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1、综合实验二：液晶显示模拟多通道数据采集系统一：实验目的1）：掌握和理解单片机总线工作模式下各信号线的跳变及相应的时序。特别要了解ALE及RD、WR信号线在总线方式下的时序。2）：在总线方式下各相应指令的结构。3）：外围接口芯片的地址选择方式。4）：了解LCD模块的使用说明及特别是指令说明。二：实验内容采用总线方式构架一个多路数据采集系统。并将采样数据分二行在液晶显示模块上进行实时显示。随着被采样电压值的变化液晶显示器显示的值跟随变化（即连续采样）。显示数值为实际的电压值。CH4:xxHCH5：xxHCH6:xxHCH0：xxH三、.LST文件ORG0000H00
2、00LJMPMAINORG0003H0003LJMPADCHANGEORG0080HMAIN:0080MOVSP,#60H;初值设定00833120ACALLJIANC008500NOP00863108ACALLLCD0088MOVDPTR,#2300H;2300->写命令008B7480MOVA,#80H;008DF0MOVX@DPTR,A008E3120ACALLJIANC00907E80MOVR6,#80H;R6指示显示位置00927F34MOVR7,#34H;R7指示显示的数字4，5，6，0009411D9ACALLSHOWCH00967E89MOVR6
3、,#89H00980FINCR7009911D9ACALLSHOWCH009B7EC0MOVR6,#0C0H009D0FINCR7009E11D9ACALLSHOWCH00A07EC9MOVR6,#0C9H00A27F30MOVR7,#30H00A411D9ACALLSHOWCHMAIN1:00A67830MOVR0,#30H;R0存放A/D部分的临时存储调试地址00A87A03MOVR2,#03H00AAMOVDPTR,#2004HSTARTAD:00ADC2D5CLRF000AFD288SETBIT000B1D2AFSETBEA00B3D2A8SETBEX0
4、00B5F0MOVX@DPTR,A00B630D5FDLOOP:JNBF0,LOOP00B9DAF2DJNZR2,STARTAD00BB11BFACALLDASEND00BD80E7SJMPMAIN1DASEND:00BFMOVDPTR,#2100H;先选通da第一级缓冲00C2E530MOVA,30H00C4F0MOVX@DPTR,A00C5MOVDPTR,#2200H;选通da第二级缓冲00C8F0MOVX@DPTR,A00C9MOVDPTR,#2000H;选通ad通道000CCC2D5START2:CLRF000CED288SETBIT000D0D2A8S
5、ETBEX000D2D2AFSETBEA00D4F0MOVX@DPTR,A00D530D5FDLOOP1:JNBF0,LOOP100D822RET;显示CHSHOWCH:00D9MOVDPTR,#2300H;2300->写命令00DCEEMOVA,R6;确定写入位置00DDF0MOVX@DPTR,A00DE3120ACALLJIANC00E0MOVDPTR,#2302H;2302->写数据00E37443MOVA,#43H;字母c的ascII00E5F0MOVX@DPTR,A00E63120ACALLJIANC00E87448MOVA,#48H;字母h的ascI
6、I00EAF0MOVX@DPTR,A00EB3120ACALLJIANC00EDEFMOVA,R7;字母R7的ascII00EEF0MOVX@DPTR,A00EF3120ACALLJIANC00F1743AMOVA,#3AH;字母:的ascII00F3F0MOVX@DPTR,A00F43120ACALLJIANC00F67406MOVA,#06H00F82EADDA,R600F9MOVDPTR,#2300H00FCF0MOVX@DPTR,A00FD3120ACALLJIANC00FFMOVDPTR,#2302H01027448MOVA,#48H0104F0MOV
7、X@DPTR,A01053120ACALLJIANC010722RET;液晶初始化子程序LCD:0108MOVDPTR,#2300H010B743FMOVA,#3FH010DF0MOVX@DPTR,A010E3120ACALLJIANC01107401MOVA,#01H0112F0MOVX@DPTR,A01133120ACALLJIANC0115740FMOVA,#0FH0117F0MOVX@DPTR,A01183120ACALLJIANC011A7406MOVA,#06H011CF0MOVX@DPTR,A011D3120ACALLJIANC011F22RET;
8、检测液晶显示器工作状态子
