1. 前言
- 本例演示了采用CH307串口3与Arduino软串口收发通信，熟悉STM32和Arduino开发用易上手配置。✨✨✨
这是使用MounRiver Studio开发的项目，支持在RISC-V核心基础硬件CH32V307评估板上使用带有msh Shell的RTOS快速原型。
MCU：CH32V307VCT6，主频 144MHz，FLASH和RAM可配置
l 全双工或半双工的同步或异步通信
l NRZ 数据格式
l 分数波特率发生器，最高 9Mbps
l 可编程数据长度
l 可配置的停止位
l 支持 LIN，IrDA 编码器，智能卡
l 支持 DMA
l 多种中断源
首先，应安装 CH32V307 评估板的驱动程序，打开设备管理器查看USB 端口和外部接口已准备就绪。
2. 软件配置
2.1 安装MounRiver Studio
环境搭建教程：https://blog.csdn.net/VOR234/article/details/128932474
3. UASRT项目测试
3.1 打开UASRT工程
评估板说明及参考例程：https://www.wch.cn/downloads/CH32V307EVT_ZIP.html
进入EXAM目录，就有对应的外设教程
进入USART_HalfDuplex文件下，双击USART_HalfDuplex.wvproj,
打开项目工程如下，main.c在user文件夹下
3.2 CH307串口发送数据到Arduino实验
修改CH307的main.c，杜邦线连接PB10(TX)--D2(RX);PB11(RX)--D3(TX)
/********************************** (C) COPYRIGHT ******************************* * File Name : main.c * Author : WCH * Version : V1.0.0 * Date : 2021/06/06 * Description : Main program body. ********************************************************************************* * Copyright (c) 2021 Nanjing Qinheng Microelectronics Co., Ltd. * Attention: This software (modified or not) and binary are used for * microcontroller manufactured by Nanjing Qinheng Microelectronics. *******************************************************************************/ /* *@Note:采用CH307串口3与Arduino软串口收发通信 Hardware connection:PB10(TX)--D2(RX);PB11(RX)--D3(TX) */ #include "debug.h" /* Global typedef */ typedef enum { FAILED = 0, PASSED = !FAILED } TestStatus; /* Global define */ //#define RxSize1 (size(RxBuffer1)) #define TxSize1 (size(TxBuffer1)) #define RxSize1 256 #define size(a) (sizeof(a) / sizeof(*(a))) /* Global Variable */ u8 TxBuffer1[] = "abcd"; /* Send by UART3 */ u8 RxBuffer1[RxSize1] = {0}; /* USART3 Using */ u8 TxCnt1 = 0, RxCnt1 = 0; /********************************************************************* * @fn USARTx_CFG * * @brief Initializes the USART3 peripheral. * * @return none */ void USARTx_CFG(void) { GPIO_InitTypeDef GPIO_InitStructure = {0}; USART_InitTypeDef USART_InitStructure = {0}; // NVIC_InitTypeDef NVIC_InitStructure = { 0 }; RCC_APB1PeriphClockCmd(RCC_APB1Periph_USART3, ENABLE); RCC_APB2PeriphClockCmd(RCC_APB2Periph_GPIOB, ENABLE); /* USART3 TX-->B.10 RX-->B.11 */ GPIO_InitStructure.GPIO_Pin = GPIO_Pin_11; /* Only Configure TX Pin */ 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_10; /* Only Configure TX Pin */ GPIO_Init(GPIOB, &GPIO_InitStructure); USART_InitStructure.USART_BaudRate = 9600; USART_InitStructure.USART_WordLength = USART_WordLength_8b; USART_InitStructure.USART_StopBits = USART_StopBits_1; USART_InitStructure.USART_Parity = USART_Parity_No; USART_InitStructure.USART_HardwareFlowControl = USART_HardwareFlowControl_None; USART_InitStructure.USART_Mode = USART_Mode_Tx | USART_Mode_Rx; USART_Init(USART3, &USART_InitStructure); USART_Cmd(USART3, ENABLE); // 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_Cmd(USART3, ENABLE); } /********************************************************************* * @fn main * * @brief Main program. * * @return none */ int main(void) { NVIC_PriorityGroupConfig(NVIC_PriorityGroup_2); SystemCoreClockUpdate(); Delay_Init(); USART_Printf_Init(115200); printf("SystemClk:%d\r\n", SystemCoreClock); printf( "ChipID:%08x\r\n", DBGMCU_GetCHIPID() ); printf("USART3 Arduino TEST\r\n"); USARTx_CFG(); /* USART3 INIT */ printf("USART3 INIT\r\n"); while(1) { /* CH307发送数据到Arduino */ while(USART_GetFlagStatus(USART3, USART_FLAG_TXE) == RESET){ } for ( int var = 0; var < TxSize1-1; ++ var) { USART_SendData(USART3, TxBuffer1[var]); Delay_Ms(1); } printf("TxBuffer1:%s\r\n", TxBuffer1); Delay_Ms(1000); } }
Arduino UNO 采用mixly编程
代码如下
#include <SoftwareSerial.h> SoftwareSerial mySerial(2,3); String item; volatile int number; void setup(){ mySerial.begin(9600); Serial.begin(9600); item = "hello123456"; number = 0; Serial.println(item); mySerial.println(item); } void loop(){ if (mySerial.available() > 0) { item = mySerial.readString(); Serial.println(String("item:") + String(item) + String("; number:") + String(number)); number++; } delay(1); }
实验效果
3.3 CH307串口接收数据Arduino实验
接线保持不变
修改CH307的main.c，杜邦线连接PB10(TX)--D2(RX);PB11(RX)--D3(TX)
/********************************** (C) COPYRIGHT ******************************* * File Name : main.c * Author : WCH * Version : V1.0.0 * Date : 2021/06/06 * Description : Main program body. ********************************************************************************* * Copyright (c) 2021 Nanjing Qinheng Microelectronics Co., Ltd. * Attention: This software (modified or not) and binary are used for * microcontroller manufactured by Nanjing Qinheng Microelectronics. *******************************************************************************/ /* *@Note:采用CH307串口3与Arduino软串口收发通信 Hardware connection:PB10(TX)--D2(RX);PB11(RX)--D3(TX) */ #include "debug.h" /* Global typedef */ typedef enum { FAILED = 0, PASSED = !FAILED } TestStatus; /* Global define */ //#define RxSize1 (size(RxBuffer1)) #define TxSize1 (size(TxBuffer1)) #define RxSize1 256 #define size(a) (sizeof(a) / sizeof(*(a))) /* Global Variable */ u8 TxBuffer1[] = "abcd"; /* Send by UART3 */ u8 RxBuffer1[RxSize1] = {0}; /* USART3 Using */ u8 TxCnt1 = 0, RxCnt1 = 0; /********************************************************************* * @fn USARTx_CFG * * @brief Initializes the USART3 peripheral. * * @return none */ void USARTx_CFG(void) { GPIO_InitTypeDef GPIO_InitStructure = {0}; USART_InitTypeDef USART_InitStructure = {0}; // NVIC_InitTypeDef NVIC_InitStructure = { 0 }; RCC_APB1PeriphClockCmd(RCC_APB1Periph_USART3, ENABLE); RCC_APB2PeriphClockCmd(RCC_APB2Periph_GPIOB, ENABLE); /* USART3 TX-->B.10 RX-->B.11 */ GPIO_InitStructure.GPIO_Pin = GPIO_Pin_11; /* Only Configure TX Pin */ 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_10; /* Only Configure TX Pin */ GPIO_Init(GPIOB, &GPIO_InitStructure); USART_InitStructure.USART_BaudRate = 9600; USART_InitStructure.USART_WordLength = USART_WordLength_8b; USART_InitStructure.USART_StopBits = USART_StopBits_1; USART_InitStructure.USART_Parity = USART_Parity_No; USART_InitStructure.USART_HardwareFlowControl = USART_HardwareFlowControl_None; USART_InitStructure.USART_Mode = USART_Mode_Tx | USART_Mode_Rx; USART_Init(USART3, &USART_InitStructure); USART_Cmd(USART3, ENABLE); // 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_Cmd(USART3, ENABLE); } /********************************************************************* * @fn main * * @brief Main program. * * @return none */ int main(void) { NVIC_PriorityGroupConfig(NVIC_PriorityGroup_2); SystemCoreClockUpdate(); Delay_Init(); USART_Printf_Init(115200); printf("SystemClk:%d\r\n", SystemCoreClock); printf( "ChipID:%08x\r\n", DBGMCU_GetCHIPID() ); printf("USART3 Arduino TEST\r\n"); USARTx_CFG(); /* USART3 INIT */ printf("USART3 INIT\r\n"); while(1) { /* CH307发送数据到Arduino */ // while(USART_GetFlagStatus(USART3, USART_FLAG_TXE) == RESET){ // } // for ( int var = 0; var < TxSize1-1; ++ var) { // USART_SendData(USART3, TxBuffer1[var]); // Delay_Ms(1); // } // printf("TxBuffer1:%s\r\n", TxBuffer1); // Delay_Ms(1000); /* 从Arduino接收数据到CH307 */ RxBuffer1[RxCnt1++] = USART_ReceiveData(USART3); while(RxBuffer1[RxCnt1-1] == 'i'|| RxCnt1-1 != 0) { while(USART_GetFlagStatus(USART3, USART_FLAG_RXNE) == RESET){ } RxBuffer1[RxCnt1++] = USART_ReceiveData(USART3); if (RxBuffer1[RxCnt1-1] == '\t') { printf("RxBuffer1:%s\r\n", RxBuffer1); break; } } RxCnt1 = 0; for (int var = 0; var < RxSize1; ++var) { RxBuffer1[var] = 0; } Delay_Ms(1); } }
Arduino UNO 采用mixly编程
代码如下
#include <SoftwareSerial.h> SoftwareSerial mySerial(2,3); String item; volatile int number; void setup(){ mySerial.begin(9600); Serial.begin(9600); item = "hello123456"; number = 0; Serial.println(item); mySerial.println(item); } void loop(){ mySerial.print(String("item:") + String(item) + String("; number:") + String(number) + String("; number:") + String(number) + String("\t")); number++; delay(1); }
实验效果
4. 小结
🥳🥳🥳通过对这篇文章我们掌握了沁恒WCH CH32V307V-R1与Arduino的串口通讯，尝试与Arduino通讯做更加好玩的实验，进而丰富我们的生活。🛹🛹🛹从而实现对外部世界进行感知，充分认识这个有机与无机的环境，🥳🥳🥳科学地合理地进行创作和发挥效益，然后为人类社会发展贡献一点微薄之力。🤣🤣🤣
