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感謝！正如大師所言。只需要控制兩個(gè)寄存器就可以用了。附上程序，方便后人。- #include<stc15.h>
- #include <intrins.h>
- #define uchar unsigned char
- #define uint unsigned int
- uint numt1;
- uchar flag;
- void init() /*************設(shè)置計(jì)時(shí)器2重載初值*****************/
- {
- T2L =(65536-50000)/256;
- T2H =(65536-50000)/256;
- AUXR|= 0X10; //計(jì)時(shí)器2啟動(dòng)運(yùn)行
- IE2|=0X04; //啟用定時(shí)器2中斷
- EA=1; //打開全局中斷開關(guān)
- }
- void main()
- {
- init();
- numt1=0;
- flag=0;
- while(1);
- }
- void T2_time()interrupt 12
- {
- numt1++;
- if(numt1>100)
- {
- flag=1;
- AUXR&=0X00; //計(jì)時(shí)器2停止運(yùn)行
- numt1=0;
- }
- }
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