碰到一个奇怪的问题
int main(void)
{
  USART_Config();
  ADS7843_Init();
   while (1);
}
为什么我一注销串口配置USART_Config();程序就进入外部中断出不来？两个函数如下：
void ADS7843_Init(void)
{
    ADS7843_CS_config();     // 使能LCD
    ADS7843_CS_HIGH() ;     // 关闭LCD
    SPI1_Config();
     SPI1_MOSI_HIGH();
    SPI1_SCK_LOW();
    ADS7843_INT_config();
    ADS7843_INT_EXIT_Init();
    ADS7843_InterruptConfig();
}
void USART_Config(void)
{
  USART_InitTypeDef USART_InitStructure;
  USART_InitStructure.USART_BaudRate = 115200;
  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;

  STM_EVAL_COMInit(COM1, &USART_InitStructure);
}
路过的给点建议啊 此帖出自小平头技术问答