mbed library sources
Dependents: frdm_kl05z_gpio_test
Fork of mbed-src by
targets/cmsis/TARGET_STM/TARGET_NUCLEO_F030R8/stm32f0xx_misc.c@323:9e901b0a5aa1, 2014-09-13 (annotated)
- Committer:
- shaoziyang
- Date:
- Sat Sep 13 14:25:46 2014 +0000
- Revision:
- 323:9e901b0a5aa1
- Parent:
- 106:ced8cbb51063
test with CLOCK_SETUP = 0
Who changed what in which revision?
User | Revision | Line number | New contents of line |
---|---|---|---|
mbed_official | 76:aeb1df146756 | 1 | /** |
mbed_official | 76:aeb1df146756 | 2 | ****************************************************************************** |
mbed_official | 76:aeb1df146756 | 3 | * @file stm32f0xx_misc.c |
mbed_official | 76:aeb1df146756 | 4 | * @author MCD Application Team |
mbed_official | 76:aeb1df146756 | 5 | * @version V1.3.0 |
mbed_official | 76:aeb1df146756 | 6 | * @date 16-January-2014 |
mbed_official | 76:aeb1df146756 | 7 | * @brief This file provides all the miscellaneous firmware functions (add-on |
mbed_official | 76:aeb1df146756 | 8 | * to CMSIS functions). |
mbed_official | 76:aeb1df146756 | 9 | ****************************************************************************** |
mbed_official | 76:aeb1df146756 | 10 | * @attention |
mbed_official | 76:aeb1df146756 | 11 | * |
mbed_official | 106:ced8cbb51063 | 12 | * <h2><center>© COPYRIGHT(c) 2014 STMicroelectronics</center></h2> |
mbed_official | 76:aeb1df146756 | 13 | * |
mbed_official | 106:ced8cbb51063 | 14 | * Redistribution and use in source and binary forms, with or without modification, |
mbed_official | 106:ced8cbb51063 | 15 | * are permitted provided that the following conditions are met: |
mbed_official | 106:ced8cbb51063 | 16 | * 1. Redistributions of source code must retain the above copyright notice, |
mbed_official | 106:ced8cbb51063 | 17 | * this list of conditions and the following disclaimer. |
mbed_official | 106:ced8cbb51063 | 18 | * 2. Redistributions in binary form must reproduce the above copyright notice, |
mbed_official | 106:ced8cbb51063 | 19 | * this list of conditions and the following disclaimer in the documentation |
mbed_official | 106:ced8cbb51063 | 20 | * and/or other materials provided with the distribution. |
mbed_official | 106:ced8cbb51063 | 21 | * 3. Neither the name of STMicroelectronics nor the names of its contributors |
mbed_official | 106:ced8cbb51063 | 22 | * may be used to endorse or promote products derived from this software |
mbed_official | 106:ced8cbb51063 | 23 | * without specific prior written permission. |
mbed_official | 76:aeb1df146756 | 24 | * |
mbed_official | 106:ced8cbb51063 | 25 | * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" |
mbed_official | 106:ced8cbb51063 | 26 | * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE |
mbed_official | 106:ced8cbb51063 | 27 | * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE |
mbed_official | 106:ced8cbb51063 | 28 | * DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE |
mbed_official | 106:ced8cbb51063 | 29 | * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL |
mbed_official | 106:ced8cbb51063 | 30 | * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR |
mbed_official | 106:ced8cbb51063 | 31 | * SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER |
mbed_official | 106:ced8cbb51063 | 32 | * CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, |
mbed_official | 106:ced8cbb51063 | 33 | * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE |
mbed_official | 106:ced8cbb51063 | 34 | * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. |
mbed_official | 76:aeb1df146756 | 35 | * |
mbed_official | 76:aeb1df146756 | 36 | ****************************************************************************** |
mbed_official | 76:aeb1df146756 | 37 | */ |
mbed_official | 76:aeb1df146756 | 38 | |
mbed_official | 76:aeb1df146756 | 39 | /* Includes ------------------------------------------------------------------*/ |
mbed_official | 76:aeb1df146756 | 40 | #include "stm32f0xx_misc.h" |
mbed_official | 76:aeb1df146756 | 41 | |
mbed_official | 76:aeb1df146756 | 42 | /** @addtogroup STM32F0xx_StdPeriph_Driver |
mbed_official | 76:aeb1df146756 | 43 | * @{ |
mbed_official | 76:aeb1df146756 | 44 | */ |
mbed_official | 76:aeb1df146756 | 45 | |
mbed_official | 76:aeb1df146756 | 46 | /** @defgroup MISC |
mbed_official | 76:aeb1df146756 | 47 | * @brief MISC driver modules |
mbed_official | 76:aeb1df146756 | 48 | * @{ |
mbed_official | 76:aeb1df146756 | 49 | */ |
mbed_official | 76:aeb1df146756 | 50 | |
mbed_official | 76:aeb1df146756 | 51 | /* Private typedef -----------------------------------------------------------*/ |
mbed_official | 76:aeb1df146756 | 52 | /* Private define ------------------------------------------------------------*/ |
mbed_official | 76:aeb1df146756 | 53 | /* Private macro -------------------------------------------------------------*/ |
mbed_official | 76:aeb1df146756 | 54 | /* Private variables ---------------------------------------------------------*/ |
mbed_official | 76:aeb1df146756 | 55 | /* Private function prototypes -----------------------------------------------*/ |
mbed_official | 76:aeb1df146756 | 56 | /* Private functions ---------------------------------------------------------*/ |
mbed_official | 76:aeb1df146756 | 57 | |
mbed_official | 76:aeb1df146756 | 58 | /** @defgroup MISC_Private_Functions |
mbed_official | 76:aeb1df146756 | 59 | * @{ |
mbed_official | 76:aeb1df146756 | 60 | */ |
mbed_official | 76:aeb1df146756 | 61 | /** |
mbed_official | 76:aeb1df146756 | 62 | * |
mbed_official | 76:aeb1df146756 | 63 | @verbatim |
mbed_official | 76:aeb1df146756 | 64 | ******************************************************************************* |
mbed_official | 76:aeb1df146756 | 65 | ##### Interrupts configuration functions ##### |
mbed_official | 76:aeb1df146756 | 66 | ******************************************************************************* |
mbed_official | 76:aeb1df146756 | 67 | [..] This section provide functions allowing to configure the NVIC interrupts |
mbed_official | 76:aeb1df146756 | 68 | (IRQ). The Cortex-M0 exceptions are managed by CMSIS functions. |
mbed_official | 76:aeb1df146756 | 69 | (#) Enable and Configure the priority of the selected IRQ Channels. |
mbed_official | 76:aeb1df146756 | 70 | The priority can be 0..3. |
mbed_official | 76:aeb1df146756 | 71 | |
mbed_official | 76:aeb1df146756 | 72 | -@- Lower priority values gives higher priority. |
mbed_official | 76:aeb1df146756 | 73 | -@- Priority Order: |
mbed_official | 76:aeb1df146756 | 74 | (#@) Lowest priority. |
mbed_official | 76:aeb1df146756 | 75 | (#@) Lowest hardware priority (IRQn position). |
mbed_official | 76:aeb1df146756 | 76 | |
mbed_official | 76:aeb1df146756 | 77 | @endverbatim |
mbed_official | 76:aeb1df146756 | 78 | */ |
mbed_official | 76:aeb1df146756 | 79 | |
mbed_official | 76:aeb1df146756 | 80 | /** |
mbed_official | 76:aeb1df146756 | 81 | * @brief Initializes the NVIC peripheral according to the specified |
mbed_official | 76:aeb1df146756 | 82 | * parameters in the NVIC_InitStruct. |
mbed_official | 76:aeb1df146756 | 83 | * @param NVIC_InitStruct: pointer to a NVIC_InitTypeDef structure that contains |
mbed_official | 76:aeb1df146756 | 84 | * the configuration information for the specified NVIC peripheral. |
mbed_official | 76:aeb1df146756 | 85 | * @retval None |
mbed_official | 76:aeb1df146756 | 86 | */ |
mbed_official | 76:aeb1df146756 | 87 | void NVIC_Init(NVIC_InitTypeDef* NVIC_InitStruct) |
mbed_official | 76:aeb1df146756 | 88 | { |
mbed_official | 76:aeb1df146756 | 89 | uint32_t tmppriority = 0x00; |
mbed_official | 76:aeb1df146756 | 90 | |
mbed_official | 76:aeb1df146756 | 91 | /* Check the parameters */ |
mbed_official | 76:aeb1df146756 | 92 | assert_param(IS_FUNCTIONAL_STATE(NVIC_InitStruct->NVIC_IRQChannelCmd)); |
mbed_official | 76:aeb1df146756 | 93 | assert_param(IS_NVIC_PRIORITY(NVIC_InitStruct->NVIC_IRQChannelPriority)); |
mbed_official | 76:aeb1df146756 | 94 | |
mbed_official | 76:aeb1df146756 | 95 | if (NVIC_InitStruct->NVIC_IRQChannelCmd != DISABLE) |
mbed_official | 76:aeb1df146756 | 96 | { |
mbed_official | 76:aeb1df146756 | 97 | /* Compute the Corresponding IRQ Priority --------------------------------*/ |
mbed_official | 76:aeb1df146756 | 98 | tmppriority = NVIC->IP[NVIC_InitStruct->NVIC_IRQChannel >> 0x02]; |
mbed_official | 76:aeb1df146756 | 99 | tmppriority &= (uint32_t)(~(((uint32_t)0xFF) << ((NVIC_InitStruct->NVIC_IRQChannel & 0x03) * 8))); |
mbed_official | 76:aeb1df146756 | 100 | tmppriority |= (uint32_t)((((uint32_t)NVIC_InitStruct->NVIC_IRQChannelPriority << 6) & 0xFF) << ((NVIC_InitStruct->NVIC_IRQChannel & 0x03) * 8)); |
mbed_official | 76:aeb1df146756 | 101 | |
mbed_official | 76:aeb1df146756 | 102 | NVIC->IP[NVIC_InitStruct->NVIC_IRQChannel >> 0x02] = tmppriority; |
mbed_official | 76:aeb1df146756 | 103 | |
mbed_official | 76:aeb1df146756 | 104 | /* Enable the Selected IRQ Channels --------------------------------------*/ |
mbed_official | 76:aeb1df146756 | 105 | NVIC->ISER[0] = (uint32_t)0x01 << (NVIC_InitStruct->NVIC_IRQChannel & (uint8_t)0x1F); |
mbed_official | 76:aeb1df146756 | 106 | } |
mbed_official | 76:aeb1df146756 | 107 | else |
mbed_official | 76:aeb1df146756 | 108 | { |
mbed_official | 76:aeb1df146756 | 109 | /* Disable the Selected IRQ Channels -------------------------------------*/ |
mbed_official | 76:aeb1df146756 | 110 | NVIC->ICER[0] = (uint32_t)0x01 << (NVIC_InitStruct->NVIC_IRQChannel & (uint8_t)0x1F); |
mbed_official | 76:aeb1df146756 | 111 | } |
mbed_official | 76:aeb1df146756 | 112 | } |
mbed_official | 76:aeb1df146756 | 113 | |
mbed_official | 76:aeb1df146756 | 114 | /** |
mbed_official | 76:aeb1df146756 | 115 | * @brief Selects the condition for the system to enter low power mode. |
mbed_official | 76:aeb1df146756 | 116 | * @param LowPowerMode: Specifies the new mode for the system to enter low power mode. |
mbed_official | 76:aeb1df146756 | 117 | * This parameter can be one of the following values: |
mbed_official | 76:aeb1df146756 | 118 | * @arg NVIC_LP_SEVONPEND: Low Power SEV on Pend. |
mbed_official | 76:aeb1df146756 | 119 | * @arg NVIC_LP_SLEEPDEEP: Low Power DEEPSLEEP request. |
mbed_official | 76:aeb1df146756 | 120 | * @arg NVIC_LP_SLEEPONEXIT: Low Power Sleep on Exit. |
mbed_official | 76:aeb1df146756 | 121 | * @param NewState: new state of LP condition. |
mbed_official | 76:aeb1df146756 | 122 | * This parameter can be: ENABLE or DISABLE. |
mbed_official | 76:aeb1df146756 | 123 | * @retval None |
mbed_official | 76:aeb1df146756 | 124 | */ |
mbed_official | 76:aeb1df146756 | 125 | void NVIC_SystemLPConfig(uint8_t LowPowerMode, FunctionalState NewState) |
mbed_official | 76:aeb1df146756 | 126 | { |
mbed_official | 76:aeb1df146756 | 127 | /* Check the parameters */ |
mbed_official | 76:aeb1df146756 | 128 | assert_param(IS_NVIC_LP(LowPowerMode)); |
mbed_official | 76:aeb1df146756 | 129 | |
mbed_official | 76:aeb1df146756 | 130 | assert_param(IS_FUNCTIONAL_STATE(NewState)); |
mbed_official | 76:aeb1df146756 | 131 | |
mbed_official | 76:aeb1df146756 | 132 | if (NewState != DISABLE) |
mbed_official | 76:aeb1df146756 | 133 | { |
mbed_official | 76:aeb1df146756 | 134 | SCB->SCR |= LowPowerMode; |
mbed_official | 76:aeb1df146756 | 135 | } |
mbed_official | 76:aeb1df146756 | 136 | else |
mbed_official | 76:aeb1df146756 | 137 | { |
mbed_official | 76:aeb1df146756 | 138 | SCB->SCR &= (uint32_t)(~(uint32_t)LowPowerMode); |
mbed_official | 76:aeb1df146756 | 139 | } |
mbed_official | 76:aeb1df146756 | 140 | } |
mbed_official | 76:aeb1df146756 | 141 | |
mbed_official | 76:aeb1df146756 | 142 | /** |
mbed_official | 76:aeb1df146756 | 143 | * @brief Configures the SysTick clock source. |
mbed_official | 76:aeb1df146756 | 144 | * @param SysTick_CLKSource: specifies the SysTick clock source. |
mbed_official | 76:aeb1df146756 | 145 | * This parameter can be one of the following values: |
mbed_official | 76:aeb1df146756 | 146 | * @arg SysTick_CLKSource_HCLK_Div8: AHB clock divided by 8 selected as SysTick clock source. |
mbed_official | 76:aeb1df146756 | 147 | * @arg SysTick_CLKSource_HCLK: AHB clock selected as SysTick clock source. |
mbed_official | 76:aeb1df146756 | 148 | * @retval None |
mbed_official | 76:aeb1df146756 | 149 | */ |
mbed_official | 76:aeb1df146756 | 150 | void SysTick_CLKSourceConfig(uint32_t SysTick_CLKSource) |
mbed_official | 76:aeb1df146756 | 151 | { |
mbed_official | 76:aeb1df146756 | 152 | /* Check the parameters */ |
mbed_official | 76:aeb1df146756 | 153 | assert_param(IS_SYSTICK_CLK_SOURCE(SysTick_CLKSource)); |
mbed_official | 76:aeb1df146756 | 154 | |
mbed_official | 76:aeb1df146756 | 155 | if (SysTick_CLKSource == SysTick_CLKSource_HCLK) |
mbed_official | 76:aeb1df146756 | 156 | { |
mbed_official | 76:aeb1df146756 | 157 | SysTick->CTRL |= SysTick_CLKSource_HCLK; |
mbed_official | 76:aeb1df146756 | 158 | } |
mbed_official | 76:aeb1df146756 | 159 | else |
mbed_official | 76:aeb1df146756 | 160 | { |
mbed_official | 76:aeb1df146756 | 161 | SysTick->CTRL &= SysTick_CLKSource_HCLK_Div8; |
mbed_official | 76:aeb1df146756 | 162 | } |
mbed_official | 76:aeb1df146756 | 163 | } |
mbed_official | 76:aeb1df146756 | 164 | |
mbed_official | 76:aeb1df146756 | 165 | /** |
mbed_official | 76:aeb1df146756 | 166 | * @} |
mbed_official | 76:aeb1df146756 | 167 | */ |
mbed_official | 76:aeb1df146756 | 168 | |
mbed_official | 76:aeb1df146756 | 169 | /** |
mbed_official | 76:aeb1df146756 | 170 | * @} |
mbed_official | 76:aeb1df146756 | 171 | */ |
mbed_official | 76:aeb1df146756 | 172 | |
mbed_official | 76:aeb1df146756 | 173 | /** |
mbed_official | 76:aeb1df146756 | 174 | * @} |
mbed_official | 76:aeb1df146756 | 175 | */ |
mbed_official | 76:aeb1df146756 | 176 | |
mbed_official | 76:aeb1df146756 | 177 | /************************ (C) COPYRIGHT STMicroelectronics *****END OF FILE****/ |