stm32f103c8t6串口收发数据

关于stm32f103c8t6串口收发数据这个问题，您可以参考以下步骤：

1. 配置串口的工作模式和波特率，具体可以参考芯片手册或者开发板的相关资料。
2. 初始化串口的接收和发送缓存区，并开启串口中断。

例如，对于USART1的初始化代码可以如下所示：

// 1. enable clock for USART1
RCC_APB2PeriphClockCmd(RCC_APB2Periph_USART1, ENABLE);

// 2. initialize USART1 with Baudrate 9600, 8 data bits, 1 stop bit, no parity
USART_InitTypeDef USART_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_Rx | USART_Mode_Tx;
USART_Init(USART1, &USART_InitStructure);

// 3. enable USART interrupts
USART_ITConfig(USART1, USART_IT_RXNE, ENABLE);
USART_Cmd(USART1, ENABLE);

// 4. set up USART1 NVIC
NVIC_InitTypeDef NVIC_InitStructure;
NVIC_InitStructure.NVIC_IRQChannelPreemptionPriority = 0;
NVIC_InitStructure.NVIC_IRQChannelSubPriority = 0;
NVIC_InitStructure.NVIC_IRQChannelCmd = ENABLE;
NVIC_InitStructure.NVIC_IRQChannel = USART1_IRQn;
NVIC_Init(&NVIC_InitStructure);

3. 在中断处理函数中实现接收数据和发送数据的功能。

例如，对于USART1的接收中断处理函数可以如下所示：

void USART1_IRQHandler(void) {
    if (USART_GetITStatus(USART1, USART_IT_RXNE) != RESET) {
        // receive data
        uint8_t ch = USART_ReceiveData(USART1);
        // do something with received data
        // ...
    }
    if (USART_GetITStatus(USART1, USART_IT_TXE) != RESET) {
        // transmit data
        if (buffer_not_empty()) {
            USART_SendData(USART1, get_next_byte());
        } else {
            // disable TXE interrupt if no more data to send
            USART_ITConfig(USART1, USART_IT_TXE, DISABLE);
        }
    }
}

希望以上内容能够帮助到您。