定时器呢?
追答那就用20毫秒定时就可以了,
#include
#define uint unsigned int
uchar tick=0;
main
{
TMOD=0x01;
TH0=(65536-10000)/256;
TL0=(65536-10000)%256;
//delay 20ms
TR0=1;
while(TF0==0);
TR0=0;
TF0=0;
//delay 10s
TR0=1;
while(tick>=500)
{
while(TF0==0);
TF0=0;
TH0=(65536-10000)/256;
TL0=(65536-10000)%256;
tick++;
}
}
如果写成类似这种格式呢?
追答这是汇编,延时子程序,不是用定时器:
DLY20MS;
MOV R2,#10
DLY1:
MOV R3,#250
DJNZ R3,$
DJNZ R2,DLY1
RET
DLY10S:
MOV R2,#100
DLY1:
MOV R3,#100
DLY2:
MOV R4,#249
DJNZ R4,$
DJNZ R3,DLY2
DJNZ R2,DLY1
RET