syn6658串口失败啊

poqpoqpoq90

int main(void)
{  
Stm32_Clock_Init(9); //系统时钟设置  72M
uart_init(72,9600); //串口初始化为9600  
uart2_init(36,9600);
  while(1)
{ u16 times;
u8 i,p[13]={0xFD,0x00,0x0A,0x01,0x00,0xD3,0xEE,0xD2,0xF4,0xCC,0xEC,0xCF,0xC2};
char dat=0;

times++;
if(times%5000==0)
{
for(i=0;i<13;i++)
{
while(!(USART2->SR & (1<<7)))
USART2->DR =p;

}
delay_ms(20);
}


delay_ms(5000);
delay_ms(5000);

}







}

新手不知道哪错了返回个f1