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#include
#define uchar unsigned char #define uint unsigned int ***it dula = P2^6; ***it wela = P2^7; uchar disnum,temp ,key; uchar code table_du[]={ 0x3f,0x06,0x5b,0x4f,0x66,0x6d, 0x7d,0x07,0x7f,0x6f,0x77,0x7c, 0x39,0x5e,0x79,0x71}; delay(uchar x); void main() { wela = 1; P0 = 0xfe; P3 = 0xf0; while(1) { temp = P3; temp=temp & 0xf0; if(temp != 0xf0) { delay(10); if(temp != 0xf0) { temp = P3; temp = 0x0f | temp; P3 = temp; key = P3; switch(key) { case 0xee: disnum =0; break; case 0xde: disnum =1; break; case 0xbe: disnum =2; break; case 0x7e: disnum =3; break; case 0xed: disnum =4; break; case 0xdd: disnum =5; break; case 0xbd: disnum =6; break; case 0x7d: disnum =7; break; case 0xeb: disnum =8; break; case 0xdb: disnum =9; break; case 0xbb: disnum = 10; break; case 0x7d: disnum = 11; break; case 0xe7: disnum =12; break; case 0xd7: disnum =13; break; case 0xb7: disnum =14; break; case 0x77: disnum =15; break; } } } P0=table_du[disnum]; dula = 1; dula = 0; } } delay(uchar x) { uchar a,b; for(a =x; a > 0; a--) for(b=200; b > 0; b--) {} |
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