- #include <reg52.h>
- #define uchar unsigned char
- #define uint unsigned int sbit beep=P1^0; unsigned int C;
- #define L1 262
- #define L2 284
- #define L3 311
- #define L4 349
- #define L5 392
- #define L6 440
- #define L7 494
- #define Z1 523
- #define Z2 587
- #define Z3 659
- #define Z4 698
- #define Z5 784
- #define Z6 880
- #define Z7 987
- #define H1 1046
- #define H2 1174
- #define H3 1318
- #define H4 1396
- #define H5 1567
- #define H6 1760
- #define H7 1975 void delay();
- unsigned code GP[]={Z6,Z7,H1,Z7,H1,H3,Z7,Z3,Z6,Z5,Z6,H1,Z5,
- Z3,Z3,Z4,Z3,H4,H1,Z3,H1,H1,Z7,Z4,Z4,Z7,
- Z7,Z6,Z7,H1,Z7,H1,H3,Z7,Z3,Z6,Z5,Z6,H1,
- Z5,Z2,Z3,Z4,H1,Z7,H1,H2,H2,H3,H1,H1,Z7,
- Z6,Z6,Z7,Z5,Z6,H1,H2,H3,H2,H3,H5,H2,H1,
- H1,Z7,H1,H3,H3,Z6,Z7,H1,Z7,H1,H2,H1,Z5,
- Z5,H4,H3,H2,H1,H3,H3,H3,H6,H6,H5,H5,H3,
- H2,H1,H1,H2,H1,H2,H5,H3,H3,H6,H6,H5,H5,
- H3,H2,H1,H1,H2,H1,H2,Z7,Z6,Z6,0xff};
- unsigned code JP[]={4,4,/**/12,4,8,8,/**/20,8,/**/12,4,8,8,
- 20,4,4,/**/12,4,8,8,/**/20,4,4,/**/12,4,8,8,
- /**/20,4,4,/**/12,4,8,8,/**/20,8,/**/12,4,8,8,
- /**/20,4,4,/**/8,4,12,3,1,/**/12,4,12,/**/4,4, 4,4,8,8,/**/20,4,4,/**/12,4,8,8,/**/24,/**/
- 8,4,4,8,8,/**/24,/**/4,4,8,4,4,8,/**/12,4,12,
-
- /**/8,8,8,4,4,/**/16,8,/**/12,4,12,4,/**/4,4,12,8,
- /**/12,4,8,8,/**/16,8,/**/12,4,12,4,/**/4,4,12,8,
- /**/12,4,8,3,1,/**/32};
- void main()
- { uchar i,j;
- TMOD=0x00;
- EA=1; // 開總中斷
- ET0=1; // 開 t0 中斷
- while(1)
- { i=0;
- while(GP[i]!=0xff)
- {C=460830/GP[i]; TH0=(8192-C)/32; TL0=(8192-C)%32;
- TR0=1;// 開定時器 0
- for(j=0;j<JP[i];j++)
- {delay();} TR0=0; i++;
- }
- beep=0;
- }
- }
- void delay() // 延時 15.6ms
- {
- uint i,j; for(i=70;i>0;i--)
- {for(j=110;j>0;j--);}
- }
- void T0_time()interrupt 1
- { TR0=0;
- beep=!beep;
- TH0=(8192-C)/32;
- TL0=(8192-C)%32;
- TR0=1;
- }
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