508 lines
16 KiB
C
508 lines
16 KiB
C
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/********************************** (C) COPYRIGHT *******************************
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* File Name : ch32v00x_gpio.c
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* Author : WCH
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* Version : V1.0.0
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* Date : 2022/08/08
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* Description : This file provides all the GPIO firmware functions.
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*********************************************************************************
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* Copyright (c) 2021 Nanjing Qinheng Microelectronics Co., Ltd.
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* Attention: This software (modified or not) and binary are used for
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* microcontroller manufactured by Nanjing Qinheng Microelectronics.
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*******************************************************************************/
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#include <ch32v00x_gpio.h>
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#include <ch32v00x_rcc.h>
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/* MASK */
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#define LSB_MASK ((uint16_t)0xFFFF)
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#define DBGAFR_POSITION_MASK ((uint32_t)0x000F0000)
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#define DBGAFR_SDI_MASK ((uint32_t)0xF8FFFFFF)
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#define DBGAFR_LOCATION_MASK ((uint32_t)0x00200000)
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#define DBGAFR_NUMBITS_MASK ((uint32_t)0x00100000)
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/*********************************************************************
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* @fn GPIO_DeInit
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*
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* @brief Deinitializes the GPIOx peripheral registers to their default
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* reset values.
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*
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* @param GPIOx - where x can be (A..G) to select the GPIO peripheral.
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*
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* @return none
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*/
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void GPIO_DeInit(GPIO_TypeDef *GPIOx)
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{
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if(GPIOx == GPIOA)
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{
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RCC_APB2PeriphResetCmd(RCC_APB2Periph_GPIOA, ENABLE);
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RCC_APB2PeriphResetCmd(RCC_APB2Periph_GPIOA, DISABLE);
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}
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else if(GPIOx == GPIOC)
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{
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RCC_APB2PeriphResetCmd(RCC_APB2Periph_GPIOC, ENABLE);
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RCC_APB2PeriphResetCmd(RCC_APB2Periph_GPIOC, DISABLE);
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}
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else if(GPIOx == GPIOD)
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{
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RCC_APB2PeriphResetCmd(RCC_APB2Periph_GPIOD, ENABLE);
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RCC_APB2PeriphResetCmd(RCC_APB2Periph_GPIOD, DISABLE);
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}
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}
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/*********************************************************************
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* @fn GPIO_AFIODeInit
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*
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* @brief Deinitializes the Alternate Functions (remap, event control
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* and EXTI configuration) registers to their default reset values.
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*
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* @return none
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*/
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void GPIO_AFIODeInit(void)
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{
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RCC_APB2PeriphResetCmd(RCC_APB2Periph_AFIO, ENABLE);
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RCC_APB2PeriphResetCmd(RCC_APB2Periph_AFIO, DISABLE);
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}
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/*********************************************************************
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* @fn GPIO_Init
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*
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* @brief GPIOx - where x can be (A..G) to select the GPIO peripheral.
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*
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* @param GPIO_InitStruct - pointer to a GPIO_InitTypeDef structure that
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* contains the configuration information for the specified GPIO peripheral.
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*
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* @return 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 currentmode = 0x00, currentpin = 0x00, pinpos = 0x00, pos = 0x00;
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uint32_t tmpreg = 0x00, pinmask = 0x00;
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currentmode = ((uint32_t)GPIO_InitStruct->GPIO_Mode) & ((uint32_t)0x0F);
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if((((uint32_t)GPIO_InitStruct->GPIO_Mode) & ((uint32_t)0x10)) != 0x00)
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{
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currentmode |= (uint32_t)GPIO_InitStruct->GPIO_Speed;
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}
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if(((uint32_t)GPIO_InitStruct->GPIO_Pin & ((uint32_t)0x00FF)) != 0x00)
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{
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tmpreg = GPIOx->CFGLR;
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for(pinpos = 0x00; pinpos < 0x08; pinpos++)
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{
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pos = ((uint32_t)0x01) << pinpos;
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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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pos = pinpos << 2;
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pinmask = ((uint32_t)0x0F) << pos;
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tmpreg &= ~pinmask;
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tmpreg |= (currentmode << pos);
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if(GPIO_InitStruct->GPIO_Mode == GPIO_Mode_IPD)
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{
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GPIOx->BCR = (((uint32_t)0x01) << pinpos);
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}
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else
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{
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if(GPIO_InitStruct->GPIO_Mode == GPIO_Mode_IPU)
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{
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GPIOx->BSHR = (((uint32_t)0x01) << pinpos);
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}
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}
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}
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}
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GPIOx->CFGLR = tmpreg;
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}
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if(GPIO_InitStruct->GPIO_Pin > 0x00FF)
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{
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tmpreg = GPIOx->CFGHR;
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for(pinpos = 0x00; pinpos < 0x08; pinpos++)
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{
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pos = (((uint32_t)0x01) << (pinpos + 0x08));
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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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pos = pinpos << 2;
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pinmask = ((uint32_t)0x0F) << pos;
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tmpreg &= ~pinmask;
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tmpreg |= (currentmode << pos);
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if(GPIO_InitStruct->GPIO_Mode == GPIO_Mode_IPD)
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{
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GPIOx->BCR = (((uint32_t)0x01) << (pinpos + 0x08));
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}
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if(GPIO_InitStruct->GPIO_Mode == GPIO_Mode_IPU)
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{
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GPIOx->BSHR = (((uint32_t)0x01) << (pinpos + 0x08));
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}
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}
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}
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GPIOx->CFGHR = tmpreg;
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}
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}
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/*********************************************************************
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* @fn GPIO_StructInit
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*
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* @brief Fills each GPIO_InitStruct member with its default
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*
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* @param GPIO_InitStruct - pointer to a GPIO_InitTypeDef structure
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* which will be initialized.
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*
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* @return none
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*/
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void GPIO_StructInit(GPIO_InitTypeDef *GPIO_InitStruct)
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{
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GPIO_InitStruct->GPIO_Pin = GPIO_Pin_All;
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GPIO_InitStruct->GPIO_Speed = GPIO_Speed_2MHz;
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GPIO_InitStruct->GPIO_Mode = GPIO_Mode_IN_FLOATING;
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}
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/*********************************************************************
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* @fn GPIO_ReadInputDataBit
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*
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* @brief GPIOx - where x can be (A..G) to select the GPIO peripheral.
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*
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* @param GPIO_Pin - specifies the port bit to read.
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* This parameter can be GPIO_Pin_x where x can be (0..15).
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*
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* @return 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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if((GPIOx->INDR & 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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* @fn GPIO_ReadInputData
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*
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* @brief Reads the specified GPIO input data port.
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*
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* @param GPIOx: where x can be (A..G) to select the GPIO peripheral.
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*
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* @return 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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return ((uint16_t)GPIOx->INDR);
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}
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/*********************************************************************
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* @fn GPIO_ReadOutputDataBit
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*
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* @brief Reads the specified output data port bit.
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*
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* @param GPIOx - where x can be (A..G) to select the GPIO peripheral.
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* GPIO_Pin - specifies the port bit to read.
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* This parameter can be GPIO_Pin_x where x can be (0..15).
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*
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* @return none
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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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if((GPIOx->OUTDR & 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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* @fn GPIO_ReadOutputData
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*
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* @brief Reads the specified GPIO output data port.
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*
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* @param GPIOx - where x can be (A..G) to select the GPIO peripheral.
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*
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* @return GPIO output port pin value.
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*/
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uint16_t GPIO_ReadOutputData(GPIO_TypeDef *GPIOx)
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{
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return ((uint16_t)GPIOx->OUTDR);
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}
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/*********************************************************************
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* @fn GPIO_SetBits
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*
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* @brief Sets the selected data port bits.
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*
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* @param GPIOx - where x can be (A..G) to select the GPIO peripheral.
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* GPIO_Pin - specifies the port bits 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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*
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* @return 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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GPIOx->BSHR = GPIO_Pin;
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}
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/*********************************************************************
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* @fn GPIO_ResetBits
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*
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* @brief Clears the selected data port bits.
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*
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* @param GPIOx - where x can be (A..G) to select the GPIO peripheral.
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* GPIO_Pin - specifies the port bits 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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*
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* @return 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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GPIOx->BCR = GPIO_Pin;
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}
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/*********************************************************************
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* @fn GPIO_WriteBit
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*
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* @brief Sets or clears the selected data port bit.
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*
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* @param GPIO_Pin - specifies the port bit to be written.
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* This parameter can be one of GPIO_Pin_x where x can be (0..15).
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* BitVal - specifies the value to be written to the selected bit.
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* Bit_RESET - to clear the port pin.
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* Bit_SET - to set the port pin.
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*
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* @return 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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if(BitVal != Bit_RESET)
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{
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GPIOx->BSHR = GPIO_Pin;
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}
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else
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{
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GPIOx->BCR = GPIO_Pin;
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}
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}
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/*********************************************************************
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* @fn GPIO_Write
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*
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* @brief Writes data to the specified GPIO data port.
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*
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* @param GPIOx - where x can be (A..G) to select the GPIO peripheral.
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* PortVal - specifies the value to be written to the port output data register.
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*
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* @return 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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GPIOx->OUTDR = PortVal;
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}
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/*********************************************************************
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* @fn GPIO_PinLockConfig
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*
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* @brief Locks GPIO Pins configuration registers.
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*
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* @param GPIOx - where x can be (A..G) to select the GPIO peripheral.
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* 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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*
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* @return 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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uint32_t tmp = 0x00010000;
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tmp |= GPIO_Pin;
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GPIOx->LCKR = tmp;
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GPIOx->LCKR = GPIO_Pin;
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GPIOx->LCKR = tmp;
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tmp = GPIOx->LCKR;
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tmp = GPIOx->LCKR;
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}
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/*********************************************************************
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* @fn GPIO_PinRemapConfig
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*
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* @brief Changes the mapping of the specified pin.
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*
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* @param GPIO_Remap - selects the pin to remap.
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* GPIO_Remap_SPI1 - SPI1 Alternate Function mapping
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* GPIO_PartialRemap_I2C1 - I2C1 Partial Alternate Function mapping
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* GPIO_FullRemap_I2C1 - I2C1 Full Alternate Function mapping
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* GPIO_PartialRemap1_USART1 - USART1 Partial1 Alternate Function mapping
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* GPIO_PartialRemap2_USART1 - USART1 Partial2 Alternate Function mapping
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* GPIO_FullRemap_USART1 - USART1 Full Alternate Function mapping
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* GPIO_PartialRemap1_TIM1 - TIM1 Partial1 Alternate Function mapping
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* GPIO_PartialRemap2_TIM1 - TIM1 Partial2 Alternate Function mapping
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* GPIO_FullRemap_TIM1 - TIM1 Full Alternate Function mapping
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* GPIO_PartialRemap1_TIM2 - TIM2 Partial1 Alternate Function mapping
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* GPIO_PartialRemap2_TIM2 - TIM2 Partial2 Alternate Function mapping
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* GPIO_FullRemap_TIM2 - TIM2 Full Alternate Function mapping
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* GPIO_Remap_PA1_2 - PA1_2 Alternate Function mapping
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* GPIO_Remap_ADC1_ETRGINJ - ADC1 External Trigger Injected Conversion remapping
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* GPIO_Remap_ADC1_ETRGREG - ADC1 External Trigger Regular Conversion remapping
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* GPIO_Remap_LSI_CAL - LSI calibration Alternate Function mapping
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* GPIO_Remap_SDI_Disable - SDI Disabled
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* NewState - ENABLE or DISABLE.
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*
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* @return none
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*/
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void GPIO_PinRemapConfig(uint32_t GPIO_Remap, FunctionalState NewState)
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||
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|
{
|
||
|
|
uint32_t tmp = 0x00, tmp1 = 0x00, tmpreg = 0x00, tmpmask = 0x00;
|
||
|
|
|
||
|
|
tmpreg = AFIO->PCFR1;
|
||
|
|
|
||
|
|
tmpmask = (GPIO_Remap & DBGAFR_POSITION_MASK) >> 0x10;
|
||
|
|
tmp = GPIO_Remap & LSB_MASK;
|
||
|
|
|
||
|
|
if((GPIO_Remap & 0x10000000) == 0x10000000)
|
||
|
|
{
|
||
|
|
tmpreg &= ~((1<<1) | (1<<22));
|
||
|
|
tmpreg |= ~DBGAFR_SDI_MASK;
|
||
|
|
if(NewState != DISABLE)
|
||
|
|
{
|
||
|
|
tmpreg |= (GPIO_Remap & 0xEFFFFFFF);
|
||
|
|
}
|
||
|
|
|
||
|
|
}
|
||
|
|
else if((GPIO_Remap & 0x80000000) == 0x80000000)
|
||
|
|
{
|
||
|
|
tmpreg &= ~((1<<2) | (1<<21));
|
||
|
|
tmpreg |= ~DBGAFR_SDI_MASK;
|
||
|
|
if(NewState != DISABLE)
|
||
|
|
{
|
||
|
|
tmpreg |= (GPIO_Remap & 0x7FFFFFFF);
|
||
|
|
}
|
||
|
|
|
||
|
|
}
|
||
|
|
else if((GPIO_Remap & (DBGAFR_LOCATION_MASK | DBGAFR_NUMBITS_MASK)) == (DBGAFR_LOCATION_MASK | DBGAFR_NUMBITS_MASK))/* SDI */
|
||
|
|
{
|
||
|
|
tmpreg &= DBGAFR_SDI_MASK;
|
||
|
|
AFIO->PCFR1 &= DBGAFR_SDI_MASK;
|
||
|
|
|
||
|
|
if(NewState != DISABLE)
|
||
|
|
{
|
||
|
|
tmpreg |= (tmp << ((GPIO_Remap >> 0x15) * 0x10));
|
||
|
|
}
|
||
|
|
}
|
||
|
|
else if((GPIO_Remap & DBGAFR_NUMBITS_MASK) == DBGAFR_NUMBITS_MASK)/* [15:0] 2bit */
|
||
|
|
{
|
||
|
|
tmp1 = ((uint32_t)0x03) << tmpmask;
|
||
|
|
tmpreg &= ~tmp1;
|
||
|
|
tmpreg |= ~DBGAFR_SDI_MASK;
|
||
|
|
|
||
|
|
if(NewState != DISABLE)
|
||
|
|
{
|
||
|
|
tmpreg |= (tmp << ((GPIO_Remap >> 0x15) * 0x10));
|
||
|
|
}
|
||
|
|
}
|
||
|
|
else/* [31:0] 1bit */
|
||
|
|
{
|
||
|
|
tmpreg &= ~(tmp << ((GPIO_Remap >> 0x15) * 0x10));
|
||
|
|
tmpreg |= ~DBGAFR_SDI_MASK;
|
||
|
|
|
||
|
|
if(NewState != DISABLE)
|
||
|
|
{
|
||
|
|
tmpreg |= (tmp << ((GPIO_Remap >> 0x15) * 0x10));
|
||
|
|
}
|
||
|
|
}
|
||
|
|
|
||
|
|
|
||
|
|
AFIO->PCFR1 = tmpreg;
|
||
|
|
}
|
||
|
|
|
||
|
|
/*********************************************************************
|
||
|
|
* @fn GPIO_EXTILineConfig
|
||
|
|
*
|
||
|
|
* @brief Selects the GPIO pin used as EXTI Line.
|
||
|
|
*
|
||
|
|
* @param GPIO_PortSource - selects the GPIO port to be used as source for EXTI lines.
|
||
|
|
* This parameter can be GPIO_PortSourceGPIOx where x can be (A..G).
|
||
|
|
* GPIO_PinSource - specifies the EXTI line to be configured.
|
||
|
|
* This parameter can be GPIO_PinSourcex where x can be (0..7).
|
||
|
|
*
|
||
|
|
* @return none
|
||
|
|
*/
|
||
|
|
void GPIO_EXTILineConfig(uint8_t GPIO_PortSource, uint8_t GPIO_PinSource)
|
||
|
|
{
|
||
|
|
uint32_t tmp = 0x00;
|
||
|
|
|
||
|
|
tmp = ((uint32_t)(3<<(GPIO_PinSource<<1)));
|
||
|
|
AFIO->EXTICR &= ~tmp;
|
||
|
|
AFIO->EXTICR |= ((uint32_t)(GPIO_PortSource<<(GPIO_PinSource<<1)));
|
||
|
|
}
|
||
|
|
|
||
|
|
/*********************************************************************
|
||
|
|
* @fn GPIO_IPD_Unused
|
||
|
|
*
|
||
|
|
* @brief Configure unused GPIO as input pull-up.
|
||
|
|
*
|
||
|
|
* @param none
|
||
|
|
*
|
||
|
|
* @return none
|
||
|
|
*/
|
||
|
|
void GPIO_IPD_Unused(void)
|
||
|
|
{
|
||
|
|
GPIO_InitTypeDef GPIO_InitStructure = {0};
|
||
|
|
uint32_t chip = 0;
|
||
|
|
RCC_APB2PeriphClockCmd(RCC_APB2Periph_GPIOA | RCC_APB2Periph_GPIOD | RCC_APB2Periph_GPIOC, ENABLE);
|
||
|
|
chip = *( uint32_t * )0x1FFFF7C4 & (~0x000000F0);
|
||
|
|
switch(chip)
|
||
|
|
{
|
||
|
|
case 0x00320500: //CH32V003A4M6
|
||
|
|
{
|
||
|
|
GPIO_InitStructure.GPIO_Pin = GPIO_Pin_0|GPIO_Pin_2\
|
||
|
|
|GPIO_Pin_3;
|
||
|
|
GPIO_InitStructure.GPIO_Mode = GPIO_Mode_IPU;
|
||
|
|
GPIO_Init(GPIOD, &GPIO_InitStructure);
|
||
|
|
GPIO_InitStructure.GPIO_Pin = GPIO_Pin_5;
|
||
|
|
GPIO_InitStructure.GPIO_Mode = GPIO_Mode_IPU;
|
||
|
|
GPIO_Init(GPIOC, &GPIO_InitStructure);
|
||
|
|
break;
|
||
|
|
}
|
||
|
|
case 0x00330500: //CH32V003J4M6
|
||
|
|
{
|
||
|
|
GPIO_InitStructure.GPIO_Pin = GPIO_Pin_0|GPIO_Pin_2|GPIO_Pin_3\
|
||
|
|
|GPIO_Pin_7;
|
||
|
|
GPIO_InitStructure.GPIO_Mode = GPIO_Mode_IPU;
|
||
|
|
GPIO_Init(GPIOD, &GPIO_InitStructure);
|
||
|
|
GPIO_InitStructure.GPIO_Pin = GPIO_Pin_0|GPIO_Pin_3\
|
||
|
|
|GPIO_Pin_5|GPIO_Pin_6\
|
||
|
|
|GPIO_Pin_7;
|
||
|
|
GPIO_InitStructure.GPIO_Mode = GPIO_Mode_IPU;
|
||
|
|
GPIO_Init(GPIOC, &GPIO_InitStructure);
|
||
|
|
break;
|
||
|
|
}
|
||
|
|
default:
|
||
|
|
{
|
||
|
|
break;
|
||
|
|
}
|
||
|
|
|
||
|
|
}
|
||
|
|
|
||
|
|
}
|
||
|
|
|
||
|
|
|
||
|
|
|