单片机DS12C887时钟设计

case 6: if(ri==31) ri=1; write_nyr(9,ri); write_com(0x10); break; case 7: if(ri==32) ri=1; write_nyr(9,ri); write_com(0x10); break; case 8: if(ri==32) ri=1; write_nyr(9,ri); write_com(0x10); break; case 9: if(ri==31) ri=1; write_nyr(9,ri); write_com(0x10); break; case 10: if(ri==32) ri=1; write_nyr(9,ri); write_com(0x10); break; case 11: if(ri==31) ri=1; write_nyr(9,ri); write_com(0x10); break; case 12: if(ri==32)

}

}

ri=1; write_nyr(9,ri); write_com(0x10); break; } }

if(adjnum==7) { xq++; if(xq==7) xq=0; write_xq(xq); }

if(down==0) { delay(5); if(down==0) { beep=0; while(!down); beep=1; if(adjnum==1) { miao--; if(miao==-1) miao=59; write_sfm(9,miao); write_com(0x10); }

if(adjnum==2) { fen--; if(fen==-1) fen=59; write_sfm(6,fen); write_com(0x10);

}

if(adjnum==3) { shi--; if(shi==-1) shi=23; write_sfm(3,shi); write_com(0x10); }

if(adjnum==4) { nian--; if(nian==-1) nian=99; write_nyr(3,nian); write_com(0x10); }

if(adjnum==5) { yue--; if(yue==0) yue=12; write_nyr(6,yue); write_com(0x10); }

if(adjnum==6) { ri--; if(ri==0) { switch(yue) { case 1: ri=31; break;

case 2: ri=29; break; case 3: ri=31; break;

case 4: ri=30; break; case 5: ri=31; break; case 6: ri=30; break; case 7: ri=31; break; case 8: ri=31; break; case 9: ri=30; break; case 10: ri=31; break; case 11: ri=30; break;

case 12: ri=31;