微型计算机控制技术课程设计 步进电机

1课 程 设 计课程名称 微型计算机控制技术 题目名称_步进电机角度控制(2) 学生学院_ _ 自动化_专业班级_ 学 号 学生姓名_ _指导教师_ 李传芳 _2013 年 06 月 28 日2一、软件设计流程图如下图所示:二、心得与体会这次的课程设计主要针对键盘及可编程接口芯片 8255A 的编程，在上机调试过程中由于自己的疏忽及算法的不完善导致了程序不能实现预期的功能，经过一遍又一遍的检查和思考，终于完成了这次课程设计的任务。虽然上机调试的经历是痛苦的，但是期间的细节错误给了我们应有的教训，使我们在以后的学习及工作中尽量避免，对于汇编语言的编程也有了进一步的了解加深了对步进电机的理解和使用技巧，设计中，需要对步进电机进行角度控制，即需要对步进电机的角度进行计算分析，以得到所需的步数。总之，这次课程设计锻炼了我解决问题的能力，激发了我的思考，相信通过这次课程设计对我以后对微机的继续学习及以后的工作会有很大的帮助。开始设定 8255A 工作方式，A、B 口输出，C 口PC4PC7 输入， PC0PC3输出,故控制字为 88H扫描键盘是否有键按下判断键值否是延时LED 显示 驱动电机动作延时返回调用判断键值3任务 1 连接数码管显示电路和键盘电路，实现如下表所示的按键控制，并能够左移显示：3 6 0 AB 7 2 F1.2源程序：STACK SEGMENT STACKDB 64 DUP(?)STACK ENDSDATA SEGMENTORG 0030HVAR1 DB 0FCH,0FCH,0FCH,0FCHVAR5 DB OF7H,0FBH,0FDH,0FEHVAR2 DB 0FCH,0FCH,0FCH,0FCH,0FCH,0FCH,0FCH,0FCHVAR3 DB 00H,00H,00H,00H,00H,00H,00H,00HVAR4 DB 00H,00H,00H,00H,00H,00H,00H,00HTABLE1 DB 0FCH,60H,0DAH,0F2H,66H,0B6H,0BEH,0E0H,0FEH,0F6H,0EEH,3EH,9CH,7AH,9EH,8EHDATA ENDSCODE SEGMENTASSUME CS:CODE,DS:DATASTART: MOV AX,DATAMOV DS,AXMOV AL,88H ;8255初始化MOV DX,0606HOUT DX,ALSTT: MOV AL,60HMOV DX,0604HOUT DX,ALNEXT: MOV DX,0604HIN AL, DXAND AL,60HCMP AL,60HJNZ KEYABCCALL DISPJMP STT;.键盘扫描.KEYABC:CALL TIMEMOV DX,0604HIN AL,DXAND AL,60HCMP AL,60H ;PC6 PC5 =0110 0000JNZ KEYJMP STTKEY: MOV AL,0FEH ;扫描PC0口 PC0=0MOV DX,0604HOUT DX,ALMOV DX,0604HIN AL,DXTEST AL,20H ;检测PC5JNZ KEY_F CALL KEYA JMP STTKKEY_F: TEST AL,040H ;检测PC6口 JNZ KEY_0 CALL KEYF JMP STTK KEY_0:MOV AL,0FDH ;扫描PC1口, PC1=0MOV DX,0604HOUT DX,ALMOV DX,0604HIN AL,DXTEST AL,20H ;检测PC5JNZ KEY_2 CALL KEY0 JMP STTKKEY_2:TEST AL,040H ;检测PC6口JNZ KEY_6 CALL KEYF ；否则是按键2JMP STTK KEY_6:MOV AL,0FBH ;PC2=0MOV DX,0604H4OUT DX,ALMOV DX,0604HIN AL,DXTEST AL,20H ;检测PC5JNZ KEY_7 CALL KEY6JMP STTKKEY_7:TEST AL,040H ;检测PC6口JNZ KEY_3CALL KEY7JMP STTK KEY_3:MOV AL,0F7H PC3=0MOV DX,0604HOUT DX,ALMOV DX,0604HIN AL,DXTEST AL,20H ;检测PC5JNZ KEY_B CALL KEY3JMP STTKKEY_B:TEST AL,040H ;检测PC6口JNZ KEY_111CALL KEYBKEY_111:JMP STTK;数字XIANSHIKEYA: CMP BH,00HJZ KEYA_1KEYA_1: CALL LP1MOV AL,0EEHMOV SI,ALMOV AL,0AHMOV DI,ALCALL DISPRETKEYF: CMP BH,00HJZ KEYE_1KEYF_1:CALL LP1MOV AL,8EHMOV SI,ALMOV AL,0FHMOV DI,ALCALL DISPRETKEY0:CMP BH,00HJZ KEY1_1KEY0_1:CALL LP1MOV AL,0FCHMOV SI,ALMOV AL,00HMOV DI,ALCALL DISPRETKEY2:CMP BH,00HJZ KEYF_1KEY2_1:CALL LP1MOV AL,0DHMOV SI,ALMOV AL,02HMOV DI,ALCALL DISPRETKEY6:CMP BH,00HJZ KEY7_1KEY6_1:CALL LP1MOV AL,0BEHMOV SI,ALMOV AL,06HMOV DI,ALCALL DISPRETKEY7:CMP BH,00HJZ KEYA_1KEY7_1:CALL LP1MOV AL,0E0HMOV SI,ALMOV AL,07HMOV DI,ALCALL DISPRET5KEY3:CMP BH,00HJZ KEY8_1KEY3_1:CALL LP1MOV AL,0F2HMOV SI,ALMOV AL,03HMOV DI,ALCALL DISPRETKEYB:CMP BH,00HJZ KEYB_1KEYB_1:CALL LP1MOV AL,3EHMOV SI,ALMOV AL,0BHMOV DI,ALCALL DISPRETLP1: MOV SI,OFFSET VAR1PUSH AXMOV AL,SI+2MOV SI+3,ALMOV AL,SI+1MOV SI+2,ALMOV AL,SIMOV SI+1,ALPOP AXMOV SI,ALRET;显示.DISP:PUSH DXPUSH CXMOV SI,OFFSET VAR1MOV DX,0604HMOV AL,11111110BOUT DX,ALMOV DX,0602HMOV AL,SI+3OUT DX,ALDEC SICALL TIMEMOV DX,0604HMOV AL,11111101BOUT DX,ALMOV DX,0602HMOV AL,SI+3OUT DX,ALDEC SICALL TIMEMOV DX,0604HMOV AL,11111011BOUT DX,ALMOV DX,0602HMOV AL,SI+3OUT DX,ALDEC SICALL TIMEMOV DX,0604HMOV AL,11110111BOUT DX,ALMOV DX,0602HMOV AL,SI+3OUT DX,ALDEC SICALL TIMEPOP AXPOP DXRET ;.延时TIME: PUSH AXPUSH CXMOV CX,0006HTIME1: MOV AX,0100HTIME2: DEC AXJNZ TIME2LOOP TIME1POP CXPOP AX6RET;放键测试STTK: CALL DISPMOV AL,00HMOV DX,0604HOUT DX,ALMOV DX,0604HIN AL,DXAND AL,60HCMP AL,60HJNZ STTKJMP STTCODE ENDSEND START任务 2 实现：定义键盘按键：5 个为数字键：0、1、3、5、9 ；3 个功能键：设置SET、清零 CLR、开始 START；按键分布如下表所示：0 3 6 5SET 4 START CLR2.2 源程序：STACK SEGMENT STACKDB 100 DUP(?)STACK ENDSDATA SEGMENTVAR1 DB OF7H,0FBH,0FDH,0FEHVAR2 DB 0FCH,0FCH,0FCH,0FCHVAR5 DB 00H,00H,00H,00H,00H,00HTABL DB 0FCH,60H,0DH,0F2H,66H,0B6H,0BEH,0E0H,0FEH,0F6H,0EEH,3EH,9CH,7AH,9EH,8EHTAB_C DW 00HORG 0100HVAR3 DB 64 DUP(?)ORG 0200HVAR4 DW 64 DUP(?)COUNT DB 00HTABLE DB 08H,18H,10H,30H,20H,60H,40H,48HD_COUNT DB 00HD_TIMES DB 00HDATA ENDSCODE SEGMENTASSUME CS:CODE,DS:DATASTART: MOV AX,DATAMOV DS,AXPUSH DXMOV AL,88H ;8255初始化MOV DX,0606HOUT DX,ALMOV BX,0000HMOV COUNT,00HMOV D_COUNT,00HMOV D_TIMES,00HSTT: MOV AL,00HMOV DX,0604HOUT DX,ALNEXT: MOV DX,0604HIN AL, DXAND AL,60HCMP AL,60HJNZ KEYABCCALL DISPJMP STTPOP DX7;.键盘扫描.KEYABC:PUSH DXCALL TIMEMOV DX,0604HIN AL,DXAND AL,60HCMP AL,60H ;PC6 PC5 =0110 0000JNZ KEY_5JMP STTPOP DXKEY_5: MOV AL,0FEH ;扫描PC0口MOV DX,0604HOUT DX,ALMOV DX,0604HIN AL,DXTEST AL,20H ;检测PC5JNZ KEY_CLR CALL KEY5 ;否则 是按键5JMP STTKKEY_CLR: TEST AL,40H ;检测PC6口JNZ KEY_6CALL KEYCLRJMP STTK KEY_6:MOV AL,0FDHMOV DX,0604HOUT DX,ALMOV DX,0604HIN AL,DXTEST AL,20H ;检测PC5JNZ KEY_START CALL KEY6JMP STTKKEY_START:TEST AL,40H ;检测PC6口JNZ KEY_3CALL KEYSTARTJMP STTK KEY_3:MOV AL,0FBHMOV DX,0604HOUT DX,ALMOV DX,0604HIN AL,DXTEST AL,20H ;检测PC5JNZ KEY_4 CALL KEY3JMP STTKKEY_4:TEST AL,40H ;检测PC6口JNZ KEY_0CALL KEY4JMP STTK KEY_0:MOV AL,0F7HMOV DX,0604HOUT DX,ALMOV DX,0604HIN AL,DXTEST AL,20H ;检测PC5JNZ KEY_SET CALL KEY0JMP STTKKEY_SET:TEST AL,40H ;检测PC6口JNZ KEY_111CALL KEYSETKEY_111:JMP STTK;.KEY0:CALL LP1MOV AL,00HMOV DI,ALMOV AL,0FCHMOV SI,ALCALL DISPRETKEY3: CALL LP1MOV AL,03HMOV DI,ALMOV AL,0F2HMOV SI,ALCALL DISP8RETKEY4: CALL LP1MOV AL,04HMOV DI,ALMOV AL,66HMOV SI,ALCALL DISPRETKEY5: CALL LP1MOV AL,05HMOV DI,ALMOV AL,0B6HMOV SI,ALCALL DISPRETKEY6: CALL LP1MOV AL,06HMOV DI,ALMOV AL,0BEHMOV SI,ALCALL DISPRET;.KEYSTART: CMP COUNT,00HJZ STA1MOV AL,COUNTCBWPUSH AXMOV SI,OFFSET VAR4MOV DI,OFFSET TABLEMOV DL,00HSTA4: MOV BX,SIMOV AX,SI+2MOV DH,0FHDIV DHMOV DH,04HMUL DHINC SIINC SIINC SI INC SIPUSH AXSTA5: POP AXMOV CX,AXPUSH AXSTA2: PUSH DXMOV AL,DIMOV DX,0600HOUT DX,ALPOP DXINC DIINC DLCALL DISP1CALL DALLY1CMP DL,08HJNZ STA3MOV DL,00HMOV DI,OFFSET TABLESTA3: LOOP STA2CALL DISP1DEC BXJNZ STA5INC D_COUNTMOV AL,COUNTPOP AXCALL DISP1DEC COUNTJNZ STA4POP AXCALL DISP1DEC COUNTJNZ STA4POP AXMOV COUNT,ALMOV D_COUNT,00HMOV TAB_C,DIMOV CL,DLSTA1: RET;KEYSET: LEA SI,VAR2LEA DI,VAR3MOV AL,COUNT9CBWADD DI,AXADD DI,AXADD DI,AXADD DI,AXMOV CX,0004HSET1: MOV AL,SIMOV DI,ALINC DIINC SILOOP SET1LEA SI,VAR5MOV DX,0000HMOV DI,OFFSET VAR4MOV AL,COUNTCBWADD DI,AXADD DI,AXADD DI,AXADD DI,AXMOV AL,SIMOV DI,ALMOV AL,SI+1MOV BL,64HMUL BLADD DX,AXMOV AL,SI+2MOV CL,0AHMUL BLADD DX,AXMOV BL,SI+3CBWADD AX,DXMOV DI+2,AXMOV CX,0004HLEA SI,VAR2LEA DI,VAR5SET2: MOV SI,0FCHMOV DI,00HINC SIINC DILOOP SET2CALL DISPINC COUNTRET;.KEYCLR: CMP COUNT,00HJZ CLR1MOV DI,TAB_CMOV SI,OFFSET VAR4MOV DL,CLTEST DL,DLJNZ CLR6MOV DL,08HMOV DI,OFFSET TABLEMOV AL,07HCBWADD DI,AXCLR6: DEC DIDEC DLCLR4: MOV BX,SIMOV AX,SI+2MOV DH,0FHDIV DHMOV DH,04HMUL DHINC SIINC SIINC SIINC SIPUSH AXCLR5: POP AXMOV CX,AXPUSH AXCLR2: PUSH DXMOV AL,DIMOV DX,0600HOUT DX,ALPOP DXDEC DIDEC DLCALL DALLYTEST DL,DLJNZ CLR3MOV DL,08HMOV DI,OFFSET TABLEMOV AL,07H10CBWADD DI,AXCLR3: LOOP CLR2DEC BXJNZ CLR5MOV AL,COUNTPOP AXDEC COUNTJNZ CLR4MOV COUNT,00HCLR1: MOV CX,0004HLEA SI,VAR3LEA DI,VAR4CLR7: MOV SI,0FCHMOV DI,00HINC SIINC DILOOP CLR7CALL CLRRCALL DISPRET;DISP1: PUSH AXPUSH BXPUSH CXPUSH DXPUSH SIPUSH DIMOV D_TIMES,BLMOV AL,D_COUNTCBWMOV BX,OFFSET TABLMOV SI,OFFSET VAR1MOV DI,OFFSET VAR3ADD DI,AXADD DI,AXADD DI,AXADD DI,AXMOV AL,SIMOV DX,0604HOUT DX,ALMOV AL,D_TIMESXLATMOV DX,0602HOUT DX,ALCALL TIMEINC SIINC DIMOV CX,0003HDIR1: MOV AL,SIMOV DX,0604HOUT DX,ALMOV AL,DIMOV DX,0602HOUT DX,AL