【文章內(nèi)容簡介】 LL DHZ RET。=======================================================。測量界面子程序。=======================================================celianjieguo: LCALL CLEAR_GLCD MOV ADDR1,00H MOV N1,08H MOV DPTR,CELIANG1 CALL DHZ MOV ADDR1,10H MOV N1,08H MOV DPTR,CELIANG2 CALL DHZ MOV ADDR1,08H MOV N1,08 MOV DPTR,CELIANG3 CALL DHZ MOV ADDR1,18H MOV N1,08 MOV DPTR,CELIANG4 CALL DHZ RET。=======================================================。8279初始化子程序。=======================================================INI_8279: MOV DPTR,8101H MOV A,00H MOVX @DPTR,A MOV A,32H MOVX @DPTR,A MOV A,0DFH MOVX @DPTR,A RET。=======================================================。鍵盤設(shè)定閾值子程序。=======================================================YUZHI: LCALL SHEDING MOV 44H,00H 。 44H單元存按鍵次數(shù)，先清0。******************鍵盤按鍵存儲(chǔ)空間********************* MOV 55H,00H 。存入三次設(shè)定值 MOV 56H,00H MOV 57H,00H MOV 50H,00H 。 存閾值百位 MOV 51H,00H 。 存閾值十位和個(gè)位。**********************************************************KEY_09: MOV DPTR,8101H 。 判斷是否有鍵按下 MOVX A,@DPTR ANL A,07H CJNE A,00H,LPP1 AJMP KEY_09。=====================================================。各個(gè)鍵的處理。=====================================================LPP1: MOV DPTR,8100H MOVX A,@DPTRB0: CJNE A,0D8H,B1 AJMP KK0B1: CJNE A,0D0H,B2 AJMP KK1B2: CJNE A,0D1H,B3 AJMP KK2B3: CJNE A,0D2H,B4 AJMP KK3B4: CJNE A,0C8H,B5 AJMP KK4B5: CJNE A,0C9H,B6 AJMP KK5B6: CJNE A,0CAH,B7 AJMP KK6B7: CJNE A,0C0H,B8 AJMP KK7B8: CJNE A,0C1H,B9 AJMP KK8B9: CJNE A,0C2H,BA AJMP KK9BA: CJNE A,0C3H,BE AJMP KKA 。A鍵按下BE: CJNE A,0DAH,YUZHI AJMP KKEKK0: MOV 5BH,00H 。 5BH存鍵值 AJMP COUNT_1KK1: MOV 5BH,01H AJMP COUNT_1KK2: MOV 5BH,02H AJMP COUNT_1KK3: MOV 5BH,03H AJMP COUNT_1KK4: MOV 5BH,04H AJMP COUNT_1KK5: MOV 5BH,05H AJMP COUNT_1KK6: MOV 5BH,06H AJMP COUNT_1KK7: MOV 5BH,07H AJMP COUNT_1KK8: MOV 5BH,08H AJMP COUNT_1KK9: MOV 5BH,09H AJMP COUNT_1KKA: MOV 5BH,0AH AJMP COUNT_1 。A鍵按下KKE: AJMP END_PCOUNT_1: MOV A,44H 。 44H存按鍵次數(shù) INC A MOV 44H,A CJNE A,02H ,CW1 。 按鍵次數(shù)是否達(dá)到2次 AJMP YUZHI 。 三次按鍵則重設(shè)閾值CW1: ADD A,54H 。 鍵盤按鍵存儲(chǔ)空間 MOV R0,ACW2: CLR A MOV A,5BH MOV @R0,A LCALL PRO_SHOW AJMP KEY_09 RET。*。*****************************************************。 0 1 2 3 4 5 6 7 8 9 A B C D E F以及各個(gè)功能鍵的鍵值表。******************************************************TAB_1:DB 0D8H,0D0H,0D1H,0D2H,0C8H,0C9H,0CAH,0C0H,0C1H,0C2HDB 0C3H,0CBH,0D3H,0DBH,0DAH,0D9H。********************************************。=========================================。各次報(bào)警值按鍵處理子程序。=========================================PRO_SHOW: NOP PR_1: CLR A 。 一次按鍵 MOV A,44H CJNE A,01H,PR_2 MOV R0,55H MOV A,@R0 SUBB A,06H JNC SS MOV 51H,55H MOV A,55H MOV ADDR1,0AH LCALL SHUZIXIANSHI SJMP END_P PR_2: CLR A 。 二次按鍵 MOV A,55H SWAP A ADD A,56H MOV 51H,A MOV A,55H MOV ADDR1,09H LCALL SHUZIXIANSHI MOV A,56H MOV ADDR1,0AH LCALL SHUZIXIANSHI AJMP END_P END_P: RET SS: LJMP YUZHI。===================