蜂鳴器簡(jiǎn)易電子琴設(shè)計(jì)

ID:452708 · 發(fā)表于 2018-12-23 16:33

#include<reg51.h>
sbit SPK=P1^0;
sbit key1=P2^0;
sbit key2=P2^5;
void delay1000Hz(void);
void delay(unsigned int xms);
void delay500Hz(void);

void delay1000Hz(void)
{
      unsigned int i;
      for(i=0;i<167;i++);
}
void delay500Hz(void)
{
      unsigned int i;
      for(i=0;i<83;i++);
}

int main(){

while(1){
      if(key1 == 0){

      SPK=0;
      delay1000Hz();
      SPK=1;
      delay1000Hz();
      }

      if(key2==0){
      SPK=0;
      delay500Hz();
      SPK=1;
      delay500Hz();
      }



}
return       0;
}

ID:870048 · 發(fā)表于 2020-12-31 09:50

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