424 lines
14 KiB
C
424 lines
14 KiB
C
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/**
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******************************************************************************
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* @file ft32f0xx_gpio.c
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* @author FMD AE
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* @brief This file provides firmware functions to manage the following
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* functionalities of the GPIO peripheral:
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* + Initialization and Configuration functions
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* + GPIO Read and Write functions
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* + GPIO Alternate functions configuration functions
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* @version V1.0.0
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* @data 2021-07-01
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******************************************************************************
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*/
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/* Includes ------------------------------------------------------------------*/
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#include "ft32f0xx_gpio.h"
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#include "ft32f0xx_rcc.h"
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/**
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* @brief Deinitializes the GPIOx peripheral registers to their default reset
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* values.
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* @param GPIOx: where x can be (A, B, C, D, E or F) to select the GPIO peripheral.
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* @retval None
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*/
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void GPIO_DeInit(GPIO_TypeDef* GPIOx)
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{
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/* Check the parameters */
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assert_param(IS_GPIO_ALL_PERIPH(GPIOx));
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if(GPIOx == GPIOA)
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{
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RCC_AHBPeriphResetCmd(RCC_AHBPeriph_GPIOA, ENABLE);
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RCC_AHBPeriphResetCmd(RCC_AHBPeriph_GPIOA, DISABLE);
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}
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else if(GPIOx == GPIOB)
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{
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RCC_AHBPeriphResetCmd(RCC_AHBPeriph_GPIOB, ENABLE);
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RCC_AHBPeriphResetCmd(RCC_AHBPeriph_GPIOB, DISABLE);
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}
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else if(GPIOx == GPIOC)
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{
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RCC_AHBPeriphResetCmd(RCC_AHBPeriph_GPIOC, ENABLE);
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RCC_AHBPeriphResetCmd(RCC_AHBPeriph_GPIOC, DISABLE);
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}
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else if(GPIOx == GPIOD)
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{
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RCC_AHBPeriphResetCmd(RCC_AHBPeriph_GPIOD, ENABLE);
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RCC_AHBPeriphResetCmd(RCC_AHBPeriph_GPIOD, DISABLE);
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}
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// else if(GPIOx == GPIOE)
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// {
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// RCC_AHBPeriphResetCmd(RCC_AHBPeriph_GPIOE, ENABLE);
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// RCC_AHBPeriphResetCmd(RCC_AHBPeriph_GPIOE, DISABLE);
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// }
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else
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{
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if(GPIOx == GPIOF)
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{
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RCC_AHBPeriphResetCmd(RCC_AHBPeriph_GPIOF, ENABLE);
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RCC_AHBPeriphResetCmd(RCC_AHBPeriph_GPIOF, DISABLE);
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}
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}
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}
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/**
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* @brief Initializes the GPIOx peripheral according to the specified
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* parameters in the GPIO_InitStruct.
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* @param GPIOx: where x can be (A, B, C, D, E or F) to select the GPIO peripheral.
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* @param GPIO_InitStruct: pointer to a GPIO_InitTypeDef structure that contains
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* the configuration information for the specified GPIO peripheral.
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* @retval None
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*/
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void GPIO_Init(GPIO_TypeDef* GPIOx, GPIO_InitTypeDef* GPIO_InitStruct)
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{
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uint32_t pinpos = 0x00, pos = 0x00 , currentpin = 0x00;
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/* Check the parameters */
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assert_param(IS_GPIO_ALL_PERIPH(GPIOx));
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assert_param(IS_GPIO_PIN(GPIO_InitStruct->GPIO_Pin));
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assert_param(IS_GPIO_MODE(GPIO_InitStruct->GPIO_Mode));
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assert_param(IS_GPIO_PUPD(GPIO_InitStruct->GPIO_PuPd));
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/*-------------------------- Configure the port pins -----------------------*/
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/*-- GPIO Mode Configuration --*/
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for (pinpos = 0x00; pinpos < 0x10; pinpos++)
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{
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pos = ((uint32_t)0x01) << pinpos;
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/* Get the port pins position */
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currentpin = (GPIO_InitStruct->GPIO_Pin) & pos;
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if (currentpin == pos)
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{
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if ((GPIO_InitStruct->GPIO_Mode == GPIO_Mode_OUT) || (GPIO_InitStruct->GPIO_Mode == GPIO_Mode_AF))
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{
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/* Check Speed mode parameters */
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assert_param(IS_GPIO_SPEED(GPIO_InitStruct->GPIO_Speed));
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/* Speed mode configuration */
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GPIOx->OSPEEDR &= ~(GPIO_OSPEEDER_OSPEEDR0 << (pinpos * 2));
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GPIOx->OSPEEDR |= ((uint32_t)(GPIO_InitStruct->GPIO_Speed) << (pinpos * 2));
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/* Check Output mode parameters */
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assert_param(IS_GPIO_OTYPE(GPIO_InitStruct->GPIO_OType));
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/* Output mode configuration */
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GPIOx->OTYPER &= ~((GPIO_OTYPER_OT_0) << ((uint16_t)pinpos));
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GPIOx->OTYPER |= (uint16_t)(((uint16_t)GPIO_InitStruct->GPIO_OType) << ((uint16_t)pinpos));
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}
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GPIOx->MODER &= ~(GPIO_MODER_MODER0 << (pinpos * 2));
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GPIOx->MODER |= (((uint32_t)GPIO_InitStruct->GPIO_Mode) << (pinpos * 2));
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/* Pull-up Pull down resistor configuration */
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GPIOx->PUPDR &= ~(GPIO_PUPDR_PUPDR0 << ((uint16_t)pinpos * 2));
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GPIOx->PUPDR |= (((uint32_t)GPIO_InitStruct->GPIO_PuPd) << (pinpos * 2));
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}
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}
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}
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/**
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* @brief Fills each GPIO_InitStruct member with its default value.
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* @param GPIO_InitStruct: pointer to a GPIO_InitTypeDef structure which will
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* be initialized.
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* @retval None
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*/
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void GPIO_StructInit(GPIO_InitTypeDef* GPIO_InitStruct)
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{
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/* Reset GPIO init structure parameters values */
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GPIO_InitStruct->GPIO_Pin = GPIO_Pin_All;
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GPIO_InitStruct->GPIO_Mode = GPIO_Mode_IN;
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GPIO_InitStruct->GPIO_Speed = GPIO_Speed_Level_2;
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GPIO_InitStruct->GPIO_OType = GPIO_OType_PP;
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GPIO_InitStruct->GPIO_PuPd = GPIO_PuPd_NOPULL;
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}
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/**
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* @brief Locks GPIO Pins configuration registers.
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* @note The locked registers are GPIOx_MODER, GPIOx_OTYPER, GPIOx_OSPEEDR,
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* GPIOx_PUPDR, GPIOx_AFRL and GPIOx_AFRH.
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* @note The configuration of the locked GPIO pins can no longer be modified
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* until the next device reset.
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* @param GPIOx: where x can be (A or B) to select the GPIO peripheral.
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* @param GPIO_Pin: specifies the port bit to be written.
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* This parameter can be any combination of GPIO_Pin_x where x can be (0..15).
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* @retval None
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*/
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void GPIO_PinLockConfig(GPIO_TypeDef* GPIOx, uint16_t GPIO_Pin)
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{
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__IO uint32_t tmp = 0x00010000;
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/* Check the parameters */
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assert_param(IS_GPIO_LIST_PERIPH(GPIOx));
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assert_param(IS_GPIO_PIN(GPIO_Pin));
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tmp |= GPIO_Pin;
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/* Set LCKK bit */
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GPIOx->LCKR = tmp;
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/* Reset LCKK bit */
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GPIOx->LCKR = GPIO_Pin;
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/* Set LCKK bit */
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GPIOx->LCKR = tmp;
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/* Read LCKK bit */
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tmp = GPIOx->LCKR;
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/* Read LCKK bit */
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tmp = GPIOx->LCKR;
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}
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/**
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* @}
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*/
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/**
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* @brief Reads the specified input port pin.
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* @param GPIOx: where x can be (A, B, C, D, E or F) to select the GPIO peripheral.
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* @param GPIO_Pin: specifies the port bit to read.
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* @note This parameter can be GPIO_Pin_x where x can be:
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* (0..15) for GPIOA, GPIOB, GPIOC, GPIOD, GPIOE, (0..10) for GPIOF.
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* @retval The input port pin value.
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*/
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uint8_t GPIO_ReadInputDataBit(GPIO_TypeDef* GPIOx, uint16_t GPIO_Pin)
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{
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uint8_t bitstatus = 0x00;
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/* Check the parameters */
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assert_param(IS_GPIO_ALL_PERIPH(GPIOx));
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assert_param(IS_GET_GPIO_PIN(GPIO_Pin));
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if ((GPIOx->IDR & GPIO_Pin) != (uint32_t)Bit_RESET)
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{
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bitstatus = (uint8_t)Bit_SET;
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}
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else
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{
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bitstatus = (uint8_t)Bit_RESET;
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}
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return bitstatus;
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}
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/**
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* @brief Reads the specified input port pin.
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* @param GPIOx: where x can be (A, B, C, D, E or F) to select the GPIO peripheral.
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* @retval The input port pin value.
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*/
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uint16_t GPIO_ReadInputData(GPIO_TypeDef* GPIOx)
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{
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/* Check the parameters */
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assert_param(IS_GPIO_ALL_PERIPH(GPIOx));
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return ((uint16_t)GPIOx->IDR);
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}
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/**
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* @brief Reads the specified output data port bit.
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* @param GPIOx: where x can be (A, B, C, D, E or F) to select the GPIO peripheral.
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* @param GPIO_Pin: Specifies the port bit to read.
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* @note This parameter can be GPIO_Pin_x where x can be:
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* (0..15) for GPIOA, GPIOB, GPIOC, GPIOD, GPIOE, (0..10) for GPIOF.
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* @retval The output port pin value.
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*/
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uint8_t GPIO_ReadOutputDataBit(GPIO_TypeDef* GPIOx, uint16_t GPIO_Pin)
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{
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uint8_t bitstatus = 0x00;
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/* Check the parameters */
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assert_param(IS_GPIO_ALL_PERIPH(GPIOx));
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assert_param(IS_GET_GPIO_PIN(GPIO_Pin));
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if ((GPIOx->ODR & GPIO_Pin) != (uint32_t)Bit_RESET)
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{
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bitstatus = (uint8_t)Bit_SET;
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}
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else
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{
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bitstatus = (uint8_t)Bit_RESET;
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}
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return bitstatus;
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}
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/**
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* @brief Reads the specified GPIO output data port.
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* @param GPIOx: where x can be (A, B, C, D, E or F) to select the GPIO peripheral.
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* @retval GPIO output data port value.
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*/
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uint16_t GPIO_ReadOutputData(GPIO_TypeDef* GPIOx)
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{
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/* Check the parameters */
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assert_param(IS_GPIO_ALL_PERIPH(GPIOx));
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return ((uint16_t)GPIOx->ODR);
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}
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/**
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* @brief Sets the selected data port bits.
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* @param GPIOx: where x can be (A, B, C, D, E or F) to select the GPIO peripheral.
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* @param GPIO_Pin: specifies the port bits to be written.
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* @note This parameter can be GPIO_Pin_x where x can be:
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* (0..15) for GPIOA, GPIOB, GPIOC, GPIOD, GPIOE, (0..10) for GPIOF.
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* @retval None
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*/
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void GPIO_SetBits(GPIO_TypeDef* GPIOx, uint16_t GPIO_Pin)
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{
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/* Check the parameters */
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assert_param(IS_GPIO_ALL_PERIPH(GPIOx));
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assert_param(IS_GPIO_PIN(GPIO_Pin));
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GPIOx->BSRR = GPIO_Pin;
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}
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/**
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* @brief Clears the selected data port bits.
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* @param GPIOx: where x can be (A, B, C, D, E or F) to select the GPIO peripheral.
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* @param GPIO_Pin: specifies the port bits to be written.
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* @note This parameter can be GPIO_Pin_x where x can be:
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* (0..15) for GPIOA, GPIOB, GPIOC, GPIOD, GPIOE, (0..10) for GPIOF.
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* @retval None
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*/
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void GPIO_ResetBits(GPIO_TypeDef* GPIOx, uint16_t GPIO_Pin)
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{
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/* Check the parameters */
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assert_param(IS_GPIO_ALL_PERIPH(GPIOx));
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assert_param(IS_GPIO_PIN(GPIO_Pin));
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GPIOx->BRR = GPIO_Pin;
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}
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/**
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* @brief Sets or clears the selected data port bit.
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* @param GPIOx: where x can be (A, B, C, D, E or F) to select the GPIO peripheral.
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* @param GPIO_Pin: specifies the port bit to be written.
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* @param BitVal: specifies the value to be written to the selected bit.
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* This parameter can be one of the BitAction enumeration values:
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* @arg Bit_RESET: to clear the port pin
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* @arg Bit_SET: to set the port pin
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* @note This parameter can be GPIO_Pin_x where x can be:
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* (0..15) for GPIOA, GPIOB, GPIOC, GPIOD, GPIOE, (0..10) for GPIOF.
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* @retval None
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*/
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void GPIO_WriteBit(GPIO_TypeDef* GPIOx, uint16_t GPIO_Pin, BitAction BitVal)
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{
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/* Check the parameters */
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assert_param(IS_GPIO_ALL_PERIPH(GPIOx));
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assert_param(IS_GET_GPIO_PIN(GPIO_Pin));
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assert_param(IS_GPIO_BIT_ACTION(BitVal));
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if (BitVal != Bit_RESET)
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{
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GPIOx->BSRR = GPIO_Pin;
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}
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else
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{
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GPIOx->BRR = GPIO_Pin ;
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}
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}
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/**
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* @brief Writes data to the specified GPIO data port.
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* @param GPIOx: where x can be (A, B, C, D, E or F) to select the GPIO peripheral.
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* @param PortVal: specifies the value to be written to the port output data register.
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* @retval None
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*/
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void GPIO_Write(GPIO_TypeDef* GPIOx, uint16_t PortVal)
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{
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/* Check the parameters */
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assert_param(IS_GPIO_ALL_PERIPH(GPIOx));
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GPIOx->ODR = PortVal;
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}
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/**
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* @}
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*/
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/**
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* @brief Writes data to the specified GPIO data port.
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* @param GPIOx: where x can be (A, B, C, D, E or F) to select the GPIO peripheral.
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* @param GPIO_PinSource: specifies the pin for the Alternate function.
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* This parameter can be GPIO_PinSourcex where x can be (0..15) for GPIOA, GPIOB, GPIOD, GPIOE
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* and (0..12) for GPIOC and (0, 2..5, 9..10) for GPIOF.
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* @param GPIO_AF: selects the pin to used as Alternate function.
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* This parameter can be one of the following value:
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* @arg GPIO_AF_0: WKUP, EVENTOUT, TIM15, SPI1, TIM17, MCO, SWDAT, SWCLK,
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* TIM14, BOOT, USART1, CEC, IR_OUT, SPI2, TIM3, USART4,
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* CAN, USART2, CRS, TIM16, TIM1, TS, USART8
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* @arg GPIO_AF_1: USART2, CEC, TIM3, USART1, USART2, EVENTOUT, I2C1,
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* I2C2, TIM15, SPI2, USART3, TS, SPI1, USART7, USART8
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* USART5, USART4, USART6, I2C1
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* @arg GPIO_AF_2: TIM2, TIM1, EVENTOUT, TIM16, TIM17, USB, USART6, USART5,
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* USART8, USART7, USART6
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* @arg GPIO_AF_3: TS, I2C1, TIM15, EVENTOUT
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* @arg GPIO_AF_4: TIM14, USART4, USART3, CRS, CAN, I2C1, USART5
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* @arg GPIO_AF_5: TIM16, TIM17, TIM15, SPI2, I2C2, USART6, MCO
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* @arg GPIO_AF_6: EVENTOUT
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* @arg GPIO_AF_7: COMP1 OUT, COMP2 OUT
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* @note The pin should already been configured in Alternate Function mode(AF)
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* using GPIO_InitStruct->GPIO_Mode = GPIO_Mode_AF
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* @note Refer to the Alternate function mapping table in the device datasheet
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* for the detailed mapping of the system and peripherals'alternate
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* function I/O pins.
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* @retval None
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*/
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void GPIO_PinAFConfig(GPIO_TypeDef* GPIOx, uint16_t GPIO_PinSource, uint8_t GPIO_AF)
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{
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uint32_t temp = 0x00;
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uint32_t temp_2 = 0x00;
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/* Check the parameters */
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assert_param(IS_GPIO_ALL_PERIPH(GPIOx));
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assert_param(IS_GPIO_PIN_SOURCE(GPIO_PinSource));
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assert_param(IS_GPIO_AF(GPIO_AF));
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temp = ((uint32_t)(GPIO_AF) << ((uint32_t)((uint32_t)GPIO_PinSource & (uint32_t)0x07) * 4));
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GPIOx->AFR[GPIO_PinSource >> 0x03] &= ~((uint32_t)0xF << ((uint32_t)((uint32_t)GPIO_PinSource & (uint32_t)0x07) * 4));
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temp_2 = GPIOx->AFR[GPIO_PinSource >> 0x03] | temp;
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GPIOx->AFR[GPIO_PinSource >> 0x03] = temp_2;
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}
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/**
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* @param GPIOx:GPIOA,GPIOB
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* GPIO_LEDMx:
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* GPIO_LEDM_0
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* GPIO_LEDM_1
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* GPIO_LEDM_3
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* GPIO_LEDM_4
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|
* GPIO_LEDM_5
|
||
|
* GPIO_LEDM_6
|
||
|
* GPIO_LEDM_7
|
||
|
* GPIO_LEDM_8
|
||
|
* GPIO_LEDM_9
|
||
|
* GPIO_LEDM_10
|
||
|
* GPIO_LEDM_13
|
||
|
* GPIO_LEDM_14
|
||
|
* GPIO_LEDM_15
|
||
|
*/
|
||
|
void GPIO_LedmConfig(GPIO_TypeDef* GPIOx, uint16_t GPIO_LEDMx)
|
||
|
{
|
||
|
/* Check the parameters */
|
||
|
assert_param(IS_GPIO_LIST_PERIPH(GPIOx));
|
||
|
assert_param(IS_GPIO_LEDM(GPIO_LEDMx));
|
||
|
|
||
|
GPIOx->LEDM |= (uint16_t)GPIO_LEDMx;
|
||
|
}
|
||
|
/**
|
||
|
* @}
|
||
|
*/
|
||
|
|
||
|
/**
|
||
|
* @}
|
||
|
*/
|
||
|
|
||
|
/**
|
||
|
* @}
|
||
|
*/
|
||
|
|
||
|
/**
|
||
|
* @}
|
||
|
*/
|
||
|
|
||
|
/************************ (C) COPYRIGHT FMD *****END OF FILE****/
|