畢業(yè)設(shè)計(jì)(論文)-基于單片機(jī)的病房呼叫控制系統(tǒng)設(shè)計(jì)

實(shí)用文檔基于單片機(jī)的病房呼叫控制系統(tǒng)設(shè)計(jì)目錄HYPERLINKbingfanghujiao"); write_string(2,0,"wubingren"); }/*********************定時(shí)器0、定時(shí)器1初始化******************/voidtime0_init() { EA=1; TMOD=0X01; ET0=1; TR0=1;}ucharkey_can; /***************無(wú)線(xiàn)控制****************/voidPT2272(){ key_can=20; if(pt2272_a==1) key_can=1; if(pt2272_b==1) key_can=2; if(pt2272_c==1) key_can=3; if(pt2272_d==1) key_can=4; } voidkey_qx(){ staticucharkey_new; key_quxiao=1; if(key_quxiao==0) { delay_1ms(1); if((key_quxiao==0)&&(key_new==1)) { key_new=0; key_can=9; } } else key_new=1; } /**********************按鍵處理函數(shù)************************/voidkey_with(){ uchari; if(key_can<=4) { flag_en=1; for(i=0;i<4;i++) { if(dis_lcd[i]==table_num[key_can]) { flag_en=0; } } if(br_geshu<4) if(flag_en==1) { if(br_geshu==0) write_string(2,0,""); br_geshu++; for(i=3;i>0;i--) { dis_lcd[i*2]=dis_lcd[i*2-2]; dis_lcd[i*2+1]=dis_lcd[i*2-1]; } dis_lcd[0]=table_num[key_can]; write_string_ge(2,0,dis_lcd,br_geshu*2); } } if(key_can==9) { if(br_geshu>0) { dis_lcd[br_geshu*2]=''; br_geshu--; write_string(2,0,""); write_string_ge(2,0,dis_lcd,br_geshu*2); if(br_geshu==0) { write_string(2,0,"wubingren"); } } }}/*****************主函數(shù)********************/voidmain(){ time0_init(); init_1602(); while(1) { PT2272(); key_qx(); if(key_can<10) key_with(); if(flag_300ms==1) { flag_300ms=0; if(br_geshu>0) beep=~beep; else beep=1; } }}/**************定時(shí)器0中斷程序*****************/voidtime0()interrupt1{ staticuchar