316 NVIC_SetPendingIRQ(IRQn);
mbed_official 235:685d5f11838f 317 }
mbed_official 235:685d5f11838f 318
mbed_official 235:685d5f11838f 319 /**
mbed_official 235:685d5f11838f 320 * @brief Gets Pending Interrupt (reads the pending register in the NVIC
mbed_official 235:685d5f11838f 321 * and returns the pending bit for the specified interrupt).
mbed_official 235:685d5f11838f 322 * @param IRQn External interrupt number.
mbed_official 235:685d5f11838f 323 * This parameter can be an enumerator of IRQn_Type enumeration
mbed_official 235:685d5f11838f 324 * (For the complete STM32 Devices IRQ Channels list, please refer to stm32f4xx.h file)
mbed_official 235:685d5f11838f 325 * @retval status: - 0 Interrupt status is not pending.
mbed_official 235:685d5f11838f 326 * - 1 Interrupt status is pending.
mbed_official 235:685d5f11838f 327 */
mbed_official 235:685d5f11838f 328 uint32_t HAL_NVIC_GetPendingIRQ(IRQn_Type IRQn)
mbed_official 235:685d5f11838f 329 {
mbed_official 235:685d5f11838f 330 /* Return 1 if pending else 0 */
mbed_official 235:685d5f11838f 331 return NVIC_GetPendingIRQ(IRQn);
mbed_official 235:685d5f11838f 332 }
mbed_official 235:685d5f11838f 333
mbed_official 235:685d5f11838f 334 /**
mbed_official 235:685d5f11838f 335 * @brief Clears the pending bit of an external interrupt.
mbed_official 235:685d5f11838f 336 * @param IRQn External interrupt number.
mbed_official 235:685d5f11838f 337 * This parameter can be an enumerator of IRQn_Type enumeration
mbed_official 235:685d5f11838f 338 * (For the complete STM32 Devices IRQ Channels list, please refer to stm32f4xx.h file)
mbed_official 235:685d5f11838f 339 * @retval None
mbed_official 235:685d5f11838f 340 */
mbed_official 235:685d5f11838f 341 void HAL_NVIC_ClearPendingIRQ(IRQn_Type IRQn)
mbed_official 235:685d5f11838f 342 {
mbed_official 235:685d5f11838f 343 /* Clear pending interrupt */
mbed_official 235:685d5f11838f 344 NVIC_ClearPendingIRQ(IRQn);
mbed_official 235:685d5f11838f 345 }
mbed_official 235:685d5f11838f 346
mbed_official 235:685d5f11838f 347 /**
mbed_official 235:685d5f11838f 348 * @brief Gets active interrupt ( reads the active register in NVIC and returns the active bit).
mbed_official 235:685d5f11838f 349 * @param IRQn External interrupt number
mbed_official 235:685d5f11838f 350 * This parameter can be an enumerator of IRQn_Type enumeration
mbed_official 235:685d5f11838f 351 * (For the complete STM32 Devices IRQ Channels list, please refer to stm32f4xx.h file)
mbed_official 235:685d5f11838f 352 * @retval status: - 0 Interrupt status is not pending.
mbed_official 235:685d5f11838f 353 * - 1 Interrupt status is pending.
mbed_official 235:685d5f11838f 354 */
mbed_official 235:685d5f11838f 355 uint32_t HAL_NVIC_GetActive(IRQn_Type IRQn)
mbed_official 235:685d5f11838f 356 {
mbed_official 235:685d5f11838f 357 /* Return 1 if active else 0 */
mbed_official 235:685d5f11838f 358 return NVIC_GetActive(IRQn);
mbed_official 235:685d5f11838f 359 }
mbed_official 235:685d5f11838f 360
mbed_official 235:685d5f11838f 361 /**
mbed_official 235:685d5f11838f 362 * @brief Configures the SysTick clock source.
mbed_official 235:685d5f11838f 363 * @param CLKSource: specifies the SysTick clock source.
mbed_official 235:685d5f11838f 364 * This parameter can be one of the following values:
mbed_official 235:685d5f11838f 365 * @arg SYSTICK_CLKSOURCE_HCLK_DIV8: AHB clock divided by 8 selected as SysTick clock source.
mbed_official 235:685d5f11838f 366 * @arg SYSTICK_CLKSOURCE_HCLK: AHB clock selected as SysTick clock source.
mbed_official 235:685d5f11838f 367 * @retval None
mbed_official 235:685d5f11838f 368 */
mbed_official 235:685d5f11838f 369 void HAL_SYSTICK_CLKSourceConfig(uint32_t CLKSource)
mbed_official 235:685d5f11838f 370 {
mbed_official 235:685d5f11838f 371 /* Check the parameters */
mbed_official 235:685d5f11838f 372 assert_param(IS_SYSTICK_CLK_SOURCE(CLKSource));
mbed_official 235:685d5f11838f 373 if (CLKSource == SYSTICK_CLKSOURCE_HCLK)
mbed_official 235:685d5f11838f 374 {
mbed_official 235:685d5f11838f 375 SysTick->CTRL |= SYSTICK_CLKSOURCE_HCLK;
mbed_official 235:685d5f11838f 376 }
mbed_official 235:685d5f11838f 377 else
mbed_official 235:685d5f11838f 378 {
mbed_official 235:685d5f11838f 379 SysTick->CTRL &= ~SYSTICK_CLKSOURCE_HCLK;
mbed_official 235:685d5f11838f 380 }
mbed_official 235:685d5f11838f 381 }
mbed_official 235:685d5f11838f 382
mbed_official 235:685d5f11838f 383 /**
mbed_official 235:685d5f11838f 384 * @brief This function handles SYSTICK interrupt request.
mbed_official 235:685d5f11838f 385 * @param None
mbed_official 235:685d5f11838f 386 * @retval None
mbed_official 235:685d5f11838f 387 */
mbed_official 235:685d5f11838f 388 void HAL_SYSTICK_IRQHandler(void)
mbed_official 235:685d5f11838f 389 {
mbed_official 235:685d5f11838f 390 HAL_SYSTICK_Callback();
mbed_official 235:685d5f11838f 391 }
mbed_official 235:685d5f11838f 392
mbed_official 235:685d5f11838f 393 /**
mbed_official 235:685d5f11838f 394 * @brief SYSTICK callback.
mbed_official 235:685d5f11838f 395 * @param None
mbed_official 235:685d5f11838f 396 * @retval None
mbed_official 235:685d5f11838f 397 */
mbed_official 235:685d5f11838f 398 __weak void HAL_SYSTICK_Callback(void)
mbed_official 235:685d5f11838f 399 {
mbed_official 235:685d5f11838f 400 /* NOTE : This function Should not be modified, when the callback is needed,
mbed_official 235:685d5f11838f 401 the HAL_SYSTICK_Callback could be implemented in the user file
mbed_official 235:685d5f11838f 402 */
mbed_official 235:685d5f11838f 403 }
mbed_official 235:685d5f11838f 404
mbed_official 235:685d5f11838f 405 /**
mbed_official 235:685d5f11838f 406 * @}
mbed_official 235:685d5f11838f 407 */
mbed_official 235:685d5f11838f 408
mbed_official 235:685d5f11838f 409 /**
mbed_official 235:685d5f11838f 410 * @}
mbed_official 235:685d5f11838f 411 */
mbed_official 235:685d5f11838f 412
mbed_official 235:685d5f11838f 413 #endif /* HAL_CORTEX_MODULE_ENABLED */
mbed_official 235:685d5f11838f 414 /**
mbed_official 235:685d5f11838f 415 * @}
mbed_official 235:685d5f11838f 416 */
mbed_official 235:685d5f11838f 417
mbed_official 235:685d5f11838f 418 /**
mbed_official 235:685d5f11838f 419 * @}
mbed_official 235:685d5f11838f 420 */
mbed_official 235:685d5f11838f 421
mbed_official 235:685d5f11838f 422 /************************ (C) COPYRIGHT STMicroelectronics *****END OF FILE****/