Peter Drescher / mbed-F401

mbed library with additional peripherals for ST F401 board

Fork of mbed-src by mbed official

This mbed LIB has additional peripherals for ST F401 board

  • UART2 : PA_3 rx, PA_2 tx
  • UART3 : PC_7 rx, PC_6 tx
  • I2C2 : PB_3 SDA, PB_10 SCL
  • I2C3 : PB_4 SDA, PA_8 SCL

targets/cmsis/TARGET_STM/TARGET_NUCLEO_F030R8/stm32f0xx_syscfg.c@76:aeb1df146756, 2014-01-27 (annotated)

Committer:
mbed_official
Date:
Mon Jan 27 14:30:07 2014 +0000
Revision:
76:aeb1df146756
Child:
106:ced8cbb51063
Synchronized with git revision a31ec9c5f7bcb5c8a1b2eced103f6a1dfa921abd



Full URL: https://github.com/mbedmicro/mbed/commit/a31ec9c5f7bcb5c8a1b2eced103f6a1dfa921abd/



Add NUCLEO_L152RE

Who changed what in which revision?

UserRevisionLine numberNew contents of line
mbed_official 76:aeb1df146756 1 /**
mbed_official 76:aeb1df146756 2 ******************************************************************************
mbed_official 76:aeb1df146756 3 * @file stm32f0xx_syscfg.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 firmware functions to manage the following
mbed_official 76:aeb1df146756 8 * functionalities of the SYSCFG peripheral:
mbed_official 76:aeb1df146756 9 * + Remapping the memory mapped at 0x00000000
mbed_official 76:aeb1df146756 10 * + Remapping the DMA channels
mbed_official 76:aeb1df146756 11 * + Enabling I2C fast mode plus driving capability for I2C pins
mbed_official 76:aeb1df146756 12 * + Configuring the EXTI lines connection to the GPIO port
mbed_official 76:aeb1df146756 13 * + Configuring the CFGR2 features (Connecting some internal signal
mbed_official 76:aeb1df146756 14 * to the break input of TIM1)
mbed_official 76:aeb1df146756 15 *
mbed_official 76:aeb1df146756 16 * @verbatim
mbed_official 76:aeb1df146756 17 ===============================================================================
mbed_official 76:aeb1df146756 18 ##### How to use this driver #####
mbed_official 76:aeb1df146756 19 ===============================================================================
mbed_official 76:aeb1df146756 20 [..]
mbed_official 76:aeb1df146756 21 The SYSCFG registers can be accessed only when the SYSCFG
mbed_official 76:aeb1df146756 22 interface APB clock is enabled.
mbed_official 76:aeb1df146756 23 To enable SYSCFG APB clock use:
mbed_official 76:aeb1df146756 24 RCC_APBPeriphClockCmd(RCC_APBPeriph_SYSCFG, ENABLE).
mbed_official 76:aeb1df146756 25 * @endverbatim
mbed_official 76:aeb1df146756 26 *
mbed_official 76:aeb1df146756 27 ******************************************************************************
mbed_official 76:aeb1df146756 28 * @attention
mbed_official 76:aeb1df146756 29 *
mbed_official 76:aeb1df146756 30 * <h2><center>&copy; COPYRIGHT 2014 STMicroelectronics</center></h2>
mbed_official 76:aeb1df146756 31 *
mbed_official 76:aeb1df146756 32 * Licensed under MCD-ST Liberty SW License Agreement V2, (the "License");
mbed_official 76:aeb1df146756 33 * You may not use this file except in compliance with the License.
mbed_official 76:aeb1df146756 34 * You may obtain a copy of the License at:
mbed_official 76:aeb1df146756 35 *
mbed_official 76:aeb1df146756 36 * http://www.st.com/software_license_agreement_liberty_v2
mbed_official 76:aeb1df146756 37 *
mbed_official 76:aeb1df146756 38 * Unless required by applicable law or agreed to in writing, software
mbed_official 76:aeb1df146756 39 * distributed under the License is distributed on an "AS IS" BASIS,
mbed_official 76:aeb1df146756 40 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
mbed_official 76:aeb1df146756 41 * See the License for the specific language governing permissions and
mbed_official 76:aeb1df146756 42 * limitations under the License.
mbed_official 76:aeb1df146756 43 *
mbed_official 76:aeb1df146756 44 ******************************************************************************
mbed_official 76:aeb1df146756 45 */
mbed_official 76:aeb1df146756 46
mbed_official 76:aeb1df146756 47 /* Includes ------------------------------------------------------------------*/
mbed_official 76:aeb1df146756 48 #include "stm32f0xx_syscfg.h"
mbed_official 76:aeb1df146756 49
mbed_official 76:aeb1df146756 50 /** @addtogroup STM32F0xx_StdPeriph_Driver
mbed_official 76:aeb1df146756 51 * @{
mbed_official 76:aeb1df146756 52 */
mbed_official 76:aeb1df146756 53
mbed_official 76:aeb1df146756 54 /** @defgroup SYSCFG
mbed_official 76:aeb1df146756 55 * @brief SYSCFG driver modules
mbed_official 76:aeb1df146756 56 * @{
mbed_official 76:aeb1df146756 57 */
mbed_official 76:aeb1df146756 58
mbed_official 76:aeb1df146756 59 /* Private typedef -----------------------------------------------------------*/
mbed_official 76:aeb1df146756 60 /* Private define ------------------------------------------------------------*/
mbed_official 76:aeb1df146756 61 /* Private macro -------------------------------------------------------------*/
mbed_official 76:aeb1df146756 62 /* Private variables ---------------------------------------------------------*/
mbed_official 76:aeb1df146756 63 /* Private function prototypes -----------------------------------------------*/
mbed_official 76:aeb1df146756 64 /* Private functions ---------------------------------------------------------*/
mbed_official 76:aeb1df146756 65
mbed_official 76:aeb1df146756 66 /** @defgroup SYSCFG_Private_Functions
mbed_official 76:aeb1df146756 67 * @{
mbed_official 76:aeb1df146756 68 */
mbed_official 76:aeb1df146756 69
mbed_official 76:aeb1df146756 70 /** @defgroup SYSCFG_Group1 SYSCFG Initialization and Configuration functions
mbed_official 76:aeb1df146756 71 * @brief SYSCFG Initialization and Configuration functions
mbed_official 76:aeb1df146756 72 *
mbed_official 76:aeb1df146756 73 @verbatim
mbed_official 76:aeb1df146756 74 ===============================================================================
mbed_official 76:aeb1df146756 75 ##### SYSCFG Initialization and Configuration functions #####
mbed_official 76:aeb1df146756 76 ===============================================================================
mbed_official 76:aeb1df146756 77
mbed_official 76:aeb1df146756 78 @endverbatim
mbed_official 76:aeb1df146756 79 * @{
mbed_official 76:aeb1df146756 80 */
mbed_official 76:aeb1df146756 81
mbed_official 76:aeb1df146756 82 /**
mbed_official 76:aeb1df146756 83 * @brief Deinitializes the SYSCFG registers to their default reset values.
mbed_official 76:aeb1df146756 84 * @param None
mbed_official 76:aeb1df146756 85 * @retval None
mbed_official 76:aeb1df146756 86 * @note MEM_MODE bits are not affected by APB reset.
mbed_official 76:aeb1df146756 87 * @note MEM_MODE bits took the value from the user option bytes.
mbed_official 76:aeb1df146756 88 * @note CFGR2 register is not affected by APB reset.
mbed_official 76:aeb1df146756 89 * @note CLABBB configuration bits are locked when set.
mbed_official 76:aeb1df146756 90 * @note To unlock the configuration, perform a system reset.
mbed_official 76:aeb1df146756 91 */
mbed_official 76:aeb1df146756 92 void SYSCFG_DeInit(void)
mbed_official 76:aeb1df146756 93 {
mbed_official 76:aeb1df146756 94 /* Set SYSCFG_CFGR1 register to reset value without affecting MEM_MODE bits */
mbed_official 76:aeb1df146756 95 SYSCFG->CFGR1 &= SYSCFG_CFGR1_MEM_MODE;
mbed_official 76:aeb1df146756 96 /* Set EXTICRx registers to reset value */
mbed_official 76:aeb1df146756 97 SYSCFG->EXTICR[0] = 0;
mbed_official 76:aeb1df146756 98 SYSCFG->EXTICR[1] = 0;
mbed_official 76:aeb1df146756 99 SYSCFG->EXTICR[2] = 0;
mbed_official 76:aeb1df146756 100 SYSCFG->EXTICR[3] = 0;
mbed_official 76:aeb1df146756 101 /* Set CFGR2 register to reset value: clear SRAM parity error flag */
mbed_official 76:aeb1df146756 102 SYSCFG->CFGR2 |= (uint32_t) SYSCFG_CFGR2_SRAM_PE;
mbed_official 76:aeb1df146756 103 }
mbed_official 76:aeb1df146756 104
mbed_official 76:aeb1df146756 105 /**
mbed_official 76:aeb1df146756 106 * @brief Configures the memory mapping at address 0x00000000.
mbed_official 76:aeb1df146756 107 * @param SYSCFG_MemoryRemap: selects the memory remapping.
mbed_official 76:aeb1df146756 108 * This parameter can be one of the following values:
mbed_official 76:aeb1df146756 109 * @arg SYSCFG_MemoryRemap_Flash: Main Flash memory mapped at 0x00000000
mbed_official 76:aeb1df146756 110 * @arg SYSCFG_MemoryRemap_SystemMemory: System Flash memory mapped at 0x00000000
mbed_official 76:aeb1df146756 111 * @arg SYSCFG_MemoryRemap_SRAM: Embedded SRAM mapped at 0x00000000
mbed_official 76:aeb1df146756 112 * @retval None
mbed_official 76:aeb1df146756 113 */
mbed_official 76:aeb1df146756 114 void SYSCFG_MemoryRemapConfig(uint32_t SYSCFG_MemoryRemap)
mbed_official 76:aeb1df146756 115 {
mbed_official 76:aeb1df146756 116 uint32_t tmpctrl = 0;
mbed_official 76:aeb1df146756 117
mbed_official 76:aeb1df146756 118 /* Check the parameter */
mbed_official 76:aeb1df146756 119 assert_param(IS_SYSCFG_MEMORY_REMAP(SYSCFG_MemoryRemap));
mbed_official 76:aeb1df146756 120
mbed_official 76:aeb1df146756 121 /* Get CFGR1 register value */
mbed_official 76:aeb1df146756 122 tmpctrl = SYSCFG->CFGR1;
mbed_official 76:aeb1df146756 123
mbed_official 76:aeb1df146756 124 /* Clear MEM_MODE bits */
mbed_official 76:aeb1df146756 125 tmpctrl &= (uint32_t) (~SYSCFG_CFGR1_MEM_MODE);
mbed_official 76:aeb1df146756 126
mbed_official 76:aeb1df146756 127 /* Set the new MEM_MODE bits value */
mbed_official 76:aeb1df146756 128 tmpctrl |= (uint32_t) SYSCFG_MemoryRemap;
mbed_official 76:aeb1df146756 129
mbed_official 76:aeb1df146756 130 /* Set CFGR1 register with the new memory remap configuration */
mbed_official 76:aeb1df146756 131 SYSCFG->CFGR1 = tmpctrl;
mbed_official 76:aeb1df146756 132 }
mbed_official 76:aeb1df146756 133
mbed_official 76:aeb1df146756 134 /**
mbed_official 76:aeb1df146756 135 * @brief Configure the DMA channels remapping.
mbed_official 76:aeb1df146756 136 * @param SYSCFG_DMARemap: selects the DMA channels remap.
mbed_official 76:aeb1df146756 137 * This parameter can be one of the following values:
mbed_official 76:aeb1df146756 138 * @arg SYSCFG_DMARemap_TIM17: Remap TIM17 DMA requests from channel1 to channel2
mbed_official 76:aeb1df146756 139 * @arg SYSCFG_DMARemap_TIM16: Remap TIM16 DMA requests from channel3 to channel4
mbed_official 76:aeb1df146756 140 * @arg SYSCFG_DMARemap_USART1Rx: Remap USART1 Rx DMA requests from channel3 to channel5
mbed_official 76:aeb1df146756 141 * @arg SYSCFG_DMARemap_USART1Tx: Remap USART1 Tx DMA requests from channel2 to channel4
mbed_official 76:aeb1df146756 142 * @arg SYSCFG_DMARemap_ADC1: Remap ADC1 DMA requests from channel1 to channel2
mbed_official 76:aeb1df146756 143 * @param NewState: new state of the DMA channel remapping.
mbed_official 76:aeb1df146756 144 * This parameter can be: ENABLE or DISABLE.
mbed_official 76:aeb1df146756 145 * @note When enabled, DMA channel of the selected peripheral is remapped
mbed_official 76:aeb1df146756 146 * @note When disabled, Default DMA channel is mapped to the selected peripheral
mbed_official 76:aeb1df146756 147 * @note By default TIM17 DMA requests is mapped to channel 1,
mbed_official 76:aeb1df146756 148 * use SYSCFG_DMAChannelRemapConfig(SYSCFG_DMARemap_TIM17, Enable) to remap
mbed_official 76:aeb1df146756 149 * TIM17 DMA requests to channel 2 and use
mbed_official 76:aeb1df146756 150 * SYSCFG_DMAChannelRemapConfig(SYSCFG_DMARemap_TIM17, Disable) to map
mbed_official 76:aeb1df146756 151 * TIM17 DMA requests to channel 1 (default mapping)
mbed_official 76:aeb1df146756 152 * @retval None
mbed_official 76:aeb1df146756 153 */
mbed_official 76:aeb1df146756 154 void SYSCFG_DMAChannelRemapConfig(uint32_t SYSCFG_DMARemap, FunctionalState NewState)
mbed_official 76:aeb1df146756 155 {
mbed_official 76:aeb1df146756 156 /* Check the parameters */
mbed_official 76:aeb1df146756 157 assert_param(IS_SYSCFG_DMA_REMAP(SYSCFG_DMARemap));
mbed_official 76:aeb1df146756 158 assert_param(IS_FUNCTIONAL_STATE(NewState));
mbed_official 76:aeb1df146756 159
mbed_official 76:aeb1df146756 160 if (NewState != DISABLE)
mbed_official 76:aeb1df146756 161 {
mbed_official 76:aeb1df146756 162 /* Remap the DMA channel */
mbed_official 76:aeb1df146756 163 SYSCFG->CFGR1 |= (uint32_t)SYSCFG_DMARemap;
mbed_official 76:aeb1df146756 164 }
mbed_official 76:aeb1df146756 165 else
mbed_official 76:aeb1df146756 166 {
mbed_official 76:aeb1df146756 167 /* use the default DMA channel mapping */
mbed_official 76:aeb1df146756 168 SYSCFG->CFGR1 &= (uint32_t)(~SYSCFG_DMARemap);
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 * @brief Configure the I2C fast mode plus driving capability.
mbed_official 76:aeb1df146756 174 * @param SYSCFG_I2CFastModePlus: selects the pin.
mbed_official 76:aeb1df146756 175 * This parameter can be one of the following values:
mbed_official 76:aeb1df146756 176 * @arg SYSCFG_I2CFastModePlus_PB6: Configure fast mode plus driving capability for PB6
mbed_official 76:aeb1df146756 177 * @arg SYSCFG_I2CFastModePlus_PB7: Configure fast mode plus driving capability for PB7
mbed_official 76:aeb1df146756 178 * @arg SYSCFG_I2CFastModePlus_PB8: Configure fast mode plus driving capability for PB8
mbed_official 76:aeb1df146756 179 * @arg SYSCFG_I2CFastModePlus_PB9: Configure fast mode plus driving capability for PB9
mbed_official 76:aeb1df146756 180 * @arg SYSCFG_I2CFastModePlus_PA9: Configure fast mode plus driving capability for PA9 (only for STM32F031 and STM32F030 devices)
mbed_official 76:aeb1df146756 181 * @arg SYSCFG_I2CFastModePlus_PA10: Configure fast mode plus driving capability for PA10 (only for STM32F031 and STM32F030 devices)
mbed_official 76:aeb1df146756 182 * @arg SYSCFG_I2CFastModePlus_I2C1: Configure fast mode plus driving capability for PB10, PB11, PF6 and PF7(only for STM32F031 and STM32F030 devices)
mbed_official 76:aeb1df146756 183 * @arg SYSCFG_I2CFastModePlus_I2C2: Configure fast mode plus driving capability for I2C2 pins, available only for STM32F072 devices
mbed_official 76:aeb1df146756 184 *
mbed_official 76:aeb1df146756 185 * @param NewState: new state of the DMA channel remapping.
mbed_official 76:aeb1df146756 186 * This parameter can be: ENABLE or DISABLE.
mbed_official 76:aeb1df146756 187 * @note ENABLE: Enable fast mode plus driving capability for selected I2C pin
mbed_official 76:aeb1df146756 188 * @note DISABLE: Disable fast mode plus driving capability for selected I2C pin
mbed_official 76:aeb1df146756 189 * @note For I2C1, fast mode plus driving capability can be enabled on all selected
mbed_official 76:aeb1df146756 190 * I2C1 pins using SYSCFG_I2CFastModePlus_I2C1 parameter or independently
mbed_official 76:aeb1df146756 191 * on each one of the following pins PB6, PB7, PB8 and PB9.
mbed_official 76:aeb1df146756 192 * @note For remaing I2C1 pins (PA14, PA15...) fast mode plus driving capability
mbed_official 76:aeb1df146756 193 * can be enabled only by using SYSCFG_I2CFastModePlus_I2C1 parameter.
mbed_official 76:aeb1df146756 194 * @note For all I2C2 pins fast mode plus driving capability can be enabled
mbed_official 76:aeb1df146756 195 * only by using SYSCFG_I2CFastModePlus_I2C2 parameter.
mbed_official 76:aeb1df146756 196 * @retval None
mbed_official 76:aeb1df146756 197 */
mbed_official 76:aeb1df146756 198 void SYSCFG_I2CFastModePlusConfig(uint32_t SYSCFG_I2CFastModePlus, FunctionalState NewState)
mbed_official 76:aeb1df146756 199 {
mbed_official 76:aeb1df146756 200 /* Check the parameters */
mbed_official 76:aeb1df146756 201 assert_param(IS_SYSCFG_I2C_FMP(SYSCFG_I2CFastModePlus));
mbed_official 76:aeb1df146756 202 assert_param(IS_FUNCTIONAL_STATE(NewState));
mbed_official 76:aeb1df146756 203
mbed_official 76:aeb1df146756 204 if (NewState != DISABLE)
mbed_official 76:aeb1df146756 205 {
mbed_official 76:aeb1df146756 206 /* Enable fast mode plus driving capability for selected pin */
mbed_official 76:aeb1df146756 207 SYSCFG->CFGR1 |= (uint32_t)SYSCFG_I2CFastModePlus;
mbed_official 76:aeb1df146756 208 }
mbed_official 76:aeb1df146756 209 else
mbed_official 76:aeb1df146756 210 {
mbed_official 76:aeb1df146756 211 /* Disable fast mode plus driving capability for selected pin */
mbed_official 76:aeb1df146756 212 SYSCFG->CFGR1 &= (uint32_t)(~SYSCFG_I2CFastModePlus);
mbed_official 76:aeb1df146756 213 }
mbed_official 76:aeb1df146756 214 }
mbed_official 76:aeb1df146756 215
mbed_official 76:aeb1df146756 216 /**
mbed_official 76:aeb1df146756 217 * @brief Selects the GPIO pin used as EXTI Line.
mbed_official 76:aeb1df146756 218 * @param EXTI_PortSourceGPIOx: selects the GPIO port to be used as source
mbed_official 76:aeb1df146756 219 * for EXTI lines where x can be (A, B, C, D, E or F).
mbed_official 76:aeb1df146756 220 * @note GPIOE is available only for STM32F072.
mbed_official 76:aeb1df146756 221 * @note GPIOD is not available for STM32F031.
mbed_official 76:aeb1df146756 222 * @param EXTI_PinSourcex: specifies the EXTI line to be configured.
mbed_official 76:aeb1df146756 223 * @note This parameter can be EXTI_PinSourcex where x can be:
mbed_official 76:aeb1df146756 224 * For STM32F051 and STM32F030: (0..15) for GPIOA, GPIOB, GPIOC, (2) for GPIOD and (0..1, 4..7) for GIIOF.
mbed_official 76:aeb1df146756 225 * For STM32F072: (0..15) for GPIOA, GPIOB, GPIOC, GPIOD, GPIOE, (0..10) for GPIOF.
mbed_official 76:aeb1df146756 226 * For STM32F031: (0..15) for GPIOA, GPIOB, (13..15) for GPIOC and (0..1, 6..7) for GPIOF.
mbed_official 76:aeb1df146756 227 * @retval None
mbed_official 76:aeb1df146756 228 */
mbed_official 76:aeb1df146756 229 void SYSCFG_EXTILineConfig(uint8_t EXTI_PortSourceGPIOx, uint8_t EXTI_PinSourcex)
mbed_official 76:aeb1df146756 230 {
mbed_official 76:aeb1df146756 231 uint32_t tmp = 0x00;
mbed_official 76:aeb1df146756 232
mbed_official 76:aeb1df146756 233 /* Check the parameters */
mbed_official 76:aeb1df146756 234 assert_param(IS_EXTI_PORT_SOURCE(EXTI_PortSourceGPIOx));
mbed_official 76:aeb1df146756 235 assert_param(IS_EXTI_PIN_SOURCE(EXTI_PinSourcex));
mbed_official 76:aeb1df146756 236
mbed_official 76:aeb1df146756 237 tmp = ((uint32_t)0x0F) << (0x04 * (EXTI_PinSourcex & (uint8_t)0x03));
mbed_official 76:aeb1df146756 238 SYSCFG->EXTICR[EXTI_PinSourcex >> 0x02] &= ~tmp;
mbed_official 76:aeb1df146756 239 SYSCFG->EXTICR[EXTI_PinSourcex >> 0x02] |= (((uint32_t)EXTI_PortSourceGPIOx) << (0x04 * (EXTI_PinSourcex & (uint8_t)0x03)));
mbed_official 76:aeb1df146756 240 }
mbed_official 76:aeb1df146756 241
mbed_official 76:aeb1df146756 242 /**
mbed_official 76:aeb1df146756 243 * @brief Connect the selected parameter to the break input of TIM1.
mbed_official 76:aeb1df146756 244 * @note The selected configuration is locked and can be unlocked by system reset
mbed_official 76:aeb1df146756 245 * @param SYSCFG_Break: selects the configuration to be connected to break
mbed_official 76:aeb1df146756 246 * input of TIM1
mbed_official 76:aeb1df146756 247 * This parameter can be any combination of the following values:
mbed_official 76:aeb1df146756 248 * @arg SYSCFG_Break_PVD: Connects the PVD event to the Break Input of TIM1,, not avaailable for STM32F030 devices.
mbed_official 76:aeb1df146756 249 * @arg SYSCFG_Break_SRAMParity: Connects the SRAM_PARITY error signal to the Break Input of TIM1 .
mbed_official 76:aeb1df146756 250 * @arg SYSCFG_Break_Lockup: Connects Lockup output of CortexM0 to the break input of TIM1.
mbed_official 76:aeb1df146756 251 * @retval None
mbed_official 76:aeb1df146756 252 */
mbed_official 76:aeb1df146756 253 void SYSCFG_BreakConfig(uint32_t SYSCFG_Break)
mbed_official 76:aeb1df146756 254 {
mbed_official 76:aeb1df146756 255 /* Check the parameter */
mbed_official 76:aeb1df146756 256 assert_param(IS_SYSCFG_LOCK_CONFIG(SYSCFG_Break));
mbed_official 76:aeb1df146756 257
mbed_official 76:aeb1df146756 258 SYSCFG->CFGR2 |= (uint32_t) SYSCFG_Break;
mbed_official 76:aeb1df146756 259 }
mbed_official 76:aeb1df146756 260
mbed_official 76:aeb1df146756 261 /**
mbed_official 76:aeb1df146756 262 * @brief Checks whether the specified SYSCFG flag is set or not.
mbed_official 76:aeb1df146756 263 * @param SYSCFG_Flag: specifies the SYSCFG flag to check.
mbed_official 76:aeb1df146756 264 * This parameter can be one of the following values:
mbed_official 76:aeb1df146756 265 * @arg SYSCFG_FLAG_PE: SRAM parity error flag.
mbed_official 76:aeb1df146756 266 * @retval The new state of SYSCFG_Flag (SET or RESET).
mbed_official 76:aeb1df146756 267 */
mbed_official 76:aeb1df146756 268 FlagStatus SYSCFG_GetFlagStatus(uint32_t SYSCFG_Flag)
mbed_official 76:aeb1df146756 269 {
mbed_official 76:aeb1df146756 270 FlagStatus bitstatus = RESET;
mbed_official 76:aeb1df146756 271
mbed_official 76:aeb1df146756 272 /* Check the parameter */
mbed_official 76:aeb1df146756 273 assert_param(IS_SYSCFG_FLAG(SYSCFG_Flag));
mbed_official 76:aeb1df146756 274
mbed_official 76:aeb1df146756 275 /* Check the status of the specified SPI flag */
mbed_official 76:aeb1df146756 276 if ((SYSCFG->CFGR2 & SYSCFG_CFGR2_SRAM_PE) != (uint32_t)RESET)
mbed_official 76:aeb1df146756 277 {
mbed_official 76:aeb1df146756 278 /* SYSCFG_Flag is set */
mbed_official 76:aeb1df146756 279 bitstatus = SET;
mbed_official 76:aeb1df146756 280 }
mbed_official 76:aeb1df146756 281 else
mbed_official 76:aeb1df146756 282 {
mbed_official 76:aeb1df146756 283 /* SYSCFG_Flag is reset */
mbed_official 76:aeb1df146756 284 bitstatus = RESET;
mbed_official 76:aeb1df146756 285 }
mbed_official 76:aeb1df146756 286 /* Return the SYSCFG_Flag status */
mbed_official 76:aeb1df146756 287 return bitstatus;
mbed_official 76:aeb1df146756 288 }
mbed_official 76:aeb1df146756 289
mbed_official 76:aeb1df146756 290 /**
mbed_official 76:aeb1df146756 291 * @brief Clear the selected SYSCFG flag.
mbed_official 76:aeb1df146756 292 * @param SYSCFG_Flag: selects the flag to be cleared.
mbed_official 76:aeb1df146756 293 * This parameter can be any combination of the following values:
mbed_official 76:aeb1df146756 294 * @arg SYSCFG_FLAG_PE: SRAM parity error flag.
mbed_official 76:aeb1df146756 295 * @retval None
mbed_official 76:aeb1df146756 296 */
mbed_official 76:aeb1df146756 297 void SYSCFG_ClearFlag(uint32_t SYSCFG_Flag)
mbed_official 76:aeb1df146756 298 {
mbed_official 76:aeb1df146756 299 /* Check the parameter */
mbed_official 76:aeb1df146756 300 assert_param(IS_SYSCFG_FLAG(SYSCFG_Flag));
mbed_official 76:aeb1df146756 301
mbed_official 76:aeb1df146756 302 SYSCFG->CFGR2 |= (uint32_t) SYSCFG_Flag;
mbed_official 76:aeb1df146756 303 }
mbed_official 76:aeb1df146756 304
mbed_official 76:aeb1df146756 305 /**
mbed_official 76:aeb1df146756 306 * @}
mbed_official 76:aeb1df146756 307 */
mbed_official 76:aeb1df146756 308
mbed_official 76:aeb1df146756 309 /**
mbed_official 76:aeb1df146756 310 * @}
mbed_official 76:aeb1df146756 311 */
mbed_official 76:aeb1df146756 312
mbed_official 76:aeb1df146756 313 /**
mbed_official 76:aeb1df146756 314 * @}
mbed_official 76:aeb1df146756 315 */
mbed_official 76:aeb1df146756 316
mbed_official 76:aeb1df146756 317 /**
mbed_official 76:aeb1df146756 318 * @}
mbed_official 76:aeb1df146756 319 */
mbed_official 76:aeb1df146756 320 /************************ (C) COPYRIGHT STMicroelectronics *****END OF FILE****/