openmv与stm32f103zet6串口通信

要在OpenMV和STM32F103ZET6之间建立串口通信，可以按照以下步骤进行操作：

1. 在OpenMV IDE中打开一个新的Python脚本，添加以下代码：

   import serial
   import time
   
   #Serial communication settings
   SERIAL_PORT = "COM3" #Replace with the serial port of your STM32F103ZET6
   SERIAL_BAUDRATE = 115200 #Replace with the baudrate of your STM32F103ZET6
   
   #Initialize serial communication
   ser = serial.Serial(SERIAL_PORT, SERIAL_BAUDRATE, timeout=0)
   
   #Send data to STM32F103ZET6
   ser.write(b"Hello from OpenMV!\n")
   
   #Read data from STM32F103ZET6
   data = ser.readline().strip()
   
   #Print received data
   print(data)
   
   #Close serial communication
   ser.close()

2. 将OpenMV与电脑连接，并将OpenMV的串口连接到STM32F103ZET6的串口。

3. 将STM32F103ZET6编程，使其能够接收和发送串口数据。例如：

   #include "stm32f10x.h"
   
   USART_InitTypeDef USART_InitStructure;
   
   void USART_Configuration(void)
   {
       GPIO_InitTypeDef GPIO_InitStructure;
   
       //Enable GPIOA clock
       RCC_APB2PeriphClockCmd(RCC_APB2Periph_GPIOA, ENABLE);
   
       //Enable USART1 clock
       RCC_APB2PeriphClockCmd(RCC_APB2Periph_USART1, ENABLE);
   
       //Configure USART1 Tx (PA9) as alternate function push-pull
       GPIO_InitStructure.GPIO_Pin = GPIO_Pin_9;
       GPIO_InitStructure.GPIO_Mode = GPIO_Mode_AF_PP;
       GPIO_InitStructure.GPIO_Speed = GPIO_Speed_50MHz;
       GPIO_Init(GPIOA, &GPIO_InitStructure);
   
       //Configure USART1 Rx (PA10) as input floating
       GPIO_InitStructure.GPIO_Pin = GPIO_Pin_10;
       GPIO_InitStructure.GPIO_Mode = GPIO_Mode_IN_FLOATING;
       GPIO_Init(GPIOA, &GPIO_InitStructure);
   
       //Configure USART1
       USART_InitStructure.USART_BaudRate = 115200;
       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_Rx | USART_Mode_Tx;
       USART_Init(USART1, &USART_InitStructure);
   
       //Enable USART1
       USART_Cmd(USART1, ENABLE);
   }
   
   int main(void)
   {
       char data[100];
   
       //Configure USART1
       USART_Configuration();
   
       while (1) {
           //Check if data is received
           if (USART_GetFlagStatus(USART1, USART_FLAG_RXNE) == SET) {
               //Read data from USART1
               int i = 0;
               while (USART_GetFlagStatus(USART1, USART_FLAG_RXNE) == SET) {
                   data[i] = USART_ReceiveData(USART1);
                   i++;
               }
               data[i] = '\0';
   
               //Send received data back to OpenMV
               USART_SendString(USART1, data);
           }
       }
   }
   
   void USART_SendString(USART_TypeDef* USARTx, char* str)
   {
       while (*str) {
           //Wait for Tx buffer to be empty
           while (USART_GetFlagStatus(USARTx, USART_FLAG_TXE) == RESET);
   
           //Send character through USARTx
           USART_SendData(USARTx, *str++);
       }
   }

4. 将STM32F103ZET6连接到电脑，并打开串口终端程序，例如TeraTerm。

5. 在OpenMV IDE中运行Python脚本，将数据发送到STM32F103ZET6。可以在串口终端程序中看到接收到的数据，并且STM32F103ZET6会将数据发送回OpenMV。

6. 在Python脚本中读取STM32F103ZET6发送的数据，并进行相应的处理。例如：

   #Read data from STM32F103ZET6
   data = ser.readline().strip()
   
   #Convert data to string
   data_str = str(data, 'utf-8')
   
   #Print received data
   print(data_str)

7. 在STM32F103ZET6中，处理接收到的数据并发送回OpenMV。例如：

   void USART_SendString(USART_TypeDef* USARTx, char* str)
   {
       while (*str) {
           //Wait for Tx buffer to be empty
           while (USART_GetFlagStatus(USARTx, USART_FLAG_TXE) == RESET);
   
           //Send character through USARTx
           USART_SendData(USARTx, *str++);
       }
   }
   
   void process_data(char* data)
   {
       //Do something with received data
       //...
   
       //Send data back to OpenMV
       USART_SendString(USART1, data);
   }
   
   int main(void)
   {
       char data[100];
   
       //Configure USART1
       USART_Configuration();
   
       while (1) {
           //Check if data is received
           if (USART_GetFlagStatus(USART1, USART_FLAG_RXNE) == SET) {
               //Read data from USART1
               int i = 0;
               while (USART_GetFlagStatus(USART1, USART_FLAG_RXNE) == SET) {
                   data[i] = USART_ReceiveData(USART1);
                   i++;
               }
               data[i] = '\0';
   
               //Process received data
               process_data(data);
           }
       }
   }

通过以上步骤，就可以在OpenMV和STM32F103ZET6之间建立串口通信。可以根据实际需要，在Python脚本和STM32F103ZET6代码中进行相应的修改。