您好，我使用CH32V003J4M6的芯片，串口初始化成功了，每次都要用linke全擦，使用串口发送一个字符串，用usb转ttl接收不到，我用V203的板子测试了usb转ttl是可以接收到数据的，请问是什么问题，

void UART_Init(uint32_t baudrate)

{

    GPIO_InitTypeDef  GPIO_InitStructure = {0};

    USART_InitTypeDef USART_InitStructure = {0};

    NVIC_InitTypeDef  NVIC_InitStructure = {0};

    RCC_APB2PeriphClockCmd(RCC_APB2Periph_GPIOD | RCC_APB2Periph_USART1, ENABLE);

    /* USART1 TX-->D.5   RX-->D.6 */

    GPIO_InitStructure.GPIO_Pin = GPIO_Pin_5;

    GPIO_InitStructure.GPIO_Speed = GPIO_Speed_30MHz;

    GPIO_InitStructure.GPIO_Mode = GPIO_Mode_AF_PP;

    GPIO_Init(GPIOD, &GPIO_InitStructure);

    GPIO_InitStructure.GPIO_Pin = GPIO_Pin_6;

    GPIO_InitStructure.GPIO_Mode = GPIO_Mode_IN_FLOATING;

    GPIO_Init(GPIOD, &GPIO_InitStructure);

    USART_InitStructure.USART_BaudRate = baudrate;

    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(USART1, &USART_InitStructure);

    //初始化环形缓冲区

    circle_buf_init(&rx_buf, BufferSize, RxBuffer);

    // 使能串口中断

    USART_ITConfig(USART1, USART_IT_RXNE, ENABLE);

    NVIC_InitStructure.NVIC_IRQChannel = USART1_IRQn;

    NVIC_InitStructure.NVIC_IRQChannelPreemptionPriority = 0;

    NVIC_InitStructure.NVIC_IRQChannelSubPriority = 0;

    NVIC_InitStructure.NVIC_IRQChannelCmd = ENABLE;

    NVIC_Init(&NVIC_InitStructure);

    USART_Cmd(USART1, ENABLE);

}

void UART_Init(uint32_t baudrate)

{

    GPIO_InitTypeDef  GPIO_InitStructure = {0};

    USART_InitTypeDef USART_InitStructure = {0};

    NVIC_InitTypeDef  NVIC_InitStructure = {0};

    RCC_APB2PeriphClockCmd(RCC_APB2Periph_GPIOD | RCC_APB2Periph_USART1, ENABLE);

    /* USART1 TX-->D.5   RX-->D.6 */

    GPIO_InitStructure.GPIO_Pin = GPIO_Pin_5;

    GPIO_InitStructure.GPIO_Speed = GPIO_Speed_30MHz;

    GPIO_InitStructure.GPIO_Mode = GPIO_Mode_AF_PP;

    GPIO_Init(GPIOD, &GPIO_InitStructure);

    GPIO_InitStructure.GPIO_Pin = GPIO_Pin_6;

    GPIO_InitStructure.GPIO_Mode = GPIO_Mode_IN_FLOATING;

    GPIO_Init(GPIOD, &GPIO_InitStructure);

    USART_InitStructure.USART_BaudRate = baudrate;

    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(USART1, &USART_InitStructure);

    //初始化环形缓冲区

    circle_buf_init(&rx_buf, BufferSize, RxBuffer);

    // 使能串口中断

    USART_ITConfig(USART1, USART_IT_RXNE, ENABLE);

    NVIC_InitStructure.NVIC_IRQChannel = USART1_IRQn;

    NVIC_InitStructure.NVIC_IRQChannelPreemptionPriority = 0;

    NVIC_InitStructure.NVIC_IRQChannelSubPriority = 0;

    NVIC_InitStructure.NVIC_IRQChannelCmd = ENABLE;

    NVIC_Init(&NVIC_InitStructure);

    USART_Cmd(USART1, ENABLE);

}

void usart1_printf(uint8_t *fmt,...)

{

    uint8_t Uart1_Bufferr[256];

    uint16_t i,j;

    va_list ap;

    va_start(ap,fmt);

    vsprintf((char*)Uart1_Bufferr,fmt,ap);

    va_end(ap);

    i=strlen((char*)Uart1_Bufferr);

    for(j=0;j

    {

        while(USART_GetFlagStatus(USART1, USART_FLAG_TC) == RESET);

        USART_SendData(USART1, (uint8_t)Uart1_Bufferr[j]);

    }

}

我就在while（1）里一直不停的发usart1_printf("012")但是接收不到

我使用官方的usart_printf也一样接收不到数据，使用多款调试工具都不行，官方的wch串口调试工具也使用过了

没事了，我自己的问题