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_gpio.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_gpio.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 GPIO peripheral:
mbed_official 76:aeb1df146756 9 * + Initialization and Configuration functions
mbed_official 76:aeb1df146756 10 * + GPIO Read and Write functions
mbed_official 76:aeb1df146756 11 * + GPIO Alternate functions configuration functions
mbed_official 76:aeb1df146756 12 *
mbed_official 76:aeb1df146756 13 * @verbatim
mbed_official 76:aeb1df146756 14 *
mbed_official 76:aeb1df146756 15 *
mbed_official 76:aeb1df146756 16 ===========================================================================
mbed_official 76:aeb1df146756 17 ##### How to use this driver #####
mbed_official 76:aeb1df146756 18 ===========================================================================
mbed_official 76:aeb1df146756 19 [..]
mbed_official 76:aeb1df146756 20 (#) Enable the GPIO AHB clock using RCC_AHBPeriphClockCmd()
mbed_official 76:aeb1df146756 21 (#) Configure the GPIO pin(s) using GPIO_Init()
mbed_official 76:aeb1df146756 22 Four possible configuration are available for each pin:
mbed_official 76:aeb1df146756 23 (++) Input: Floating, Pull-up, Pull-down.
mbed_official 76:aeb1df146756 24 (++) Output: Push-Pull (Pull-up, Pull-down or no Pull)
mbed_official 76:aeb1df146756 25 Open Drain (Pull-up, Pull-down or no Pull).
mbed_official 76:aeb1df146756 26 In output mode, the speed is configurable: Low, Medium, Fast or High.
mbed_official 76:aeb1df146756 27 (++) Alternate Function: Push-Pull (Pull-up, Pull-down or no Pull)
mbed_official 76:aeb1df146756 28 Open Drain (Pull-up, Pull-down or no Pull).
mbed_official 76:aeb1df146756 29 (++) Analog: required mode when a pin is to be used as ADC channel,
mbed_official 76:aeb1df146756 30 DAC output or comparator input.
mbed_official 76:aeb1df146756 31 (#) Peripherals alternate function:
mbed_official 76:aeb1df146756 32 (++) For ADC, DAC and comparators, configure the desired pin in analog
mbed_official 76:aeb1df146756 33 mode using GPIO_InitStruct->GPIO_Mode = GPIO_Mode_AN
mbed_official 76:aeb1df146756 34 (++) For other peripherals (TIM, USART...):
mbed_official 76:aeb1df146756 35 (+++) Connect the pin to the desired peripherals' Alternate
mbed_official 76:aeb1df146756 36 Function (AF) using GPIO_PinAFConfig() function. For PortC,
mbed_official 76:aeb1df146756 37 PortD and PortF, no configuration is needed.
mbed_official 76:aeb1df146756 38 (+++) Configure the desired pin in alternate function mode using
mbed_official 76:aeb1df146756 39 GPIO_InitStruct->GPIO_Mode = GPIO_Mode_AF
mbed_official 76:aeb1df146756 40 (+++) Select the type, pull-up/pull-down and output speed via
mbed_official 76:aeb1df146756 41 GPIO_PuPd, GPIO_OType and GPIO_Speed members
mbed_official 76:aeb1df146756 42 (+++) Call GPIO_Init() function
mbed_official 76:aeb1df146756 43 (#) To get the level of a pin configured in input mode use GPIO_ReadInputDataBit()
mbed_official 76:aeb1df146756 44 (#) To set/reset the level of a pin configured in output mode use
mbed_official 76:aeb1df146756 45 GPIO_SetBits()/GPIO_ResetBits()
mbed_official 76:aeb1df146756 46 (#) During and just after reset, the alternate functions are not active and
mbed_official 76:aeb1df146756 47 the GPIO pins are configured in input floating mode (except JTAG pins).
mbed_official 76:aeb1df146756 48 (#) The LSE oscillator pins OSC32_IN and OSC32_OUT can be used as
mbed_official 76:aeb1df146756 49 general-purpose (PC14 and PC15, respectively) when the LSE oscillator
mbed_official 76:aeb1df146756 50 is off. The LSE has priority over the GPIO function.
mbed_official 76:aeb1df146756 51 (#) The HSE oscillator pins OSC_IN/OSC_OUT can be used as general-purpose
mbed_official 76:aeb1df146756 52 PD0 and PD1, respectively, when the HSE oscillator is off. The HSE has
mbed_official 76:aeb1df146756 53 priority over the GPIO function.
mbed_official 76:aeb1df146756 54 @endverbatim
mbed_official 76:aeb1df146756 55 ******************************************************************************
mbed_official 76:aeb1df146756 56 * @attention
mbed_official 76:aeb1df146756 57 *
mbed_official 76:aeb1df146756 58 * <h2><center>&copy; COPYRIGHT 2014 STMicroelectronics</center></h2>
mbed_official 76:aeb1df146756 59 *
mbed_official 76:aeb1df146756 60 * Licensed under MCD-ST Liberty SW License Agreement V2, (the "License");
mbed_official 76:aeb1df146756 61 * You may not use this file except in compliance with the License.
mbed_official 76:aeb1df146756 62 * You may obtain a copy of the License at:
mbed_official 76:aeb1df146756 63 *
mbed_official 76:aeb1df146756 64 * http://www.st.com/software_license_agreement_liberty_v2
mbed_official 76:aeb1df146756 65 *
mbed_official 76:aeb1df146756 66 * Unless required by applicable law or agreed to in writing, software
mbed_official 76:aeb1df146756 67 * distributed under the License is distributed on an "AS IS" BASIS,
mbed_official 76:aeb1df146756 68 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
mbed_official 76:aeb1df146756 69 * See the License for the specific language governing permissions and
mbed_official 76:aeb1df146756 70 * limitations under the License.
mbed_official 76:aeb1df146756 71 *
mbed_official 76:aeb1df146756 72 ******************************************************************************
mbed_official 76:aeb1df146756 73 */
mbed_official 76:aeb1df146756 74
mbed_official 76:aeb1df146756 75 /* Includes ------------------------------------------------------------------*/
mbed_official 76:aeb1df146756 76 #include "stm32f0xx_gpio.h"
mbed_official 76:aeb1df146756 77 #include "stm32f0xx_rcc.h"
mbed_official 76:aeb1df146756 78
mbed_official 76:aeb1df146756 79 /** @addtogroup STM32F0xx_StdPeriph_Driver
mbed_official 76:aeb1df146756 80 * @{
mbed_official 76:aeb1df146756 81 */
mbed_official 76:aeb1df146756 82
mbed_official 76:aeb1df146756 83 /** @defgroup GPIO
mbed_official 76:aeb1df146756 84 * @brief GPIO driver modules
mbed_official 76:aeb1df146756 85 * @{
mbed_official 76:aeb1df146756 86 */
mbed_official 76:aeb1df146756 87
mbed_official 76:aeb1df146756 88 /* Private typedef -----------------------------------------------------------*/
mbed_official 76:aeb1df146756 89 /* Private define ------------------------------------------------------------*/
mbed_official 76:aeb1df146756 90 /* Private macro -------------------------------------------------------------*/
mbed_official 76:aeb1df146756 91 /* Private variables ---------------------------------------------------------*/
mbed_official 76:aeb1df146756 92 /* Private function prototypes -----------------------------------------------*/
mbed_official 76:aeb1df146756 93 /* Private functions ---------------------------------------------------------*/
mbed_official 76:aeb1df146756 94
mbed_official 76:aeb1df146756 95 /** @defgroup GPIO_Private_Functions
mbed_official 76:aeb1df146756 96 * @{
mbed_official 76:aeb1df146756 97 */
mbed_official 76:aeb1df146756 98
mbed_official 76:aeb1df146756 99 /** @defgroup GPIO_Group1 Initialization and Configuration
mbed_official 76:aeb1df146756 100 * @brief Initialization and Configuration
mbed_official 76:aeb1df146756 101 *
mbed_official 76:aeb1df146756 102 @verbatim
mbed_official 76:aeb1df146756 103 ===============================================================================
mbed_official 76:aeb1df146756 104 ##### Initialization and Configuration #####
mbed_official 76:aeb1df146756 105 ===============================================================================
mbed_official 76:aeb1df146756 106
mbed_official 76:aeb1df146756 107 @endverbatim
mbed_official 76:aeb1df146756 108 * @{
mbed_official 76:aeb1df146756 109 */
mbed_official 76:aeb1df146756 110
mbed_official 76:aeb1df146756 111 /**
mbed_official 76:aeb1df146756 112 * @brief Deinitializes the GPIOx peripheral registers to their default reset
mbed_official 76:aeb1df146756 113 * values.
mbed_official 76:aeb1df146756 114 * @param GPIOx: where x can be (A, B, C, D, E or F) to select the GPIO peripheral.
mbed_official 76:aeb1df146756 115 * @note GPIOE is available only for STM32F072.
mbed_official 76:aeb1df146756 116 * @note GPIOD is not available for STM32F031.
mbed_official 76:aeb1df146756 117 * @retval None
mbed_official 76:aeb1df146756 118 */
mbed_official 76:aeb1df146756 119 void GPIO_DeInit(GPIO_TypeDef* GPIOx)
mbed_official 76:aeb1df146756 120 {
mbed_official 76:aeb1df146756 121 /* Check the parameters */
mbed_official 76:aeb1df146756 122 assert_param(IS_GPIO_ALL_PERIPH(GPIOx));
mbed_official 76:aeb1df146756 123
mbed_official 76:aeb1df146756 124 if(GPIOx == GPIOA)
mbed_official 76:aeb1df146756 125 {
mbed_official 76:aeb1df146756 126 RCC_AHBPeriphResetCmd(RCC_AHBPeriph_GPIOA, ENABLE);
mbed_official 76:aeb1df146756 127 RCC_AHBPeriphResetCmd(RCC_AHBPeriph_GPIOA, DISABLE);
mbed_official 76:aeb1df146756 128 }
mbed_official 76:aeb1df146756 129 else if(GPIOx == GPIOB)
mbed_official 76:aeb1df146756 130 {
mbed_official 76:aeb1df146756 131 RCC_AHBPeriphResetCmd(RCC_AHBPeriph_GPIOB, ENABLE);
mbed_official 76:aeb1df146756 132 RCC_AHBPeriphResetCmd(RCC_AHBPeriph_GPIOB, DISABLE);
mbed_official 76:aeb1df146756 133 }
mbed_official 76:aeb1df146756 134 else if(GPIOx == GPIOC)
mbed_official 76:aeb1df146756 135 {
mbed_official 76:aeb1df146756 136 RCC_AHBPeriphResetCmd(RCC_AHBPeriph_GPIOC, ENABLE);
mbed_official 76:aeb1df146756 137 RCC_AHBPeriphResetCmd(RCC_AHBPeriph_GPIOC, DISABLE);
mbed_official 76:aeb1df146756 138 }
mbed_official 76:aeb1df146756 139 else if(GPIOx == GPIOD)
mbed_official 76:aeb1df146756 140 {
mbed_official 76:aeb1df146756 141 RCC_AHBPeriphResetCmd(RCC_AHBPeriph_GPIOD, ENABLE);
mbed_official 76:aeb1df146756 142 RCC_AHBPeriphResetCmd(RCC_AHBPeriph_GPIOD, DISABLE);
mbed_official 76:aeb1df146756 143 }
mbed_official 76:aeb1df146756 144 else if(GPIOx == GPIOE)
mbed_official 76:aeb1df146756 145 {
mbed_official 76:aeb1df146756 146 RCC_AHBPeriphResetCmd(RCC_AHBPeriph_GPIOE, ENABLE);
mbed_official 76:aeb1df146756 147 RCC_AHBPeriphResetCmd(RCC_AHBPeriph_GPIOE, DISABLE);
mbed_official 76:aeb1df146756 148 }
mbed_official 76:aeb1df146756 149 else
mbed_official 76:aeb1df146756 150 {
mbed_official 76:aeb1df146756 151 if(GPIOx == GPIOF)
mbed_official 76:aeb1df146756 152 {
mbed_official 76:aeb1df146756 153 RCC_AHBPeriphResetCmd(RCC_AHBPeriph_GPIOF, ENABLE);
mbed_official 76:aeb1df146756 154 RCC_AHBPeriphResetCmd(RCC_AHBPeriph_GPIOF, DISABLE);
mbed_official 76:aeb1df146756 155 }
mbed_official 76:aeb1df146756 156 }
mbed_official 76:aeb1df146756 157 }
mbed_official 76:aeb1df146756 158
mbed_official 76:aeb1df146756 159 /**
mbed_official 76:aeb1df146756 160 * @brief Initializes the GPIOx peripheral according to the specified
mbed_official 76:aeb1df146756 161 * parameters in the GPIO_InitStruct.
mbed_official 76:aeb1df146756 162 * @param GPIOx: where x can be (A, B, C, D, E or F) to select the GPIO peripheral.
mbed_official 76:aeb1df146756 163 * @note GPIOE is available only for STM32F072.
mbed_official 76:aeb1df146756 164 * @note GPIOD is not available for STM32F031.
mbed_official 76:aeb1df146756 165 * @param GPIO_InitStruct: pointer to a GPIO_InitTypeDef structure that contains
mbed_official 76:aeb1df146756 166 * the configuration information for the specified GPIO peripheral.
mbed_official 76:aeb1df146756 167 * @retval None
mbed_official 76:aeb1df146756 168 */
mbed_official 76:aeb1df146756 169 void GPIO_Init(GPIO_TypeDef* GPIOx, GPIO_InitTypeDef* GPIO_InitStruct)
mbed_official 76:aeb1df146756 170 {
mbed_official 76:aeb1df146756 171 uint32_t pinpos = 0x00, pos = 0x00 , currentpin = 0x00;
mbed_official 76:aeb1df146756 172
mbed_official 76:aeb1df146756 173 /* Check the parameters */
mbed_official 76:aeb1df146756 174 assert_param(IS_GPIO_ALL_PERIPH(GPIOx));
mbed_official 76:aeb1df146756 175 assert_param(IS_GPIO_PIN(GPIO_InitStruct->GPIO_Pin));
mbed_official 76:aeb1df146756 176 assert_param(IS_GPIO_MODE(GPIO_InitStruct->GPIO_Mode));
mbed_official 76:aeb1df146756 177 assert_param(IS_GPIO_PUPD(GPIO_InitStruct->GPIO_PuPd));
mbed_official 76:aeb1df146756 178
mbed_official 76:aeb1df146756 179 /*-------------------------- Configure the port pins -----------------------*/
mbed_official 76:aeb1df146756 180 /*-- GPIO Mode Configuration --*/
mbed_official 76:aeb1df146756 181 for (pinpos = 0x00; pinpos < 0x10; pinpos++)
mbed_official 76:aeb1df146756 182 {
mbed_official 76:aeb1df146756 183 pos = ((uint32_t)0x01) << pinpos;
mbed_official 76:aeb1df146756 184
mbed_official 76:aeb1df146756 185 /* Get the port pins position */
mbed_official 76:aeb1df146756 186 currentpin = (GPIO_InitStruct->GPIO_Pin) & pos;
mbed_official 76:aeb1df146756 187
mbed_official 76:aeb1df146756 188 if (currentpin == pos)
mbed_official 76:aeb1df146756 189 {
mbed_official 76:aeb1df146756 190 if ((GPIO_InitStruct->GPIO_Mode == GPIO_Mode_OUT) || (GPIO_InitStruct->GPIO_Mode == GPIO_Mode_AF))
mbed_official 76:aeb1df146756 191 {
mbed_official 76:aeb1df146756 192 /* Check Speed mode parameters */
mbed_official 76:aeb1df146756 193 assert_param(IS_GPIO_SPEED(GPIO_InitStruct->GPIO_Speed));
mbed_official 76:aeb1df146756 194
mbed_official 76:aeb1df146756 195 /* Speed mode configuration */
mbed_official 76:aeb1df146756 196 GPIOx->OSPEEDR &= ~(GPIO_OSPEEDER_OSPEEDR0 << (pinpos * 2));
mbed_official 76:aeb1df146756 197 GPIOx->OSPEEDR |= ((uint32_t)(GPIO_InitStruct->GPIO_Speed) << (pinpos * 2));
mbed_official 76:aeb1df146756 198
mbed_official 76:aeb1df146756 199 /* Check Output mode parameters */
mbed_official 76:aeb1df146756 200 assert_param(IS_GPIO_OTYPE(GPIO_InitStruct->GPIO_OType));
mbed_official 76:aeb1df146756 201
mbed_official 76:aeb1df146756 202 /* Output mode configuration */
mbed_official 76:aeb1df146756 203 GPIOx->OTYPER &= ~((GPIO_OTYPER_OT_0) << ((uint16_t)pinpos));
mbed_official 76:aeb1df146756 204 GPIOx->OTYPER |= (uint16_t)(((uint16_t)GPIO_InitStruct->GPIO_OType) << ((uint16_t)pinpos));
mbed_official 76:aeb1df146756 205 }
mbed_official 76:aeb1df146756 206
mbed_official 76:aeb1df146756 207 GPIOx->MODER &= ~(GPIO_MODER_MODER0 << (pinpos * 2));
mbed_official 76:aeb1df146756 208
mbed_official 76:aeb1df146756 209 GPIOx->MODER |= (((uint32_t)GPIO_InitStruct->GPIO_Mode) << (pinpos * 2));
mbed_official 76:aeb1df146756 210
mbed_official 76:aeb1df146756 211 /* Pull-up Pull down resistor configuration */
mbed_official 76:aeb1df146756 212 GPIOx->PUPDR &= ~(GPIO_PUPDR_PUPDR0 << ((uint16_t)pinpos * 2));
mbed_official 76:aeb1df146756 213 GPIOx->PUPDR |= (((uint32_t)GPIO_InitStruct->GPIO_PuPd) << (pinpos * 2));
mbed_official 76:aeb1df146756 214 }
mbed_official 76:aeb1df146756 215 }
mbed_official 76:aeb1df146756 216 }
mbed_official 76:aeb1df146756 217
mbed_official 76:aeb1df146756 218 /**
mbed_official 76:aeb1df146756 219 * @brief Fills each GPIO_InitStruct member with its default value.
mbed_official 76:aeb1df146756 220 * @param GPIO_InitStruct: pointer to a GPIO_InitTypeDef structure which will
mbed_official 76:aeb1df146756 221 * be initialized.
mbed_official 76:aeb1df146756 222 * @retval None
mbed_official 76:aeb1df146756 223 */
mbed_official 76:aeb1df146756 224 void GPIO_StructInit(GPIO_InitTypeDef* GPIO_InitStruct)
mbed_official 76:aeb1df146756 225 {
mbed_official 76:aeb1df146756 226 /* Reset GPIO init structure parameters values */
mbed_official 76:aeb1df146756 227 GPIO_InitStruct->GPIO_Pin = GPIO_Pin_All;
mbed_official 76:aeb1df146756 228 GPIO_InitStruct->GPIO_Mode = GPIO_Mode_IN;
mbed_official 76:aeb1df146756 229 GPIO_InitStruct->GPIO_Speed = GPIO_Speed_Level_2;
mbed_official 76:aeb1df146756 230 GPIO_InitStruct->GPIO_OType = GPIO_OType_PP;
mbed_official 76:aeb1df146756 231 GPIO_InitStruct->GPIO_PuPd = GPIO_PuPd_NOPULL;
mbed_official 76:aeb1df146756 232 }
mbed_official 76:aeb1df146756 233
mbed_official 76:aeb1df146756 234 /**
mbed_official 76:aeb1df146756 235 * @brief Locks GPIO Pins configuration registers.
mbed_official 76:aeb1df146756 236 * @note The locked registers are GPIOx_MODER, GPIOx_OTYPER, GPIOx_OSPEEDR,
mbed_official 76:aeb1df146756 237 * GPIOx_PUPDR, GPIOx_AFRL and GPIOx_AFRH.
mbed_official 76:aeb1df146756 238 * @note The configuration of the locked GPIO pins can no longer be modified
mbed_official 76:aeb1df146756 239 * until the next device reset.
mbed_official 76:aeb1df146756 240 * @param GPIOx: where x can be (A or B) to select the GPIO peripheral.
mbed_official 76:aeb1df146756 241 * @param GPIO_Pin: specifies the port bit to be written.
mbed_official 76:aeb1df146756 242 * This parameter can be any combination of GPIO_Pin_x where x can be (0..15).
mbed_official 76:aeb1df146756 243 * @retval None
mbed_official 76:aeb1df146756 244 */
mbed_official 76:aeb1df146756 245 void GPIO_PinLockConfig(GPIO_TypeDef* GPIOx, uint16_t GPIO_Pin)
mbed_official 76:aeb1df146756 246 {
mbed_official 76:aeb1df146756 247 __IO uint32_t tmp = 0x00010000;
mbed_official 76:aeb1df146756 248
mbed_official 76:aeb1df146756 249 /* Check the parameters */
mbed_official 76:aeb1df146756 250 assert_param(IS_GPIO_LIST_PERIPH(GPIOx));
mbed_official 76:aeb1df146756 251 assert_param(IS_GPIO_PIN(GPIO_Pin));
mbed_official 76:aeb1df146756 252
mbed_official 76:aeb1df146756 253 tmp |= GPIO_Pin;
mbed_official 76:aeb1df146756 254 /* Set LCKK bit */
mbed_official 76:aeb1df146756 255 GPIOx->LCKR = tmp;
mbed_official 76:aeb1df146756 256 /* Reset LCKK bit */
mbed_official 76:aeb1df146756 257 GPIOx->LCKR = GPIO_Pin;
mbed_official 76:aeb1df146756 258 /* Set LCKK bit */
mbed_official 76:aeb1df146756 259 GPIOx->LCKR = tmp;
mbed_official 76:aeb1df146756 260 /* Read LCKK bit */
mbed_official 76:aeb1df146756 261 tmp = GPIOx->LCKR;
mbed_official 76:aeb1df146756 262 /* Read LCKK bit */
mbed_official 76:aeb1df146756 263 tmp = GPIOx->LCKR;
mbed_official 76:aeb1df146756 264 }
mbed_official 76:aeb1df146756 265
mbed_official 76:aeb1df146756 266 /**
mbed_official 76:aeb1df146756 267 * @}
mbed_official 76:aeb1df146756 268 */
mbed_official 76:aeb1df146756 269
mbed_official 76:aeb1df146756 270 /** @defgroup GPIO_Group2 GPIO Read and Write
mbed_official 76:aeb1df146756 271 * @brief GPIO Read and Write
mbed_official 76:aeb1df146756 272 *
mbed_official 76:aeb1df146756 273 @verbatim
mbed_official 76:aeb1df146756 274 ===============================================================================
mbed_official 76:aeb1df146756 275 ##### GPIO Read and Write #####
mbed_official 76:aeb1df146756 276 ===============================================================================
mbed_official 76:aeb1df146756 277
mbed_official 76:aeb1df146756 278 @endverbatim
mbed_official 76:aeb1df146756 279 * @{
mbed_official 76:aeb1df146756 280 */
mbed_official 76:aeb1df146756 281
mbed_official 76:aeb1df146756 282 /**
mbed_official 76:aeb1df146756 283 * @brief Reads the specified input port pin.
mbed_official 76:aeb1df146756 284 * @param GPIOx: where x can be (A, B, C, D, E or F) to select the GPIO peripheral.
mbed_official 76:aeb1df146756 285 * @note GPIOE is available only for STM32F072.
mbed_official 76:aeb1df146756 286 * @note GPIOD is not available for STM32F031.
mbed_official 76:aeb1df146756 287 * @param GPIO_Pin: specifies the port bit to read.
mbed_official 76:aeb1df146756 288 * @note This parameter can be GPIO_Pin_x where x can be:
mbed_official 76:aeb1df146756 289 * For STM32F051 and STM32F030: (0..15) for GPIOA, GPIOB, GPIOC, (2) for GPIOD and (0..1, 4..7) for GIIOF.
mbed_official 76:aeb1df146756 290 * For STM32F072: (0..15) for GPIOA, GPIOB, GPIOC, GPIOD, GPIOE, (0..10) for GPIOF.
mbed_official 76:aeb1df146756 291 * For STM32F031: (0..15) for GPIOA, GPIOB, (13..15) for GPIOC and (0..1, 6..7) for GPIOF.
mbed_official 76:aeb1df146756 292 * @retval The input port pin value.
mbed_official 76:aeb1df146756 293 */
mbed_official 76:aeb1df146756 294 uint8_t GPIO_ReadInputDataBit(GPIO_TypeDef* GPIOx, uint16_t GPIO_Pin)
mbed_official 76:aeb1df146756 295 {
mbed_official 76:aeb1df146756 296 uint8_t bitstatus = 0x00;
mbed_official 76:aeb1df146756 297
mbed_official 76:aeb1df146756 298 /* Check the parameters */
mbed_official 76:aeb1df146756 299 assert_param(IS_GPIO_ALL_PERIPH(GPIOx));
mbed_official 76:aeb1df146756 300 assert_param(IS_GET_GPIO_PIN(GPIO_Pin));
mbed_official 76:aeb1df146756 301
mbed_official 76:aeb1df146756 302 if ((GPIOx->IDR & GPIO_Pin) != (uint32_t)Bit_RESET)
mbed_official 76:aeb1df146756 303 {
mbed_official 76:aeb1df146756 304 bitstatus = (uint8_t)Bit_SET;
mbed_official 76:aeb1df146756 305 }
mbed_official 76:aeb1df146756 306 else
mbed_official 76:aeb1df146756 307 {
mbed_official 76:aeb1df146756 308 bitstatus = (uint8_t)Bit_RESET;
mbed_official 76:aeb1df146756 309 }
mbed_official 76:aeb1df146756 310 return bitstatus;
mbed_official 76:aeb1df146756 311 }
mbed_official 76:aeb1df146756 312
mbed_official 76:aeb1df146756 313 /**
mbed_official 76:aeb1df146756 314 * @brief Reads the specified input port pin.
mbed_official 76:aeb1df146756 315 * @param GPIOx: where x can be (A, B, C, D, E or F) to select the GPIO peripheral.
mbed_official 76:aeb1df146756 316 * @note GPIOE is available only for STM32F072.
mbed_official 76:aeb1df146756 317 * @note GPIOD is not available for STM32F031.
mbed_official 76:aeb1df146756 318 * @retval The input port pin value.
mbed_official 76:aeb1df146756 319 */
mbed_official 76:aeb1df146756 320 uint16_t GPIO_ReadInputData(GPIO_TypeDef* GPIOx)
mbed_official 76:aeb1df146756 321 {
mbed_official 76:aeb1df146756 322 /* Check the parameters */
mbed_official 76:aeb1df146756 323 assert_param(IS_GPIO_ALL_PERIPH(GPIOx));
mbed_official 76:aeb1df146756 324
mbed_official 76:aeb1df146756 325 return ((uint16_t)GPIOx->IDR);
mbed_official 76:aeb1df146756 326 }
mbed_official 76:aeb1df146756 327
mbed_official 76:aeb1df146756 328 /**
mbed_official 76:aeb1df146756 329 * @brief Reads the specified output data port bit.
mbed_official 76:aeb1df146756 330 * @param GPIOx: where x can be (A, B, C, D, E or F) to select the GPIO peripheral.
mbed_official 76:aeb1df146756 331 * @note GPIOE is available only for STM32F072.
mbed_official 76:aeb1df146756 332 * @note GPIOD is not available for STM32F031.
mbed_official 76:aeb1df146756 333 * @param GPIO_Pin: Specifies the port bit to read.
mbed_official 76:aeb1df146756 334 * @note This parameter can be GPIO_Pin_x where x can be:
mbed_official 76:aeb1df146756 335 * For STM32F051 and STM32F030: (0..15) for GPIOA, GPIOB, GPIOC, (2) for GPIOD and (0..1, 4..7) for GIIOF.
mbed_official 76:aeb1df146756 336 * For STM32F072: (0..15) for GPIOA, GPIOB, GPIOC, GPIOD, GPIOE, (0..10) for GPIOF.
mbed_official 76:aeb1df146756 337 * For STM32F031: (0..15) for GPIOA, GPIOB, (13..15) for GPIOC and (0..1, 6..7) for GPIOF.
mbed_official 76:aeb1df146756 338 * @retval The output port pin value.
mbed_official 76:aeb1df146756 339 */
mbed_official 76:aeb1df146756 340 uint8_t GPIO_ReadOutputDataBit(GPIO_TypeDef* GPIOx, uint16_t GPIO_Pin)
mbed_official 76:aeb1df146756 341 {
mbed_official 76:aeb1df146756 342 uint8_t bitstatus = 0x00;
mbed_official 76:aeb1df146756 343
mbed_official 76:aeb1df146756 344 /* Check the parameters */
mbed_official 76:aeb1df146756 345 assert_param(IS_GPIO_ALL_PERIPH(GPIOx));
mbed_official 76:aeb1df146756 346 assert_param(IS_GET_GPIO_PIN(GPIO_Pin));
mbed_official 76:aeb1df146756 347
mbed_official 76:aeb1df146756 348 if ((GPIOx->ODR & GPIO_Pin) != (uint32_t)Bit_RESET)
mbed_official 76:aeb1df146756 349 {
mbed_official 76:aeb1df146756 350 bitstatus = (uint8_t)Bit_SET;
mbed_official 76:aeb1df146756 351 }
mbed_official 76:aeb1df146756 352 else
mbed_official 76:aeb1df146756 353 {
mbed_official 76:aeb1df146756 354 bitstatus = (uint8_t)Bit_RESET;
mbed_official 76:aeb1df146756 355 }
mbed_official 76:aeb1df146756 356 return bitstatus;
mbed_official 76:aeb1df146756 357 }
mbed_official 76:aeb1df146756 358
mbed_official 76:aeb1df146756 359 /**
mbed_official 76:aeb1df146756 360 * @brief Reads the specified GPIO output data port.
mbed_official 76:aeb1df146756 361 * @param GPIOx: where x can be (A, B, C, D, E or F) to select the GPIO peripheral.
mbed_official 76:aeb1df146756 362 * @note GPIOE is available only for STM32F072.
mbed_official 76:aeb1df146756 363 * @note GPIOD is not available for STM32F031.
mbed_official 76:aeb1df146756 364 * @retval GPIO output data port value.
mbed_official 76:aeb1df146756 365 */
mbed_official 76:aeb1df146756 366 uint16_t GPIO_ReadOutputData(GPIO_TypeDef* GPIOx)
mbed_official 76:aeb1df146756 367 {
mbed_official 76:aeb1df146756 368 /* Check the parameters */
mbed_official 76:aeb1df146756 369 assert_param(IS_GPIO_ALL_PERIPH(GPIOx));
mbed_official 76:aeb1df146756 370
mbed_official 76:aeb1df146756 371 return ((uint16_t)GPIOx->ODR);
mbed_official 76:aeb1df146756 372 }
mbed_official 76:aeb1df146756 373
mbed_official 76:aeb1df146756 374 /**
mbed_official 76:aeb1df146756 375 * @brief Sets the selected data port bits.
mbed_official 76:aeb1df146756 376 * @param GPIOx: where x can be (A, B, C, D, E or F) to select the GPIO peripheral.
mbed_official 76:aeb1df146756 377 * @note GPIOE is available only for STM32F072.
mbed_official 76:aeb1df146756 378 * @note GPIOD is not available for STM32F031.
mbed_official 76:aeb1df146756 379 * @param GPIO_Pin: specifies the port bits to be written.
mbed_official 76:aeb1df146756 380 * @note This parameter can be GPIO_Pin_x where x can be:
mbed_official 76:aeb1df146756 381 * For STM32F051 and STM32F030: (0..15) for GPIOA, GPIOB, GPIOC, (2) for GPIOD and (0..1, 4..7) for GIIOF.
mbed_official 76:aeb1df146756 382 * For STM32F072: (0..15) for GPIOA, GPIOB, GPIOC, GPIOD, GPIOE, (0..10) for GPIOF.
mbed_official 76:aeb1df146756 383 * For STM32F031: (0..15) for GPIOA, GPIOB, (13..15) for GPIOC and (0..1, 6..7) for GPIOF.
mbed_official 76:aeb1df146756 384 * @retval None
mbed_official 76:aeb1df146756 385 */
mbed_official 76:aeb1df146756 386 void GPIO_SetBits(GPIO_TypeDef* GPIOx, uint16_t GPIO_Pin)
mbed_official 76:aeb1df146756 387 {
mbed_official 76:aeb1df146756 388 /* Check the parameters */
mbed_official 76:aeb1df146756 389 assert_param(IS_GPIO_ALL_PERIPH(GPIOx));
mbed_official 76:aeb1df146756 390 assert_param(IS_GPIO_PIN(GPIO_Pin));
mbed_official 76:aeb1df146756 391
mbed_official 76:aeb1df146756 392 GPIOx->BSRR = GPIO_Pin;
mbed_official 76:aeb1df146756 393 }
mbed_official 76:aeb1df146756 394
mbed_official 76:aeb1df146756 395 /**
mbed_official 76:aeb1df146756 396 * @brief Clears the selected data port bits.
mbed_official 76:aeb1df146756 397 * @param GPIOx: where x can be (A, B, C, D, E or F) to select the GPIO peripheral.
mbed_official 76:aeb1df146756 398 * @note GPIOE is available only for STM32F072.
mbed_official 76:aeb1df146756 399 * @note GPIOD is not available for STM32F031.
mbed_official 76:aeb1df146756 400 * @param GPIO_Pin: specifies the port bits to be written.
mbed_official 76:aeb1df146756 401 * @note This parameter can be GPIO_Pin_x where x can be:
mbed_official 76:aeb1df146756 402 * For STM32F051 and STM32F030: (0..15) for GPIOA, GPIOB, GPIOC, (2) for GPIOD and (0..1, 4..7) for GIIOF.
mbed_official 76:aeb1df146756 403 * For STM32F072: (0..15) for GPIOA, GPIOB, GPIOC, GPIOD, GPIOE, (0..10) for GPIOF.
mbed_official 76:aeb1df146756 404 * For STM32F031: (0..15) for GPIOA, GPIOB, (13..15) for GPIOC and (0..1, 6..7) for GPIOF.
mbed_official 76:aeb1df146756 405 * @retval None
mbed_official 76:aeb1df146756 406 */
mbed_official 76:aeb1df146756 407 void GPIO_ResetBits(GPIO_TypeDef* GPIOx, uint16_t GPIO_Pin)
mbed_official 76:aeb1df146756 408 {
mbed_official 76:aeb1df146756 409 /* Check the parameters */
mbed_official 76:aeb1df146756 410 assert_param(IS_GPIO_ALL_PERIPH(GPIOx));
mbed_official 76:aeb1df146756 411 assert_param(IS_GPIO_PIN(GPIO_Pin));
mbed_official 76:aeb1df146756 412
mbed_official 76:aeb1df146756 413 GPIOx->BRR = GPIO_Pin;
mbed_official 76:aeb1df146756 414 }
mbed_official 76:aeb1df146756 415
mbed_official 76:aeb1df146756 416 /**
mbed_official 76:aeb1df146756 417 * @brief Sets or clears the selected data port bit.
mbed_official 76:aeb1df146756 418 * @param GPIOx: where x can be (A, B, C, D, E or F) to select the GPIO peripheral.
mbed_official 76:aeb1df146756 419 * @note GPIOE is available only for STM32F072.
mbed_official 76:aeb1df146756 420 * @note GPIOD is not available for STM32F031.
mbed_official 76:aeb1df146756 421 * @param GPIO_Pin: specifies the port bit to be written.
mbed_official 76:aeb1df146756 422 * @param BitVal: specifies the value to be written to the selected bit.
mbed_official 76:aeb1df146756 423 * This parameter can be one of the BitAction enumeration values:
mbed_official 76:aeb1df146756 424 * @arg Bit_RESET: to clear the port pin
mbed_official 76:aeb1df146756 425 * @arg Bit_SET: to set the port pin
mbed_official 76:aeb1df146756 426 * @note This parameter can be GPIO_Pin_x where x can be:
mbed_official 76:aeb1df146756 427 * For STM32F051 and STM32F030: (0..15) for GPIOA, GPIOB, GPIOC, (2) for GPIOD and (0..1, 4..7) for GIIOF.
mbed_official 76:aeb1df146756 428 * For STM32F072: (0..15) for GPIOA, GPIOB, GPIOC, GPIOD, GPIOE, (0..10) for GPIOF.
mbed_official 76:aeb1df146756 429 * For STM32F031: (0..15) for GPIOA, GPIOB, (13..15) for GPIOC and (0..1, 6..7) for GPIOF.
mbed_official 76:aeb1df146756 430 * @retval None
mbed_official 76:aeb1df146756 431 */
mbed_official 76:aeb1df146756 432 void GPIO_WriteBit(GPIO_TypeDef* GPIOx, uint16_t GPIO_Pin, BitAction BitVal)
mbed_official 76:aeb1df146756 433 {
mbed_official 76:aeb1df146756 434 /* Check the parameters */
mbed_official 76:aeb1df146756 435 assert_param(IS_GPIO_ALL_PERIPH(GPIOx));
mbed_official 76:aeb1df146756 436 assert_param(IS_GET_GPIO_PIN(GPIO_Pin));
mbed_official 76:aeb1df146756 437 assert_param(IS_GPIO_BIT_ACTION(BitVal));
mbed_official 76:aeb1df146756 438
mbed_official 76:aeb1df146756 439 if (BitVal != Bit_RESET)
mbed_official 76:aeb1df146756 440 {
mbed_official 76:aeb1df146756 441 GPIOx->BSRR = GPIO_Pin;
mbed_official 76:aeb1df146756 442 }
mbed_official 76:aeb1df146756 443 else
mbed_official 76:aeb1df146756 444 {
mbed_official 76:aeb1df146756 445 GPIOx->BRR = GPIO_Pin ;
mbed_official 76:aeb1df146756 446 }
mbed_official 76:aeb1df146756 447 }
mbed_official 76:aeb1df146756 448
mbed_official 76:aeb1df146756 449 /**
mbed_official 76:aeb1df146756 450 * @brief Writes data to the specified GPIO data port.
mbed_official 76:aeb1df146756 451 * @param GPIOx: where x can be (A, B, C, D, E or F) to select the GPIO peripheral.
mbed_official 76:aeb1df146756 452 * @note GPIOE is available only for STM32F072.
mbed_official 76:aeb1df146756 453 * @note GPIOD is not available for STM32F031.
mbed_official 76:aeb1df146756 454 * @param PortVal: specifies the value to be written to the port output data register.
mbed_official 76:aeb1df146756 455 * @retval None
mbed_official 76:aeb1df146756 456 */
mbed_official 76:aeb1df146756 457 void GPIO_Write(GPIO_TypeDef* GPIOx, uint16_t PortVal)
mbed_official 76:aeb1df146756 458 {
mbed_official 76:aeb1df146756 459 /* Check the parameters */
mbed_official 76:aeb1df146756 460 assert_param(IS_GPIO_ALL_PERIPH(GPIOx));
mbed_official 76:aeb1df146756 461
mbed_official 76:aeb1df146756 462 GPIOx->ODR = PortVal;
mbed_official 76:aeb1df146756 463 }
mbed_official 76:aeb1df146756 464
mbed_official 76:aeb1df146756 465 /**
mbed_official 76:aeb1df146756 466 * @}
mbed_official 76:aeb1df146756 467 */
mbed_official 76:aeb1df146756 468
mbed_official 76:aeb1df146756 469 /** @defgroup GPIO_Group3 GPIO Alternate functions configuration functions
mbed_official 76:aeb1df146756 470 * @brief GPIO Alternate functions configuration functions
mbed_official 76:aeb1df146756 471 *
mbed_official 76:aeb1df146756 472 @verbatim
mbed_official 76:aeb1df146756 473 ===============================================================================
mbed_official 76:aeb1df146756 474 ##### GPIO Alternate functions configuration functions #####
mbed_official 76:aeb1df146756 475 ===============================================================================
mbed_official 76:aeb1df146756 476
mbed_official 76:aeb1df146756 477 @endverbatim
mbed_official 76:aeb1df146756 478 * @{
mbed_official 76:aeb1df146756 479 */
mbed_official 76:aeb1df146756 480
mbed_official 76:aeb1df146756 481 /**
mbed_official 76:aeb1df146756 482 * @brief Writes data to the specified GPIO data port.
mbed_official 76:aeb1df146756 483 * @param GPIOx: where x can be (A, B, C, D, E or F) to select the GPIO peripheral.
mbed_official 76:aeb1df146756 484 * @note GPIOC, GPIOD, GPIOE and GPIOF are available only for STM32F072.
mbed_official 76:aeb1df146756 485 * @param GPIO_PinSource: specifies the pin for the Alternate function.
mbed_official 76:aeb1df146756 486 * This parameter can be GPIO_PinSourcex where x can be (0..15) for GPIOA, GPIOB, GPIOD, GPIOE
mbed_official 76:aeb1df146756 487 * and (0..12) for GPIOC and (0, 2..5, 9..10) for GPIOF.
mbed_official 76:aeb1df146756 488 * @param GPIO_AF: selects the pin to used as Alternate function.
mbed_official 76:aeb1df146756 489 * This parameter can be one of the following value:
mbed_official 76:aeb1df146756 490 * @arg GPIO_AF_0: WKUP, EVENTOUT, TIM15, SPI1, TIM17, MCO, SWDAT, SWCLK,
mbed_official 76:aeb1df146756 491 * TIM14, BOOT, USART1, CEC, IR_OUT, SPI2, TIM3, USART4,
mbed_official 76:aeb1df146756 492 * CAN, USART2, CRS, TIM16, TIM1, TS
mbed_official 76:aeb1df146756 493 * @arg GPIO_AF_1: USART2, CEC, TIM3, USART1, USART2, EVENTOUT, I2C1,
mbed_official 76:aeb1df146756 494 * I2C2, TIM15, SPI2, USART3, TS, SPI1
mbed_official 76:aeb1df146756 495 * @arg GPIO_AF_2: TIM2, TIM1, EVENTOUT, TIM16, TIM17, USB
mbed_official 76:aeb1df146756 496 * @arg GPIO_AF_3: TS, I2C1, TIM15, EVENTOUT
mbed_official 76:aeb1df146756 497 * @arg GPIO_AF_4: TIM14, USART4, USART3, CRS, CAN
mbed_official 76:aeb1df146756 498 * @arg GPIO_AF_5: TIM16, TIM17, TIM15, SPI2, I2C2
mbed_official 76:aeb1df146756 499 * @arg GPIO_AF_6: EVENTOUT
mbed_official 76:aeb1df146756 500 * @arg GPIO_AF_7: COMP1 OUT, COMP2 OUT
mbed_official 76:aeb1df146756 501 * @note The pin should already been configured in Alternate Function mode(AF)
mbed_official 76:aeb1df146756 502 * using GPIO_InitStruct->GPIO_Mode = GPIO_Mode_AF
mbed_official 76:aeb1df146756 503 * @note Refer to the Alternate function mapping table in the device datasheet
mbed_official 76:aeb1df146756 504 * for the detailed mapping of the system and peripherals'alternate
mbed_official 76:aeb1df146756 505 * function I/O pins.
mbed_official 76:aeb1df146756 506 * @retval None
mbed_official 76:aeb1df146756 507 */
mbed_official 76:aeb1df146756 508 void GPIO_PinAFConfig(GPIO_TypeDef* GPIOx, uint16_t GPIO_PinSource, uint8_t GPIO_AF)
mbed_official 76:aeb1df146756 509 {
mbed_official 76:aeb1df146756 510 uint32_t temp = 0x00;
mbed_official 76:aeb1df146756 511 uint32_t temp_2 = 0x00;
mbed_official 76:aeb1df146756 512
mbed_official 76:aeb1df146756 513 /* Check the parameters */
mbed_official 76:aeb1df146756 514 assert_param(IS_GPIO_ALL_PERIPH(GPIOx));
mbed_official 76:aeb1df146756 515 assert_param(IS_GPIO_PIN_SOURCE(GPIO_PinSource));
mbed_official 76:aeb1df146756 516 assert_param(IS_GPIO_AF(GPIO_AF));
mbed_official 76:aeb1df146756 517
mbed_official 76:aeb1df146756 518 temp = ((uint32_t)(GPIO_AF) << ((uint32_t)((uint32_t)GPIO_PinSource & (uint32_t)0x07) * 4));
mbed_official 76:aeb1df146756 519 GPIOx->AFR[GPIO_PinSource >> 0x03] &= ~((uint32_t)0xF << ((uint32_t)((uint32_t)GPIO_PinSource & (uint32_t)0x07) * 4));
mbed_official 76:aeb1df146756 520 temp_2 = GPIOx->AFR[GPIO_PinSource >> 0x03] | temp;
mbed_official 76:aeb1df146756 521 GPIOx->AFR[GPIO_PinSource >> 0x03] = temp_2;
mbed_official 76:aeb1df146756 522 }
mbed_official 76:aeb1df146756 523
mbed_official 76:aeb1df146756 524 /**
mbed_official 76:aeb1df146756 525 * @}
mbed_official 76:aeb1df146756 526 */
mbed_official 76:aeb1df146756 527
mbed_official 76:aeb1df146756 528 /**
mbed_official 76:aeb1df146756 529 * @}
mbed_official 76:aeb1df146756 530 */
mbed_official 76:aeb1df146756 531
mbed_official 76:aeb1df146756 532 /**
mbed_official 76:aeb1df146756 533 * @}
mbed_official 76:aeb1df146756 534 */
mbed_official 76:aeb1df146756 535
mbed_official 76:aeb1df146756 536 /**
mbed_official 76:aeb1df146756 537 * @}
mbed_official 76:aeb1df146756 538 */
mbed_official 76:aeb1df146756 539
mbed_official 76:aeb1df146756 540 /************************ (C) COPYRIGHT STMicroelectronics *****END OF FILE****/