51單片機電機測速問題

void main()

{

init();

while(1) {

while(TL0 == 0x05) {

TR1 = 0;

TR0 = 0;

n = TH1 * 256 + TL1; //應該先讀出數據.

TH1 = 0x00; //再對各單元清零.

TL1 = 0x00;

TH0 = 0x00;

TL0 = 0x00;

TR1 = 1; //馬上啟動，繼續計數.

TR0 = 1;

wan = n/10000%10; //然後再慢慢算這些.

qian = n/1000%10;

bai = n/100%10;

shi = n%100/10;

ge = n%10;

}

display(wan, qian, bai, shi, ge);

}

}