單片機(jī)六位數(shù)字鐘程序畢業(yè)設(shè)計(jì)課程設(shè)計(jì)

1、RAM分配表單元地址用途30H10毫秒計(jì)時(shí)31H0.5秒計(jì)時(shí)32H秒計(jì)數(shù)器33H分計(jì)數(shù)器34H時(shí)計(jì)數(shù)器35H選位計(jì)數(shù)器位地址用途00H鍵已按下標(biāo)志01H秒節(jié)拍顯示標(biāo)志（兼被修改位閃動(dòng)標(biāo)志）G0000HLJMPSTAG000BHLJMPT0_SUVSTA:MOVSP#6FH設(shè)置堆棧MOVIE#82H允許T0中斷MOVTMOD#02H定時(shí)器方式2MOBTH0#06H定時(shí)時(shí)間500usMOVTL0#06HMOV30H#14H10ms計(jì)時(shí)初值M

2、OV31H#32H0.5s計(jì)時(shí)初值MOV32H#00H清秒計(jì)數(shù)器MOV33H#00H清分計(jì)數(shù)器MOV34H#00H清時(shí)計(jì)數(shù)器MOV35H#03H置選位計(jì)數(shù)器為非修改狀態(tài)SETBTR0啟動(dòng)定時(shí)器MAIN:MOVAP3取鍵盤LA10001111B屏蔽非鍵盤輸入位CJNEA#0FFHLOOP1有鍵按下轉(zhuǎn)LOOP1SJMPLOOP2無鍵按下，則跳過LOOP1:JB00HLOOP3有鍵已按下標(biāo)志，則跳過SETB00H無標(biāo)志置標(biāo)志后查鍵JBP3.4

3、LOOP4不是選位鍵轉(zhuǎn)加1鍵LJMPKEY0是選位鍵按下轉(zhuǎn)該鍵程序LOOP4:JBP3.5LOOP5不是選位鍵轉(zhuǎn)減1鍵SJMPKEY1是加1鍵按下轉(zhuǎn)該鍵程序LOOP5:JBP3.6LOOP2SJMPKEY2是減1鍵按下轉(zhuǎn)該鍵程序LOOP2:CLR00H無鍵按下清鍵已按下標(biāo)志LOOP3:MOVDPTR#TABLE置7段碼表格首址MOVC01H加閃信號(hào)MOVACC.7CMOVP1A送分個(gè)位段碼MOVA35HCJNEA#01HLOOP15分位

4、未被選轉(zhuǎn)JNB01HLOOP15無閃動(dòng)標(biāo)志轉(zhuǎn)LP1#7FH有閃動(dòng)標(biāo)志關(guān)顯示LOOP15:CLRP2.3顯示分個(gè)位LCALLDELYLP2#0FFHMOVA32H取秒十位顯示SWAPAANLA#0FHMOVCA@ADPTRMOVC01H加閃信號(hào)MOVACC.7CMOVP1A送秒十位段碼MOVA35HCJNEA#00HLOOP16秒位未被選轉(zhuǎn)JNB01HLOOP16無閃動(dòng)標(biāo)志轉(zhuǎn)LP1#7FH有閃動(dòng)標(biāo)志關(guān)顯示LOOP16:CLRP2.4顯示秒

5、十位LCALLDELYLP2#0FFH關(guān)顯示位碼MOVA32H取秒個(gè)位顯示ANLA#0FHMOVCA@ADPTRMOVC01H加閃信號(hào)MOVACC.7CMOVP1A送秒個(gè)位段碼MOVA35HCJNEA#00HLOOP17秒位未被選轉(zhuǎn)JNB01HLOOP17無閃動(dòng)標(biāo)志轉(zhuǎn)LP1#7FH有閃動(dòng)標(biāo)志關(guān)顯示LOOP17:CLRP2.5顯示秒個(gè)位LCALLDELYLP2#0FFH關(guān)顯示位碼LJMPMAINKEY0:INC35H選位鍵程序MOVA35