初学固件库，历程也参考了很多了，串口就是跑不出来....应该是一个很幼稚的错误...望指点

markerhao · 发表于 2013-4-13 10:05:21

void UART1_GPIO_Configuration(void)
{
     GPIO_InitTypeDef GPIO_InitStructure;
    RCC_APB2PeriphClockCmd(RCC_APB2Periph_USART1, ENABLE);
  GPIO_InitStructure.GPIO_Pin = GPIO_Pin_9;
    GPIO_InitStructure.GPIO_Speed = GPIO_Speed_50MHz;
    GPIO_InitStructure.GPIO_Mode = GPIO_Mode_AF_PP; //
     GPIO_Init(GPIOA, &GPIO_InitStructure);        // Configure USART1_Rx as input floating
     GPIO_InitStructure.GPIO_Pin = GPIO_Pin_10;    //
     GPIO_InitStructure.GPIO_Mode = GPIO_Mode_IN_FLOATING;//
     GPIO_Init(GPIOA, &GPIO_InitStructure);
   }

void USART_Configuration(void) {
USART_InitTypeDef USART_InitStructure;       //
  USART_ClockInitTypeDef USART_ClockInitStructure;
USART_ClockInitStructure.USART_Clock = USART_Clock_Enable;//
USART_ClockInitStructure.USART_CPOL = USART_CPOL_Low;
USART_ClockInitStructure.USART_CPHA = USART_CPHA_2Edge;
USART_ClockInitStructure.USART_LastBit = USART_LastBit_Disable;
USART_ClockInit(USART1,&USART_ClockInitStructure);
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);      //
USART_Cmd(USART1, ENABLE);//

}

int main(void)
{
UART1_GPIO_Configuration();
USART_Configuration();

while(1)
{
USART_SendData(USART1, 'A'); //
}
}
连上电脑就是不行，但是考一些历程的axf是能发的，自己写的就不行....