單片機(jī)原理實(shí)驗(yàn)報(bào)告(編輯修改稿)
2025-04-19 05:53 本頁面
【文章內(nèi)容簡介】 碼管上顯示的數(shù)字，具體控制情況為，乙機(jī)按鍵按一次，甲機(jī)數(shù)碼管顯示“1”，按鍵按兩下，數(shù)碼管顯示“2”，按鍵按三下，數(shù)碼管顯示“3”，按鍵按四下，數(shù)碼管顯示“4”。只需通過計(jì)數(shù)按鍵按下次數(shù)，沒按下一次，計(jì)數(shù)值加1，同時(shí)啟動一次發(fā)送即可。甲機(jī)沒啟動一次接受，子程序中就將需要顯示的數(shù)字所對應(yīng)的相應(yīng)值傳送給P0端口的數(shù)碼管即可。程序框圖NYYN返 回清標(biāo)志位RI、TI取數(shù)并顯示串行口中斷按鍵松開？按鍵次數(shù)加一，計(jì)算編號按鍵按下？關(guān)中斷，發(fā)編號開中斷 開 始實(shí)驗(yàn)程序題（1）采用查詢方式：甲機(jī)（按鍵控制） ORG 0000H LJMP MAIN ORG 0030HMAIN:MOV SCON, 40H MOV PCON, 00H MOV TMOD, 20H MOV TL1,0F4H MOV TH1,0F4H SETB TR1NEXT:JNB ,L1SJMP NEXTNEXT1:JNB ,L2SJMP NEXT1NEXT2:JNB ,L3SJMP NEXT2NEXT3:JNB ,L4SJMP NEXT3L1:MOV A,00HMOV SBUF,AWAIT1:JBC TI,NEXT1SJMP WAIT1L2:MOV A,01HMOV SBUF,AWAIT2:JBC TI,NEXT2SJMP WAIT2L3:MOV A,02HMOV SBUF,AWAIT3:JBC TI,NEXT3SJMP WAIT3L4:MOV A,03HMOV SBUF,AWAIT4:JBC TI,NEXTSJMP WAIT4 END乙機(jī)（接受程序，實(shí)現(xiàn)燈的亮暗）ORG 0000H LJMP MAIN ORG 0080HMAIN:MOV SCON, 50H MOV PCON, 00H MOV TMOD, 20H MOV TL1,0F4H MOV TH1,0F4H SETB TR1WAIT:JBC RI,NEXT SJMP WAITNEXT:MOV A,SBUFCJNE A,00H,L2SETB CLR SJMP WAITL2:CJNE A,01H,L3 SETB CLR SJMP WAITL3:CJNE A,02H,L4SETB SETB SJMP WAITL4:CJNE A,03H,WAITCLR CLR SJMP WAITEND 題（1）采用中斷方式甲機(jī)（按鍵控制）ORG 0000HLJMP MAINORG 0003HLJMP L1ORG 0030HMAIN: MOV SCON, 40H MOV PCON, 00H MOV TMOD, 20H MOV TH1, 0F4H MOV TL1, 0F4H SETB TR1 MOV SP, 40H SETB IT0 SETB EA SETB EX0L2: SJMP L2 ORG 0200HL1: MOV A, P1 MOV SBUF, AWAIT: JBC TI, NEXT SJMP WAITNEXT: RETIEND乙機(jī)（接受程序，實(shí)現(xiàn)燈的亮暗）ORG 0000HLJMP MAINORG 0030HMAIN: MOV SCON, 50H MOV PCON, 00H MOV TMOD, 20H MOV TH1, 0F4H MOV TL1, 0F4H SETB TR1 MOV R1, 00H MOV P1, 0FFHWAIT: JBC RI, NEXT SJMP WAITNEXT: MOV A, SBUF INC R1 SJMP L1L1: MOV A,R1 SUBB A, 01H JZ L2 MOV A, R1 SUBB A, 02H JZ L3 MOV A, R1 SUBB A, 03H JZ L4 MOV A ,R1 SUBB A, 04H JZ L5L2: CLR SETB CLR RI SJMP WAITL3: CLR SETB CLR RI SJMP WAITL4: CLR CLR CLR RI SJMP WAITL5: SETB SETB CL
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