安工大——《微机原理与接口技术》实验报告.doc

微机原理与接口技术实验报告安徽工业大学计算机学院姓 名专 业班 级学 号指导教师分 数 实验一 8255A应用数码管动态显示一、实验目的 1、掌握8255A的工作方式、编程原理和微机接口方法。2、了解LED数码管动态显示的工作原理及编程方法。二、实验内容 编制程序，使数码管显示“DICE88”字样。三、实验步骤 联机模式： （1）在PC机和实验系统联机状态下，运行实验系统dj8086k.exe(双击桌面OTA图标或通过开始-程序-dj8086k-DJ8086k微机原理与接口技术)，新建文件并在编辑窗口输入汇编源程序，再单击工具栏中编译装载，即可完成源文件自动编译、装载目标代码功能，再单击“调试”中“连续运行”或工具图标运行，即开始运行程序。 （2）数码管显示“DICE88”字样。脱机模式： （1）在P.态下，通过单板机小键盘，从2DF0地址开始输入机器码（参见附录三），完成后返回监控，输入起始地址2DF0，再按EX键执行。（2）数码管显示“DICE88”字样。四、实验程序清单16CODE SEGMENT ; display DICE88ASSUME CS:CODEORG 2DF0HSTART:JMP START0PA EQU 0FF20H ;字位口PB EQU 0FF21H ;字形口PC EQU 0FF22H ;键入口BUFDB ?,?,?,?,?,?data1: db 0c0h,0f9h,0a4h,0b0h,99h,92h,82h,0f8h,80h,90h,88h,83h,0c6h,0a1hdb 86h,8eh,0ffh,0ch,89h,0deh,0c7h,8ch,0f3h,0bfh,8FH,0F0HSTART0:CALL BUF1CON1:CALL DISPJMP CON1DISP:MOV AL,0FFH ;00HMOV DX,PAOUT DX,ALMOV CL,0DFH ;显示子程序 ,5msMOV BX,OFFSET BUFDIS1: MOV AL,BX MOV AH,00HPUSH BXMOV BX,OFFSET DATA1 ADD BX,AX MOV AL,BXPOP BXMOV DX,PBOUT DX,ALMOV AL,CLMOV DX,PAOUT DX,ALPUSH CXDIS2:MOV CX,00A0H LOOP $ POP CXCMP CL,0FEH ;01HJZ LX1 MOV AL,0FFH ;00HMOV DX,PAOUT DX,ALINC BXROR CL,1 ;SHR CL,1JMP DIS1LX1: MOV AL,0FFHMOV DX,PBOUT DX,ALRETBUF1: MOV BUF,0DH;实验修改 mov buf,0ah MOV BUF+1,01H MOV BUF+2,0CH MOV BUF+3,0EH MOV BUF+4,08H;实验修改mov buf+4,00h MOV BUF+5,08H;实验修改mov，buf+5,09h RETCODE ENDSEND START实验二 8259单级中断控制器实验一、实验目的 1.掌握8259中断控制器的接口方法。 2.掌握8259中断控制器的应用编程。二、实验内容 利用8259实现对外部中断的响应和处理，要求程序对每次中断进行计数，并将计数结果送数码显示。三、实验接线图 四、实验步骤 1、按图62连好实验线路图。8259的INT连8088的INTR；8259的INTA连8088的INTA；“ ”插孔和8259的3号中断IR3插孔相连，“ ”端初始为低电平；8259的CS端接FF80H孔2、输入并运行实验程序，系统显示82591。 3、按动AN开关按钮， 按满5次显示good。 五、实验程序清单 CODE SEGMENT ;ASSUME CS:CODEINTPORT1 EQU 0FF80HINTPORT2 EQU 0FF81HINTQ3 EQU INTREEUP3INTQ7 EQU INTREEUP7PA EQU 0FF20H ;字位口PB EQU 0FF21H ;字形口PC EQU 0FF22H ;键入口ORG 12D0HSTART: JMP START0BUF DB ?,?,?,?,?,?intcnt db ?data1: db 0c0h,0f9h,0a4h,0b0h,99h,92h,82h,0f8h,80h,90h,88h,83h,0c6h,0a1hdb 86h,8eh,0ffh,0ch,89h,0deh,0c7h,8ch,0f3h,0bfh,8FHSTART0:CLDCALL BUF1CALL WRINTVER ;WRITE INTRRUPTMOV AL,13HMOV DX,INTPORT1OUT DX,ALMOV AL,08HMOV DX,INTPORT2OUT DX,ALMOV AL,09HOUT DX,ALMOV AL,0F7HOUT DX,ALMOV intcnt,01H;TIME=1STIWATING: CALL DISP ;DISP 8259-1JMP WATINGWRINTVER:MOV AX,0H MOV ES,AX MOV DI,002CH LEA AX,INTQ3 STOSW MOV AX,0000h STOSW MOV DI,003CH LEA AX,INTQ7STOSW MOV AX,0000h STOSW RETINTREEUP3:CLI push ax push bx push cx push dx MOV AL,INTCNT CALL CONVERS MOV BX,OFFSET BUF ;077BH MOV AL,10H MOV CX,05HINTRE0: MOV BX,AL INC BX LOOP INTRE0 MOV AL,20H MOV DX,INTPORT1 OUT DX,AL ADD INTCNT,01H CMP INTCNT,06H JNA INTRE2 CALL BUF2 ;DISP:goodINTRE1: CALL DISP JMP INTRE1CONVERS: AND AL,0FH MOV BX,offset buf ;077AH MOV BX+5,AL RETINTRE2: MOV AL,20H MOV DX,INTPORT1 OUT DX,AL pop dx pop cx pop bx pop ax STI IRETINTREEUP7:CLI MOV AL,20H MOV DX,INTPORT1 OUT DX,AL call buf3 ;disp:errINTRE3: CALL DISP JMP INTRE3DISP: MOV AL,0FFH ;00HMOV DX,PAOUT DX,ALMOV CL,0DFH ;20H ;显示子程序 ,5msMOV BX,OFFSET BUFDIS1: MOV AL,BX MOV AH,00H PUSH BX MOV BX,OFFSET DATA1 ADD BX,AX MOV AL,BXPOP BXMOV DX,PBOUT DX,ALMOV AL,CLMOV DX,PAOUT DX,ALPUSH CXDIS2:MOV CX,00A0H LOOP $ POP CXCMP CL,0FEH ;01HJZ LX1INC BXROR CL,1 ;SHR CL,1JMP DIS1LX1: MOV AL,0FFHMOV DX,PBOUT DX,ALRETBUF1: MOV BUF,08H MOV BUF+1,02H MOV BUF+2,05H MOV BUF+3,09H MOV BUF+4,17H MOV BUF+5,01H RETBUF2: MOV BUF,09H MOV BUF+1,00H MOV BUF+2,00H MOV BUF+3,0dH MOV BUF+4,10H MOV BUF+5,10H RETBUF3: MOV BUF,0eH MOV BUF+1,18H MOV BUF+2,18H MOV BUF+3,10H MOV BUF+4,10H MOV BUF+5,10H RETCODE ENDSEND START实验三 8253、8255、8259综合实验18253计数器实验要求：计数器1方式0计数，计满3个数产生中断，中断5次后结束。实验线路见图6-6：图6-6 8253计数器实验电路图实验程序：INTPORT1 EQU 0FF80HINTPORT2 EQU 0FF81HINTQ3 EQU INTREEUP3TCONTR0 EQU 0043HTCON1 EQU 0041HPA EQU 0FF20H ;字位口PB EQU 0FF21H ;字形口PC EQU 0FF22H ;键入口code segment assume cs:code ORG 12D0HSTART: JMP START0BUF DB ?,?,?,?,?,?intcnt db ?data1 db0c0h,0f9h,0a4h,0b0h,99h,92h,82h,0f8h,80h,90h,88h,83h,0c6h db0a1h,86h,8eh,0ffh,0ch,89h,0deh,0c7h,8ch,0f3h,0bfh,8FHSTART0:CLD CALL BUF1CALL WRINTVER ;WRITE INTRRUPTMOV AL,13HMOV DX,INTPORT1OUT DX,ALMOV AL,08HMOV DX,INTPORT2OUT DX,ALMOV AL,09HOUT DX,ALMOV AL,0F7HOUT DX,ALMOV intcnt,01H;TIME=1MOV DX,TCONTR0MOV AL,51HOUT DX,ALMOV DX,TCON1MOV AL,03OUT DX,ALMOV DX,0FF23HMOV AL,80OUT DX,ALSTIWATING: CALL DISP ;DISP 825359JMP WATINGWRINTVER:MOV AX,0H MOV ES,AX MOV DI,002CH LEA AX,INTQ3 STOSW MOV AX,0000h STOSW RETINTREEUP3: push ax push bx push cx push dx MOV DX,TCON1MOV AL,03OUT DX,AL MOV AL,INTCNT CALL CONVERS MOV BX,OFFSET BUF MOV AL,10H MOV CX,05HINTRE0: MOV BX,AL INC BX LOOP INTRE0 ADD INTCNT,01H CMP INTCNT,06H JNA INTRE2 CALL BUF2 ;DISP:goodINTRE1: CALL DISP JMP INTRE1CONVERS: AND AL,0FH MOV BX,offset buf MOV BX+5,AL RETINTRE2: MOV AL,20H MOV DX,INTPORT1 OUT DX,AL pop dx pop cx pop bx pop ax IRETDISP: MOV AL,0FFH ;00HMOV DX,PAOUT DX,ALMOV CL,0DFH ;20H MOV BX,OFFSET BUFDIS1: MOV DX,PC OUT DX,AL MOV AL,BX MOV AH,00HPUSH BXMOV BX,OFFSET DATA1 ADD BX,AX MOV AL,BXPOP BXMOV DX,PBOUT DX,ALMOV AL,CLMOV DX,PAOUT DX,ALPUSH CXDIS2:MOV CX,00A0H LOOP $ POP CXCMP CL,0FEH ;01HJZ LX1INC BXROR CL,1 ;SHR CL,1JMP DIS1LX1: MOV AL,0FFHMOV DX,PBOUT DX,ALRETBUF1: MOV BUF,08H MOV BUF+1,02H MOV BUF+2,05H MOV BUF+3,03H MOV BUF+4,05H MOV BUF+5,09H RETBUF2: MOV BUF,09H MOV BUF+1,00H MOV BUF+2,00H MOV BUF+3,0dH MOV BUF+4,10H MOV BUF+5,10H RETCODE ENDSEND START要求做的改变：换成计数器0，计满11次后产生中断2、8253定时器实验要求：用8253定时器1通道定时，每隔1秒使PA口的指示灯的状态右移一位。主程序反复游走显示8253A。 8253定时器实验线路见图6-7：实验程序：CODE SEGMENT ;ASSUME CS:CODEINTPORT1 EQU0FF80HINTPORT2 EQU0FF81HINTQ3 EQUINTREEUP3TCONTR0 EQU 0043HTCON1 EQU0041HIOCONPT EQU0FF2BHIOBPT EQU0FF29HIOAPT EQU 0FF28HPA EQU 0FF20H ;字位口PB EQU 0FF21H ;字形口PC EQU 0FF22H ;键入口ORG 12D0HSTART: JMP START0BUF DB ?,?,?,?,?,?intcnt db ?WEIKONG DB ?data1 db 0c0h,0f9h,0a4h,0b0h,99h,92h,82h,0f8h,80h,90h,88h,83h,0c6h db 0a1h,86h,8eh,0ffh,0ch,89h,0deh,0c7h,8ch,0f3h,0bfh,8FHSTART0:CLD CALL BUF1CALL WRINTVER ;WRITE INTRRUPTMOV AL,13HMOV DX,INTPORT1OUT DX,ALMOV AL,08HMOV DX,INTPORT2OUT DX,ALMOV AL,09HOUT DX,ALMOV AL,0F7HOUT DX,ALMOV intcnt,50 ;软件计数50（1秒=20ms*50）;实验修改MOV intcnt,100MOV DX,TCONTR0MOV AL,74HOUT DX,ALMOV DX,TCON1 ;计数器1定时20msMOV AX,40000OUT DX,AL MOV AL,AH OUT DX,ALMOV DX,0FF2BHMOV AL,82HOUT DX,ALMOV WEIKONG, 0FEH ;初始PA0对应位亮 MOV AL, WEIKONG MOV DX, 0FF29H OUT DX,ALSTIWATING: CALL DISP ;DISP 8253-AJMP WATINGWRINTVER:MOV AX,0H MOV ES,AX MOV DI,002CH LEA AX,INTQ3 STOSW MOV AX,0000h STOSW RETINTREEUP3: DEC INTCNT JNZ INTRE2 MOV INTCNT, 50;实验修改 MOV INTCNT，100ROL WEIKONG, 1;实验修改 ROR WEIKONG, 1 MOV DX, IOAPT MOV AL, WEIKONGOUT DX,ALINTRE2: MOV AL,20H MOV DX,INTPORT1 OUT DX,AL IRETDISP: MOV AL,0FFH ;00HMOV DX,PAOUT DX,ALMOV CL,0DFH ;20H MOV BX,OFFSET BUFDIS1: MOV DX,PC OUT DX,AL MOV AL,BX MOV AH,00HPUSH BXMOV BX,OFFSET DATA1 ADD BX,AX MOV AL,BXPOP BXMOV DX,PBOUT DX,ALMOV AL,CLMOV DX,PAOUT DX,ALPUSH CXDIS2:MOV CX,0000H LOOP $ POP CXCMP CL,0FEH ;01HJZ LX1INC BXROR CL,1 JMP DIS1LX1: MOV AL,0FFHMOV DX,PBOUT DX,ALRETBUF1: MOV BUF,08H MOV BUF+1,02H MOV BUF+2,05H MOV BUF+3,03H MOV BUF+4,17H MOV BUF+5,0AH RETCODE ENDS END START要求做的改变：改成计数器0,2秒，灯的移动反过来实验四 8250串口实验一、实验目的 （1）系统扩展以8250为核心的可编程串行异步通讯接口芯片。（2）对扩展的串行通讯接口实现自发自收。二、实验内容 将寄存器AH的内容从10H开始通过8250发送、接收，每次收发后AH的内容自动增1直到FFH为止，同时将每次接收到的数据，依次写到内存4000H40EFH单元中，实现自发自收。三、实验接线图 四、实验步骤 用扁平线连JX0（BUS）到JX3（D0D7），连FF80H孔到CS7，连TXD到RXD（8250实验区）。运行程序8250ASM或在实验系统处于P态下，按SCAL键，输入29A0，按EXEC即可。当系统显示“8250good”表示自发自收结束，按RST键，系统返回P态，用内存读写命令检查4000H40EFH内容是否为10HFFH，验证其正确性。五、实验程序清单 CODE SEGMENT ;H8250.ASMASSUME CS:CODE ;H8250.ASMDATA EQU 0ff80H;BTS-LSB 接收发送缓冲器MSBEQU0ff81H 中断允许寄存器和分频次数高LINEEQU 0ff83H 传输线控制寄存器LSTATEQU0ff85H 传输线状态寄存器PA EQU 0FF20H ;字位口PB EQU 0FF21H ;字形口PC EQU 0FF22H ;键入口ORG 29A0HSTART: JMP START0BUF DB ?,?,?,?,?,?data1: db 0c0h,0f9h,0a4h,0b0h,99h,92h,82h,0f8h,80h,90h,88h,83h,0c6h,0a1h db 86h,8eh,0ffh,0ch,89h,0deh,0c7h,8ch,0f3h,0bfh,8FHSTART0: MOV AL,80H;DLAB=1MOV DX,LINEOUT DX,ALMOV AL,18H;BTS=4800MOV DX,DATA ;ff80HOUT DX,ALMOV DX,MSBMOV AL,00OUT DX,ALMOV AL,03H;8- BIT ,1-STOPMOV DX,LINEOUT DX,ALMOV AL,00;NO-INTMOV DX,MSB （中断允许寄存器）;8001HOUT DX,ALMOV AH,10H;实验修改MOV AL,40HMOV BX,4000H;实验修改MOV BX,7000HMAIN:CALL TXDCALL RCVMOV BX,ALINC BXINC AHCMP AH,00HJNZ MAINCALL BUF1MOV CX,00FFHS3: PUSH CXCALL DISPPOP CXLOOP S3CALL BUF3S1: CALL DISP JMP S1TXD: MOV DX,LSTATWAIT1:IN AL,DXTEST AL,20HJZ WAIT1MOV AL,AHMOV DX,DATAOUT DX,ALRETRCV: MOV DX,LSTATWAIT2: IN AL,DXTEST AL,01HJZ WAIT2TEST AL,0EHJNZ ERRMOV DX,DATAIN AL,DXRETERR: CALL BUF2S2: CALL DISP JMP S2DISP: MOV AL,0FFH ;00H MOV DX,PA OUT DX,ALMOV CL,0DFH ;20H ;显示子程序 ,5ms MOV BX,OFFSET BUFDIS1: MOV AL,BX MOV AH,00H PUSH BX MOV BX,OFFSET DATA1 ADD BX,AX MOV AL,BXPOP BXMOV DX,PBOUT DX,ALMOV AL,CLMOV DX,PAOUT DX,AL PUSH CXDIS2: MOV CX,00A0HDELAY: LOOP DELAY POP CXCMP CL,0FEH ;01H JZ LX1 INC BXROR CL,1 ;SHR CL,1 JMP DIS1LX1: MOV AL,0FFH MOV DX,PB OUT DX,AL RETBUF1: MOV BUF,08H MOV BUF+1,02H MOV BUF+2,05H MOV BUF+3,00H MOV BUF+4,17H MOV BUF+5,17H RETBUF2: MOV BUF,08H MOV BUF+1,02H MOV BUF+2,05H MOV BUF+3,00H MOV BUF+4,0EH MOV BUF+5,18H RETBUF3: MOV BUF,09H MOV BUF+1,00H MOV BUF+2,00H MOV BUF+3,0DH MOV BUF+4,10H MOV BUF+5,10H RETCODE ENDSEND START实验五 A/D转换实验一、实验目的 了解模/数转换基本原理，掌握ADC0809的使用方法； 掌握定时数据采集程序的编制方法。二、实验内容 1、A/D转换实验利用实验系统上电位器提供的可调电压作为0809模拟信号的输入，编制程序，将模拟量转换为数字量，通过数码管显示出来。（1） 实验接线图 ADC0809接线见图6-9图6-9 ADC0809接线图（2）实验步骤 将0809 CS4插孔连到译码输出FF80H插孔。 将通道0模拟量输入端IN0连电位器W1的中心插头AOUT1(05V)插孔,8MHZT。 运行实验程序，系统上显示“0809 XX”。“XX”表示输入模拟量转换后的数字量。 调节电位器Wl, 显示器上会不断显示新的转换结果。模拟量和数字量对应关系的典型值为：0V00H+2.5V80H+5VFFH 按RST键退出。（3）实验程序清单CODE SEGMENT ;ASSUME CS:CODEADPORT EQU 0FF80hPA EQU 0FF20H ;字位口PB EQU 0FF21H ;字形口PC EQU 0FF22H ;键入口 ORG 1000HSTART: JMP START0BUF DB ?,?,?,?,?,?data1: db 0c0h,0f9h,0a4h,0b0h,99h,92h,82h,0f8h,80h,90h,88h,83h,0c6h,0a1h db 86h,8eh,0ffh,0ch,89h,0deh,0c7h,8ch,0f3h,0bfh,8FHSTART0: CALL BUF1ADCON: MOV AX,00;实验修改MOV AX,01 MOV DX,ADPORT OUT DX,AL MOV CX,0500H;DELAY: LOOP DELAY MOV DX,ADPORT IN AL,DX CALL CONVERS CALL DISP JMP ADCONCONVERS: MOV AH,AL AND AL,0FH MOV BX,OFFSET BUF MOV BX+5,AL MOV AL,AH AND AL,0F0H MOV CL,04H SHR AL,CL MOV BX+4,AL RETDISP: MOV AL,0FFH MOV DX,PAOUT DX,ALMOV CL,0DFH MOV BX,OFFSET BUFDIS1: MOV AL,BX MOV AH,00HPUSH BXMOV BX,OFFSET DATA1 ADD BX,AX MOV AL,BXPOP BXMOV DX,PBOUT DX,ALMOV AL,CLMOV DX,PAOUT DX,ALPUSH CXDIS2: MOV CX,00A0H LOOP $ POP CXCMP CL,0FEH JZ LX1INC BXROR CL,1 JMP DIS1LX1: MOV AL,0FFHMOV DX,PBOUT DX,ALRETBUF1: MOV BUF,00H MOV BUF+1,08H MOV BUF+2,00H MOV BUF+3,09H MOV BUF+4,00H MOV BUF+5,00H RETCODE ENDSEND START2、数据采集实验 要求：用8253定时器1通道定时，每隔半秒使从ADC0809的0通道IN0采集一个数据，若模拟电压在0-2V范围内（0-102），则使LED显示器L7-L4亮；若模拟电压大于2V，小于3V，则使L5-L2亮；若模拟电压大于等于3V，则使LED显示器L3-L0亮。(主程序重复所采集的数据)（1）实验接线图数据采集实验系统接线图见图6-11图6-11 数据采集系统接线图（3）实验程序清单CODE SEGMENT ;ASSUME CS:CODEINTPORT1 EQU0FF80HINTPORT2 EQU0FF81HINTQ3 EQUINTREEUP3TCONTR0 EQU 0043HTCON1 EQU0041H;实验修改TCON1 EQU 0040HIOCONPT EQU0FF2BHIOBPT EQU0FF29HIOAPT EQU 0FF28HPA EQU 0FF20H ;字位口PB EQU 0FF21H ;字形口PC EQU 0FF22H ;键入口ADPORT EQU 0FE00HORG 12D0HSTART: JMP START0BUF DB ?,?,?,?,?,?intcnt db ?RES DB ?data1 db 0c0h,0f9h,0a4h,0b0h,99h,92h,82h,0f8h,80h,90h,88h,83h,0c6h db 0a1h,86h,8eh,0ffh,0ch,89h,0deh,0c7h,8ch,0f3h,0bfh,8FHSTART0: CLD CALL BUF1CALL WRINTVER MOV AL,13HMOV DX,INTPORT1OUT DX,ALMOV AL,08HMOV DX,INTPORT2OUT DX,ALMOV AL,09HOUT DX,ALMOV AL,0F7H;实验修改MOV AL,0FEHOUT DX,ALMOV intcnt,25 MOV DX,TCONTR0MOV AL,74H;实验修改MOV AL,34HOUT DX,ALMOV DX,TCON1 MOV AX,40000OUT DX,AL MOV AL,AH OUT DX,ALMOV DX,0FF2BHMOV AL,82HOUT DX,AL STIWAT