en 129 / mbed-dev

fix LPC812 PWM

Dependents:   IR_LED_Send

Fork of mbed-dev by mbed official

targets/cmsis/TARGET_STM/TARGET_STM32F0/stm32f0xx_hal_cortex.c@129:2e517c56bcfb, 2016-05-16 (annotated)

Committer:
nameless129
Date:
Mon May 16 16:50:30 2016 +0000
Revision:
129:2e517c56bcfb
Parent:
0:9b334a45a8ff 
PWM Fix:Duty 0%??H???????????????

Who changed what in which revision?

UserRevisionLine numberNew contents of line
bogdanm 0:9b334a45a8ff 1 /**
bogdanm 0:9b334a45a8ff 2 ******************************************************************************
bogdanm 0:9b334a45a8ff 3 * @file stm32f0xx_hal_cortex.c
bogdanm 0:9b334a45a8ff 4 * @author MCD Application Team
bogdanm 0:9b334a45a8ff 5 * @version V1.3.0
bogdanm 0:9b334a45a8ff 6 * @date 26-June-2015
bogdanm 0:9b334a45a8ff 7 * @brief CORTEX HAL module driver.
bogdanm 0:9b334a45a8ff 8 * This file provides firmware functions to manage the following
bogdanm 0:9b334a45a8ff 9 * functionalities of the CORTEX:
bogdanm 0:9b334a45a8ff 10 * + Initialization and de-initialization functions
bogdanm 0:9b334a45a8ff 11 * + Peripheral Control functions
bogdanm 0:9b334a45a8ff 12 *
bogdanm 0:9b334a45a8ff 13 * @verbatim
bogdanm 0:9b334a45a8ff 14 ==============================================================================
bogdanm 0:9b334a45a8ff 15 ##### How to use this driver #####
bogdanm 0:9b334a45a8ff 16 ==============================================================================
bogdanm 0:9b334a45a8ff 17
bogdanm 0:9b334a45a8ff 18 [..]
bogdanm 0:9b334a45a8ff 19 *** How to configure Interrupts using CORTEX HAL driver ***
bogdanm 0:9b334a45a8ff 20 ===========================================================
bogdanm 0:9b334a45a8ff 21 [..]
bogdanm 0:9b334a45a8ff 22 This section provides functions allowing to configure the NVIC interrupts (IRQ).
bogdanm 0:9b334a45a8ff 23 The Cortex-M0 exceptions are managed by CMSIS functions.
bogdanm 0:9b334a45a8ff 24 (#) Enable and Configure the priority of the selected IRQ Channels.
bogdanm 0:9b334a45a8ff 25 The priority can be 0..3.
bogdanm 0:9b334a45a8ff 26
bogdanm 0:9b334a45a8ff 27 -@- Lower priority values gives higher priority.
bogdanm 0:9b334a45a8ff 28 -@- Priority Order:
bogdanm 0:9b334a45a8ff 29 (#@) Lowest priority.
bogdanm 0:9b334a45a8ff 30 (#@) Lowest hardware priority (IRQn position).
bogdanm 0:9b334a45a8ff 31
bogdanm 0:9b334a45a8ff 32 (#) Configure the priority of the selected IRQ Channels using HAL_NVIC_SetPriority()
bogdanm 0:9b334a45a8ff 33
bogdanm 0:9b334a45a8ff 34 (#) Enable the selected IRQ Channels using HAL_NVIC_EnableIRQ()
bogdanm 0:9b334a45a8ff 35
bogdanm 0:9b334a45a8ff 36 -@- Negative value of IRQn_Type are not allowed.
bogdanm 0:9b334a45a8ff 37
bogdanm 0:9b334a45a8ff 38
bogdanm 0:9b334a45a8ff 39 [..]
bogdanm 0:9b334a45a8ff 40 *** How to configure Systick using CORTEX HAL driver ***
bogdanm 0:9b334a45a8ff 41 ========================================================
bogdanm 0:9b334a45a8ff 42 [..]
bogdanm 0:9b334a45a8ff 43 Setup SysTick Timer for time base.
bogdanm 0:9b334a45a8ff 44
bogdanm 0:9b334a45a8ff 45 (+) The HAL_SYSTICK_Config()function calls the SysTick_Config() function which
bogdanm 0:9b334a45a8ff 46 is a CMSIS function that:
bogdanm 0:9b334a45a8ff 47 (++) Configures the SysTick Reload register with value passed as function parameter.
bogdanm 0:9b334a45a8ff 48 (++) Configures the SysTick IRQ priority to the lowest value (0x03).
bogdanm 0:9b334a45a8ff 49 (++) Resets the SysTick Counter register.
bogdanm 0:9b334a45a8ff 50 (++) Configures the SysTick Counter clock source to be Core Clock Source (HCLK).
bogdanm 0:9b334a45a8ff 51 (++) Enables the SysTick Interrupt.
bogdanm 0:9b334a45a8ff 52 (++) Starts the SysTick Counter.
bogdanm 0:9b334a45a8ff 53
bogdanm 0:9b334a45a8ff 54 (+) You can change the SysTick Clock source to be HCLK_Div8 by calling the macro
bogdanm 0:9b334a45a8ff 55 __HAL_CORTEX_SYSTICKCLK_CONFIG(SYSTICK_CLKSOURCE_HCLK_DIV8) just after the
bogdanm 0:9b334a45a8ff 56 HAL_SYSTICK_Config() function call. The __HAL_CORTEX_SYSTICKCLK_CONFIG() macro is defined
bogdanm 0:9b334a45a8ff 57 inside the stm32f0xx_hal_cortex.h file.
bogdanm 0:9b334a45a8ff 58
bogdanm 0:9b334a45a8ff 59 (+) You can change the SysTick IRQ priority by calling the
bogdanm 0:9b334a45a8ff 60 HAL_NVIC_SetPriority(SysTick_IRQn,...) function just after the HAL_SYSTICK_Config() function
bogdanm 0:9b334a45a8ff 61 call. The HAL_NVIC_SetPriority() call the NVIC_SetPriority() function which is a CMSIS function.
bogdanm 0:9b334a45a8ff 62
bogdanm 0:9b334a45a8ff 63 (+) To adjust the SysTick time base, use the following formula:
bogdanm 0:9b334a45a8ff 64
bogdanm 0:9b334a45a8ff 65 Reload Value = SysTick Counter Clock (Hz) x Desired Time base (s)
bogdanm 0:9b334a45a8ff 66 (++) Reload Value is the parameter to be passed for HAL_SYSTICK_Config() function
bogdanm 0:9b334a45a8ff 67 (++) Reload Value should not exceed 0xFFFFFF
bogdanm 0:9b334a45a8ff 68
bogdanm 0:9b334a45a8ff 69 @endverbatim
bogdanm 0:9b334a45a8ff 70 ******************************************************************************
bogdanm 0:9b334a45a8ff 71 * @attention
bogdanm 0:9b334a45a8ff 72 *
bogdanm 0:9b334a45a8ff 73 * <h2><center>&copy; COPYRIGHT(c) 2015 STMicroelectronics</center></h2>
bogdanm 0:9b334a45a8ff 74 *
bogdanm 0:9b334a45a8ff 75 * Redistribution and use in source and binary forms, with or without modification,
bogdanm 0:9b334a45a8ff 76 * are permitted provided that the following conditions are met:
bogdanm 0:9b334a45a8ff 77 * 1. Redistributions of source code must retain the above copyright notice,
bogdanm 0:9b334a45a8ff 78 * this list of conditions and the following disclaimer.
bogdanm 0:9b334a45a8ff 79 * 2. Redistributions in binary form must reproduce the above copyright notice,
bogdanm 0:9b334a45a8ff 80 * this list of conditions and the following disclaimer in the documentation
bogdanm 0:9b334a45a8ff 81 * and/or other materials provided with the distribution.
bogdanm 0:9b334a45a8ff 82 * 3. Neither the name of STMicroelectronics nor the names of its contributors
bogdanm 0:9b334a45a8ff 83 * may be used to endorse or promote products derived from this software
bogdanm 0:9b334a45a8ff 84 * without specific prior written permission.
bogdanm 0:9b334a45a8ff 85 *
bogdanm 0:9b334a45a8ff 86 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
bogdanm 0:9b334a45a8ff 87 * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
bogdanm 0:9b334a45a8ff 88 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
bogdanm 0:9b334a45a8ff 89 * DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE
bogdanm 0:9b334a45a8ff 90 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
bogdanm 0:9b334a45a8ff 91 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
bogdanm 0:9b334a45a8ff 92 * SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
bogdanm 0:9b334a45a8ff 93 * CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
bogdanm 0:9b334a45a8ff 94 * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
bogdanm 0:9b334a45a8ff 95 * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
bogdanm 0:9b334a45a8ff 96 *
bogdanm 0:9b334a45a8ff 97 ******************************************************************************
bogdanm 0:9b334a45a8ff 98 */
bogdanm 0:9b334a45a8ff 99
bogdanm 0:9b334a45a8ff 100 /* Includes ------------------------------------------------------------------*/
bogdanm 0:9b334a45a8ff 101 #include "stm32f0xx_hal.h"
bogdanm 0:9b334a45a8ff 102
bogdanm 0:9b334a45a8ff 103 /** @addtogroup STM32F0xx_HAL_Driver
bogdanm 0:9b334a45a8ff 104 * @{
bogdanm 0:9b334a45a8ff 105 */
bogdanm 0:9b334a45a8ff 106
bogdanm 0:9b334a45a8ff 107 /** @defgroup CORTEX CORTEX
bogdanm 0:9b334a45a8ff 108 * @brief CORTEX CORTEX HAL module driver
bogdanm 0:9b334a45a8ff 109 * @{
bogdanm 0:9b334a45a8ff 110 */
bogdanm 0:9b334a45a8ff 111
bogdanm 0:9b334a45a8ff 112 #ifdef HAL_CORTEX_MODULE_ENABLED
bogdanm 0:9b334a45a8ff 113
bogdanm 0:9b334a45a8ff 114 /* Private typedef -----------------------------------------------------------*/
bogdanm 0:9b334a45a8ff 115 /* Private define ------------------------------------------------------------*/
bogdanm 0:9b334a45a8ff 116 /* Private macro -------------------------------------------------------------*/
bogdanm 0:9b334a45a8ff 117 /* Private variables ---------------------------------------------------------*/
bogdanm 0:9b334a45a8ff 118 /* Private function prototypes -----------------------------------------------*/
bogdanm 0:9b334a45a8ff 119 /* Exported functions ---------------------------------------------------------*/
bogdanm 0:9b334a45a8ff 120
bogdanm 0:9b334a45a8ff 121 /** @defgroup CORTEX_Exported_Functions CORTEX Exported Functions
bogdanm 0:9b334a45a8ff 122 * @{
bogdanm 0:9b334a45a8ff 123 */
bogdanm 0:9b334a45a8ff 124
bogdanm 0:9b334a45a8ff 125
bogdanm 0:9b334a45a8ff 126 /** @defgroup CORTEX_Exported_Functions_Group1 Initialization and de-initialization functions
bogdanm 0:9b334a45a8ff 127 * @brief Initialization and Configuration functions
bogdanm 0:9b334a45a8ff 128 *
bogdanm 0:9b334a45a8ff 129 @verbatim
bogdanm 0:9b334a45a8ff 130 ==============================================================================
bogdanm 0:9b334a45a8ff 131 ##### Initialization and de-initialization functions #####
bogdanm 0:9b334a45a8ff 132 ==============================================================================
bogdanm 0:9b334a45a8ff 133 [..]
bogdanm 0:9b334a45a8ff 134 This section provides the CORTEX HAL driver functions allowing to configure Interrupts
bogdanm 0:9b334a45a8ff 135 Systick functionalities
bogdanm 0:9b334a45a8ff 136
bogdanm 0:9b334a45a8ff 137 @endverbatim
bogdanm 0:9b334a45a8ff 138 * @{
bogdanm 0:9b334a45a8ff 139 */
bogdanm 0:9b334a45a8ff 140
bogdanm 0:9b334a45a8ff 141 /**
bogdanm 0:9b334a45a8ff 142 * @brief Sets the priority of an interrupt.
bogdanm 0:9b334a45a8ff 143 * @param IRQn: External interrupt number .
bogdanm 0:9b334a45a8ff 144 * This parameter can be an enumerator of IRQn_Type enumeration
bogdanm 0:9b334a45a8ff 145 * (For the complete STM32 Devices IRQ Channels list, please refer to stm32l0xx.h file)
bogdanm 0:9b334a45a8ff 146 * @param PreemptPriority: The preemption priority for the IRQn channel.
bogdanm 0:9b334a45a8ff 147 * This parameter can be a value between 0 and 3.
bogdanm 0:9b334a45a8ff 148 * A lower priority value indicates a higher priority
bogdanm 0:9b334a45a8ff 149 * @param SubPriority: the subpriority level for the IRQ channel.
bogdanm 0:9b334a45a8ff 150 * with stm32f0xx devices, this parameter is a dummy value and it is ignored, because
bogdanm 0:9b334a45a8ff 151 * no subpriority supported in Cortex M0 based products.
bogdanm 0:9b334a45a8ff 152 * @retval None
bogdanm 0:9b334a45a8ff 153 */
bogdanm 0:9b334a45a8ff 154 void HAL_NVIC_SetPriority(IRQn_Type IRQn, uint32_t PreemptPriority, uint32_t SubPriority)
bogdanm 0:9b334a45a8ff 155 {
bogdanm 0:9b334a45a8ff 156 /* Check the parameters */
bogdanm 0:9b334a45a8ff 157 assert_param(IS_NVIC_PREEMPTION_PRIORITY(PreemptPriority));
bogdanm 0:9b334a45a8ff 158 NVIC_SetPriority(IRQn,PreemptPriority);
bogdanm 0:9b334a45a8ff 159 }
bogdanm 0:9b334a45a8ff 160
bogdanm 0:9b334a45a8ff 161 /**
bogdanm 0:9b334a45a8ff 162 * @brief Enables a device specific interrupt in the NVIC interrupt controller.
bogdanm 0:9b334a45a8ff 163 * @note To configure interrupts priority correctly, the NVIC_PriorityGroupConfig()
bogdanm 0:9b334a45a8ff 164 * function should be called before.
bogdanm 0:9b334a45a8ff 165 * @param IRQn External interrupt number.
bogdanm 0:9b334a45a8ff 166 * This parameter can be an enumerator of IRQn_Type enumeration
bogdanm 0:9b334a45a8ff 167 * (For the complete STM32 Devices IRQ Channels list, please refer to the appropriate CMSIS device file (stm32f0xxxx.h))
bogdanm 0:9b334a45a8ff 168 * @retval None
bogdanm 0:9b334a45a8ff 169 */
bogdanm 0:9b334a45a8ff 170 void HAL_NVIC_EnableIRQ(IRQn_Type IRQn)
bogdanm 0:9b334a45a8ff 171 {
bogdanm 0:9b334a45a8ff 172 /* Check the parameters */
bogdanm 0:9b334a45a8ff 173 assert_param(IS_NVIC_DEVICE_IRQ(IRQn));
bogdanm 0:9b334a45a8ff 174
bogdanm 0:9b334a45a8ff 175 /* Enable interrupt */
bogdanm 0:9b334a45a8ff 176 NVIC_EnableIRQ(IRQn);
bogdanm 0:9b334a45a8ff 177 }
bogdanm 0:9b334a45a8ff 178
bogdanm 0:9b334a45a8ff 179 /**
bogdanm 0:9b334a45a8ff 180 * @brief Disables a device specific interrupt in the NVIC interrupt controller.
bogdanm 0:9b334a45a8ff 181 * @param IRQn External interrupt number.
bogdanm 0:9b334a45a8ff 182 * This parameter can be an enumerator of IRQn_Type enumeration
bogdanm 0:9b334a45a8ff 183 * (For the complete STM32 Devices IRQ Channels list, please refer to the appropriate CMSIS device file (stm32f0xxxx.h))
bogdanm 0:9b334a45a8ff 184 * @retval None
bogdanm 0:9b334a45a8ff 185 */
bogdanm 0:9b334a45a8ff 186 void HAL_NVIC_DisableIRQ(IRQn_Type IRQn)
bogdanm 0:9b334a45a8ff 187 {
bogdanm 0:9b334a45a8ff 188 /* Check the parameters */
bogdanm 0:9b334a45a8ff 189 assert_param(IS_NVIC_DEVICE_IRQ(IRQn));
bogdanm 0:9b334a45a8ff 190
bogdanm 0:9b334a45a8ff 191 /* Disable interrupt */
bogdanm 0:9b334a45a8ff 192 NVIC_DisableIRQ(IRQn);
bogdanm 0:9b334a45a8ff 193 }
bogdanm 0:9b334a45a8ff 194
bogdanm 0:9b334a45a8ff 195 /**
bogdanm 0:9b334a45a8ff 196 * @brief Initiates a system reset request to reset the MCU.
bogdanm 0:9b334a45a8ff 197 * @retval None
bogdanm 0:9b334a45a8ff 198 */
bogdanm 0:9b334a45a8ff 199 void HAL_NVIC_SystemReset(void)
bogdanm 0:9b334a45a8ff 200 {
bogdanm 0:9b334a45a8ff 201 /* System Reset */
bogdanm 0:9b334a45a8ff 202 NVIC_SystemReset();
bogdanm 0:9b334a45a8ff 203 }
bogdanm 0:9b334a45a8ff 204
bogdanm 0:9b334a45a8ff 205 /**
bogdanm 0:9b334a45a8ff 206 * @brief Initializes the System Timer and its interrupt, and starts the System Tick Timer.
bogdanm 0:9b334a45a8ff 207 * Counter is in free running mode to generate periodic interrupts.
bogdanm 0:9b334a45a8ff 208 * @param TicksNumb: Specifies the ticks Number of ticks between two interrupts.
bogdanm 0:9b334a45a8ff 209 * @retval status: - 0 Function succeeded.
bogdanm 0:9b334a45a8ff 210 * - 1 Function failed.
bogdanm 0:9b334a45a8ff 211 */
bogdanm 0:9b334a45a8ff 212 uint32_t HAL_SYSTICK_Config(uint32_t TicksNumb)
bogdanm 0:9b334a45a8ff 213 {
bogdanm 0:9b334a45a8ff 214 return SysTick_Config(TicksNumb);
bogdanm 0:9b334a45a8ff 215 }
bogdanm 0:9b334a45a8ff 216 /**
bogdanm 0:9b334a45a8ff 217 * @}
bogdanm 0:9b334a45a8ff 218 */
bogdanm 0:9b334a45a8ff 219
bogdanm 0:9b334a45a8ff 220 /** @defgroup CORTEX_Exported_Functions_Group2 Peripheral Control functions
bogdanm 0:9b334a45a8ff 221 * @brief Cortex control functions
bogdanm 0:9b334a45a8ff 222 *
bogdanm 0:9b334a45a8ff 223 @verbatim
bogdanm 0:9b334a45a8ff 224 ==============================================================================
bogdanm 0:9b334a45a8ff 225 ##### Peripheral Control functions #####
bogdanm 0:9b334a45a8ff 226 ==============================================================================
bogdanm 0:9b334a45a8ff 227 [..]
bogdanm 0:9b334a45a8ff 228 This subsection provides a set of functions allowing to control the CORTEX
bogdanm 0:9b334a45a8ff 229 (NVIC, SYSTICK) functionalities.
bogdanm 0:9b334a45a8ff 230
bogdanm 0:9b334a45a8ff 231
bogdanm 0:9b334a45a8ff 232 @endverbatim
bogdanm 0:9b334a45a8ff 233 * @{
bogdanm 0:9b334a45a8ff 234 */
bogdanm 0:9b334a45a8ff 235
bogdanm 0:9b334a45a8ff 236
bogdanm 0:9b334a45a8ff 237 /**
bogdanm 0:9b334a45a8ff 238 * @brief Gets the priority of an interrupt.
bogdanm 0:9b334a45a8ff 239 * @param IRQn: External interrupt number.
bogdanm 0:9b334a45a8ff 240 * This parameter can be an enumerator of IRQn_Type enumeration
bogdanm 0:9b334a45a8ff 241 * (For the complete STM32 Devices IRQ Channels list, please refer to the appropriate CMSIS device file (stm32f0xxxx.h))
bogdanm 0:9b334a45a8ff 242 * @retval None
bogdanm 0:9b334a45a8ff 243 */
bogdanm 0:9b334a45a8ff 244 uint32_t HAL_NVIC_GetPriority(IRQn_Type IRQn)
bogdanm 0:9b334a45a8ff 245 {
bogdanm 0:9b334a45a8ff 246 /* Get priority for Cortex-M system or device specific interrupts */
bogdanm 0:9b334a45a8ff 247 return NVIC_GetPriority(IRQn);
bogdanm 0:9b334a45a8ff 248 }
bogdanm 0:9b334a45a8ff 249
bogdanm 0:9b334a45a8ff 250 /**
bogdanm 0:9b334a45a8ff 251 * @brief Sets Pending bit of an external interrupt.
bogdanm 0:9b334a45a8ff 252 * @param IRQn External interrupt number
bogdanm 0:9b334a45a8ff 253 * This parameter can be an enumerator of IRQn_Type enumeration
bogdanm 0:9b334a45a8ff 254 * (For the complete STM32 Devices IRQ Channels list, please refer to the appropriate CMSIS device file (stm32f0xxxx.h))
bogdanm 0:9b334a45a8ff 255 * @retval None
bogdanm 0:9b334a45a8ff 256 */
bogdanm 0:9b334a45a8ff 257 void HAL_NVIC_SetPendingIRQ(IRQn_Type IRQn)
bogdanm 0:9b334a45a8ff 258 {
bogdanm 0:9b334a45a8ff 259 /* Check the parameters */
bogdanm 0:9b334a45a8ff 260 assert_param(IS_NVIC_DEVICE_IRQ(IRQn));
bogdanm 0:9b334a45a8ff 261
bogdanm 0:9b334a45a8ff 262 /* Set interrupt pending */
bogdanm 0:9b334a45a8ff 263 NVIC_SetPendingIRQ(IRQn);
bogdanm 0:9b334a45a8ff 264 }
bogdanm 0:9b334a45a8ff 265
bogdanm 0:9b334a45a8ff 266 /**
bogdanm 0:9b334a45a8ff 267 * @brief Gets Pending Interrupt (reads the pending register in the NVIC
bogdanm 0:9b334a45a8ff 268 * and returns the pending bit for the specified interrupt).
bogdanm 0:9b334a45a8ff 269 * @param IRQn External interrupt number.
bogdanm 0:9b334a45a8ff 270 * This parameter can be an enumerator of IRQn_Type enumeration
bogdanm 0:9b334a45a8ff 271 * (For the complete STM32 Devices IRQ Channels list, please refer to the appropriate CMSIS device file (stm32f0xxxx.h))
bogdanm 0:9b334a45a8ff 272 * @retval status: - 0 Interrupt status is not pending.
bogdanm 0:9b334a45a8ff 273 * - 1 Interrupt status is pending.
bogdanm 0:9b334a45a8ff 274 */
bogdanm 0:9b334a45a8ff 275 uint32_t HAL_NVIC_GetPendingIRQ(IRQn_Type IRQn)
bogdanm 0:9b334a45a8ff 276 {
bogdanm 0:9b334a45a8ff 277 /* Check the parameters */
bogdanm 0:9b334a45a8ff 278 assert_param(IS_NVIC_DEVICE_IRQ(IRQn));
bogdanm 0:9b334a45a8ff 279
bogdanm 0:9b334a45a8ff 280 /* Return 1 if pending else 0 */
bogdanm 0:9b334a45a8ff 281 return NVIC_GetPendingIRQ(IRQn);
bogdanm 0:9b334a45a8ff 282 }
bogdanm 0:9b334a45a8ff 283
bogdanm 0:9b334a45a8ff 284 /**
bogdanm 0:9b334a45a8ff 285 * @brief Clears the pending bit of an external interrupt.
bogdanm 0:9b334a45a8ff 286 * @param IRQn External interrupt number.
bogdanm 0:9b334a45a8ff 287 * This parameter can be an enumerator of IRQn_Type enumeration
bogdanm 0:9b334a45a8ff 288 * (For the complete STM32 Devices IRQ Channels list, please refer to the appropriate CMSIS device file (stm32f0xxxx.h))
bogdanm 0:9b334a45a8ff 289 * @retval None
bogdanm 0:9b334a45a8ff 290 */
bogdanm 0:9b334a45a8ff 291 void HAL_NVIC_ClearPendingIRQ(IRQn_Type IRQn)
bogdanm 0:9b334a45a8ff 292 {
bogdanm 0:9b334a45a8ff 293 /* Check the parameters */
bogdanm 0:9b334a45a8ff 294 assert_param(IS_NVIC_DEVICE_IRQ(IRQn));
bogdanm 0:9b334a45a8ff 295
bogdanm 0:9b334a45a8ff 296 /* Clear pending interrupt */
bogdanm 0:9b334a45a8ff 297 NVIC_ClearPendingIRQ(IRQn);
bogdanm 0:9b334a45a8ff 298 }
bogdanm 0:9b334a45a8ff 299
bogdanm 0:9b334a45a8ff 300 /**
bogdanm 0:9b334a45a8ff 301 * @brief Configures the SysTick clock source.
bogdanm 0:9b334a45a8ff 302 * @param CLKSource: specifies the SysTick clock source.
bogdanm 0:9b334a45a8ff 303 * This parameter can be one of the following values:
bogdanm 0:9b334a45a8ff 304 * @arg SYSTICK_CLKSOURCE_HCLK_DIV8: AHB clock divided by 8 selected as SysTick clock source.
bogdanm 0:9b334a45a8ff 305 * @arg SYSTICK_CLKSOURCE_HCLK: AHB clock selected as SysTick clock source.
bogdanm 0:9b334a45a8ff 306 * @retval None
bogdanm 0:9b334a45a8ff 307 */
bogdanm 0:9b334a45a8ff 308 void HAL_SYSTICK_CLKSourceConfig(uint32_t CLKSource)
bogdanm 0:9b334a45a8ff 309 {
bogdanm 0:9b334a45a8ff 310 /* Check the parameters */
bogdanm 0:9b334a45a8ff 311 assert_param(IS_SYSTICK_CLK_SOURCE(CLKSource));
bogdanm 0:9b334a45a8ff 312 if (CLKSource == SYSTICK_CLKSOURCE_HCLK)
bogdanm 0:9b334a45a8ff 313 {
bogdanm 0:9b334a45a8ff 314 SysTick->CTRL |= SYSTICK_CLKSOURCE_HCLK;
bogdanm 0:9b334a45a8ff 315 }
bogdanm 0:9b334a45a8ff 316 else
bogdanm 0:9b334a45a8ff 317 {
bogdanm 0:9b334a45a8ff 318 SysTick->CTRL &= ~SYSTICK_CLKSOURCE_HCLK;
bogdanm 0:9b334a45a8ff 319 }
bogdanm 0:9b334a45a8ff 320 }
bogdanm 0:9b334a45a8ff 321
bogdanm 0:9b334a45a8ff 322 /**
bogdanm 0:9b334a45a8ff 323 * @brief This function handles SYSTICK interrupt request.
bogdanm 0:9b334a45a8ff 324 * @retval None
bogdanm 0:9b334a45a8ff 325 */
bogdanm 0:9b334a45a8ff 326 void HAL_SYSTICK_IRQHandler(void)
bogdanm 0:9b334a45a8ff 327 {
bogdanm 0:9b334a45a8ff 328 HAL_SYSTICK_Callback();
bogdanm 0:9b334a45a8ff 329 }
bogdanm 0:9b334a45a8ff 330
bogdanm 0:9b334a45a8ff 331 /**
bogdanm 0:9b334a45a8ff 332 * @brief SYSTICK callback.
bogdanm 0:9b334a45a8ff 333 * @retval None
bogdanm 0:9b334a45a8ff 334 */
bogdanm 0:9b334a45a8ff 335 __weak void HAL_SYSTICK_Callback(void)
bogdanm 0:9b334a45a8ff 336 {
bogdanm 0:9b334a45a8ff 337 /* NOTE : This function Should not be modified, when the callback is needed,
bogdanm 0:9b334a45a8ff 338 the HAL_SYSTICK_Callback could be implemented in the user file
bogdanm 0:9b334a45a8ff 339 */
bogdanm 0:9b334a45a8ff 340 }
bogdanm 0:9b334a45a8ff 341
bogdanm 0:9b334a45a8ff 342 /**
bogdanm 0:9b334a45a8ff 343 * @}
bogdanm 0:9b334a45a8ff 344 */
bogdanm 0:9b334a45a8ff 345
bogdanm 0:9b334a45a8ff 346 /**
bogdanm 0:9b334a45a8ff 347 * @}
bogdanm 0:9b334a45a8ff 348 */
bogdanm 0:9b334a45a8ff 349
bogdanm 0:9b334a45a8ff 350 #endif /* HAL_CORTEX_MODULE_ENABLED */
bogdanm 0:9b334a45a8ff 351 /**
bogdanm 0:9b334a45a8ff 352 * @}
bogdanm 0:9b334a45a8ff 353 */
bogdanm 0:9b334a45a8ff 354
bogdanm 0:9b334a45a8ff 355 /**
bogdanm 0:9b334a45a8ff 356 * @}
bogdanm 0:9b334a45a8ff 357 */
bogdanm 0:9b334a45a8ff 358
bogdanm 0:9b334a45a8ff 359 /************************ (C) COPYRIGHT STMicroelectronics *****END OF FILE****/