shao ziyang / mbed-src-kl05

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targets/cmsis/TARGET_STM/TARGET_NUCLEO_F334R8/stm32f3xx_hal_cortex.c@323:9e901b0a5aa1, 2014-09-13 (annotated)

Committer:
shaoziyang
Date:
Sat Sep 13 14:25:46 2014 +0000
Revision:
323:9e901b0a5aa1
Parent:
237:f3da66175598 
test with CLOCK_SETUP = 0

Who changed what in which revision?

UserRevisionLine numberNew contents of line
mbed_official 237:f3da66175598 1 /**
mbed_official 237:f3da66175598 2 ******************************************************************************
mbed_official 237:f3da66175598 3 * @file stm32f3xx_hal_cortex.c
mbed_official 237:f3da66175598 4 * @author MCD Application Team
mbed_official 237:f3da66175598 5 * @version V1.0.1
mbed_official 237:f3da66175598 6 * @date 18-June-2014
mbed_official 237:f3da66175598 7 * @brief CORTEX 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 CORTEX:
mbed_official 237:f3da66175598 11 * + Initialization/de-initialization functions
mbed_official 237:f3da66175598 12 * + Peripheral Control functions
mbed_official 237:f3da66175598 13 *
mbed_official 237:f3da66175598 14 * @verbatim
mbed_official 237:f3da66175598 15 ==============================================================================
mbed_official 237:f3da66175598 16 ##### How to use this driver #####
mbed_official 237:f3da66175598 17 ==============================================================================
mbed_official 237:f3da66175598 18
mbed_official 237:f3da66175598 19 [..]
mbed_official 237:f3da66175598 20 *** How to configure Interrupts using Cortex HAL driver ***
mbed_official 237:f3da66175598 21 ===========================================================
mbed_official 237:f3da66175598 22 [..]
mbed_official 237:f3da66175598 23 This section provide functions allowing to configure the NVIC interrupts (IRQ).
mbed_official 237:f3da66175598 24 The Cortex-M4 exceptions are managed by CMSIS functions.
mbed_official 237:f3da66175598 25
mbed_official 237:f3da66175598 26 (#) Configure the NVIC Priority Grouping using HAL_NVIC_SetPriorityGrouping()
mbed_official 237:f3da66175598 27 function according to the following table.
mbed_official 237:f3da66175598 28
mbed_official 237:f3da66175598 29 @brief CORTEX_NVIC_Priority_Table
mbed_official 237:f3da66175598 30 The table below gives the allowed values of the pre-emption priority and subpriority according
mbed_official 237:f3da66175598 31 to the Priority Grouping configuration performed by HAL_NVIC_SetPriorityGrouping() function
mbed_official 237:f3da66175598 32 ==========================================================================================================================
mbed_official 237:f3da66175598 33 NVIC_PriorityGroup | NVIC_IRQChannelPreemptionPriority | NVIC_IRQChannelSubPriority | Description
mbed_official 237:f3da66175598 34 ==========================================================================================================================
mbed_official 237:f3da66175598 35 NVIC_PRIORITYGROUP_0 | 0 | 0-15 | 0 bits for pre-emption priority
mbed_official 237:f3da66175598 36 | | | 4 bits for subpriority
mbed_official 237:f3da66175598 37 --------------------------------------------------------------------------------------------------------------------------
mbed_official 237:f3da66175598 38 NVIC_PRIORITYGROUP_1 | 0-1 | 0-7 | 1 bits for pre-emption priority
mbed_official 237:f3da66175598 39 | | | 3 bits for subpriority
mbed_official 237:f3da66175598 40 --------------------------------------------------------------------------------------------------------------------------
mbed_official 237:f3da66175598 41 NVIC_PRIORITYGROUP_2 | 0-3 | 0-3 | 2 bits for pre-emption priority
mbed_official 237:f3da66175598 42 | | | 2 bits for subpriority
mbed_official 237:f3da66175598 43 --------------------------------------------------------------------------------------------------------------------------
mbed_official 237:f3da66175598 44 NVIC_PRIORITYGROUP_3 | 0-7 | 0-1 | 3 bits for pre-emption priority
mbed_official 237:f3da66175598 45 | | | 1 bits for subpriority
mbed_official 237:f3da66175598 46 --------------------------------------------------------------------------------------------------------------------------
mbed_official 237:f3da66175598 47 NVIC_PRIORITYGROUP_4 | 0-15 | 0 | 4 bits for pre-emption priority
mbed_official 237:f3da66175598 48 | | | 0 bits for subpriority
mbed_official 237:f3da66175598 49 ==========================================================================================================================
mbed_official 237:f3da66175598 50 (#) Configure the priority of the selected IRQ Channels using HAL_NVIC_SetPriority()
mbed_official 237:f3da66175598 51
mbed_official 237:f3da66175598 52 (#) Enable the selected IRQ Channels using HAL_NVIC_EnableIRQ()
mbed_official 237:f3da66175598 53
mbed_official 237:f3da66175598 54
mbed_official 237:f3da66175598 55 -@- When the NVIC_PRIORITYGROUP_0 is selected, IRQ pre-emption is no more possible.
mbed_official 237:f3da66175598 56 The pending IRQ priority will be managed only by the sub priority.
mbed_official 237:f3da66175598 57
mbed_official 237:f3da66175598 58 -@- IRQ priority order (sorted by highest to lowest priority):
mbed_official 237:f3da66175598 59 (+@) Lowest pre-emption priority
mbed_official 237:f3da66175598 60 (+@) Lowest sub priority
mbed_official 237:f3da66175598 61 (+@) Lowest hardware priority (IRQ number)
mbed_official 237:f3da66175598 62
mbed_official 237:f3da66175598 63 [..]
mbed_official 237:f3da66175598 64 *** How to configure Systick using Cortex HAL driver ***
mbed_official 237:f3da66175598 65 ========================================================
mbed_official 237:f3da66175598 66 [..]
mbed_official 237:f3da66175598 67 Setup SysTick Timer for time base.
mbed_official 237:f3da66175598 68
mbed_official 237:f3da66175598 69 (+) The HAL_SYSTICK_Config()function calls the SysTick_Config() function which
mbed_official 237:f3da66175598 70 is a CMSIS function that:
mbed_official 237:f3da66175598 71 (++) Configures the SysTick Reload register with value passed as function parameter.
mbed_official 237:f3da66175598 72 (++) Configures the SysTick IRQ priority to the lowest value (0x0F).
mbed_official 237:f3da66175598 73 (++) Resets the SysTick Counter register.
mbed_official 237:f3da66175598 74 (++) Configures the SysTick Counter clock source to be Core Clock Source (HCLK).
mbed_official 237:f3da66175598 75 (++) Enables the SysTick Interrupt.
mbed_official 237:f3da66175598 76 (++) Starts the SysTick Counter.
mbed_official 237:f3da66175598 77
mbed_official 237:f3da66175598 78 (+) You can change the SysTick Clock source to be HCLK_Div8 by calling the macro
mbed_official 237:f3da66175598 79 __HAL_CORTEX_SYSTICKCLK_CONFIG(SYSTICK_CLKSOURCE_HCLK_DIV8) just after the
mbed_official 237:f3da66175598 80 HAL_SYSTICK_Config() function call. The __HAL_CORTEX_SYSTICKCLK_CONFIG() macro is defined
mbed_official 237:f3da66175598 81 inside the stm32f3xx_hal_cortex.h file.
mbed_official 237:f3da66175598 82
mbed_official 237:f3da66175598 83 (+) You can change the SysTick IRQ priority by calling the
mbed_official 237:f3da66175598 84 HAL_NVIC_SetPriority(SysTick_IRQn,...) function just after the HAL_SYSTICK_Config() function
mbed_official 237:f3da66175598 85 call. The HAL_NVIC_SetPriority() call the NVIC_SetPriority() function which is a CMSIS function.
mbed_official 237:f3da66175598 86
mbed_official 237:f3da66175598 87 (+) To adjust the SysTick time base, use the following formula:
mbed_official 237:f3da66175598 88
mbed_official 237:f3da66175598 89 Reload Value = SysTick Counter Clock (Hz) x Desired Time base (s)
mbed_official 237:f3da66175598 90 (++) Reload Value is the parameter to be passed for HAL_SYSTICK_Config() function
mbed_official 237:f3da66175598 91 (++) Reload Value should not exceed 0xFFFFFF
mbed_official 237:f3da66175598 92
mbed_official 237:f3da66175598 93 @endverbatim
mbed_official 237:f3da66175598 94 ******************************************************************************
mbed_official 237:f3da66175598 95 * @attention
mbed_official 237:f3da66175598 96 *
mbed_official 237:f3da66175598 97 * <h2><center>&copy; COPYRIGHT(c) 2014 STMicroelectronics</center></h2>
mbed_official 237:f3da66175598 98 *
mbed_official 237:f3da66175598 99 * Redistribution and use in source and binary forms, with or without modification,
mbed_official 237:f3da66175598 100 * are permitted provided that the following conditions are met:
mbed_official 237:f3da66175598 101 * 1. Redistributions of source code must retain the above copyright notice,
mbed_official 237:f3da66175598 102 * this list of conditions and the following disclaimer.
mbed_official 237:f3da66175598 103 * 2. Redistributions in binary form must reproduce the above copyright notice,
mbed_official 237:f3da66175598 104 * this list of conditions and the following disclaimer in the documentation
mbed_official 237:f3da66175598 105 * and/or other materials provided with the distribution.
mbed_official 237:f3da66175598 106 * 3. Neither the name of STMicroelectronics nor the names of its contributors
mbed_official 237:f3da66175598 107 * may be used to endorse or promote products derived from this software
mbed_official 237:f3da66175598 108 * without specific prior written permission.
mbed_official 237:f3da66175598 109 *
mbed_official 237:f3da66175598 110 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
mbed_official 237:f3da66175598 111 * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
mbed_official 237:f3da66175598 112 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
mbed_official 237:f3da66175598 113 * DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE
mbed_official 237:f3da66175598 114 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
mbed_official 237:f3da66175598 115 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
mbed_official 237:f3da66175598 116 * SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
mbed_official 237:f3da66175598 117 * CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
mbed_official 237:f3da66175598 118 * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
mbed_official 237:f3da66175598 119 * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
mbed_official 237:f3da66175598 120 *
mbed_official 237:f3da66175598 121 ******************************************************************************
mbed_official 237:f3da66175598 122 */
mbed_official 237:f3da66175598 123
mbed_official 237:f3da66175598 124 /* Includes ------------------------------------------------------------------*/
mbed_official 237:f3da66175598 125 #include "stm32f3xx_hal.h"
mbed_official 237:f3da66175598 126
mbed_official 237:f3da66175598 127 /** @addtogroup STM32F3xx_HAL_Driver
mbed_official 237:f3da66175598 128 * @{
mbed_official 237:f3da66175598 129 */
mbed_official 237:f3da66175598 130
mbed_official 237:f3da66175598 131 /** @defgroup CORTEX
mbed_official 237:f3da66175598 132 * @brief CORTEX HAL module driver
mbed_official 237:f3da66175598 133 * @{
mbed_official 237:f3da66175598 134 */
mbed_official 237:f3da66175598 135
mbed_official 237:f3da66175598 136 #ifdef HAL_CORTEX_MODULE_ENABLED
mbed_official 237:f3da66175598 137
mbed_official 237:f3da66175598 138 /* Private typedef -----------------------------------------------------------*/
mbed_official 237:f3da66175598 139 /* Private define ------------------------------------------------------------*/
mbed_official 237:f3da66175598 140 /* Private macro -------------------------------------------------------------*/
mbed_official 237:f3da66175598 141 /* Private variables ---------------------------------------------------------*/
mbed_official 237:f3da66175598 142 /* Private function prototypes -----------------------------------------------*/
mbed_official 237:f3da66175598 143 /* Private functions ---------------------------------------------------------*/
mbed_official 237:f3da66175598 144
mbed_official 237:f3da66175598 145 /** @defgroup CORTEX_Private_Functions
mbed_official 237:f3da66175598 146 * @{
mbed_official 237:f3da66175598 147 */
mbed_official 237:f3da66175598 148
mbed_official 237:f3da66175598 149
mbed_official 237:f3da66175598 150 /** @defgroup HAL_CORTEX_Group1 Initialization/de-initialization functions
mbed_official 237:f3da66175598 151 * @brief Initialization and Configuration functions
mbed_official 237:f3da66175598 152 *
mbed_official 237:f3da66175598 153 @verbatim
mbed_official 237:f3da66175598 154 ==============================================================================
mbed_official 237:f3da66175598 155 ##### Initialization and de-initialization functions #####
mbed_official 237:f3da66175598 156 ==============================================================================
mbed_official 237:f3da66175598 157 [..]
mbed_official 237:f3da66175598 158 This section provide the Cortex HAL driver functions allowing to configure Interrupts
mbed_official 237:f3da66175598 159 Systick functionalities
mbed_official 237:f3da66175598 160
mbed_official 237:f3da66175598 161 @endverbatim
mbed_official 237:f3da66175598 162 * @{
mbed_official 237:f3da66175598 163 */
mbed_official 237:f3da66175598 164
mbed_official 237:f3da66175598 165
mbed_official 237:f3da66175598 166 /**
mbed_official 237:f3da66175598 167 * @brief Sets the priority grouping field (pre-emption priority and subpriority)
mbed_official 237:f3da66175598 168 * using the required unlock sequence.
mbed_official 237:f3da66175598 169 * @param PriorityGroup: The priority grouping bits length.
mbed_official 237:f3da66175598 170 * This parameter can be one of the following values:
mbed_official 237:f3da66175598 171 * @arg NVIC_PRIORITYGROUP_0: 0 bits for pre-emption priority
mbed_official 237:f3da66175598 172 * 4 bits for subpriority
mbed_official 237:f3da66175598 173 * @arg NVIC_PRIORITYGROUP_1: 1 bits for pre-emption priority
mbed_official 237:f3da66175598 174 * 3 bits for subpriority
mbed_official 237:f3da66175598 175 * @arg NVIC_PRIORITYGROUP_2: 2 bits for pre-emption priority
mbed_official 237:f3da66175598 176 * 2 bits for subpriority
mbed_official 237:f3da66175598 177 * @arg NVIC_PRIORITYGROUP_3: 3 bits for pre-emption priority
mbed_official 237:f3da66175598 178 * 1 bits for subpriority
mbed_official 237:f3da66175598 179 * @arg NVIC_PRIORITYGROUP_4: 4 bits for pre-emption priority
mbed_official 237:f3da66175598 180 * 0 bits for subpriority
mbed_official 237:f3da66175598 181 * @note When the NVIC_PriorityGroup_0 is selected, IRQ pre-emption is no more possible.
mbed_official 237:f3da66175598 182 * The pending IRQ priority will be managed only by the subpriority.
mbed_official 237:f3da66175598 183 * @retval None
mbed_official 237:f3da66175598 184 */
mbed_official 237:f3da66175598 185 void HAL_NVIC_SetPriorityGrouping(uint32_t PriorityGroup)
mbed_official 237:f3da66175598 186 {
mbed_official 237:f3da66175598 187 /* Check the parameters */
mbed_official 237:f3da66175598 188 assert_param(IS_NVIC_PRIORITY_GROUP(PriorityGroup));
mbed_official 237:f3da66175598 189
mbed_official 237:f3da66175598 190 /* Set the PRIGROUP[10:8] bits according to the PriorityGroup parameter value */
mbed_official 237:f3da66175598 191 NVIC_SetPriorityGrouping(PriorityGroup);
mbed_official 237:f3da66175598 192 }
mbed_official 237:f3da66175598 193
mbed_official 237:f3da66175598 194 /**
mbed_official 237:f3da66175598 195 * @brief Sets the priority of an interrupt.
mbed_official 237:f3da66175598 196 * @param IRQn: External interrupt number
mbed_official 237:f3da66175598 197 * This parameter can be an enumerator of IRQn_Type enumeration
mbed_official 237:f3da66175598 198 * (For the complete STM32 Devices IRQ Channels list, please refer to the appropriate CMSIS device file (stm32f3xxxx.h))
mbed_official 237:f3da66175598 199 * @param PreemptPriority: The pre-emption priority for the IRQn channel.
mbed_official 237:f3da66175598 200 * This parameter can be a value between 0 and 15 as described in the table CORTEX_NVIC_Priority_Table
mbed_official 237:f3da66175598 201 * A lower priority value indicates a higher priority
mbed_official 237:f3da66175598 202 * @param SubPriority: the subpriority level for the IRQ channel.
mbed_official 237:f3da66175598 203 * This parameter can be a value between 0 and 15 as described in the table CORTEX_NVIC_Priority_Table
mbed_official 237:f3da66175598 204 * A lower priority value indicates a higher priority.
mbed_official 237:f3da66175598 205 * @retval None
mbed_official 237:f3da66175598 206 */
mbed_official 237:f3da66175598 207 void HAL_NVIC_SetPriority(IRQn_Type IRQn, uint32_t PreemptPriority, uint32_t SubPriority)
mbed_official 237:f3da66175598 208 {
mbed_official 237:f3da66175598 209 uint32_t prioritygroup = 0x00;
mbed_official 237:f3da66175598 210
mbed_official 237:f3da66175598 211 /* Check the parameters */
mbed_official 237:f3da66175598 212 assert_param(IS_NVIC_SUB_PRIORITY(SubPriority));
mbed_official 237:f3da66175598 213 assert_param(IS_NVIC_PREEMPTION_PRIORITY(PreemptPriority));
mbed_official 237:f3da66175598 214
mbed_official 237:f3da66175598 215 prioritygroup = NVIC_GetPriorityGrouping();
mbed_official 237:f3da66175598 216
mbed_official 237:f3da66175598 217 NVIC_SetPriority(IRQn, NVIC_EncodePriority(prioritygroup, PreemptPriority, SubPriority));
mbed_official 237:f3da66175598 218 }
mbed_official 237:f3da66175598 219
mbed_official 237:f3da66175598 220 /**
mbed_official 237:f3da66175598 221 * @brief Enables a device specific interrupt in the NVIC interrupt controller.
mbed_official 237:f3da66175598 222 * @note To configure interrupts priority correctly, the NVIC_PriorityGroupConfig()
mbed_official 237:f3da66175598 223 * function should be called before.
mbed_official 237:f3da66175598 224 * @param IRQn External interrupt number
mbed_official 237:f3da66175598 225 * This parameter can be an enumerator of IRQn_Type enumeration
mbed_official 237:f3da66175598 226 * (For the complete STM32 Devices IRQ Channels list, please refer to the appropriate CMSIS device file (stm32f3xxxx.h))
mbed_official 237:f3da66175598 227 * @retval None
mbed_official 237:f3da66175598 228 */
mbed_official 237:f3da66175598 229 void HAL_NVIC_EnableIRQ(IRQn_Type IRQn)
mbed_official 237:f3da66175598 230 {
mbed_official 237:f3da66175598 231 /* Enable interrupt */
mbed_official 237:f3da66175598 232 NVIC_EnableIRQ(IRQn);
mbed_official 237:f3da66175598 233 }
mbed_official 237:f3da66175598 234
mbed_official 237:f3da66175598 235 /**
mbed_official 237:f3da66175598 236 * @brief Disables a device specific interrupt in the NVIC interrupt controller.
mbed_official 237:f3da66175598 237 * @param IRQn External interrupt number
mbed_official 237:f3da66175598 238 * This parameter can be an enumerator of IRQn_Type enumeration
mbed_official 237:f3da66175598 239 * (For the complete STM32 Devices IRQ Channels list, please refer to the appropriate CMSIS device file (stm32f3xxxx.h))
mbed_official 237:f3da66175598 240 * @retval None
mbed_official 237:f3da66175598 241 */
mbed_official 237:f3da66175598 242 void HAL_NVIC_DisableIRQ(IRQn_Type IRQn)
mbed_official 237:f3da66175598 243 {
mbed_official 237:f3da66175598 244 /* Disable interrupt */
mbed_official 237:f3da66175598 245 NVIC_DisableIRQ(IRQn);
mbed_official 237:f3da66175598 246 }
mbed_official 237:f3da66175598 247
mbed_official 237:f3da66175598 248 /**
mbed_official 237:f3da66175598 249 * @brief Initiates a system reset request to reset the MCU.
mbed_official 237:f3da66175598 250 * @param None
mbed_official 237:f3da66175598 251 * @retval None
mbed_official 237:f3da66175598 252 */
mbed_official 237:f3da66175598 253 void HAL_NVIC_SystemReset(void)
mbed_official 237:f3da66175598 254 {
mbed_official 237:f3da66175598 255 /* System Reset */
mbed_official 237:f3da66175598 256 NVIC_SystemReset();
mbed_official 237:f3da66175598 257 }
mbed_official 237:f3da66175598 258
mbed_official 237:f3da66175598 259 /**
mbed_official 237:f3da66175598 260 * @brief Initializes the System Timer and its interrupt, and starts the System Tick Timer.
mbed_official 237:f3da66175598 261 * Counter is in free running mode to generate periodic interrupts.
mbed_official 237:f3da66175598 262 * @param TicksNumb: Specifies the ticks Number of ticks between two interrupts.
mbed_official 237:f3da66175598 263 * @retval status: - 0 Function succeeded.
mbed_official 237:f3da66175598 264 * - 1 Function failed.
mbed_official 237:f3da66175598 265 */
mbed_official 237:f3da66175598 266 uint32_t HAL_SYSTICK_Config(uint32_t TicksNumb)
mbed_official 237:f3da66175598 267 {
mbed_official 237:f3da66175598 268 return SysTick_Config(TicksNumb);
mbed_official 237:f3da66175598 269 }
mbed_official 237:f3da66175598 270 /**
mbed_official 237:f3da66175598 271 * @}
mbed_official 237:f3da66175598 272 */
mbed_official 237:f3da66175598 273
mbed_official 237:f3da66175598 274 /** @defgroup HAL_CORTEX_Group2 Peripheral Control functions
mbed_official 237:f3da66175598 275 * @brief Cortex control functions
mbed_official 237:f3da66175598 276 *
mbed_official 237:f3da66175598 277 @verbatim
mbed_official 237:f3da66175598 278 ==============================================================================
mbed_official 237:f3da66175598 279 ##### Peripheral Control functions #####
mbed_official 237:f3da66175598 280 ==============================================================================
mbed_official 237:f3da66175598 281 [..]
mbed_official 237:f3da66175598 282 This subsection provides a set of functions allowing to control the CORTEX
mbed_official 237:f3da66175598 283 (NVIC, SYSTICK) functionalities.
mbed_official 237:f3da66175598 284
mbed_official 237:f3da66175598 285
mbed_official 237:f3da66175598 286 @endverbatim
mbed_official 237:f3da66175598 287 * @{
mbed_official 237:f3da66175598 288 */
mbed_official 237:f3da66175598 289
mbed_official 237:f3da66175598 290 /**
mbed_official 237:f3da66175598 291 * @brief Gets the priority grouping field from the NVIC Interrupt Controller.
mbed_official 237:f3da66175598 292 * @param None
mbed_official 237:f3da66175598 293 * @retval Priority grouping field (SCB->AIRCR [10:8] PRIGROUP field)
mbed_official 237:f3da66175598 294 */
mbed_official 237:f3da66175598 295 uint32_t HAL_NVIC_GetPriorityGrouping(void)
mbed_official 237:f3da66175598 296 {
mbed_official 237:f3da66175598 297 /* Get the PRIGROUP[10:8] field value */
mbed_official 237:f3da66175598 298 return NVIC_GetPriorityGrouping();
mbed_official 237:f3da66175598 299 }
mbed_official 237:f3da66175598 300
mbed_official 237:f3da66175598 301 /**
mbed_official 237:f3da66175598 302 * @brief Gets the priority of an interrupt.
mbed_official 237:f3da66175598 303 * @param IRQn: External interrupt number
mbed_official 237:f3da66175598 304 * This parameter can be an enumerator of IRQn_Type enumeration
mbed_official 237:f3da66175598 305 * (For the complete STM32 Devices IRQ Channels list, please refer to the appropriate CMSIS device file (stm32f3xxxx.h))
mbed_official 237:f3da66175598 306 * @param PriorityGroup: the priority grouping bits length.
mbed_official 237:f3da66175598 307 * This parameter can be one of the following values:
mbed_official 237:f3da66175598 308 * @arg NVIC_PRIORITYGROUP_0: 0 bits for pre-emption priority
mbed_official 237:f3da66175598 309 * 4 bits for subpriority
mbed_official 237:f3da66175598 310 * @arg NVIC_PRIORITYGROUP_1: 1 bits for pre-emption priority
mbed_official 237:f3da66175598 311 * 3 bits for subpriority
mbed_official 237:f3da66175598 312 * @arg NVIC_PRIORITYGROUP_2: 2 bits for pre-emption priority
mbed_official 237:f3da66175598 313 * 2 bits for subpriority
mbed_official 237:f3da66175598 314 * @arg NVIC_PRIORITYGROUP_3: 3 bits for pre-emption priority
mbed_official 237:f3da66175598 315 * 1 bits for subpriority
mbed_official 237:f3da66175598 316 * @arg NVIC_PRIORITYGROUP_4: 4 bits for pre-emption priority
mbed_official 237:f3da66175598 317 * 0 bits for subpriority
mbed_official 237:f3da66175598 318 * @param pPreemptPriority: Pointer on the Preemptive priority value (starting from 0).
mbed_official 237:f3da66175598 319 * @param pSubPriority: Pointer on the Subpriority value (starting from 0).
mbed_official 237:f3da66175598 320 * @retval None
mbed_official 237:f3da66175598 321 */
mbed_official 237:f3da66175598 322 void HAL_NVIC_GetPriority(IRQn_Type IRQn, uint32_t PriorityGroup, uint32_t* pPreemptPriority, uint32_t* pSubPriority)
mbed_official 237:f3da66175598 323 {
mbed_official 237:f3da66175598 324 /* Check the parameters */
mbed_official 237:f3da66175598 325 assert_param(IS_NVIC_PRIORITY_GROUP(PriorityGroup));
mbed_official 237:f3da66175598 326 /* Get priority for Cortex-M system or device specific interrupts */
mbed_official 237:f3da66175598 327 NVIC_DecodePriority(NVIC_GetPriority(IRQn), PriorityGroup, pPreemptPriority, pSubPriority);
mbed_official 237:f3da66175598 328 }
mbed_official 237:f3da66175598 329
mbed_official 237:f3da66175598 330 /**
mbed_official 237:f3da66175598 331 * @brief Sets Pending bit of an external interrupt.
mbed_official 237:f3da66175598 332 * @param IRQn External interrupt number
mbed_official 237:f3da66175598 333 * This parameter can be an enumerator of IRQn_Type enumeration
mbed_official 237:f3da66175598 334 * (For the complete STM32 Devices IRQ Channels list, please refer to the appropriate CMSIS device file (stm32f3xxxx.h))
mbed_official 237:f3da66175598 335 * @retval None
mbed_official 237:f3da66175598 336 */
mbed_official 237:f3da66175598 337 void HAL_NVIC_SetPendingIRQ(IRQn_Type IRQn)
mbed_official 237:f3da66175598 338 {
mbed_official 237:f3da66175598 339 /* Set interrupt pending */
mbed_official 237:f3da66175598 340 NVIC_SetPendingIRQ(IRQn);
mbed_official 237:f3da66175598 341 }
mbed_official 237:f3da66175598 342
mbed_official 237:f3da66175598 343 /**
mbed_official 237:f3da66175598 344 * @brief Gets Pending Interrupt (reads the pending register in the NVIC
mbed_official 237:f3da66175598 345 * and returns the pending bit for the specified interrupt).
mbed_official 237:f3da66175598 346 * @param IRQn External interrupt number
mbed_official 237:f3da66175598 347 * This parameter can be an enumerator of IRQn_Type enumeration
mbed_official 237:f3da66175598 348 * (For the complete STM32 Devices IRQ Channels list, please refer to the appropriate CMSIS device file (stm32f3xxxx.h))
mbed_official 237:f3da66175598 349 * @retval status: - 0 Interrupt status is not pending.
mbed_official 237:f3da66175598 350 * - 1 Interrupt status is pending.
mbed_official 237:f3da66175598 351 */
mbed_official 237:f3da66175598 352 uint32_t HAL_NVIC_GetPendingIRQ(IRQn_Type IRQn)
mbed_official 237:f3da66175598 353 {
mbed_official 237:f3da66175598 354 /* Return 1 if pending else 0 */
mbed_official 237:f3da66175598 355 return NVIC_GetPendingIRQ(IRQn);
mbed_official 237:f3da66175598 356 }
mbed_official 237:f3da66175598 357
mbed_official 237:f3da66175598 358 /**
mbed_official 237:f3da66175598 359 * @brief Clears the pending bit of an external interrupt.
mbed_official 237:f3da66175598 360 * @param IRQn External interrupt number
mbed_official 237:f3da66175598 361 * This parameter can be an enumerator of IRQn_Type enumeration
mbed_official 237:f3da66175598 362 * (For the complete STM32 Devices IRQ Channels list, please refer to the appropriate CMSIS device file (stm32f3xxxx.h))
mbed_official 237:f3da66175598 363 * @retval None
mbed_official 237:f3da66175598 364 */
mbed_official 237:f3da66175598 365 void HAL_NVIC_ClearPendingIRQ(IRQn_Type IRQn)
mbed_official 237:f3da66175598 366 {
mbed_official 237:f3da66175598 367 /* Clear pending interrupt */
mbed_official 237:f3da66175598 368 NVIC_ClearPendingIRQ(IRQn);
mbed_official 237:f3da66175598 369 }
mbed_official 237:f3da66175598 370
mbed_official 237:f3da66175598 371 /**
mbed_official 237:f3da66175598 372 * @brief Gets active interrupt ( reads the active register in NVIC and returns the active bit).
mbed_official 237:f3da66175598 373 * @param IRQn External interrupt number
mbed_official 237:f3da66175598 374 * This parameter can be an enumerator of IRQn_Type enumeration
mbed_official 237:f3da66175598 375 * (For the complete STM32 Devices IRQ Channels list, please refer to the appropriate CMSIS device file (stm32f3xxxx.h))
mbed_official 237:f3da66175598 376 * @retval status: - 0 Interrupt status is not pending.
mbed_official 237:f3da66175598 377 * - 1 Interrupt status is pending.
mbed_official 237:f3da66175598 378 */
mbed_official 237:f3da66175598 379 uint32_t HAL_NVIC_GetActive(IRQn_Type IRQn)
mbed_official 237:f3da66175598 380 {
mbed_official 237:f3da66175598 381 /* Return 1 if active else 0 */
mbed_official 237:f3da66175598 382 return NVIC_GetActive(IRQn);
mbed_official 237:f3da66175598 383 }
mbed_official 237:f3da66175598 384
mbed_official 237:f3da66175598 385 /**
mbed_official 237:f3da66175598 386 * @brief Configures the SysTick clock source.
mbed_official 237:f3da66175598 387 * @param CLKSource: specifies the SysTick clock source.
mbed_official 237:f3da66175598 388 * This parameter can be one of the following values:
mbed_official 237:f3da66175598 389 * @arg SYSTICK_CLKSOURCE_HCLK_DIV8: AHB clock divided by 8 selected as SysTick clock source.
mbed_official 237:f3da66175598 390 * @arg SYSTICK_CLKSOURCE_HCLK: AHB clock selected as SysTick clock source.
mbed_official 237:f3da66175598 391 * @retval None
mbed_official 237:f3da66175598 392 */
mbed_official 237:f3da66175598 393 void HAL_SYSTICK_CLKSourceConfig(uint32_t CLKSource)
mbed_official 237:f3da66175598 394 {
mbed_official 237:f3da66175598 395 /* Check the parameters */
mbed_official 237:f3da66175598 396 assert_param(IS_SYSTICK_CLKSOURCE(CLKSource));
mbed_official 237:f3da66175598 397 if (CLKSource == SYSTICK_CLKSOURCE_HCLK)
mbed_official 237:f3da66175598 398 {
mbed_official 237:f3da66175598 399 SysTick->CTRL |= SYSTICK_CLKSOURCE_HCLK;
mbed_official 237:f3da66175598 400 }
mbed_official 237:f3da66175598 401 else
mbed_official 237:f3da66175598 402 {
mbed_official 237:f3da66175598 403 SysTick->CTRL &= ~SYSTICK_CLKSOURCE_HCLK;
mbed_official 237:f3da66175598 404 }
mbed_official 237:f3da66175598 405 }
mbed_official 237:f3da66175598 406
mbed_official 237:f3da66175598 407 /**
mbed_official 237:f3da66175598 408 * @brief This function handles SYSTICK interrupt request.
mbed_official 237:f3da66175598 409 * @param None
mbed_official 237:f3da66175598 410 * @retval None
mbed_official 237:f3da66175598 411 */
mbed_official 237:f3da66175598 412 void HAL_SYSTICK_IRQHandler(void)
mbed_official 237:f3da66175598 413 {
mbed_official 237:f3da66175598 414 HAL_SYSTICK_Callback();
mbed_official 237:f3da66175598 415 }
mbed_official 237:f3da66175598 416
mbed_official 237:f3da66175598 417 /**
mbed_official 237:f3da66175598 418 * @brief SYSTICK callback.
mbed_official 237:f3da66175598 419 * @param None
mbed_official 237:f3da66175598 420 * @retval None
mbed_official 237:f3da66175598 421 */
mbed_official 237:f3da66175598 422 __weak void HAL_SYSTICK_Callback(void)
mbed_official 237:f3da66175598 423 {
mbed_official 237:f3da66175598 424 /* NOTE : This function Should not be modified, when the callback is needed,
mbed_official 237:f3da66175598 425 the HAL_SYSTICK_Callback could be implemented in the user file
mbed_official 237:f3da66175598 426 */
mbed_official 237:f3da66175598 427 }
mbed_official 237:f3da66175598 428
mbed_official 237:f3da66175598 429 /**
mbed_official 237:f3da66175598 430 * @}
mbed_official 237:f3da66175598 431 */
mbed_official 237:f3da66175598 432
mbed_official 237:f3da66175598 433 /**
mbed_official 237:f3da66175598 434 * @}
mbed_official 237:f3da66175598 435 */
mbed_official 237:f3da66175598 436
mbed_official 237:f3da66175598 437 #endif /* HAL_CORTEX_MODULE_ENABLED */
mbed_official 237:f3da66175598 438 /**
mbed_official 237:f3da66175598 439 * @}
mbed_official 237:f3da66175598 440 */
mbed_official 237:f3da66175598 441
mbed_official 237:f3da66175598 442 /**
mbed_official 237:f3da66175598 443 * @}
mbed_official 237:f3da66175598 444 */
mbed_official 237:f3da66175598 445
mbed_official 237:f3da66175598 446 /************************ (C) COPYRIGHT STMicroelectronics *****END OF FILE****/