定时器中断实验key.c

51单片机的定时器中断实验程序源码 #include "led.h" void LED_Init(void) { RCC->APB2ENR|=1<<3; //ʹÄÜPORTBʱÖÓ RCC->APB2ENR|=1<<6; //ʹÄÜPORTEʱÖÓ GPIOB->CRL&=0XFF0FFFFF; GPIOB->CRL|=0X00300000;//PB.5 ÍÆÍìÊä³ö GPIOB->ODR|=1<<5; //PB.5 Êä³ö¸ß GPIOE->CRL&=0XFF0FFFFF; GPIOE->CRL|=0X00300000;//PE.5ÍÆÍìÊä³ö GPIOE->ODR|=1<<5; //PE.5Êä³ö¸ß }