大家可以帮忙看一下一下代码吗？ 我已经看了将近一周了但达不到我的目的，每个独立键盘控制不同频率的声音，求各位大师帮忙啊!
#include <reg52.h>
unsigned char i,j,key;
#define uint unsigned int
#define uchar unsigned char
uchar table[]={63343,640,63330};
uchar hz;
sbit key1=P3^2;
sbit key2=P3^3;
sbit key3=P1^0;
sbit key4=P1^1;
sbit fenmingqi=P3^4;
void delay(uint x);
void program(uchar key);
void init();
void main(void)
{
init();
if(key1==0)
{
hz=table[0];
program(key1);
}
if(key2==0)
{
hz=table[1];
program(key2);
}
}
void t0(void) interrupt 1 using 0
{
TH0=(65536-hz)/256;
TL0=(65536-hz)%256;
fenmingqi=~fenmingqi;
}
void program(uchar key)
{
TH0=(65536-hz)/256;
TL0=(65536-hz)%256;
if (key==0)
{
delay(2);
if(key==0)
TR0=1;
}
while(key1==0)
fenmingqi=1;
TR0=1;
}
void init()
{
TMOD=0x01;
ET0=1;
EA=1;
}
void delay(uint x)
{
uint y,i;
for (y=0;y<x;y++)
for(i=0;i<3;i++);
}
| 欢迎光临 (http://www.51hei.com/bbs/) | Powered by Discuz! X3.1 |