微機(jī)原理與接口技術(shù)實(shí)驗(yàn)指導(dǎo)書班級(jí) 學(xué)號(hào) 099074 姓名 安徽工業(yè)大學(xué)計(jì)算機(jī)學(xué)院實(shí)驗(yàn)一 存貯器讀寫實(shí)驗(yàn)一、實(shí)驗(yàn)內(nèi)容 對(duì)指定地址區(qū)間的RAM（4000H4FFH）先進(jìn)行寫數(shù)據(jù)55AAH，然后將其內(nèi)容讀出再寫到5000H5FFH中。二、實(shí)驗(yàn)步驟 l、將實(shí)驗(yàn)系統(tǒng)與PC機(jī)連接；2、在PC機(jī)上啟功DJ-8086k軟件，實(shí)驗(yàn)系統(tǒng)進(jìn)入聯(lián)機(jī)狀態(tài)；3、在DJ-8086k軟件環(huán)境下編輯、調(diào)試程序，將程序調(diào)試、編譯通過；4、運(yùn)行程序。5、稍后按RST鍵退出，用存貯器讀方法檢查4000H43FFH中的內(nèi)容和500053FFH中的內(nèi)容應(yīng)都是55AA。三、實(shí)驗(yàn)程序清單CODE SEGMENT ;RAM.ASMASSUME CS:CODEPA EQU 0FF20H ;字位口PB EQU 0FF21H ;字形口PC EQU 0FF22H ;鍵入口ORG 1850hSTART: JMP START0BUF DB ?,?,?,?,?,?data1: db0c0h,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 AX,0H MOV DS,AX MOV BX,4000H MOV AX,55AAH MOV CX,0200HRAMW1: MOV DS:BX,AX ADD BX,0002H LOOP RAMW1 MOV AX,4000H MOV SI,AX MOV AX,5000H MOV DI,AX MOV CX,0400H CLD REP MOVSB call buf1 mov cx,0ffhcon1: push cx call disp pop cx loop con1 call buf2con2: call disp jmp con2DISP: MOV AL,0FFH ;00H MOV DX,PA OUT DX,AL MOV CL,0DFH ;20H ;顯示子程序 ,5ms MOV BX,OFFSET BUFDIS1: MOV AL,BX MOV AH,00H PUSH BX MOV BX,OFFSET DATA1 ADD BX,AX MOV AL,BX POP BX MOV DX,PB OUT DX,AL MOV AL,CL MOV DX,PA OUT DX,AL PUSH 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,06H MOV BUF+1,02H MOV BUF+2,02H MOV BUF+3,05H MOV BUF+4,06H MOV BUF+5,17H RETBUF2: MOV BUF,17H MOV BUF+1,17H MOV BUF+2,09H MOV BUF+3,00H MOV BUF+4,00H MOV BUF+5,0dH RETCODE ENDSEND START四、實(shí)驗(yàn)總結(jié) 通過該實(shí)驗(yàn)讓我們了解了如何對(duì)存儲(chǔ)器進(jìn)行讀寫，寫入存儲(chǔ)器后，如何通過機(jī)器檢查存儲(chǔ)單元內(nèi)的內(nèi)容，通過該實(shí)驗(yàn)讓我對(duì)計(jì)算機(jī)的存儲(chǔ)器有了更進(jìn)一步的認(rèn)識(shí)。實(shí)驗(yàn)二 8259單級(jí)中斷控制器實(shí)驗(yàn)一、實(shí)驗(yàn)內(nèi)容 利用8259實(shí)現(xiàn)對(duì)外部中斷的響應(yīng)和處理，要求程序?qū)γ看沃袛噙M(jìn)行計(jì)數(shù)，并將計(jì)數(shù)結(jié)果送數(shù)碼顯示。二、實(shí)驗(yàn)步驟 1、按實(shí)驗(yàn)原理圖連好實(shí)驗(yàn)線路圖。8259的INT連8088的INTR；8259的INTA連8088的INTA；“ ”插孔和8259的3號(hào)中斷IR7插孔相連，“ ”端初始為低電平；8259的CS端接FF80H孔。2、輸入并運(yùn)行實(shí)驗(yàn)程序，系統(tǒng)顯示82591。 3、按動(dòng)AN開關(guān)按鈕， 按滿5次顯示good。三、程序清單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 ;鍵入口ORG 12D0HSTART: JMP START0BUF DB ?,?,?,?,?,?intcnt db ?data1: db0c0h,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,0DFHOUT DX,ALMOV intcnt,01H;TIME=1STIWATING: CALL DISP ;DISP 8259-1JMP WATINGWRINTVER:MOV AX,0H MOV ES,AX MOV DI,0034H 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 ;顯示子程序 ,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,ALRETCODE ENDSEND START四、實(shí)驗(yàn)小結(jié) 通過8259單級(jí)中斷控制器實(shí)驗(yàn)，讓我對(duì)8259中斷控制器的接口方法和8259中斷控制器的應(yīng)用編程有了一定的了解。實(shí)驗(yàn)三 8255A并行口實(shí)驗(yàn)一、實(shí)驗(yàn)內(nèi)容 用8255做輸出口，控制十二個(gè)發(fā)光管亮滅，模擬交通燈管理。二、實(shí)驗(yàn)步驟 在系統(tǒng)顯示監(jiān)控提示符“P.”時(shí)，按SCAL鍵。按實(shí)驗(yàn)原理圖連好實(shí)驗(yàn)線路8255A：PB4-PB7對(duì)應(yīng)紅燈, PC0-PC3對(duì)應(yīng)綠燈, PC4-PC7對(duì)應(yīng)黃燈在“P.”態(tài)時(shí)，輸入11E0后，按EXEC鍵；系統(tǒng)顯示執(zhí)行符“”，同時(shí)Ll-Ll5發(fā)光二極管模擬交通燈顯示。三、實(shí)驗(yàn)程序清單CODE SEGMENT ;H8255-2.ASMASSUME CS:CODEIOCONPT EQU 0FF2BHIOAPT EQU 0FF28HIOBPT EQU 0FF29HIOCPT EQU 0FF2AHORG 11e0HSTART:MOV AL,82HMOV DX,IOCONPTOUT DX,ALMOV DX,IOBPTIN AL,DXMOV BYTE PTR DS:0601H,ALMOV DX,IOCONPTMOV AL,80HOUT DX,ALMOV DX,IOBPTMOV AL,DS:0601HOR AL,0F0HOUT DX,ALMOV DX,IOCPTMOV AL,0F0HOUT DX,ALCALL DELAY1IOLED0: MOV AL,10100101BMOV DX,IOCPTOUT DX,ALCALL DELAY1CALL DELAY1OR AL,0F0HOUT DX,ALMOV CX,8HIOLED1: MOV DX,IOBPTMOV AL,DS:0601HAND AL,10101111BOUT DX,ALCALL DELAY2OR AL,01010000BOUT DX,ALCALL DELAY2LOOP IOLED1MOV DX,IOCPTMOV AL,0F0HOUT DX,ALCALL DELAY2MOV AL,01011010BOUT DX,ALCALL DELAY1CALL DELAY1OR AL,0F0HOUT DX,ALMOV CX,8HIOLED2: MOV DX,IOBPTMOV AL,DS:0601HAND AL,01011111BOUT DX,ALCALL DELAY2OR AL,10100000BOUT DX,ALCALL DELAY2LOOP IOLED2MOV DX,IOCPTMOV AL,0F0HOUT DX,ALCALL DELAY2JMP IOLED0DELAY1: PUSH AXPUSH CXMOV CX,0030HDELY2: CALL DELAY2LOOP DELY2POP CXPOP AXRETDELAY2: PUSH CXMOV CX,8000HDELA1: LOOP DELA1POP CXRETCODE ENDSEND START四、實(shí)驗(yàn)小結(jié) 通過該實(shí)驗(yàn)，讓我掌握了如何通過8255控制發(fā)光二級(jí)管，以及發(fā)光二級(jí)管的工作原理。實(shí)驗(yàn)四 8250串口實(shí)驗(yàn)一、實(shí)驗(yàn)內(nèi)容 將寄存器AH的內(nèi)容從10H開始通過8250發(fā)送、接收，每次收發(fā)后AH的內(nèi)容自動(dòng)增1直到FFH為止，同時(shí)將每次接收到的數(shù)據(jù)，依次寫到內(nèi)存4000H40EFH單元中，實(shí)現(xiàn)自發(fā)自收。二、實(shí)驗(yàn)步驟 1.用扁平線連JX0（BUS）到JX3（D0D7），連FF80H孔到CS7，連TXD到RXD（8250實(shí)驗(yàn)區(qū)）。2.編輯、調(diào)試、運(yùn)行程序。3.當(dāng)系統(tǒng)顯示“8250good”表示自發(fā)自收結(jié)束，按RST鍵，系統(tǒng)返回P態(tài)，用內(nèi)存讀寫命令檢查4000H40EFH內(nèi)容是否為10HFFH，驗(yàn)證其正確性。三、實(shí)驗(yàn)程序清單 CODE SEGMENT ;H8250.ASMASSUME CS:CODE ;H8250.ASMDATAEQU0ff80H;BTS-LSBMSBEQU0ff81HLINEEQU 0ff83HLSTATEQU0ff85HPA EQU 0FF20H ;字位口PB EQU 0FF21H ;字形口PC EQU 0FF22H ;鍵入口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,0cH;BTS=9600MOV DX,DATA ;ff80HOUT DX,ALMOV DX,MSBMOV AL,00OUT DX,AL;-MOV AL,06H7- BIT ,2-STOPMOV DX,LINEOUT DX,AL;-MOV AL,00;NO-INTMOV DX,MSB ;8001HOUT DX,ALMOV AH,10HMOV BX,4000HMAIN: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 S2;-DISP: MOV AL,0FFH ;00H MOV DX,PA OUT DX,AL MOV CL,0DFH ;20H ;顯示子程序 ,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 CX CMP CL,0FEH ;01H JZ LX1 INC BX ROR CL,1 ;SHR CL,1 JMP DIS1LX1: MOV AL,0FFH MOV DX,PB OUT DX,AL RETCODE ENDSEND START四、實(shí)驗(yàn)小結(jié) 通過該實(shí)驗(yàn)讓我對(duì)系統(tǒng)擴(kuò)展以8250為核心的可編程串行異步通訊接口芯片有了一定了了解，實(shí)現(xiàn)了對(duì)擴(kuò)展的串行通訊接口實(shí)現(xiàn)自發(fā)自收。該實(shí)驗(yàn)讓我對(duì)8250有了更深一步的認(rèn)識(shí)。實(shí)驗(yàn)五 A/D轉(zhuǎn)換實(shí)驗(yàn)一、實(shí)驗(yàn)內(nèi)容利用實(shí)驗(yàn)系統(tǒng)上電位器提供的可調(diào)電壓作為0809模擬信號(hào)的輸入，編制程序，將模擬量轉(zhuǎn)換為數(shù)字量，通過數(shù)碼管顯示出來。二、實(shí)驗(yàn)步驟 將0809 CS4插孔連到譯碼輸出FF80H插孔。 將通道0模擬量輸入端IN0連電位器W1的中心插頭AOUT1(05V)插孔,8MHZT。 運(yùn)行實(shí)驗(yàn)程序，系統(tǒng)上顯示“0809 XX”?！癤X”表示輸入模擬量轉(zhuǎn)換后的數(shù)字量。 調(diào)節(jié)電位器Wl, 顯示器上會(huì)不斷顯示新的轉(zhuǎn)換結(jié)果。模擬量和數(shù)字量對(duì)應(yīng)關(guān)系的典型值為：0V00H+2.5V80H+5VFFH 按RST鍵退出。三、實(shí)驗(yàn)程序清單CODE SEGMENT ;ASSUME CS:CODEADPORT EQU 0FF80hPA EQU 0FF20H ;字位口PB EQU 0FF21H ;字形口PC EQU 0FF22H ;鍵入口 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 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 START