p2.0口无波形，我是想VCC一上电就发出声音，以下程序对么？
/*12Mhz晶振工作*/
#include <reg51.h>
#define uint unsigned int
#define uchar unsigned char
sbit voice=P2^0;
uchar code sound[]={0xff,
0x12,0x30,0x12,0x30,0x10,0x30,0x10,0x30,0x0e,0x30,0x0e,0x30,0x10,0x30,
0x10,0x30,0x12,0x30,0x12,0x30,0x18,0x30,0x18,0x30,0x1c,0x30,0x1c,0x30,
0x24,0x30,0x24,0x30,0x26,0x30,0x13,0x30,0x15,0x30,0x15,0x30,0x18,0x30,
0x15,0x30,0x13,0x30,0x15,0x30,0x15,0x30,0x48,0x30,0x60,0x30,0x39,0x30,
0x60,0x30,0x39,0x30,0x60,0x30,0x39,0x30,0x60,0x30,0x48,0x30,0x60,0x30,
0x39,0x30,0x60,0x30,0x39,0x30,0x60,0x30,0x39,0x30,0x60,0x30,0x60,0x30,
0x48,0x30,0x2b,0x30,0x48,0x30,0x2b,0x30,0x48,0x30,0x00,
};
uchar zdjs=0, jp;
del(yj);
void main(void)
{
uint dpjs=0;
uchar yj;
TMOD=0x01,IE=0x82;
TH0=0xd8, TL0=0xef;
TR0=1;
while(1)
{
zdjs=0;
dpjs++; yj=sound[dpjs];
dpjs++; jp=sound[dpjs];
while(zdjs!=jp)
{
if(yj!=0xff)
{
if(yj!=0)
{
voice=!voice;
del(yj);
}
else
{
dpjs=0;
break;
}
}
else
{
voice=0;
del(jp);
}
}
}
}
time0() interrupt 1 using 1
{
TH0=0xd8, TL0=0xef;
zdjs++;
}
del(yj)
{
uchar yj2=2;
while(yj!=0)
{
while(yj2!=0)
{
yj2--;
}
yj2=2;
yj--;
}
}
2# tyw |
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