104-CH32V307(WCH微控制器)學習開發-串列埠
阿新 • • 發佈：2022-05-19
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串列埠1
void uart_init(u32 bound1){ GPIO_InitTypeDef GPIO_InitStructure; USART_InitTypeDef USART_InitStructure; NVIC_InitTypeDef NVIC_InitStructure; RCC_APB2PeriphClockCmd(RCC_APB2Periph_GPIOA|RCC_APB2Periph_GPIOB|RCC_APB2Periph_USART1|RCC_APB2Periph_AFIO , ENABLE); //USART1_TX GPIOA.9 GPIO_InitStructure.GPIO_Pin = GPIO_Pin_9; GPIO_InitStructure.GPIO_Speed = GPIO_Speed_50MHz; GPIO_InitStructure.GPIO_Mode = GPIO_Mode_AF_PP; GPIO_Init(GPIOA, &GPIO_InitStructure);//USART1_RX GPIOA.10初始化 GPIO_InitStructure.GPIO_Pin = GPIO_Pin_10; GPIO_InitStructure.GPIO_Mode = GPIO_Mode_IPU; GPIO_Init(GPIOA, &GPIO_InitStructure); //USART 初始化設定 USART_InitStructure.USART_WordLength = USART_WordLength_8b;//字長為8位資料格式 USART_InitStructure.USART_StopBits = USART_StopBits_1;//一個停止位 USART_InitStructure.USART_Parity = USART_Parity_No;//無奇偶校驗位 USART_InitStructure.USART_HardwareFlowControl = USART_HardwareFlowControl_None;//無硬體資料流控制 USART_InitStructure.USART_Mode = USART_Mode_Rx | USART_Mode_Tx; //收發模式 USART_InitStructure.USART_BaudRate = bound1;//串列埠波特率 USART_Init(USART1, &USART_InitStructure); //初始化串列埠1 /*中斷優先順序配置*/ NVIC_InitStructure.NVIC_IRQChannel = USART1_IRQn; NVIC_InitStructure.NVIC_IRQChannelPreemptionPriority=3; NVIC_InitStructure.NVIC_IRQChannelSubPriority = 3; NVIC_InitStructure.NVIC_IRQChannelCmd = ENABLE; NVIC_Init(&NVIC_InitStructure); //根據指定的引數初始化VIC暫存器 USART_ITConfig(USART1, USART_IT_RXNE, ENABLE);//開啟串列埠接受中斷 USART_Cmd(USART1, ENABLE); //使能串列埠 } //串列埠中斷服務程式 __attribute__((interrupt("WCH-Interrupt-fast"))) void USART1_IRQHandler(void) { u8 Res; if(USART_GetITStatus(USART1, USART_IT_RXNE) != RESET) { Res =USART_ReceiveData(USART1); //讀取接收到的資料 } }
串列埠傳送資料
void usart_send_bytes(USART_TypeDef *USARTx, char *c,uint32_t cnt) { while(cnt--) { USART_SendData(USARTx, *c++); while(USART_GetFlagStatus(USARTx, USART_FLAG_TXE) == RESET ); } } usart_send_bytes(USART1, "11223344", 4);//傳送資料
串列埠1,2,3
void uart_init(u32 bound1,u32 bound2,u32 bound3){ GPIO_InitTypeDef GPIO_InitStructure; USART_InitTypeDef USART_InitStructure; NVIC_InitTypeDef NVIC_InitStructure; RCC_APB1PeriphClockCmd(RCC_APB1Periph_USART2|RCC_APB1Periph_USART3, ENABLE); RCC_APB2PeriphClockCmd(RCC_APB2Periph_GPIOA|RCC_APB2Periph_GPIOB|RCC_APB2Periph_USART1|RCC_APB2Periph_AFIO , ENABLE); //串列埠引腳 GPIO_InitStructure.GPIO_Pin = GPIO_Pin_9; GPIO_InitStructure.GPIO_Speed = GPIO_Speed_50MHz; GPIO_InitStructure.GPIO_Mode = GPIO_Mode_AF_PP; GPIO_Init(GPIOA, &GPIO_InitStructure); GPIO_InitStructure.GPIO_Pin = GPIO_Pin_10; GPIO_InitStructure.GPIO_Mode = GPIO_Mode_IPU; GPIO_Init(GPIOA, &GPIO_InitStructure); //串列埠引腳 GPIO_InitStructure.GPIO_Pin = GPIO_Pin_2; GPIO_InitStructure.GPIO_Speed = GPIO_Speed_50MHz; GPIO_InitStructure.GPIO_Mode = GPIO_Mode_AF_PP; GPIO_Init(GPIOA, &GPIO_InitStructure); GPIO_InitStructure.GPIO_Pin = GPIO_Pin_3; GPIO_InitStructure.GPIO_Mode = GPIO_Mode_IPU; GPIO_Init(GPIOA, &GPIO_InitStructure); //串列埠引腳 GPIO_InitStructure.GPIO_Pin = GPIO_Pin_10; GPIO_InitStructure.GPIO_Speed = GPIO_Speed_50MHz; GPIO_InitStructure.GPIO_Mode = GPIO_Mode_AF_PP; GPIO_Init(GPIOB, &GPIO_InitStructure); GPIO_InitStructure.GPIO_Pin = GPIO_Pin_11; GPIO_InitStructure.GPIO_Mode = GPIO_Mode_IPU; GPIO_Init(GPIOB, &GPIO_InitStructure); //USART 初始化設定 USART_InitStructure.USART_WordLength = USART_WordLength_8b;//字長為8位資料格式 USART_InitStructure.USART_StopBits = USART_StopBits_1;//一個停止位 USART_InitStructure.USART_Parity = USART_Parity_No;//無奇偶校驗位 USART_InitStructure.USART_HardwareFlowControl = USART_HardwareFlowControl_None;//無硬體資料流控制 USART_InitStructure.USART_Mode = USART_Mode_Rx | USART_Mode_Tx; //收發模式 USART_InitStructure.USART_BaudRate = bound1;//串列埠波特率 USART_Init(USART1, &USART_InitStructure); //初始化串列埠1 USART_InitStructure.USART_BaudRate = bound2;//串列埠波特率 USART_Init(USART2, &USART_InitStructure); //初始化串列埠2 USART_InitStructure.USART_BaudRate = bound3;//串列埠波特率 USART_Init(USART3, &USART_InitStructure); //初始化串列埠3 /*串列埠--1*/ NVIC_InitStructure.NVIC_IRQChannel = USART1_IRQn; NVIC_InitStructure.NVIC_IRQChannelPreemptionPriority=3; NVIC_InitStructure.NVIC_IRQChannelSubPriority = 3; NVIC_InitStructure.NVIC_IRQChannelCmd = ENABLE; NVIC_Init(&NVIC_InitStructure); //根據指定的引數初始化VIC暫存器 /*串列埠--2*/ NVIC_InitStructure.NVIC_IRQChannel = USART2_IRQn; NVIC_InitStructure.NVIC_IRQChannelPreemptionPriority=0; NVIC_InitStructure.NVIC_IRQChannelSubPriority = 0; NVIC_InitStructure.NVIC_IRQChannelCmd = ENABLE; NVIC_Init(&NVIC_InitStructure); //根據指定的引數初始化VIC暫存器 /*串列埠--3*/ NVIC_InitStructure.NVIC_IRQChannel = USART3_IRQn; NVIC_InitStructure.NVIC_IRQChannelPreemptionPriority=1; NVIC_InitStructure.NVIC_IRQChannelSubPriority = 1; NVIC_InitStructure.NVIC_IRQChannelCmd = ENABLE; NVIC_Init(&NVIC_InitStructure); USART_ITConfig(USART1, USART_IT_RXNE, ENABLE);//開啟串列埠接受中斷 USART_ITConfig(USART2, USART_IT_RXNE, ENABLE);//開啟串列埠接受中斷 USART_ITConfig(USART3, USART_IT_RXNE, ENABLE);//開啟串列埠接受中斷 USART_Cmd(USART1, ENABLE); //使能串列埠 USART_Cmd(USART2, ENABLE); //使能串列埠 USART_Cmd(USART3, ENABLE); //使能串列埠 } //串列埠中斷服務程式 __attribute__((interrupt("WCH-Interrupt-fast"))) void USART1_IRQHandler(void) { u8 Res; if(USART_GetITStatus(USART1, USART_IT_RXNE) != RESET) { Res =USART_ReceiveData(USART1); //讀取接收到的資料 } } //串列埠中斷服務程式 __attribute__((interrupt("WCH-Interrupt-fast"))) void USART2_IRQHandler(void) { u8 Res; if(USART_GetITStatus(USART2, USART_IT_RXNE) != RESET) { Res =USART_ReceiveData(USART2); //讀取接收到的資料 } } //串列埠中斷服務程式 __attribute__((interrupt("WCH-Interrupt-fast"))) void USART3_IRQHandler(void) { u8 Res; if(USART_GetITStatus(USART3, USART_IT_RXNE) != RESET) { Res =USART_ReceiveData(USART3); //讀取接收到的資料 } }
串列埠4
void uart_init(u32 bound4){ //GPIO埠設定 GPIO_InitTypeDef GPIO_InitStructure; USART_InitTypeDef USART_InitStructure; NVIC_InitTypeDef NVIC_InitStructure; RCC_APB1PeriphClockCmd(RCC_APB1Periph_USART2|RCC_APB1Periph_USART3|RCC_APB1Periph_UART4, ENABLE); RCC_APB2PeriphClockCmd(RCC_APB2Periph_GPIOA|RCC_APB2Periph_GPIOB|RCC_APB2Periph_GPIOC|RCC_APB2Periph_USART1|RCC_APB2Periph_AFIO , ENABLE); //串列埠引腳 GPIO_InitStructure.GPIO_Pin = GPIO_Pin_10; GPIO_InitStructure.GPIO_Speed = GPIO_Speed_50MHz; GPIO_InitStructure.GPIO_Mode = GPIO_Mode_AF_PP; GPIO_Init(GPIOC, &GPIO_InitStructure); GPIO_InitStructure.GPIO_Pin = GPIO_Pin_11; GPIO_InitStructure.GPIO_Mode = GPIO_Mode_IPU; GPIO_Init(GPIOC, &GPIO_InitStructure); //USART 初始化設定 USART_InitStructure.USART_WordLength = USART_WordLength_8b;//字長為8位資料格式 USART_InitStructure.USART_StopBits = USART_StopBits_1;//一個停止位 USART_InitStructure.USART_Parity = USART_Parity_No;//無奇偶校驗位 USART_InitStructure.USART_HardwareFlowControl = USART_HardwareFlowControl_None;//無硬體資料流控制 USART_InitStructure.USART_Mode = USART_Mode_Rx | USART_Mode_Tx; //收發模式 USART_InitStructure.USART_BaudRate = bound4;//串列埠波特率 USART_Init(UART4, &USART_InitStructure); //初始化串列埠 /*串列埠--4*/ NVIC_InitStructure.NVIC_IRQChannel = UART4_IRQn; NVIC_InitStructure.NVIC_IRQChannelPreemptionPriority=1; NVIC_InitStructure.NVIC_IRQChannelSubPriority = 2; NVIC_InitStructure.NVIC_IRQChannelCmd = ENABLE; NVIC_Init(&NVIC_InitStructure); USART_ITConfig(UART4, USART_IT_RXNE, ENABLE);//開啟串列埠接受中斷 USART_Cmd(UART4, ENABLE); //使能串列埠 } //串列埠中斷服務程式 __attribute__((interrupt("WCH-Interrupt-fast"))) void UART4_IRQHandler(void) { u8 Res; if(USART_GetITStatus(UART4, USART_IT_RXNE) != RESET) { Res =USART_ReceiveData(UART4); //讀取接收到的資料 USART_SendData(UART4, Res);//返回接收的資料 } }
串列埠5
void uart_init(u32 bound5){ //GPIO埠設定 GPIO_InitTypeDef GPIO_InitStructure; USART_InitTypeDef USART_InitStructure; NVIC_InitTypeDef NVIC_InitStructure; RCC_APB1PeriphClockCmd(RCC_APB1Periph_USART2|RCC_APB1Periph_USART3|RCC_APB1Periph_UART4|RCC_APB1Periph_UART5, ENABLE); RCC_APB2PeriphClockCmd(RCC_APB2Periph_GPIOA|RCC_APB2Periph_GPIOB|RCC_APB2Periph_GPIOC|RCC_APB2Periph_GPIOD|RCC_APB2Periph_USART1|RCC_APB2Periph_AFIO , ENABLE); //串列埠引腳 GPIO_InitStructure.GPIO_Pin = GPIO_Pin_12; GPIO_InitStructure.GPIO_Speed = GPIO_Speed_50MHz; GPIO_InitStructure.GPIO_Mode = GPIO_Mode_AF_PP; GPIO_Init(GPIOC, &GPIO_InitStructure); GPIO_InitStructure.GPIO_Pin = GPIO_Pin_2; GPIO_InitStructure.GPIO_Mode = GPIO_Mode_IPU; GPIO_Init(GPIOD, &GPIO_InitStructure); //USART 初始化設定 USART_InitStructure.USART_WordLength = USART_WordLength_8b;//字長為8位資料格式 USART_InitStructure.USART_StopBits = USART_StopBits_1;//一個停止位 USART_InitStructure.USART_Parity = USART_Parity_No;//無奇偶校驗位 USART_InitStructure.USART_HardwareFlowControl = USART_HardwareFlowControl_None;//無硬體資料流控制 USART_InitStructure.USART_Mode = USART_Mode_Rx | USART_Mode_Tx; //收發模式 USART_InitStructure.USART_BaudRate = bound5;//串列埠波特率 USART_Init(UART5, &USART_InitStructure); //初始化串列埠 /*串列埠--5*/ NVIC_InitStructure.NVIC_IRQChannel = UART5_IRQn; NVIC_InitStructure.NVIC_IRQChannelPreemptionPriority=1; NVIC_InitStructure.NVIC_IRQChannelSubPriority = 3; NVIC_InitStructure.NVIC_IRQChannelCmd = ENABLE; NVIC_Init(&NVIC_InitStructure); USART_ITConfig(UART5, USART_IT_RXNE, ENABLE);//開啟串列埠接受中斷 USART_Cmd(UART5, ENABLE); //使能串列埠 } //串列埠中斷服務程式 __attribute__((interrupt("WCH-Interrupt-fast"))) void UART5_IRQHandler(void) { u8 Res; if(USART_GetITStatus(UART5, USART_IT_RXNE) != RESET) { Res =USART_ReceiveData(UART5); //讀取接收到的資料 USART_SendData(UART5, Res); } }