所有習(xí)題和答案文本項(xiàng)目七

1、項(xiàng)目七1、原理圖：源代碼：0000H MAIN0030HAJMPMAIN:MOVDPTR,#TABMOV MOV MOV CM: MOVMOVR1,#0FEH R3,#8 R4,#56 R5,#10 R3,#8 R2,#0 P0,#0FFH A,R2A,P2,AC1:C8:MOV MOV MOV MOVC MOV INC R2 MOV MOV ACALL RL A MOV DJNZ MOVDJNZTRA,R1 P0,AD5MSR1,A R3,C8 R3,#8R5,C1INC DPLDJNZ AJMPR4,CMMAIND5MS:MOVR6,#10MOV DJNZ DJNZRETR7,#248R7

2、,$ R6,$-4TAB:DB DB DB DB DB DBDBDB00H,00H,00H,00H,00H,00H,00H,00H00H,00H,1FH,28H,48H,28H,1FH,00H ;A00H,00H,20H,40H,7FH,40H,20H,00H ;T00H,00H,36H,49H,49H,49H,36H,00H ;800H,00H,32H,49H,49H,49H,3EH,00H ;900H,00H,3EH,41H,41H,41H,22H,00H ;C00H,00H,72H,51H,51H,51H,4EH,00H ;500H,00H,00H,00H,21H,7FH,01H,00H

3、 ;1END2、原理圖：源代碼：CNTA EQU 30H COUNT EQU 31H00H LJMP START0BH LJMP T0X30HSTART: MOV CNTA,#00HMOV COUNT,#00H MOV TMOD,#01HMOV TH0,#(65536-4000) / 256 MOV TL0,#(65536-4000) MOD 256 SETB TR0SETB ET0 SETB EAWT: JB P3.0,WT MOV R6,#5 MOV R7,#248 D1: DJNZ R7,$ DJNZ R6,D1JB P3.0,WT INC COUNTMOV A,COUNT CJNE A

4、,#03H,NEXT MOV COUNT,#00H NEXT: JNB P3.0,$SJMP WTT0X: NOPMOV TH0,#(65536-4000) / 256 MOV TL0,#(65536-4000) MOD 256 MOV DPTR,#TABMOVTAMOVC A,MOV P0,ATRMOV DPTR,#GRAPH MOV A,COUNT MOV B,#8MUL ABADDTAMOVC A,MOV P2,A INC CNTATRMOVTACJNE A,#8,NEX MOV CNTA,#00HNEX: RETITAB: DB 0FEH,0FDH,0FBH,0F7H,0EFH,0DF

5、H,0BFH,07FH GRAPH: DB 3CH,42H,81H,81H,81H,81H,42H,3CHDB 00H,3CH,42H,42H,42H,42H,3CH,00HDB 00H,00H,18H,24H,24H,18H,00H,00HEND3、原理圖：源代碼：0000H MAIN0030HAJMPMAIN:MOVDPTR,#TABMOV MOV CM: MOVMOV C1: MOV C16: MOVMOV CLRP3.0 MOV MOVC MOV INC R2 MOV MOVC MOV INC R2 MOV INC R1ACALLR1,#00H R4,#48 R5,#5 R3,#16

6、R2,#0 P0,#00HP2,#00HA,R2A, P0,ATRA,R2A, P2,ATRP1,R1D1MSACALL DJNZ MOVDJNZD1MS R3,C16 R3,#16R5,C1INC DPTRINC DPTRDJNZAJMPR4,CMMAIND1MS:MOVR6,#2MOV DJNZ DJNZ RETTAB:DBR7,#248 R7,$R6,$-4000H ,000H ,000H ,000H ,000H ,000H ,000H ,000H ,000H ,000H ,000H ,000H ,000H ,000H ,000H ,000H ; DB000H ,000H ,000H ,

7、000H ,000H ,000H ,000H ,000H ,000H ,000H ,000H ,000H ,000H ,000H ,000H ,000H ; DB000H ,000H ,000H ,000H ,000H ,010H ,080H ,010H ,088H ,010H ,088H ,010H ,088H ,010H ,0F8H ,01FH ; DB088H ,010H ,088H ,010H ,088H ,010H ,088H ,010H ,080H ,010H ,000H ,010H ,000H ,000H ,000H ,000H ;王 DB000H ,000H ,000H ,00

8、0H ,000H ,002H ,0A0H ,002H ,0A0H ,002H ,0A0H ,002H ,0F8H ,01FH ,000H ,000H ; DB000H ,000H ,0F8H ,01FH ,0A0H ,002H ,0A0H ,002H ,0A0H ,002H ,000H ,002H ,000H ,000H ,000H ,000H ;非 END4、原理圖：源代碼：0000H RS EQU P2.2 RW EQU P2.1EEQU P2.0;確定具體硬件的連接方式;確定具體硬件的連接方式;確定具體硬件的連接方式MOV P1,#00000001B ;清屏并光標(biāo)復(fù)位ACALL ENAB

9、LE;調(diào)用寫入命令子程序MOV P1,#00111000B ;設(shè)置顯示模式:8 位 2 行 5x7 點(diǎn)陣ACALL ENABLE;調(diào)用寫入命令子程序MOV P1,#00001111B ;顯示器開、光標(biāo)開、光標(biāo)允許閃爍ACALL ENABLE;調(diào)用寫入命令子程序MOV P1,#00000110B ;文字不動，光標(biāo)自動右移ACALL ENABLE;調(diào)用寫入命令子程序MOV P1,#85HACALL ENABLE;寫入顯示起始地址（第一行第 6 個位置）;調(diào)用寫入命令子程序MOV P1,#10100110B ;字母 A 的代碼SETB RS CLR RW CLR EACALL DELAYSETB E

10、;RS=1;RW=0 準(zhǔn)備寫入數(shù)據(jù);E=0 執(zhí)行顯示命令;判斷液晶模塊是否忙?;E=1 顯示完成,程序停車MOV P1,#87HACALL ENABLE;寫入顯示起始地址（第一行第 8 個位置）;調(diào)用寫入命令子程序MOV P1,#11000100B ;字母 A 的代碼SETB RS;RS=1CLR RW CLR EACALL DELAYSETB E;RW=0 準(zhǔn)備寫入數(shù)據(jù);E=0 執(zhí)行顯示命令;判斷液晶模塊是否忙?;E=1 顯示完成,程序停車MOV P1,#89HACALL ENABLE;寫入顯示起始地址（第一行第 10 個位置）;調(diào)用寫入命令子程序MOV P1,#11010100B ;字母

11、A 的代碼SETB RS CLR RW CLR EACALL DELAYSETB E;RS=1;RW=0 準(zhǔn)備寫入數(shù)據(jù);E=0 執(zhí)行顯示命令;判斷液晶模塊是否忙?;E=1 顯示完成,程序停車MOV P1,#0C5HACALL ENABLE;寫入顯示起始地址（第二行第 6 個位置）;調(diào)用寫入命令子程序MOV P1,#11001001B ;字母 A 的代碼SETB RS CLR RW CLR EACALL DELAYSETB E;RS=1;RW=0 準(zhǔn)備寫入數(shù)據(jù);E=0 執(zhí)行顯示命令;判斷液晶模塊是否忙?;E=1 顯示完成,程序停車MOV P1,#0C7HACALL ENABLE;寫入顯示起始地址

12、（第二行第 8 個位置）;調(diào)用寫入命令子程序MOV P1,#11011001B ;字母A 的代碼SETB RS CLR RW CLR EACALL DELAYSETB E;RS=1;RW=0 準(zhǔn)備寫入數(shù)據(jù);E=0 執(zhí)行顯示命令;判斷液晶模塊是否忙?;E=1 顯示完成,程序停車AJMP $ ENABLE:CLR RS CLR RW CLR EACALL DELAY SETB ERET DELAY:MOV P1,#0FFH CLR RSSETB RW;寫入控制命令的子程序;判斷液晶顯示器是否忙的子程序CLR E NOP SETB EJB P1.7,DELAY RETEND5、原理圖：;如果 P1.

13、7 為表示忙就循環(huán)等待源代碼：0MAIN:RS BIT P2.2 RW BIT P2.1 E BIT P2.0LCALL INITIAL_LCDMOV A,#10000000B;第一行LCALLMANDLCALL WRITE_CHAR1MOV A,#11000000B;第二行LCALLMANDLCALL WRITE_CHAR2 SJMP $WRITE_CHAR1: MOV R2,#16MOV DPTR,#DISP1 LOOP1:MOV A,#00HMOVC A,INC DPTRTRLCALL WRITE_DATA DJNZ R2,LOOP1RET WRITE_CHAR2:MOV R2,#16MOV DPTR,#DISP2 LOOP2:MOV A,#00HMOVC A,INC DPTRTRLCALL WRITE_DATA DJNZ R2,LOOP2RET INITIAL_LCD:MOV A,#38H;初始化LCALL MOV A,#0EH LCALL MOV A,#06H LCALL MOV A,#01H LCALLRETMAND:CLR E CLR RS CLR RW MOV P1,A