8X - 8点阵动态广告牌课程设计报告 - 图文(4)

DL512: MOV R2,#0FFH LOOP1: DJNZ R2,LOOP1 RET

DL10MS: MOV R3,#14H ;延时10MS LOOP2: LCALL DL512 DJNZ R3,LOOP2 RET DL5S: MOV P0,#00H MOV P2,#00H MOV P3,#00H RETI

KEYWORK: MOV P1,#0FFH ;按键服务子程序 JNB P1.0,KEY1 JNB P1.1,KEY2 JB 20H,MUSIC JB 21H,DL5S KEYRET: RET KEY1: LCALL DL10MS ;按键检测子程序 JB P1.0,KEYRET SETB 20H CLR 21H RET KEY2: LCALL DL10MS JB P1.1,KEYRET SETB 21H CLR 20H RET

TAB: DB 00H,20H,20H,60H,20H,20H,3EH,01H;\广\ DB 00H,02H,22H,22H,3EH,22H,22H,02H;\工\ DB 00H,11H,12H,1CH,78H,16H,11H,01H;\大\ DB 00H,03H,7DH,55H,0FFH,54H,7CH,00H;\电\ DB 20H,0FFH,32H,28H,34H,0FFH,30H,2CH; \材\ DB 00H,00H,32H,4AH,46H,22H,00H; \ DB 00H,3CH,42H,42H,7EH;\Ｄ\ DB 00H,24H,42H,42H,3CH,00H;\Ｃ\ DB 5AH,5AH,5AH,7EH,00H; \ DB 18H,18H,18H; \

DB 62H,52H,4AH,46H,00H; \ DB 62H,52H,4AH,46H,00H; \ DB 62H,52H,4AH,46H,00H; \

DB 00H,20H,20H,60H,20H,20H,3CH,03H;\广\MUSIC: LJMP START ;音乐服务子程序 INC 20H

MOV TH0,#0D8H

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;字符编码表

START:

MUSIC0:

MUSIC1:

MUSIC5:

MUSIC2:

MOV TL0,#0EFH RETI

MOV SP,#50H MOV TL0,#0D8H MOV TH0,#0EFH MOV TMOD,#01H MOV IE,#82H

NOP

MOV DPTR,#DAT MOV 20H,#00H MOV B,#00H NOP

CLR A

MOVC A,@A+DPTR JZ END0

CJNE A,#0FFH,MUSIC5 LJMP MUSIC3 NOP

MOV R6,A INC DPTR MOV A,B

MOVC A,@A+DPTR MOV R7,A SETB TR0 NOP

CPL P1.4 MOV A,R6 MOV R3,A LCALL DEL MOV A,R7

CJNE A,20H,MUSIC2

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MOV 20H,#00H INC DPTR INC B LJMP MUSIC1 MUSIC3:

NOP

CLR TR0 MOV R2,#0DH MUSIC4:

NOP

MOV R3,#0FFH LCALL DEL DJNZ R2,MUSIC4 INC DPTR LJMP MUSIC1 END0:

NOP

CLR 20H CLR 21H LJMP MAIN DEL:

MOV P1,#0FFH

MOV P2,#00H NOP

DEL3: MOV R4,#02H DEL4: NOP

DJNZ R4,DEL4 NOP

DJNZ R3,DEL3 RET NOP

DAT: DB 18H,30H,1CH,10H DB 20H,40H,1CH,10H DB 18H,10H,20H,10H DB 1CH,10H,18H,40H

；音乐发音编码表

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DB 1CH,20H,20H,20H DB 1CH,20H,18H,20H DB 20H,80H,0FFH,20H DB 30H,1CH,10H,18H DB 20H,15H,20H,1CH DB 20H,20H,20H,26H DB 40H,20H,20H,2BH DB 20H,26H,20H,20H DB 20H,30H,80H,0FFH DB 20H,20H,1CH,10H END

3、元器件清单及所用工具和软件 所用工具和软件：

仪器设备：电脑，万用表，电烙铁及烙铁架，锡线，剪线钳，镊子，松香，跳线 软 件：Poteus 7 Professional

Keil uvision3

单片机下载软件（STC_ISP_V480）

元器件清单：

元件 电阻 电容 型号 10k 30pF 22uF 芯片底座 可自锁按键 晶振 单片机芯片 蜂鸣器 点阵 万能板

数量 9个 2个 1个 1个 1个 1个 1片 1个 1个 1块 40脚 六脚按键 12MHz STC89C52 无源 8*8LED 8*12小板块 13 直流电源底座 电池 四座 555牌 1个 4个 若干导线，锡线，杜邦线，钳子，排针，排孔

4、电路设计：（Proteus仿真通过）

8*8点阵广告牌设计仿真电路总原理图,如【图7】所示：

实物图正面

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【图7】8*8点阵广告牌设计仿真电路总原理图