for (j=0;j<4;j++) //收集四組數(shù)據(jù)
{
for (k=0;k<8;k++) //每組數(shù)據(jù)有8位
{
while (IRIN) //等 IR 變?yōu)榈碗娖剑^4.5ms的前導(dǎo)高電平信號(hào)。
{delay(1);}
while (!IRIN) //等 IR 變?yōu)楦唠娖?br />
{delay(1);}
while (IRIN) //計(jì)算IR高電平時(shí)長(zhǎng)
{
delay(1);
N++;
if (N>=30)
{ EX0=1;
return;} //0.14ms計(jì)數(shù)過長(zhǎng)自動(dòng)離開。
} //高電平計(jì)數(shù)完畢
IRCOM[j]=IRCOM[j] >> 1; //數(shù)據(jù)最高位補(bǔ)“0”
if (N>=8) {IRCOM[j] = IRCOM[j] | 0x80;} //數(shù)據(jù)最高位補(bǔ)“1”
N=0;
}//end for k
}//end for j
Y0=0;
switch(IRCOM[2])
{
case 0x09: Y0=0x01; break;
case 0x1D: Y0=0x02; break;
case 0x1F: Y0=0x03; break;
case 0x0D: Y0=0x04; break;
case 0x19: Y0=0x05; break;
case 0x1B: Y0=0x06; break;
case 0x11: Y0=0x07; break;
case 0x15: Y0=0x08; break;
case 0x17: Y0=0x09; break;
case 0x13: Y0=0x0a; break;
case 0x14: Y0=0x0b; break;
case 0x51: Y0=0x0c; break;
}