有没有哪位能帮忙看一下这个程序哪里出问题了，它的作用是让USART1发出ABC。。。后面的30个字符，但是软件调试时一直没有反应

辉常可乐 · 发表于 2016-11-3 14:08:05

int main(void)
{
#ifdef DEBUG
debug();
#endif

u8 i,data;
RCC_configuration();
GPIO_Configuration();
USART_Configuration();
data='A';
for(i=0;i<30;i++)
{
USART_SendData(USART1,data);
data++;
while(USART_GetFlagStatus (USART1,USART_FLAG_TC)==RESET);
}
}

void USART_Configuration (void)
{
  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_Tx | USART_Mode_Rx;
USART_Init(USART1,&USART_InitStructure);
USART_Cmd(USART1,ENABLE);
}

void RCC_configuration(void)
{
  RCC_DeInit();                                                                         //3õê¼»ˉÎaè±ê¡Öμ
RCC_HSEConfig(RCC_HSE_ON);                                              //ê1Äüía2¿μÄ¸ßËùê±Öó
  while (RCC_GetFlagStatus(RCC_FLAG_HSERDY)==RESET);    //μè′yía2¿¸ßËùê±Öóê1Äü¾íD÷

  FLASH_PrefetchBufferCmd(FLASH_PrefetchBuffer_Enable);       //Enable Prefetch Buffer
FLASH_SetLatency(FLASH_Latency_2);                                  //Flash 2 wait state

RCC_HCLKConfig(RCC_SYSCLK_Div1);                                     //HCLK=SYSCLK
RCC_PCLK2Config(RCC_HCLK_Div1);                                        //PCLK2=HCLK
RCC_PCLK2Config(RCC_HCLK_Div2);                                        //PCLK1=HCLK/2
RCC_PLLConfig(RCC_PLLSource_HSE_Div1,RCC_PLLMul_9);    //PLLCLK=8MHZ*9=72MHZ
RCC_PLLCmd(ENABLE);                                                          //Enable PLLCLK

while (RCC_GetFlagStatus(RCC_FLAG_HSERDY)==RESET);          //wait  till  PLLCLK is  ready
RCC_SYSCLKConfig(RCC_SYSCLKSource_PLLCLK);                   //Select  PLL  as  system  clock
while (RCC_GetSYSCLKSource()!=0x08);                                        //Wait  till  PLL  is  used  as  system  clock  source

RCC_APB2PeriphClockCmd(RCC_APB2Periph_GPIOA,ENABLE);       //ê1ÄüAPB2íaéèμÄGPIOAμÄê±Öó
RCC_APB2PeriphClockCmd(RCC_APB2Periph_GPIOA,ENABLE);       //ê1ÄüAPB2íaéèμÄGPIOCμÄê±Öó
}

void GPIO_Configuration(void)
{
  GPIO_InitTypeDef GPIO_InitStructure;

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 USARTx_Tx as alternate function push-pull*/
GPIO_InitStructure.GPIO_Pin=GPIO_Pin_10;
GPIO_InitStructure.GPIO_Mode=GPIO_Mode_IN_FLOATING;
GPIO_Init(GPIOA,&GPIO_InitStructure);
}