~~~~~~~~作者: yzwzfyz 时间: 2018-12-15 12:21
标准51没有，STC的51可以。作者: yzwzfyz 时间: 2018-12-15 12:23
学会查手册！查单片机的中断源有哪些，一查便知。作者: yousunny 时间: 2018-12-15 16:44
STC出的官方验证的，外部中断唤醒
/*------------------------------------------------------------------*/
/* --- STC MCU Limited ---------------------------------------------*/
/* --- STC12C5Axx Series MCU Power-Down wakeup by INT0 Demo --------*/
/* If you want to use the program or the program referenced in the */
/* article, please specify in which data and procedures from STC */
/*------------------------------------------------------------------*/
#include "reg51.h"
#include "intrins.h"
//External interrupt0 service routine
void exint0() interrupt 0 //(location at 0003H)
{
}
void main()
{
IT0 = 1; //set INT0 int type (1:Falling 0:Low level)
EX0 = 1; //enable INT0 interrupt
EA = 1; //open global interrupt switch
while (1)
{
INT0 = 1; //ready read INT0 port
while (!INT0); //check INT0
_nop_();
_nop_();
PCON = 0x02; //MCU power down
_nop_();
_nop_();
P1++;
}
}