广东工业大学单片机课程设计(何教授).doc

课 程 设 计 课程名称 单片机原理 题目名称 单片机原理课程设计 学生学院_自动化学院_专业班级_ _学 号 学生姓名_ _ _指导教师 何X敏、李X芳 2010 年 09 月 10 日（1）把两条输入线同一端口的一根输入线接到k0接口。当k0=1,显示78FA;当k0=0,显示12BE:程序如下：ORG 0000HHJMP MAINORG 1000HDB 0EEH,8EH,0FEH,0E0HDB 9EH,3EH,0DAH,60HMAIN:MOV 52H,#00HMOV 53H,#00HMOV 51H,#00HMOV 50H,#00HMOV R5,#53HKEYSUB:MOV A,#03HMOV DPTR,#7F00HMOVX DPTR,ABEGIN:MOV DPTR,#07F03HMOV A,DPTRMOV R3,#0FEHJB ACC.1,DISPLAY1JMP DISPLAY2DISPLAY1:MOV R2,#00HJMP A1DISPLAY2:MOV R2,#04HA1:MOV A,R3MOV DPTR,#7F01HMOVX DPTR,AMOV DPTR,#1000HMOV A,R2MOVC A,A+DPTRMOV DPTR,#7F02HMOVX DPTR,ACALL DLIMSINC R2MOV A,R3RL AMOV R3,AJNB ACC.4,BEGINJMP A1DLIMS:MOV R7,#05HDL0:MOV R6,#0FFHDL1:DJNZ R6,DL1DJNZ R7,DL0RETEND54790EBA（2）编程实现键盘并能左移显示：程序如下：ORG 0000HHJMP MAINORG 1000HMAIN:MOV 52H,#00HMOV 53H,#00HMOV 51H,#00HMOV 50H,#00HMOV R5,#53HKEYSUB:MOV A,#03HMOV DPTR,#7F00HMOVX DPTR,ABEGIN:ACALL DISACALL CLEARACALL CCSCANJNZ INK1AJMP BEGININK1:ACALL DISACALL DLIMSACALL DLIMSACALL CLEARACALL CCSCANJNZ INK2AJMP BEGININK2:MOV R2,#0FEHMOV R4,#00HCOLUM:MOV DPTR,#7F01HMOV A,R2MOVX DPTR,AINC DPTRINC DPTRMOVX A,DPTRJB ACC.3,LONEMOV A,#00HAJMP KCODELONE:JB.ACC.2,NEXTMOV A,#04HKCODE:ADD A,R4ACALL PUTBUFPUSH ACCKON:ACALL DISACALL CLEARACALL CCSCANJNZ KONPOP ACCNEXT:INC R4MOV A,R2JNB ACC.4,KEERRL AMOV R2,AAJMP COLUMKERR:AJMP BEGINCCSCAN:MOV DPTR,#7F01HMOV A,#00HMOV DPTR,AINC DPTRINC DPTRMOVX A ,DPTRCPL AANL A,#0CHRETCLEAR:MOV DPTR,#7F02HMOV A,#00HMOVX DPTR,ARETDIS:PUSH ACCPUSH 00HPUSH 03HMOV R0,#05HMOV R3,#0F7HMOV A,R3AGAIN:MOV DPTR,#7F01HMOVX DPTR,AMOV A,R0MOV DPTR,#DDEGMOVC A,A+DPTRMOV DPTR,#7F02HMOVX DPTR,AACALL DLIMSINC R0MOV A,R3JNB ACC.0,OUTRR AMOV R3,AAJMP AGAINOUT:POP 03HPOP 00HPOP ACCRETDDEG:DB 0EE,3EH,9EH,7AHDB 0E6H,0E0H,66H,0B6HDLIMS:MOV R7,#01HDL0:MOV R6,#0FFHDL1:DJNZ R6,DL1DJNZ R7,DL0RETPUTBUF:PUSH 00HMOV R7,A MOV A,51HMOV 50H,AMOV A,52HMOV 51H,AMOV A,53HMOV 52H,AMOV A,R7MOV R3,APOP 00HRETEND（3）程序实现单片机售票机，以下要求：a)当k0=1时，键入地址、价钱、SET，设置某个地址的票价，该机至少可连续设置三个不同地址的价钱：上海864元、北京756元、广州819元。b)当k0=0时，键入一个地址，购买的张数，按SET 得到总价，再键入另一个地址、购买的张数，按SET即得总价，可计得至少三个地址的合总价。程序如下：#include#include#define uchar unsigned char#define pcon XBYTE0X7F00#define pa XBYTE0X7F01#define pb XBYTE0X7F02#define pc XBYTE0X7F03#define led0 DBYTE0x50#define led1 DBYTE0x51#define led2 DBYTE0x52#define led3 DBYTE0x53#define keynum DBYTE0x54uchar bdata da;sbit pc2=da2;sbit pc3=da3;sbit k0=da1;sbit p26=P26;uchar code table=0XFC,0X60,0XBA,0XF2,0X66,0XB6,0XBE,0XE0,0XFE,0XE6;uchar code ctrl4=0XFE,0XFD,0XFB,0XF7;void Init()p26=1;pa=0x00;pcon=0x03;Void Delay(int sec)int i,j;for(i=0;isec;i+)for(j=0;j=3&keynum=3&sadd=3&keynum=3&sadd=5)/7countsadd-3=numbuff0*1000+numbuff1*100+numbuff2*10+numbuff3;totalprice+=countsadd-3*pricesadd-3;numbuff0=totalprice/1000;temp=totalprice-numbuff0*1000;numbuff1=temp/100;temp=temp-numbuff1*100;numbuff2=temp/10;temp=temp-numbuff2*10;numbuff3=temp;sadd=0;status=0;/7br