- #include <reg52.h>
- #include <intrins.h>
- #define uchar unsigned char
- #define uint unsigned int
- uchar i=0;
- sbit SPK = P1^3;
- sbit K1 = P3^5;
- uchar code HI_LIST[]=
- {
- 0,266,229,232,233,236,238,240,241,242,244,245,246,247,248
- };
- uchar code LO_LIST[]=
- {
- 0,4,13,10,20,3,8,6,2,23,5,26,1,4,3
- };
- void T0_INT() interrupt 1
- {
- TL0 = LO_LIST[i];
- TH0 = HI_LIST[i];
- SPK = !SPK;
- }
- void DelayMS(uint ms)
- {
- uchar t;
- while(ms--)
- {
- for(t=0;t<120;t++);
- }
- }
- void main()
- {
- IE = 0x82;
- TMOD = 0x00;
- while(1)
- {
- while(K1==1);
- while(K1==0);
- for(i=1;i<15;i++)
- {
- TR0 = 1;
- DelayMS(500);
- TR0 = 0;
- DelayMS(50);
- }
- }
- }
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