微机课程设报告——点阵广告牌

1、一、设计题目点阵滚动广告牌二、设计内容 1利用单片机I/O口或以扩展锁存器的方式控制点阵显示。 2掌握单片机与16×16点阵块之间接口电路设计及编程。 3利用实验系统16×16点阵实验单元，要求编制程序实现汉字点阵从下倒上滚动循环显示。三、设计原理及方案1、硬件设计原理图实验线路连接：1对于后缀名含有“H2用一8芯扁平电缆把点阵单元总线接口与系统单元总线D0D7任一接口相连。3用一根双头实验线把点阵单元的片选信号CS插孔与译码输出插孔Y0相连。4用一根双头实验线把点阵单元的写信号WR插孔与系统控制信号插孔WR相连。硬件电路图： 2、软件设计流程图四、设计方案源程序 CODE

2、 SEGMENT ASSUME CS:CODE,DS:CODE,ES:CODE ORG 3AD2H;=HE14: JMP STARTLED0 equ 0ffe3h ;列代码高段(字形)高八位接口地址LED1 equ 0ffe0h ;列代码低段(字形)低位接口地址JED0 equ 0ffe2h ;行扫描高段(字位)高八位接口地址JED1 equ 0ffe1h ;行扫描低段(字位)低八位接口地址;=START: JMP XB13;=x01a: mov BUF+2,00h ;清列值x023: mov bx,OFFSET BUF ;取列值 mov al,02h xlat cmp al,10h ;减16

3、(十进制数) jc x0d2 ;末满16列继续扫描下一列 ret ;本次扫描完毕返回主程序x0d2: MOV dx,0002H MOV ah,00h MUL dx ;当前列乘02 mov cx,ax call xb1f ;= 送扫描代码 = mov dx,led0 ;列代码送高八位锁存器 OUT DX,AL MOV DX,led1 ;列代码送低八位锁存器 mov al,ah OUT DX,Al ;= 取行代码 = mov bx,offset buf mov al,02h xlat inc al mov BUF+2,al ;列指针加1 mov ah,00h mov cx,ax mov al,01

4、h jmp x083x07e: SAL ax,1x083: loop x07e mov dx,jed0 ;行代码送高八位锁存器 OUT DX,AL MOV DX,jed1 ;行代码送低八位锁存器 mov al,ah OUT DX,Al mov cx,0040h ;当前行锁定显示250u秒 loop $ mov al,00h ;关闭显示 mov dx,jed0 out dx,al mov dx,jed1 OUT dx,al jmp x023 ;继续下1行;=x097: mov al,00h ;关闭显示 mov dx,jed0 out dx,al mov dx,jed1 OUT dx,al ;=x

5、0a0: mov al,00h ;清扫描个数存放器 mov BUF+3,al ;从第一个开始x0a2: mov bx,OFFSET buf ;取当前扫描个数 mov al,03h xlat cmp al,16h ;减16(十进制数) jnc x0a0 ;满16个返回从第一个开始 ;= MOV ah,00H mov dx,0020h mul dx mov bx,OFFSET stls add ax,bX mov BUF,aL MOV BUF+1,AH ;= mov al,00h ;清扫描次数存放器 mov BUF+4,alx0bd: mov bx,OFFSET buf ;取当前扫描个数 mov

6、al,04h xlat cmp al,64h ;减64(十进制数) jnc x0cf ;= call x01a ;扫描显示当前字体 ;= mov bx,OFFSET buf ;扫描次数加1 mov al,04h xlat inc al mov BUF+4,al jmp x0bd ;=x0cf: mov bx,OFFSET BUF ;扫描个数加1 mov al,03h xlat inc al mov BUF+3,al jmp x0a2;=STLS:;欢 DB 00H,00H,00H,00H,00H,00H,00H,00H,00H,00H,00H,00H,00H,00H,00H,00H DB 00

7、H,00H,00H,00H,00H,00H,00H,00H,00H,00H,00H,00H,00H,00H,00H,80H DB 00H,00H,00H,00H,00H,00H,00H,00H,00H,00H,00H,00H,00H,00H,00H,00HDB 00H,00H,00H,00H,00H,00H,00H,00H,00H,00H,00H,00H,00H,80H,00H,80H DB 00H,00H,00H,00H,00H,00H,00H,00H,00H,00H,00H,00H,00H,00H,00H,00HDB 00H,00H,00H,00H,00H,00H,00H,00H,00H,

8、00H,00H,80H,00H,80H,0FCH,80H DB DB00H,00H,00H,00H,00H,00H,00H,00H,00H,00H,00H,00H,00H,00H,00H,00H DB 00H,00H,00H,00H,00H,00H,00H,00H,00H,80H,00H,80H,0FCH,80H,04H,0FCH DB 00H,00H,00H,00H,00H,00H,00H,00H,00H,00H,00H,00H,00H,00H,00H,00H DB 00H,00H,00H,00H,00H,00H,00H,80H,00H,80H,0FCH,80H,04H,0FCH,45H,0

9、4H DB 00H,00H,00H,00H,00H,00H,00H,00H,00H,00H,00H,00H,00H,00H,00H,00H DB 00H,00H,00H,00H,00H,80H,00H,80H,0FCH,80H,04H,0FCH,45H,04H,46H,48H DB 00H,00H,00H,00H,00H,00H,00H,00H,00H,00H,00H,00H,00H,00H,00H,00H DB 00H,00H,00H,80H,00H,80H,0FCH,80H,04H,0FCH,45H,04H,46H,48H,28H,40H DB 00H,00H,00H,00H,00H,00

10、H,00H,00H,00H,00H,00H,00H,00H,00H,00H,00H DB 00H,80H,00H,80H,0FCH,80H,04H,0FCH,45H,04H,46H,48H,28H,40H,28H,40H DB 00H,00H,00H,00H,00H,00H,00H,00H,00H,00H,00H,00H,00H,00H,00H,80H DB 00H,80H,0FCH,80H,04H,0FCH,45H,04H,46H,48H,28H,40H,28H,40H,10H,40H DB 00H,00H,00H,00H,00H,00H,00H,00H,00H,00H,00H,00H,00

11、H,80H,00H,80H DB 0FCH,80H,04H,0FCH,45H,04H,46H,48H,28H,40H,28H,40H,10H,40H,28H,40H DB 00H,00H,00H,00H,00H,00H,00H,00H,00H,00H,00H,80H,00H,80H,0FCH,80H DB 04H,0FCH,45H,04H,46H,48H,28H,40H,28H,40H,10H,40H,28H,40H,24H,0A0H DB 00H,00H,00H,00H,00H,00H,00H,00H, 00H,80H,00H,80H,0FCH,80H,04H,0FCH DB 45H,04H

12、,46H,48H,28H,40H,28H,40H,10H,40H,28H,40H,24H,0A0H,44H,0A0H DB 00H,00H,00H,00H,00H,00H,00H,80H,00H,80H,0FCH,80H,04H,0FCH,45H,04H DB 46H,48H,28H,40H,28H,40H,10H,40H,28H,40H,24H,0A0H,44H,0A0H,81H,10H DB 00H,00H,00H,00H,00H,80H,00H,80H,0FCH,80H,04H,0FCH,45H,04H,46H,48H DB 28H,40H,28H,40H,10H,40H,28H,40H

13、,24H,0A0H,44H,0A0H,81H,10H,01H,08H DB 00H,00H,00H,80H,00H,80H,0FCH,80H,04H,0FCH,45H,04H,46H,48H,28H,40H DB 28H,40H,10H,40H,28H,40H,24H,0A0H,44H,0A0H,81H,10H,01H,08H,02H,0EH ;迎 DB 00H,00H,41H,84H,26H,7EH,14H,44H,04H,44H,04H,44H,0F4H,44H,14H,0C4H DB 15H,44H,16H,54H,14H,48H,10H,40H,10H,40H,28H,46H,47H,

14、0FCH,00H,00H;光 DB 01H,00H,21H,08H,11H,0CH,09H,10H,09H,20H,01H,04H,0FFH,0FEH,04H,40H DB 04H,40H,04H,40H,04H,40H,08H,40H,08H,42H,10H,42H,20H,3EH,40H,00H;临 DB 10H,80H,10H,80H,51H,04H,51H,0FEH,52H,00H,54H,80H,58H,60H,50H,24H DB 57H,0FEH,54H,44H,54H,44H,54H,44H,54H,44H,14H,44H,17H,0FCH,14H,04H ;嘉 DB 01H,

15、08H,7FH,0FCH,01H,00H,3FH,0F8H,00H,00H,1FH,0F0H,10H,10H,1FH,0F0H DB 04H,44H,0FFH,0FEH,10H,08H,7EH,0FCH,12H,88H,12H,88H,2AH,0F8H,44H,88H;兴 DB 02H,00H,02H,08H,21H,08H,11H,10H,19H,10H,09H,20H,00H,20H,00H,44H DB 0FFH,0FEH,00H,00H,00H,00H,04H,40H,0CH,20H,10H,18H,20H,0CH,40H,04H;学 DB 22H,08H,11H,08H,11H,10

16、H,00H,20H,7FH,0FEH,40H,02H,80H,04H,1FH,0E0H DB 00H,40H,01H,84H,0FFH,0FEH,01H,00H,01H,00H,01H,00H,05H,00H,02H,00H;院 DB 00H,80H,78H,40H,4FH,0FEH,54H,02H,58H,14H,63H,0F8H,50H,00H,48H,08H DB 4FH,0FCH,48H,0A0H,68H,0A0H,50H,0A0H,41H,22H,41H,22H,42H,1EH,4CH,00H;！ DB 00H,00H,00H,00H,00H,00H,00H,00H,10H,00H,

17、10H,00H,10H,00H,10H,00H DB 10H,00H,10H,00H,10H,00H,10H,00H,10H,00H,00H,00H,10H,00H,00H,00H;=xb13: MOV CX,0000H MOV AX,0000H MOV BX,OFFSET STLS ;取汉字表首址 MOV AX,BX MOV BUF,AL MOV BUF+1,AH ;存汉字表指针单元 JMP X097;=取与当前列对应的汉字代码=XB1F: MOV BX,OFFSET BUF ;取当前汉字首址 MOV AX,BX ADD AX,CX ;当前汉字首址加列值 MOV BX,AX MOV AX,B

18、X ;取当前列扫描代码 ;= MOV Bl,00H MOV Cl,Al ROL CL,1 JNC XB_0 OR BL,01hXB_0: ROL CL,1 JNC XB_2 or bl,02hXB_2: ROL CL,1 JNC XB_3 or bl,04hXB_3: ROL CL,1 JNC XB_4 or bl,08hXB_4: ROL CL,1 JNC XB_5 or bl,10hXB_5: ROL CL,1 JNC XB_6 or bl,20hXB_6: ROL CL,1 JNC XB_7 or bl,40hXB_7: ROL CL,1 JNC XB_8 or bl,80hXB_8:

19、mov al,bl ret;=BUF DB ?,?,?,?,?,?CODE ENDS END HE14五、设计实施结果当实验程序装载完毕，实验运行时，“欢送光临嘉兴学院字样在点阵显示模块上从下向上移动，并循环显示。六、总结以前我学习汇编语言时感觉很有难度。当知道要做课程设计的时候心里面感觉有些害怕和担忧， 担忧自己不会或者做不好。但是当真的要做的时候也只好进自己作大的努力去做。我在这个过程中有很多自己的感受，那就是感觉汇编语言真的是很神奇，街上的滚动广告牌我自己竟也能设计出来。我们从开始的担忧和害怕渐渐变成了享受，看着自己做出来的东西，心里面的感觉真的很好。虽然我们做的东西都还很简单，但是毕竟是我们自