#include "sys.h"
#include "delay.h"
#include "usart.h"
int main(void)
{
Stm32_Clock_Init(9);
delay_init(72);
RCC->APB2ENR|=1<<3;
RCC->APB2ENR|=1<<6;
GPIOB->CRL&=0xFF0FFFFF;
GPIOB->CRL|=0x00300000;
GPIOB->ODR|=1<<5;
GPIOE->CRL&=0xFF0FFFFF;
GPIOE->CRL|=0x00300000;
GPIOE->ODR|=1<<5;
GPIOB->ODR &= ~(1<<5);
while(1){
GPIOE->ODR|=1<<5;
GPIOB->ODR|=1<<5;
delay_ms(300);
GPIOB->ODR &= ~(1<<5);
GPIOE->ODR &= ~(1<<5);
delay_ms(300);
}
}
以上是程序代码,编译能通过不报错,但是下载到板子上没有led灯闪烁!