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#include<reg51.h> #include<intrins.h> sbit wr=P3^6; sbit cs=P3^0; unsigned char k,t; sbit key=P3^1; void keyscan(); unsigned char code Table[]={ 0x80,0x83,0x86,0x89,0x8d,0x90,0x93,0x96,0x99, 0x9c,0x9f,0xa2,0xa5,0xa8,0xab,0xae,0xb1,0xb4, 0xb7,0xba,0xbc,0xbf,0xc2,0xc5,0xc7,0xca,0xcc, 0xcf,0xd1,0xd4,0xd6,0xd8,0xda,0xdd,0xdf,0xe1, 0xe3,0xe5,0xe7,0xe9,0xea,0xec,0xee,0xef,0xf1, 0xf2,0xf4,0xf5,0xf6,0xf7,0xf8,0xf9,0xfa,0xfb, 0xfc,0xfd,0xfd,0xfe,0xff,0xff,0xff,0xff,0xff, 0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xfe,0xfd, 0xfd,0xfc,0xfb,0xfa,0xf9,0xf8,0xf7,0xf6,0xf5, 0xf4,0xf2,0xf1,0xef,0xee,0xec,0xea,0xe9,0xe7, 0xe5,0xe3,0xe1,0xde,0xdd,0xda,0xd8,0xd6,0xd4, 0xd1,0xcf,0xcc,0xca,0xc7,0xc5,0xc2,0xbf,0xbc, 0xba,0xb7,0xb4,0xb1,0xae,0xab,0xa8,0xa5,0xa2, 0x9f,0x9c,0x99,0x96,0x93,0x90,0x8d,0x89,0x86, 0x83,0x80,0x80,0x7c,0x79,0x76,0x72,0x6f,0x6c, 0x69,0x66,0x63,0x60,0x5d,0x5a,0x57,0x55,0x51, 0x4e,0x4c,0x48,0x45,0x43,0x40,0x3d,0x3a,0x38, 0x35,0x33,0x30,0x2e,0x2b,0x29,0x27,0x25,0x22, 0x20,0x1e,0x1c,0x1a,0x18,0x16,0x15,0x13,0x11, 0x10,0x0e,0x0d,0x0b,0x0a,0x09,0x08,0x07,0x06, 0x05,0x04,0x03,0x02,0x02,0x01,0x00,0x00,0x00, 0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00, 0x01,0x02,0x02,0x03,0x04,0x05,0x06,0x07,0x08, 0x09,0x0a,0x0b,0x0d,0x0e,0x10,0x11,0x13,0x15, 0x16,0x18,0x1a,0x1c,0x1e,0x20,0x22,0x25,0x27, 0x29,0x2b,0x2e,0x30,0x33,0x35,0x38,0x3a,0x3d, 0x40,0x43,0x45,0x48,0x4c,0x4e,0x51,0x55,0x57, 0x5a,0x5d,0x60,0x63,0x66,0x69,0x6c,0x6f,0x72, 0x76,0x79,0x7c,0x80}; void Delay(int Time_ms); void main() { k=4; cs=0; while(1) { wr=1; P0=Table[t]; wr=0; keyscan(); Delay(k); t++; if(t==256) t=0; } } void Delay(int Time_u) { int i; for(i=0;i<Time_u;i++) { _nop_(); } } void keyscan() { if(key==0) k=k+10; if(k==54) k=4; }
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