shao ziyang / mbed-src-kl05

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targets/cmsis/TARGET_STM/TARGET_NUCLEO_L053R8/stm32l0xx_hal_cortex.c@323:9e901b0a5aa1, 2014-09-13 (annotated)

Committer:
shaoziyang
Date:
Sat Sep 13 14:25:46 2014 +0000
Revision:
323:9e901b0a5aa1
Parent:
181:a4cbdfbbd2f4 
test with CLOCK_SETUP = 0

Who changed what in which revision?

UserRevisionLine numberNew contents of line
mbed_official 181:a4cbdfbbd2f4 1 /**
mbed_official 181:a4cbdfbbd2f4 2 ******************************************************************************
mbed_official 181:a4cbdfbbd2f4 3 * @file stm32l0xx_hal_cortex.c
mbed_official 181:a4cbdfbbd2f4 4 * @author MCD Application Team
mbed_official 181:a4cbdfbbd2f4 5 * @version V1.0.0
mbed_official 181:a4cbdfbbd2f4 6 * @date 22-April-2014
mbed_official 181:a4cbdfbbd2f4 7 * @brief CORTEX HAL module driver.
mbed_official 181:a4cbdfbbd2f4 8 * This file provides firmware functions to manage the following
mbed_official 181:a4cbdfbbd2f4 9 * functionalities of the CORTEX:
mbed_official 181:a4cbdfbbd2f4 10 * + Initialization and de-initialization functions
mbed_official 181:a4cbdfbbd2f4 11 * + Peripheral Control functions
mbed_official 181:a4cbdfbbd2f4 12 *
mbed_official 181:a4cbdfbbd2f4 13 @verbatim
mbed_official 181:a4cbdfbbd2f4 14 ==============================================================================
mbed_official 181:a4cbdfbbd2f4 15 ##### How to use this driver #####
mbed_official 181:a4cbdfbbd2f4 16 ==============================================================================
mbed_official 181:a4cbdfbbd2f4 17
mbed_official 181:a4cbdfbbd2f4 18 [..]
mbed_official 181:a4cbdfbbd2f4 19 *** How to configure Interrupts using CORTEX HAL driver ***
mbed_official 181:a4cbdfbbd2f4 20 ===========================================================
mbed_official 181:a4cbdfbbd2f4 21 [..]
mbed_official 181:a4cbdfbbd2f4 22 This section provide functions allowing to configure the NVIC interrupts (IRQ).
mbed_official 181:a4cbdfbbd2f4 23 The Cortex-M0+ exceptions are managed by CMSIS functions.
mbed_official 181:a4cbdfbbd2f4 24 (#) Enable and Configure the priority of the selected IRQ Channels.
mbed_official 181:a4cbdfbbd2f4 25 The priority can be 0..3.
mbed_official 181:a4cbdfbbd2f4 26
mbed_official 181:a4cbdfbbd2f4 27 -@- Lower priority values gives higher priority.
mbed_official 181:a4cbdfbbd2f4 28 -@- Priority Order:
mbed_official 181:a4cbdfbbd2f4 29 (#@) Lowest priority.
mbed_official 181:a4cbdfbbd2f4 30 (#@) Lowest hardware priority (IRQn position).
mbed_official 181:a4cbdfbbd2f4 31
mbed_official 181:a4cbdfbbd2f4 32 (#) Configure the priority of the selected IRQ Channels using HAL_NVIC_SetPriority()
mbed_official 181:a4cbdfbbd2f4 33
mbed_official 181:a4cbdfbbd2f4 34 (#) Enable the selected IRQ Channels using HAL_NVIC_EnableIRQ()
mbed_official 181:a4cbdfbbd2f4 35
mbed_official 181:a4cbdfbbd2f4 36 [..]
mbed_official 181:a4cbdfbbd2f4 37 *** How to configure Systick using CORTEX HAL driver ***
mbed_official 181:a4cbdfbbd2f4 38 ========================================================
mbed_official 181:a4cbdfbbd2f4 39 [..]
mbed_official 181:a4cbdfbbd2f4 40 Setup SysTick Timer for time base
mbed_official 181:a4cbdfbbd2f4 41
mbed_official 181:a4cbdfbbd2f4 42 (+) The HAL_SYSTICK_Config()function calls the SysTick_Config() function which
mbed_official 181:a4cbdfbbd2f4 43 is a CMSIS function that:
mbed_official 181:a4cbdfbbd2f4 44 (++) Configures the SysTick Reload register with value passed as function parameter.
mbed_official 181:a4cbdfbbd2f4 45 (++) Configures the SysTick IRQ priority to the lowest value (0x03).
mbed_official 181:a4cbdfbbd2f4 46 (++) Resets the SysTick Counter register.
mbed_official 181:a4cbdfbbd2f4 47 (++) Configures the SysTick Counter clock source to be Core Clock Source (HCLK).
mbed_official 181:a4cbdfbbd2f4 48 (++) Enables the SysTick Interrupt.
mbed_official 181:a4cbdfbbd2f4 49 (++) Starts the SysTick Counter.
mbed_official 181:a4cbdfbbd2f4 50
mbed_official 181:a4cbdfbbd2f4 51 (+) You can change the SysTick Clock source to be HCLK_Div8 by calling the macro
mbed_official 181:a4cbdfbbd2f4 52 __HAL_CORTEX_SYSTICKCLK_CONFIG(SYSTICK_CLKSOURCE_HCLK_DIV8) just after the
mbed_official 181:a4cbdfbbd2f4 53 HAL_SYSTICK_Config() function call. The __HAL_CORTEX_SYSTICKCLK_CONFIG() macro is defined
mbed_official 181:a4cbdfbbd2f4 54 inside the stm32l0xx_hal_cortex.h file.
mbed_official 181:a4cbdfbbd2f4 55
mbed_official 181:a4cbdfbbd2f4 56 (+) You can change the SysTick IRQ priority by calling the
mbed_official 181:a4cbdfbbd2f4 57 HAL_NVIC_SetPriority(SysTick_IRQn,...) function just after the HAL_SYSTICK_Config() function
mbed_official 181:a4cbdfbbd2f4 58 call. The HAL_NVIC_SetPriority() call the NVIC_SetPriority() function which is a CMSIS function.
mbed_official 181:a4cbdfbbd2f4 59
mbed_official 181:a4cbdfbbd2f4 60 (+) To adjust the SysTick time base, use the following formula:
mbed_official 181:a4cbdfbbd2f4 61
mbed_official 181:a4cbdfbbd2f4 62 Reload Value = SysTick Counter Clock (Hz) x Desired Time base (s)
mbed_official 181:a4cbdfbbd2f4 63 (++) Reload Value is the parameter to be passed for HAL_SYSTICK_Config() function
mbed_official 181:a4cbdfbbd2f4 64 (++) Reload Value should not exceed 0xFFFFFF
mbed_official 181:a4cbdfbbd2f4 65
mbed_official 181:a4cbdfbbd2f4 66 @endverbatim
mbed_official 181:a4cbdfbbd2f4 67 ******************************************************************************
mbed_official 181:a4cbdfbbd2f4 68 * @attention
mbed_official 181:a4cbdfbbd2f4 69 *
mbed_official 181:a4cbdfbbd2f4 70 * <h2><center>&copy; COPYRIGHT(c) 2014 STMicroelectronics</center></h2>
mbed_official 181:a4cbdfbbd2f4 71 *
mbed_official 181:a4cbdfbbd2f4 72 * Redistribution and use in source and binary forms, with or without modification,
mbed_official 181:a4cbdfbbd2f4 73 * are permitted provided that the following conditions are met:
mbed_official 181:a4cbdfbbd2f4 74 * 1. Redistributions of source code must retain the above copyright notice,
mbed_official 181:a4cbdfbbd2f4 75 * this list of conditions and the following disclaimer.
mbed_official 181:a4cbdfbbd2f4 76 * 2. Redistributions in binary form must reproduce the above copyright notice,
mbed_official 181:a4cbdfbbd2f4 77 * this list of conditions and the following disclaimer in the documentation
mbed_official 181:a4cbdfbbd2f4 78 * and/or other materials provided with the distribution.
mbed_official 181:a4cbdfbbd2f4 79 * 3. Neither the name of STMicroelectronics nor the names of its contributors
mbed_official 181:a4cbdfbbd2f4 80 * may be used to endorse or promote products derived from this software
mbed_official 181:a4cbdfbbd2f4 81 * without specific prior written permission.
mbed_official 181:a4cbdfbbd2f4 82 *
mbed_official 181:a4cbdfbbd2f4 83 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
mbed_official 181:a4cbdfbbd2f4 84 * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
mbed_official 181:a4cbdfbbd2f4 85 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
mbed_official 181:a4cbdfbbd2f4 86 * DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE
mbed_official 181:a4cbdfbbd2f4 87 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
mbed_official 181:a4cbdfbbd2f4 88 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
mbed_official 181:a4cbdfbbd2f4 89 * SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
mbed_official 181:a4cbdfbbd2f4 90 * CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
mbed_official 181:a4cbdfbbd2f4 91 * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
mbed_official 181:a4cbdfbbd2f4 92 * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
mbed_official 181:a4cbdfbbd2f4 93 *
mbed_official 181:a4cbdfbbd2f4 94 ******************************************************************************
mbed_official 181:a4cbdfbbd2f4 95 */
mbed_official 181:a4cbdfbbd2f4 96
mbed_official 181:a4cbdfbbd2f4 97 /* Includes ------------------------------------------------------------------*/
mbed_official 181:a4cbdfbbd2f4 98 #include "stm32l0xx_hal.h"
mbed_official 181:a4cbdfbbd2f4 99
mbed_official 181:a4cbdfbbd2f4 100 /** @addtogroup STM32L0xx_HAL_Driver
mbed_official 181:a4cbdfbbd2f4 101 * @{
mbed_official 181:a4cbdfbbd2f4 102 */
mbed_official 181:a4cbdfbbd2f4 103
mbed_official 181:a4cbdfbbd2f4 104 /** @defgroup CORTEX
mbed_official 181:a4cbdfbbd2f4 105 * @brief CORTEX HAL module driver
mbed_official 181:a4cbdfbbd2f4 106 * @{
mbed_official 181:a4cbdfbbd2f4 107 */
mbed_official 181:a4cbdfbbd2f4 108
mbed_official 181:a4cbdfbbd2f4 109 #ifdef HAL_CORTEX_MODULE_ENABLED
mbed_official 181:a4cbdfbbd2f4 110
mbed_official 181:a4cbdfbbd2f4 111 /* Private typedef -----------------------------------------------------------*/
mbed_official 181:a4cbdfbbd2f4 112 /* Private define ------------------------------------------------------------*/
mbed_official 181:a4cbdfbbd2f4 113 /* Private macro -------------------------------------------------------------*/
mbed_official 181:a4cbdfbbd2f4 114 /* Private variables ---------------------------------------------------------*/
mbed_official 181:a4cbdfbbd2f4 115 /* Private function prototypes -----------------------------------------------*/
mbed_official 181:a4cbdfbbd2f4 116 /* Private functions ---------------------------------------------------------*/
mbed_official 181:a4cbdfbbd2f4 117
mbed_official 181:a4cbdfbbd2f4 118 /** @defgroup CORTEX_Private_Functions
mbed_official 181:a4cbdfbbd2f4 119 * @{
mbed_official 181:a4cbdfbbd2f4 120 */
mbed_official 181:a4cbdfbbd2f4 121
mbed_official 181:a4cbdfbbd2f4 122
mbed_official 181:a4cbdfbbd2f4 123 /** @defgroup CORTEX_Group1 Initialization and de-initialization functions
mbed_official 181:a4cbdfbbd2f4 124 * @brief Initialization and Configuration functions
mbed_official 181:a4cbdfbbd2f4 125 *
mbed_official 181:a4cbdfbbd2f4 126 @verbatim
mbed_official 181:a4cbdfbbd2f4 127 ==============================================================================
mbed_official 181:a4cbdfbbd2f4 128 ##### Initialization and de-initialization functions #####
mbed_official 181:a4cbdfbbd2f4 129 ==============================================================================
mbed_official 181:a4cbdfbbd2f4 130 [..]
mbed_official 181:a4cbdfbbd2f4 131 This section provides the CORTEX HAL driver functions allowing to configure Interrupts
mbed_official 181:a4cbdfbbd2f4 132 Systick functionalities
mbed_official 181:a4cbdfbbd2f4 133
mbed_official 181:a4cbdfbbd2f4 134 @endverbatim
mbed_official 181:a4cbdfbbd2f4 135 * @{
mbed_official 181:a4cbdfbbd2f4 136 */
mbed_official 181:a4cbdfbbd2f4 137
mbed_official 181:a4cbdfbbd2f4 138 /**
mbed_official 181:a4cbdfbbd2f4 139 * @brief Sets the priority of an interrupt.
mbed_official 181:a4cbdfbbd2f4 140 * @param IRQn: External interrupt number .
mbed_official 181:a4cbdfbbd2f4 141 * This parameter can be an enumerator of IRQn_Type enumeration
mbed_official 181:a4cbdfbbd2f4 142 * (For the complete STM32 Devices IRQ Channels list, please refer to stm32l0xx.h file)
mbed_official 181:a4cbdfbbd2f4 143 * @param PreemptPriority: The pre-emption priority for the IRQn channel.
mbed_official 181:a4cbdfbbd2f4 144 * This parameter can be a value between 0 and 3.
mbed_official 181:a4cbdfbbd2f4 145 * A lower priority value indicates a higher priority
mbed_official 181:a4cbdfbbd2f4 146 * @param SubPriority: The subpriority level for the IRQ channel.
mbed_official 181:a4cbdfbbd2f4 147 * with stm32l0xx devices, this parameter is a dummy value and it is ignored, because
mbed_official 181:a4cbdfbbd2f4 148 * no subpriority supported in Cortex M0+ based products.
mbed_official 181:a4cbdfbbd2f4 149 * @retval None
mbed_official 181:a4cbdfbbd2f4 150 */
mbed_official 181:a4cbdfbbd2f4 151 void HAL_NVIC_SetPriority(IRQn_Type IRQn, uint32_t PreemptPriority, uint32_t SubPriority)
mbed_official 181:a4cbdfbbd2f4 152 {
mbed_official 181:a4cbdfbbd2f4 153 /* Check the parameters */
mbed_official 181:a4cbdfbbd2f4 154 assert_param(IS_NVIC_PREEMPTION_PRIORITY(PreemptPriority));
mbed_official 181:a4cbdfbbd2f4 155 NVIC_SetPriority(IRQn,PreemptPriority);
mbed_official 181:a4cbdfbbd2f4 156 }
mbed_official 181:a4cbdfbbd2f4 157
mbed_official 181:a4cbdfbbd2f4 158 /**
mbed_official 181:a4cbdfbbd2f4 159 * @brief Enables a device specific interrupt in the NVIC interrupt controller.
mbed_official 181:a4cbdfbbd2f4 160 * @note To configure interrupts priority correctly, the NVIC_PriorityGroupConfig()
mbed_official 181:a4cbdfbbd2f4 161 * function should be called before.
mbed_official 181:a4cbdfbbd2f4 162 * @param IRQn External interrupt number .
mbed_official 181:a4cbdfbbd2f4 163 * This parameter can be an enumerator of IRQn_Type enumeration
mbed_official 181:a4cbdfbbd2f4 164 * (For the complete STM32 Devices IRQ Channels list, please refer to stm32l0xx.h file)
mbed_official 181:a4cbdfbbd2f4 165 * @retval None
mbed_official 181:a4cbdfbbd2f4 166 */
mbed_official 181:a4cbdfbbd2f4 167 void HAL_NVIC_EnableIRQ(IRQn_Type IRQn)
mbed_official 181:a4cbdfbbd2f4 168 {
mbed_official 181:a4cbdfbbd2f4 169 /* Enable interrupt */
mbed_official 181:a4cbdfbbd2f4 170 NVIC_EnableIRQ(IRQn);
mbed_official 181:a4cbdfbbd2f4 171 }
mbed_official 181:a4cbdfbbd2f4 172
mbed_official 181:a4cbdfbbd2f4 173 /**
mbed_official 181:a4cbdfbbd2f4 174 * @brief Disables a device specific interrupt in the NVIC interrupt controller.
mbed_official 181:a4cbdfbbd2f4 175 * @param IRQn External interrupt number .
mbed_official 181:a4cbdfbbd2f4 176 * This parameter can be an enumerator of IRQn_Type enumeration
mbed_official 181:a4cbdfbbd2f4 177 * (For the complete STM32 Devices IRQ Channels list, please refer to stm32l0xx.h file)
mbed_official 181:a4cbdfbbd2f4 178 * @retval None
mbed_official 181:a4cbdfbbd2f4 179 */
mbed_official 181:a4cbdfbbd2f4 180 void HAL_NVIC_DisableIRQ(IRQn_Type IRQn)
mbed_official 181:a4cbdfbbd2f4 181 {
mbed_official 181:a4cbdfbbd2f4 182 /* Disable interrupt */
mbed_official 181:a4cbdfbbd2f4 183 NVIC_DisableIRQ(IRQn);
mbed_official 181:a4cbdfbbd2f4 184 }
mbed_official 181:a4cbdfbbd2f4 185
mbed_official 181:a4cbdfbbd2f4 186 /**
mbed_official 181:a4cbdfbbd2f4 187 * @brief Initiates a system reset request to reset the MCU.
mbed_official 181:a4cbdfbbd2f4 188 * @param None
mbed_official 181:a4cbdfbbd2f4 189 * @retval None
mbed_official 181:a4cbdfbbd2f4 190 */
mbed_official 181:a4cbdfbbd2f4 191 void HAL_NVIC_SystemReset(void)
mbed_official 181:a4cbdfbbd2f4 192 {
mbed_official 181:a4cbdfbbd2f4 193 /* System Reset */
mbed_official 181:a4cbdfbbd2f4 194 NVIC_SystemReset();
mbed_official 181:a4cbdfbbd2f4 195 }
mbed_official 181:a4cbdfbbd2f4 196
mbed_official 181:a4cbdfbbd2f4 197 /**
mbed_official 181:a4cbdfbbd2f4 198 * @brief Initializes the System Timer and its interrupt, and starts the System Tick Timer.
mbed_official 181:a4cbdfbbd2f4 199 * Counter is in free running mode to generate periodic interrupts.
mbed_official 181:a4cbdfbbd2f4 200 * @param TicksNumb: Specifies the ticks Number of ticks between two interrupts.
mbed_official 181:a4cbdfbbd2f4 201 * @retval status: - 0 Function succeeded.
mbed_official 181:a4cbdfbbd2f4 202 * - 1 Function failed.
mbed_official 181:a4cbdfbbd2f4 203 */
mbed_official 181:a4cbdfbbd2f4 204 uint32_t HAL_SYSTICK_Config(uint32_t TicksNumb)
mbed_official 181:a4cbdfbbd2f4 205 {
mbed_official 181:a4cbdfbbd2f4 206 return SysTick_Config(TicksNumb);
mbed_official 181:a4cbdfbbd2f4 207 }
mbed_official 181:a4cbdfbbd2f4 208 /**
mbed_official 181:a4cbdfbbd2f4 209 * @}
mbed_official 181:a4cbdfbbd2f4 210 */
mbed_official 181:a4cbdfbbd2f4 211
mbed_official 181:a4cbdfbbd2f4 212 /** @defgroup CORTEX_Group2 Peripheral Control functions
mbed_official 181:a4cbdfbbd2f4 213 * @brief Cortex control functions
mbed_official 181:a4cbdfbbd2f4 214 *
mbed_official 181:a4cbdfbbd2f4 215 @verbatim
mbed_official 181:a4cbdfbbd2f4 216 ==============================================================================
mbed_official 181:a4cbdfbbd2f4 217 ##### Peripheral Control functions #####
mbed_official 181:a4cbdfbbd2f4 218 ==============================================================================
mbed_official 181:a4cbdfbbd2f4 219 [..]
mbed_official 181:a4cbdfbbd2f4 220 This subsection provides a set of functions allowing to control the CORTEX
mbed_official 181:a4cbdfbbd2f4 221 (NVIC, SYSTICK) functionalities.
mbed_official 181:a4cbdfbbd2f4 222
mbed_official 181:a4cbdfbbd2f4 223
mbed_official 181:a4cbdfbbd2f4 224 @endverbatim
mbed_official 181:a4cbdfbbd2f4 225 * @{
mbed_official 181:a4cbdfbbd2f4 226 */
mbed_official 181:a4cbdfbbd2f4 227
mbed_official 181:a4cbdfbbd2f4 228
mbed_official 181:a4cbdfbbd2f4 229
mbed_official 181:a4cbdfbbd2f4 230 /**
mbed_official 181:a4cbdfbbd2f4 231 * @brief Sets Pending bit of an external interrupt.
mbed_official 181:a4cbdfbbd2f4 232 * @param IRQn External interrupt number
mbed_official 181:a4cbdfbbd2f4 233 * This parameter can be an enumerator of @ref IRQn_Type enumeration
mbed_official 181:a4cbdfbbd2f4 234 * (For the complete STM32 Devices IRQ Channels list, please refer to stm32l0xx.h file)
mbed_official 181:a4cbdfbbd2f4 235 * @retval None
mbed_official 181:a4cbdfbbd2f4 236 */
mbed_official 181:a4cbdfbbd2f4 237 void HAL_NVIC_SetPendingIRQ(IRQn_Type IRQn)
mbed_official 181:a4cbdfbbd2f4 238 {
mbed_official 181:a4cbdfbbd2f4 239 /* Set interrupt pending */
mbed_official 181:a4cbdfbbd2f4 240 NVIC_SetPendingIRQ(IRQn);
mbed_official 181:a4cbdfbbd2f4 241 }
mbed_official 181:a4cbdfbbd2f4 242
mbed_official 181:a4cbdfbbd2f4 243 /**
mbed_official 181:a4cbdfbbd2f4 244 * @brief Gets Pending Interrupt (reads the pending register in the NVIC
mbed_official 181:a4cbdfbbd2f4 245 * and returns the pending bit for the specified interrupt).
mbed_official 181:a4cbdfbbd2f4 246 * @param IRQn External interrupt number .
mbed_official 181:a4cbdfbbd2f4 247 * This parameter can be an enumerator of IRQn_Type enumeration
mbed_official 181:a4cbdfbbd2f4 248 * (For the complete STM32 Devices IRQ Channels list, please refer to stm32l0xx.h file)
mbed_official 181:a4cbdfbbd2f4 249 * @retval status: - 0 Interrupt status is not pending.
mbed_official 181:a4cbdfbbd2f4 250 * - 1 Interrupt status is pending.
mbed_official 181:a4cbdfbbd2f4 251 */
mbed_official 181:a4cbdfbbd2f4 252 uint32_t HAL_NVIC_GetPendingIRQ(IRQn_Type IRQn)
mbed_official 181:a4cbdfbbd2f4 253 {
mbed_official 181:a4cbdfbbd2f4 254 /* Return 1 if pending else 0 */
mbed_official 181:a4cbdfbbd2f4 255 return NVIC_GetPendingIRQ(IRQn);
mbed_official 181:a4cbdfbbd2f4 256 }
mbed_official 181:a4cbdfbbd2f4 257
mbed_official 181:a4cbdfbbd2f4 258 /**
mbed_official 181:a4cbdfbbd2f4 259 * @brief Clears the pending bit of an external interrupt.
mbed_official 181:a4cbdfbbd2f4 260 * @param IRQn External interrupt number .
mbed_official 181:a4cbdfbbd2f4 261 * This parameter can be an enumerator of IRQn_Type enumeration
mbed_official 181:a4cbdfbbd2f4 262 * (For the complete STM32 Devices IRQ Channels list, please refer to stm32l0xx.h file)
mbed_official 181:a4cbdfbbd2f4 263 * @retval None
mbed_official 181:a4cbdfbbd2f4 264 */
mbed_official 181:a4cbdfbbd2f4 265 void HAL_NVIC_ClearPendingIRQ(IRQn_Type IRQn)
mbed_official 181:a4cbdfbbd2f4 266 {
mbed_official 181:a4cbdfbbd2f4 267 /* Clear pending interrupt */
mbed_official 181:a4cbdfbbd2f4 268 NVIC_ClearPendingIRQ(IRQn);
mbed_official 181:a4cbdfbbd2f4 269 }
mbed_official 181:a4cbdfbbd2f4 270
mbed_official 181:a4cbdfbbd2f4 271
mbed_official 181:a4cbdfbbd2f4 272 /**
mbed_official 181:a4cbdfbbd2f4 273 * @brief Configures the SysTick clock source.
mbed_official 181:a4cbdfbbd2f4 274 * @param CLKSource: specifies the SysTick clock source.
mbed_official 181:a4cbdfbbd2f4 275 * This parameter can be one of the following values:
mbed_official 181:a4cbdfbbd2f4 276 * @arg SYSTICK_CLKSOURCE_HCLK_DIV8: AHB clock divided by 8 selected as SysTick clock source.
mbed_official 181:a4cbdfbbd2f4 277 * @arg SYSTICK_CLKSOURCE_HCLK: AHB clock selected as SysTick clock source.
mbed_official 181:a4cbdfbbd2f4 278 * @retval None
mbed_official 181:a4cbdfbbd2f4 279 */
mbed_official 181:a4cbdfbbd2f4 280 void HAL_SYSTICK_CLKSourceConfig(uint32_t CLKSource)
mbed_official 181:a4cbdfbbd2f4 281 {
mbed_official 181:a4cbdfbbd2f4 282 /* Check the parameters */
mbed_official 181:a4cbdfbbd2f4 283 assert_param(IS_SYSTICK_CLK_SOURCE(CLKSource));
mbed_official 181:a4cbdfbbd2f4 284 if (CLKSource == SYSTICK_CLKSOURCE_HCLK)
mbed_official 181:a4cbdfbbd2f4 285 {
mbed_official 181:a4cbdfbbd2f4 286 SysTick->CTRL |= SYSTICK_CLKSOURCE_HCLK;
mbed_official 181:a4cbdfbbd2f4 287 }
mbed_official 181:a4cbdfbbd2f4 288 else
mbed_official 181:a4cbdfbbd2f4 289 {
mbed_official 181:a4cbdfbbd2f4 290 SysTick->CTRL &= ~SYSTICK_CLKSOURCE_HCLK;
mbed_official 181:a4cbdfbbd2f4 291 }
mbed_official 181:a4cbdfbbd2f4 292 }
mbed_official 181:a4cbdfbbd2f4 293
mbed_official 181:a4cbdfbbd2f4 294 /**
mbed_official 181:a4cbdfbbd2f4 295 * @brief This function handles SYSTICK interrupt request.
mbed_official 181:a4cbdfbbd2f4 296 * @param None
mbed_official 181:a4cbdfbbd2f4 297 * @retval None
mbed_official 181:a4cbdfbbd2f4 298 */
mbed_official 181:a4cbdfbbd2f4 299 void HAL_SYSTICK_IRQHandler(void)
mbed_official 181:a4cbdfbbd2f4 300 {
mbed_official 181:a4cbdfbbd2f4 301 HAL_SYSTICK_Callback();
mbed_official 181:a4cbdfbbd2f4 302 }
mbed_official 181:a4cbdfbbd2f4 303
mbed_official 181:a4cbdfbbd2f4 304 /**
mbed_official 181:a4cbdfbbd2f4 305 * @brief SYSTICK callback.
mbed_official 181:a4cbdfbbd2f4 306 * @param None
mbed_official 181:a4cbdfbbd2f4 307 * @retval None
mbed_official 181:a4cbdfbbd2f4 308 */
mbed_official 181:a4cbdfbbd2f4 309 __weak void HAL_SYSTICK_Callback(void)
mbed_official 181:a4cbdfbbd2f4 310 {
mbed_official 181:a4cbdfbbd2f4 311 /* NOTE : This function Should not be modified, when the callback is needed,
mbed_official 181:a4cbdfbbd2f4 312 the HAL_SYSTICK_Callback could be implemented in the user file
mbed_official 181:a4cbdfbbd2f4 313 */
mbed_official 181:a4cbdfbbd2f4 314 }
mbed_official 181:a4cbdfbbd2f4 315
mbed_official 181:a4cbdfbbd2f4 316 /**
mbed_official 181:a4cbdfbbd2f4 317 * @}
mbed_official 181:a4cbdfbbd2f4 318 */
mbed_official 181:a4cbdfbbd2f4 319
mbed_official 181:a4cbdfbbd2f4 320 /**
mbed_official 181:a4cbdfbbd2f4 321 * @}
mbed_official 181:a4cbdfbbd2f4 322 */
mbed_official 181:a4cbdfbbd2f4 323
mbed_official 181:a4cbdfbbd2f4 324 #endif /* HAL_CORTEX_MODULE_ENABLED */
mbed_official 181:a4cbdfbbd2f4 325 /**
mbed_official 181:a4cbdfbbd2f4 326 * @}
mbed_official 181:a4cbdfbbd2f4 327 */
mbed_official 181:a4cbdfbbd2f4 328
mbed_official 181:a4cbdfbbd2f4 329 /**
mbed_official 181:a4cbdfbbd2f4 330 * @}
mbed_official 181:a4cbdfbbd2f4 331 */
mbed_official 181:a4cbdfbbd2f4 332
mbed_official 181:a4cbdfbbd2f4 333 /************************ (C) COPYRIGHT STMicroelectronics *****END OF FILE****/