3.1 連接硬件

開發(fā)板配件中有一條Mini-USB線，連接DEBUG-usb至PC USB端口，如果供電正常，如下燈會(huì)亮

3.2 KEIL 配置

在Keil中配置DAP下載器

配置完成后，最好查看DAP是否已經(jīng)識(shí)別芯片

3.3 下載和運(yùn)行Demo

代碼分析

int main(void)
{
    /* System Clocks Configuration */
    RCC_Configuration();

    /* Configure the GPIO ports */
    GPIO_Configuration();

    /* USARTy and USARTz configuration ----------------------------------*/
    USART_InitStructure.BaudRate            = 115200;
    USART_InitStructure.WordLength          = USART_WL_8B;
    USART_InitStructure.StopBits            = USART_STPB_1;
    USART_InitStructure.Parity              = USART_PE_NO;
    USART_InitStructure.HardwareFlowControl = USART_HFCTRL_NONE;
    USART_InitStructure.Mode                = USART_MODE_RX | USART_MODE_TX;

    /* Configure USARTx */
    USART_Init(USARTx, &USART_InitStructure);
    /* Enable the USARTx */
    USART_Enable(USARTx, ENABLE);

    /* Output a message on Hyperterminal using printf function */
    printf("nrUSART Printf Example: retarget the C library printf function to the USARTnr");
    
    while (1)
    {
    }
}

下載代碼：

運(yùn)行代碼：

在串口調(diào)試接口看見如下log：