shao ziyang / mbed-src-kl05

mbed library sources

Dependents:   frdm_kl05z_gpio_test

Fork of mbed-src by mbed official

targets/cmsis/TARGET_STM/TARGET_DISCO_F100RB/misc.c@323:9e901b0a5aa1, 2014-09-13 (annotated)

Committer:
shaoziyang
Date:
Sat Sep 13 14:25:46 2014 +0000
Revision:
323:9e901b0a5aa1
Parent:
126:549ba18ddd81 
test with CLOCK_SETUP = 0

Who changed what in which revision?

UserRevisionLine numberNew contents of line
mbed_official 126:549ba18ddd81 1 /**
mbed_official 126:549ba18ddd81 2 ******************************************************************************
mbed_official 126:549ba18ddd81 3 * @file misc.c
mbed_official 126:549ba18ddd81 4 * @author MCD Application Team
mbed_official 126:549ba18ddd81 5 * @version V3.6.1
mbed_official 126:549ba18ddd81 6 * @date 05-March-2012
mbed_official 126:549ba18ddd81 7 * @brief This file provides all the miscellaneous firmware functions (add-on
mbed_official 126:549ba18ddd81 8 * to CMSIS functions).
mbed_official 126:549ba18ddd81 9 *******************************************************************************
mbed_official 126:549ba18ddd81 10 * Copyright (c) 2014, STMicroelectronics
mbed_official 126:549ba18ddd81 11 * All rights reserved.
mbed_official 126:549ba18ddd81 12 *
mbed_official 126:549ba18ddd81 13 * Redistribution and use in source and binary forms, with or without
mbed_official 126:549ba18ddd81 14 * modification, are permitted provided that the following conditions are met:
mbed_official 126:549ba18ddd81 15 *
mbed_official 126:549ba18ddd81 16 * 1. Redistributions of source code must retain the above copyright notice,
mbed_official 126:549ba18ddd81 17 * this list of conditions and the following disclaimer.
mbed_official 126:549ba18ddd81 18 * 2. Redistributions in binary form must reproduce the above copyright notice,
mbed_official 126:549ba18ddd81 19 * this list of conditions and the following disclaimer in the documentation
mbed_official 126:549ba18ddd81 20 * and/or other materials provided with the distribution.
mbed_official 126:549ba18ddd81 21 * 3. Neither the name of STMicroelectronics nor the names of its contributors
mbed_official 126:549ba18ddd81 22 * may be used to endorse or promote products derived from this software
mbed_official 126:549ba18ddd81 23 * without specific prior written permission.
mbed_official 126:549ba18ddd81 24 *
mbed_official 126:549ba18ddd81 25 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
mbed_official 126:549ba18ddd81 26 * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
mbed_official 126:549ba18ddd81 27 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
mbed_official 126:549ba18ddd81 28 * DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE
mbed_official 126:549ba18ddd81 29 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
mbed_official 126:549ba18ddd81 30 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
mbed_official 126:549ba18ddd81 31 * SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
mbed_official 126:549ba18ddd81 32 * CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
mbed_official 126:549ba18ddd81 33 * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
mbed_official 126:549ba18ddd81 34 * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
mbed_official 126:549ba18ddd81 35 *******************************************************************************
mbed_official 126:549ba18ddd81 36 */
mbed_official 126:549ba18ddd81 37
mbed_official 126:549ba18ddd81 38 /* Includes ------------------------------------------------------------------*/
mbed_official 126:549ba18ddd81 39 #include "misc.h"
mbed_official 126:549ba18ddd81 40
mbed_official 126:549ba18ddd81 41 /** @addtogroup STM32F10x_StdPeriph_Driver
mbed_official 126:549ba18ddd81 42 * @{
mbed_official 126:549ba18ddd81 43 */
mbed_official 126:549ba18ddd81 44
mbed_official 126:549ba18ddd81 45 /** @defgroup MISC
mbed_official 126:549ba18ddd81 46 * @brief MISC driver modules
mbed_official 126:549ba18ddd81 47 * @{
mbed_official 126:549ba18ddd81 48 */
mbed_official 126:549ba18ddd81 49
mbed_official 126:549ba18ddd81 50 /** @defgroup MISC_Private_TypesDefinitions
mbed_official 126:549ba18ddd81 51 * @{
mbed_official 126:549ba18ddd81 52 */
mbed_official 126:549ba18ddd81 53
mbed_official 126:549ba18ddd81 54 /**
mbed_official 126:549ba18ddd81 55 * @}
mbed_official 126:549ba18ddd81 56 */
mbed_official 126:549ba18ddd81 57
mbed_official 126:549ba18ddd81 58 /** @defgroup MISC_Private_Defines
mbed_official 126:549ba18ddd81 59 * @{
mbed_official 126:549ba18ddd81 60 */
mbed_official 126:549ba18ddd81 61
mbed_official 126:549ba18ddd81 62 #define AIRCR_VECTKEY_MASK ((uint32_t)0x05FA0000)
mbed_official 126:549ba18ddd81 63 /**
mbed_official 126:549ba18ddd81 64 * @}
mbed_official 126:549ba18ddd81 65 */
mbed_official 126:549ba18ddd81 66
mbed_official 126:549ba18ddd81 67 /** @defgroup MISC_Private_Macros
mbed_official 126:549ba18ddd81 68 * @{
mbed_official 126:549ba18ddd81 69 */
mbed_official 126:549ba18ddd81 70
mbed_official 126:549ba18ddd81 71 /**
mbed_official 126:549ba18ddd81 72 * @}
mbed_official 126:549ba18ddd81 73 */
mbed_official 126:549ba18ddd81 74
mbed_official 126:549ba18ddd81 75 /** @defgroup MISC_Private_Variables
mbed_official 126:549ba18ddd81 76 * @{
mbed_official 126:549ba18ddd81 77 */
mbed_official 126:549ba18ddd81 78
mbed_official 126:549ba18ddd81 79 /**
mbed_official 126:549ba18ddd81 80 * @}
mbed_official 126:549ba18ddd81 81 */
mbed_official 126:549ba18ddd81 82
mbed_official 126:549ba18ddd81 83 /** @defgroup MISC_Private_FunctionPrototypes
mbed_official 126:549ba18ddd81 84 * @{
mbed_official 126:549ba18ddd81 85 */
mbed_official 126:549ba18ddd81 86
mbed_official 126:549ba18ddd81 87 /**
mbed_official 126:549ba18ddd81 88 * @}
mbed_official 126:549ba18ddd81 89 */
mbed_official 126:549ba18ddd81 90
mbed_official 126:549ba18ddd81 91 /** @defgroup MISC_Private_Functions
mbed_official 126:549ba18ddd81 92 * @{
mbed_official 126:549ba18ddd81 93 */
mbed_official 126:549ba18ddd81 94
mbed_official 126:549ba18ddd81 95 /**
mbed_official 126:549ba18ddd81 96 * @brief Configures the priority grouping: pre-emption priority and subpriority.
mbed_official 126:549ba18ddd81 97 * @param NVIC_PriorityGroup: specifies the priority grouping bits length.
mbed_official 126:549ba18ddd81 98 * This parameter can be one of the following values:
mbed_official 126:549ba18ddd81 99 * @arg NVIC_PriorityGroup_0: 0 bits for pre-emption priority
mbed_official 126:549ba18ddd81 100 * 4 bits for subpriority
mbed_official 126:549ba18ddd81 101 * @arg NVIC_PriorityGroup_1: 1 bits for pre-emption priority
mbed_official 126:549ba18ddd81 102 * 3 bits for subpriority
mbed_official 126:549ba18ddd81 103 * @arg NVIC_PriorityGroup_2: 2 bits for pre-emption priority
mbed_official 126:549ba18ddd81 104 * 2 bits for subpriority
mbed_official 126:549ba18ddd81 105 * @arg NVIC_PriorityGroup_3: 3 bits for pre-emption priority
mbed_official 126:549ba18ddd81 106 * 1 bits for subpriority
mbed_official 126:549ba18ddd81 107 * @arg NVIC_PriorityGroup_4: 4 bits for pre-emption priority
mbed_official 126:549ba18ddd81 108 * 0 bits for subpriority
mbed_official 126:549ba18ddd81 109 * @retval None
mbed_official 126:549ba18ddd81 110 */
mbed_official 126:549ba18ddd81 111 void NVIC_PriorityGroupConfig(uint32_t NVIC_PriorityGroup)
mbed_official 126:549ba18ddd81 112 {
mbed_official 126:549ba18ddd81 113 /* Check the parameters */
mbed_official 126:549ba18ddd81 114 assert_param(IS_NVIC_PRIORITY_GROUP(NVIC_PriorityGroup));
mbed_official 126:549ba18ddd81 115
mbed_official 126:549ba18ddd81 116 /* Set the PRIGROUP[10:8] bits according to NVIC_PriorityGroup value */
mbed_official 126:549ba18ddd81 117 SCB->AIRCR = AIRCR_VECTKEY_MASK | NVIC_PriorityGroup;
mbed_official 126:549ba18ddd81 118 }
mbed_official 126:549ba18ddd81 119
mbed_official 126:549ba18ddd81 120 /**
mbed_official 126:549ba18ddd81 121 * @brief Initializes the NVIC peripheral according to the specified
mbed_official 126:549ba18ddd81 122 * parameters in the NVIC_InitStruct.
mbed_official 126:549ba18ddd81 123 * @param NVIC_InitStruct: pointer to a NVIC_InitTypeDef structure that contains
mbed_official 126:549ba18ddd81 124 * the configuration information for the specified NVIC peripheral.
mbed_official 126:549ba18ddd81 125 * @retval None
mbed_official 126:549ba18ddd81 126 */
mbed_official 126:549ba18ddd81 127 void NVIC_Init(NVIC_InitTypeDef* NVIC_InitStruct)
mbed_official 126:549ba18ddd81 128 {
mbed_official 126:549ba18ddd81 129 uint32_t tmppriority = 0x00, tmppre = 0x00, tmpsub = 0x0F;
mbed_official 126:549ba18ddd81 130
mbed_official 126:549ba18ddd81 131 /* Check the parameters */
mbed_official 126:549ba18ddd81 132 assert_param(IS_FUNCTIONAL_STATE(NVIC_InitStruct->NVIC_IRQChannelCmd));
mbed_official 126:549ba18ddd81 133 assert_param(IS_NVIC_PREEMPTION_PRIORITY(NVIC_InitStruct->NVIC_IRQChannelPreemptionPriority));
mbed_official 126:549ba18ddd81 134 assert_param(IS_NVIC_SUB_PRIORITY(NVIC_InitStruct->NVIC_IRQChannelSubPriority));
mbed_official 126:549ba18ddd81 135
mbed_official 126:549ba18ddd81 136 if (NVIC_InitStruct->NVIC_IRQChannelCmd != DISABLE)
mbed_official 126:549ba18ddd81 137 {
mbed_official 126:549ba18ddd81 138 /* Compute the Corresponding IRQ Priority --------------------------------*/
mbed_official 126:549ba18ddd81 139 tmppriority = (0x700 - ((SCB->AIRCR) & (uint32_t)0x700))>> 0x08;
mbed_official 126:549ba18ddd81 140 tmppre = (0x4 - tmppriority);
mbed_official 126:549ba18ddd81 141 tmpsub = tmpsub >> tmppriority;
mbed_official 126:549ba18ddd81 142
mbed_official 126:549ba18ddd81 143 tmppriority = (uint32_t)NVIC_InitStruct->NVIC_IRQChannelPreemptionPriority << tmppre;
mbed_official 126:549ba18ddd81 144 tmppriority |= NVIC_InitStruct->NVIC_IRQChannelSubPriority & tmpsub;
mbed_official 126:549ba18ddd81 145 tmppriority = tmppriority << 0x04;
mbed_official 126:549ba18ddd81 146
mbed_official 126:549ba18ddd81 147 NVIC->IP[NVIC_InitStruct->NVIC_IRQChannel] = tmppriority;
mbed_official 126:549ba18ddd81 148
mbed_official 126:549ba18ddd81 149 /* Enable the Selected IRQ Channels --------------------------------------*/
mbed_official 126:549ba18ddd81 150 NVIC->ISER[NVIC_InitStruct->NVIC_IRQChannel >> 0x05] =
mbed_official 126:549ba18ddd81 151 (uint32_t)0x01 << (NVIC_InitStruct->NVIC_IRQChannel & (uint8_t)0x1F);
mbed_official 126:549ba18ddd81 152 }
mbed_official 126:549ba18ddd81 153 else
mbed_official 126:549ba18ddd81 154 {
mbed_official 126:549ba18ddd81 155 /* Disable the Selected IRQ Channels -------------------------------------*/
mbed_official 126:549ba18ddd81 156 NVIC->ICER[NVIC_InitStruct->NVIC_IRQChannel >> 0x05] =
mbed_official 126:549ba18ddd81 157 (uint32_t)0x01 << (NVIC_InitStruct->NVIC_IRQChannel & (uint8_t)0x1F);
mbed_official 126:549ba18ddd81 158 }
mbed_official 126:549ba18ddd81 159 }
mbed_official 126:549ba18ddd81 160
mbed_official 126:549ba18ddd81 161 /**
mbed_official 126:549ba18ddd81 162 * @brief Sets the vector table location and Offset.
mbed_official 126:549ba18ddd81 163 * @param NVIC_VectTab: specifies if the vector table is in RAM or FLASH memory.
mbed_official 126:549ba18ddd81 164 * This parameter can be one of the following values:
mbed_official 126:549ba18ddd81 165 * @arg NVIC_VectTab_RAM
mbed_official 126:549ba18ddd81 166 * @arg NVIC_VectTab_FLASH
mbed_official 126:549ba18ddd81 167 * @param Offset: Vector Table base offset field. This value must be a multiple
mbed_official 126:549ba18ddd81 168 * of 0x200.
mbed_official 126:549ba18ddd81 169 * @retval None
mbed_official 126:549ba18ddd81 170 */
mbed_official 126:549ba18ddd81 171 void NVIC_SetVectorTable(uint32_t NVIC_VectTab, uint32_t Offset)
mbed_official 126:549ba18ddd81 172 {
mbed_official 126:549ba18ddd81 173 /* Check the parameters */
mbed_official 126:549ba18ddd81 174 assert_param(IS_NVIC_VECTTAB(NVIC_VectTab));
mbed_official 126:549ba18ddd81 175 assert_param(IS_NVIC_OFFSET(Offset));
mbed_official 126:549ba18ddd81 176
mbed_official 126:549ba18ddd81 177 SCB->VTOR = NVIC_VectTab | (Offset & (uint32_t)0x1FFFFF80);
mbed_official 126:549ba18ddd81 178 }
mbed_official 126:549ba18ddd81 179
mbed_official 126:549ba18ddd81 180 /**
mbed_official 126:549ba18ddd81 181 * @brief Selects the condition for the system to enter low power mode.
mbed_official 126:549ba18ddd81 182 * @param LowPowerMode: Specifies the new mode for the system to enter low power mode.
mbed_official 126:549ba18ddd81 183 * This parameter can be one of the following values:
mbed_official 126:549ba18ddd81 184 * @arg NVIC_LP_SEVONPEND
mbed_official 126:549ba18ddd81 185 * @arg NVIC_LP_SLEEPDEEP
mbed_official 126:549ba18ddd81 186 * @arg NVIC_LP_SLEEPONEXIT
mbed_official 126:549ba18ddd81 187 * @param NewState: new state of LP condition. This parameter can be: ENABLE or DISABLE.
mbed_official 126:549ba18ddd81 188 * @retval None
mbed_official 126:549ba18ddd81 189 */
mbed_official 126:549ba18ddd81 190 void NVIC_SystemLPConfig(uint8_t LowPowerMode, FunctionalState NewState)
mbed_official 126:549ba18ddd81 191 {
mbed_official 126:549ba18ddd81 192 /* Check the parameters */
mbed_official 126:549ba18ddd81 193 assert_param(IS_NVIC_LP(LowPowerMode));
mbed_official 126:549ba18ddd81 194 assert_param(IS_FUNCTIONAL_STATE(NewState));
mbed_official 126:549ba18ddd81 195
mbed_official 126:549ba18ddd81 196 if (NewState != DISABLE)
mbed_official 126:549ba18ddd81 197 {
mbed_official 126:549ba18ddd81 198 SCB->SCR |= LowPowerMode;
mbed_official 126:549ba18ddd81 199 }
mbed_official 126:549ba18ddd81 200 else
mbed_official 126:549ba18ddd81 201 {
mbed_official 126:549ba18ddd81 202 SCB->SCR &= (uint32_t)(~(uint32_t)LowPowerMode);
mbed_official 126:549ba18ddd81 203 }
mbed_official 126:549ba18ddd81 204 }
mbed_official 126:549ba18ddd81 205
mbed_official 126:549ba18ddd81 206 /**
mbed_official 126:549ba18ddd81 207 * @brief Configures the SysTick clock source.
mbed_official 126:549ba18ddd81 208 * @param SysTick_CLKSource: specifies the SysTick clock source.
mbed_official 126:549ba18ddd81 209 * This parameter can be one of the following values:
mbed_official 126:549ba18ddd81 210 * @arg SysTick_CLKSource_HCLK_Div8: AHB clock divided by 8 selected as SysTick clock source.
mbed_official 126:549ba18ddd81 211 * @arg SysTick_CLKSource_HCLK: AHB clock selected as SysTick clock source.
mbed_official 126:549ba18ddd81 212 * @retval None
mbed_official 126:549ba18ddd81 213 */
mbed_official 126:549ba18ddd81 214 void SysTick_CLKSourceConfig(uint32_t SysTick_CLKSource)
mbed_official 126:549ba18ddd81 215 {
mbed_official 126:549ba18ddd81 216 /* Check the parameters */
mbed_official 126:549ba18ddd81 217 assert_param(IS_SYSTICK_CLK_SOURCE(SysTick_CLKSource));
mbed_official 126:549ba18ddd81 218 if (SysTick_CLKSource == SysTick_CLKSource_HCLK)
mbed_official 126:549ba18ddd81 219 {
mbed_official 126:549ba18ddd81 220 SysTick->CTRL |= SysTick_CLKSource_HCLK;
mbed_official 126:549ba18ddd81 221 }
mbed_official 126:549ba18ddd81 222 else
mbed_official 126:549ba18ddd81 223 {
mbed_official 126:549ba18ddd81 224 SysTick->CTRL &= SysTick_CLKSource_HCLK_Div8;
mbed_official 126:549ba18ddd81 225 }
mbed_official 126:549ba18ddd81 226 }
mbed_official 126:549ba18ddd81 227
mbed_official 126:549ba18ddd81 228 /**
mbed_official 126:549ba18ddd81 229 * @}
mbed_official 126:549ba18ddd81 230 */
mbed_official 126:549ba18ddd81 231
mbed_official 126:549ba18ddd81 232 /**
mbed_official 126:549ba18ddd81 233 * @}
mbed_official 126:549ba18ddd81 234 */
mbed_official 126:549ba18ddd81 235
mbed_official 126:549ba18ddd81 236 /**
mbed_official 126:549ba18ddd81 237 * @}
mbed_official 126:549ba18ddd81 238 */
mbed_official 126:549ba18ddd81 239
mbed_official 126:549ba18ddd81 240 /************************ (C) COPYRIGHT STMicroelectronics *****END OF FILE****/