简易led电子广告牌设计

1、精品资料推荐i电子与信息学院报告评分批改老师微机原理及其应用课程设计报告广告牌设计专业信息工程班级1学生姓名陈宗成实验台号6指导教师宁更新提交日期2009年2月27日精品资料推荐设计内容：实验箱上设有一个共阳极8X8点阵的红黄两色LE而示器。编程使LEES示器循环显示一条广告语，例如：北京你好。要求：广告语可以自己任意选择，但字数不少于3个；广告语的颜色红黄交替显示，例如：先显示红色广告语，再显示黄色广告语，如此交替循环；广告语中每个字符显示的时间由8253定时器控制，定时时间到显示下一个字符，设置每个字符显示的时间为数秒不等，可以自行设置；若键盘输入"R'则返回DOS结束程

2、序。硬件电路连接：11重要芯片功能说明：8*8LED显示器：三个片选端，分别为行片选，红色列片选，黄色列片选。8253可编程定时/计数器：本实验中只使用计数器0,并将其设置为工作方式0,16为计数。8255可编程并行接口：8255有3种工作方式，在8255中有一个控制字用来选择工作方式和A、B、C三个端口。D6D5工作方式00方式001方式110方式2111方式2本实验中使A口作为简单的输入口。做查询方式的输入信号使用程序流程图:主程序流程图CX10HPUSHCXCX88H取行代码，显示行黄片选有效*调用退出程序程序跳转子程序开始BXBXBXNNYY将BX指向“口”字?将BX指向“可”字?将B

3、X指向“乐”字?Y返回主程序延时子程序源程序及注释:ioportequ0c400h-0280hprothequioport+280hprotlrequioport+288hprotlyequioport+290hDATASEGMENTMESSDB'StrikeRreturntodos!',0AH,0DH,'$'min1DB00h,01h,02h,03h,04h,05h,06h,07hcountdb0KEDB80H,0FFH,82H,0B8H,0A8H,0B8H,80H,80HKOUDB00H,7EH,42H,42H,42H,42H,7EH,00HLEEDB02H

4、,14H,90H,0FFH,92H,0F4H,02H,00HDATAENDS;CODEASSUMESEGMENTCS:CODE,DS:DATA;START:MOVAX,DATAMOVDS,AXMOVDX,OFFSETMESSMOVAH,09INT21H;显示提示信息;agn_ke:movcx,0600hd2_ke:movah,01hpushcxmovcx,0008hmovsi,offsetmin1next_ke:moval,simovbx,offsetkexlatmovdx,prothoutdx,almoval,ahmovdx,protlroutdx,alshlah,01incsipushcx

5、movcx,0ffffhdelay2_ke:loopdelay2_kepopcxloopnext_kepopcxcalldelayloopd2_kemoval,00;得到第一行码;显示第一行红;延时movdx,protlroutdx,almovah,01;有无键按下int16hjzagn_koumovah,0int16hcmpal,52hjet1;检测8253，到时间就到JINGagn_kou:movcx,0600hd2_kou:movah,01hpushcxmovcx,0008hmovsi,offsetmin1next_kou:moval,simovbx,offsetkouxlat;得到第一

6、行码movdx,prothoutdx,almoval,ahmovdx,protlroutdx,al;显示第一行红shlah,01incsipushcxmovcx,0ffffhdelay2_kou:loopdelay2_kou;延时popcxloopnext_koupopcxcalldelayloopd2_koumoval,00movdx,protlroutdx,almovah,01;有无键按下int16hjzagn_ke1movah,0int16hcmpal,52ht1:jet2;检测8253，到时间就到niagn_ke1:movcx,0600hd2_ke1:movah,01hpushcxmo

7、vcx,0008hmovsi,offsetmin1next_ke1:moval,simovbx,offsetkexlat;得到第一行码movdx,prothoutdx,almoval,ahmovdx,protlroutdx,al;显示第一行红shlah,01incsipushcxmovcx,0ffffhdelay2_ke1:loopdelay2_ke1;延时popcxloopnext_ke1popcxcalldelayloopd2_ke1moval,00movdx,protlroutdx,almovah,01;有无键按下int16hjzagn_leemovah,0int16hcmpal,52h

8、t2:jetiao;检测8253，到时间就到haoagn_lee:movcx,0600hd2_lee:movah,01hpushcxmovcx,0008hmovsi,offsetmin1next_lee:moval,simovbx,offsetleexlat;得到第一行码movdx,prothoutdx,almoval,ahmovdx,protlroutdx,al;显示第一行红shlah,01incsipushcxmovcx,0ffffhdelay2_lee:loopdelay2_lee;延时popcxloopnext_leepopcxcalldelayloopd2_leemoval,00mo

9、vdx,protlroutdx,almovah,01;有无键按下int16hjzagn1_kemovah,0int16hcmpal,52hjetiaojmpagn1_ke;=tiao:jmpexit;=agn1_ke:movcx,0600h;agn1为显示黄色d1_ke:movsi,offsetmin1movah,01pushcxmovcx,0008hnext1_ke:moval,simovbx,offsetkexlatmovdx,prothoutdx,almoval,ahmovdx,protlyoutdx,alshlah,01incsipushcxmovcx,0ffffhdelay1_ke:

10、loopdelay1_kepopcxloopnext1_kepopcxcalldelayloopd1_kemoval,00movdx,protlyoutdx,almovah,01int16hjzagn1_koumovah,0int16hcmpal,52hjet11agn1_kou:movcx,0600h;agn1为显示黄色d1_kou:movsi,offsetmin1movah,01pushcxmovcx,0008hnext1_kou:moval,simovbx,offsetkouxlatmovdx,prothoutdx,almoval,ahmovdx,protlyoutdx,alshlah,

11、01incsipushcxmovcx,0ffffhdelay1_kou:loopdelay1_koupopcxloopnext1_koupopcxcalldelayloopd1_koumoval,00movdx,protlyoutdx,almovah,01int16hjzagn1_ke1movah,0int16hcmpal,52ht11:jet22;8253,daojiushunxuzhixing,fouzejiudaojingagn1_ke1:movcx,0600h;agn1为显示黄色d1_ke1:movsi,offsetmin1movah,01pushcxmovcx,0008hnext1_

12、ke1:moval,simovbx,offsetkexlatmovdx,prothoutdx,almoval,ahmovdx,protlyoutdx,alshlah,01incsipushcxmovcx,0ffffhdelay1_ke1:loopdelay1_ke1popcxloopnext1_ke1popcxcalldelayloopd1_ke1moval,00movdx,protlyoutdx,almovah,01int16hjzagn1_leemovah,0int16hcmpal,52ht22:jet33;8253,daojiushunxuzhixing,fouzejiudaoniagn

13、1_lee:movcx,0600h;agn1为显示黄色d1_lee:movsi,offsetmin1movah,01pushcxmovcx,0008hnext1_lee:moval,simovbx,offsetleexlatmovdx,prothoutdx,almoval,ahmovdx,protlyoutdx,alshlah,01incsipushcxmovcx,0ffffhdelay1_lee:loopdelay1_leepopcxloopnext1_leepopcxcalldelayloopd1_leemoval,00movdx,protlyoutdx,almovah,01int16hjzbackmo