接口實(shí)驗(yàn)報(bào)告8255A和8259兩個(gè)實(shí)驗(yàn)

《微機(jī)原理與接口技術(shù)》實(shí)驗(yàn)報(bào)告專業(yè)班級(jí)計(jì)算機(jī)科學(xué)與技術(shù)XX學(xué)號(hào)123456789姓名JackiyBrown指導(dǎo)教師XXXXX安徽工業(yè)大學(xué)計(jì)算機(jī)學(xué)院試驗(yàn)一8255A應(yīng)用數(shù)碼管動(dòng)態(tài)顯示試驗(yàn)?zāi)康恼莆?255A的工作方式、編程原理和微機(jī)接口方法。了解LED數(shù)碼管動(dòng)態(tài)顯示的工作原理及編程方法。實(shí)驗(yàn)內(nèi)容編制程序，使數(shù)碼管顯示”DICE88”字樣實(shí)驗(yàn)步驟在PC機(jī)和實(shí)驗(yàn)系統(tǒng)聯(lián)機(jī)狀態(tài)下，運(yùn)行實(shí)驗(yàn)系統(tǒng)dj8086k.exe(雙擊桌面OTA圖標(biāo)或通過開始-程序-dj8086k-DJ8086k微機(jī)原理與接口技術(shù))，新建文件并在編輯窗口輸入?yún)R編源程序，再單擊工具欄中編譯裝載，即可完成源文件自動(dòng)編譯、裝載目標(biāo)代碼功能，再單擊“調(diào)試”中“連續(xù)運(yùn)行”或工具圖標(biāo)運(yùn)行，即開始運(yùn)行程序。數(shù)碼管顯示“DICE88”字樣。程序清單CODE SEGMENT ;display"DICE88" ASSUME CS:CODE ORG2DF0HSTART: JMPSTART0PA EQU0FF20H;字位口PB EQU0FF21H;字形口PC EQU0FF22H;鍵入口BUF DB?,?,?,?,?,?data1: db0c0h,0f9h,0a4h,0b0h,99h,92h,82h,0f8h,80h,90h,88h,83h,0c6h,0a1h db86h,8eh,0ffh,0ch,89h,0deh,0c7h,8ch,0f3h,0bfh,8FH,0F0HSTART0: CALLBUF1;初始化緩沖區(qū)bufCON1: CALLDISP;調(diào)用子程序disp JMPCON1;重復(fù)顯示DISP: MOVAL,0FFH ;00H MOVDX,PA OUTDX,AL MOVCL,0DFH ;顯示子程序,5ms MOVBX,OFFSETBUF ;將緩沖區(qū)的首地址放入到bx寄存器中DIS1: MOVAL,[BX] MOVAH,00H;屏蔽高四位 PUSHBX ;將bx入棧 MOVBX,OFFSETDATA1 ADDBX,AX ;獲取要顯示數(shù)字的地址 MOVAL,[BX];將要顯示的數(shù)字放在al寄存器 POPBX MOVDX,PB OUTDX,AL;向端口b輸出數(shù)字 MOVAL,CL;clodfH MOVDX,PA OUTDX,AL PUSHCXDIS2: MOVCX,00A0H LOOP$;延時(shí) POPCX CMPCL,0FEH ;01H JZLX1//如果標(biāo)志位zf為1六位顯示完了，跳轉(zhuǎn)到lx1 MOVAL,0FFH ;00H MOVDX,PA OUTDX,AL INCBX ;緩沖區(qū)的地址偏移量加1 RORCL,1 ;SHRCL,1 JMPDIS1 ;六位數(shù)字沒有顯示完，跳轉(zhuǎn)到dis1繼續(xù)顯示下一個(gè)數(shù)字LX1: MOVAL,0FFH;六位數(shù)字都顯示完 MOVDX,PB OUTDX,AL RET;子程序返回BUF1: MOVBUF,0DH;向緩沖區(qū)中填入數(shù)字 MOVBUF+1,01H MOVBUF+2,0CH MOVBUF+3,0EH MOVBUF+4,08H MOVBUF+5,08H RETCODEENDSENDSTART思考題修改程序使之可以顯示其他字符，如“AHUT09”.修改的程序：CODE SEGMENT ;display"DICE88" ASSUME CS:CODE ORG2DF0HSTART: JMPSTART0PA EQU0FF20H ;字位口PB EQU0FF21H ;字形口PC EQU0FF22H ;鍵入口BUF DB?,?,?,?,?,?data1: db0c0h,0f9h,0a4h,0b0h,99h,92h,82h,0f8h,80h,90h,88h,83h,0c6h,0a1h db86h,8eh,89h,0c1h,87h,0deh,0c7h,8ch,0f3h,0bfh,8FH,0F0HSTART0: CALLBUF1CON1: CALLDISP JMPCON1DISP: MOVAL,0FFH ;00H MOVDX,PA OUTDX,AL MOVCL,0DFH ;顯示子程序,5ms MOVBX,OFFSETBUFDIS1: MOVAL,[BX] MOVAH,00H PUSHBX MOVBX,OFFSETDATA1 ADDBX,AX MOVAL,[BX] POPBX MOVDX,PB OUTDX,AL MOVAL,CL MOVDX,PA OUTDX,AL PUSHCXDIS2: MOVCX,00A0H LOOP$ POPCX CMPCL,0FEH ;01H JZLX1 MOVAL,0FFH ;00H MOVDX,PA OUTDX,AL INCBX RORCL,1 ;SHRCL,1 JMPDIS1LX1: MOVAL,0FFH MOVDX,PB OUTDX,AL RETBUF1: MOVBUF,0AH MOVBUF+1,10H MOVBUF+2,11H MOVBUF+3,12H MOVBUF+4,00H MOVBUF+5,09H RETCODEENDSENDSTART實(shí)驗(yàn)二8259單級(jí)中斷控制器實(shí)驗(yàn)實(shí)驗(yàn)?zāi)康恼莆?259中斷控制器的接口方法。掌握8259中斷控制器的應(yīng)用編程實(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。實(shí)驗(yàn)步驟8259的INT連8088的INTR；8259的INTA連8088的INTA；“”插孔和8259的3號(hào)中斷IR3插孔相連，“”端初始為低電平；8259的CS端接FF80H孔。輸入并運(yùn)行實(shí)驗(yàn)程序，系統(tǒng)顯示8259－1。按動(dòng)AN開關(guān)按鈕，按滿5次顯示good。實(shí)驗(yàn)程序清單CODE SEGMENT;ASSUME CS: CODEINTPORT1EQU0FF80HINTPORT2EQU0FF81HINTQ3 EQUINTREEUP3INTQ7 EQUINTREEUP7PAEQU0FF20H ;字位口PBEQU0FF21H ;字形口PCEQU0FF22H ;鍵入口ORG12D0HSTART: JMPSTART0BUF DB?,?,?,?,?,?intcnt db?data1:db0c0h,0f9h,0a4h,0b0h,99h,92h,82h,0f8h,80h,90h,88h,83h,0c6h,0a1h db86h,8eh,0ffh,0ch,89h,0deh,0c7h,8ch,0f3h,0bfh,8FHSTART0: CLD CALLBUF1 CALLWRINTVER ;WRITEINTRRUPT ;對(duì)8259A的初始化 MOVAL,13H;ICW1，需要ICW4 MOVDX,INTPORT1;0FF80H，A0=0 OUTDX,AL MOVAL,08H;ICW2,中斷類型號(hào)為高5位 MOVDX,INTPORT2;A0=1 OUTDX,AL MOVAL,09H;ICW3，IR1和IR1分別連有從控8259A OUTDX,AL;A0=1 MOVAL,0F7H;ICW4 OUTDX,AL;A0=1 MOVintcnt,01H ;TIME=1 STIWATING: CALLDISP ;DISP8259-1 JMPWATING WRINTVER: MOVAX,0H;寫中斷，中斷分別為IR3和IR7 MOVES,AX;設(shè)置es的值 MOVDI,002CH;設(shè)置di的值 LEAAX,INTQ3 STOSW MOVAX,0000h STOSW MOVDI,003CH LEAAX,INTQ7 STOSW MOVAX,0000h STOSW RETINTREEUP3: CLI pushax pushbx pushcx pushdx MOVAL,INTCNT CALLCONVERS MOVBX,OFFSETBUF ;077BH MOVAL,10H MOVCX,05H;計(jì)數(shù)器INTRE0: MOV[BX],AL INCBX LOOPINTRE0;循環(huán)五次 MOVAL,20H MOVDX,INTPORT1 OUTDX,AL ADDINTCNT,01H CMPINTCNT,06H JNAINTRE2;INTCNT值小于6 CALLBUF2;緩沖區(qū)中存放輸出good的數(shù)據(jù);DISP:goodINTRE1: CALLDISP;輸出good JMPINTRE1CONVERS: ANDAL,0FH;屏蔽高4位 MOVBX,offsetbuf ;077AH MOV[BX+5],AL RETINTRE2: MOVAL,20H MOVDX,INTPORT1 OUTDX,AL popdx popcx popbx popax STI IRETINTREEUP7: CLI MOVAL,20H MOVDX,INTPORT1 OUTDX,AL callbuf3 ;緩沖區(qū)域存放輸出err的數(shù)據(jù);disp:errINTRE3: CALLDISP JMPINTRE3DISP: MOVAL,0FFH ;00H MOVDX,PA OUTDX,AL MOVCL,0DFH ;20H;顯示子程序,5ms MOVBX,OFFSETBUF;緩沖區(qū)的偏移地址放入bx寄存器中DIS1: MOVAL,[BX] MOVAH,00H PUSHBX MOVBX,OFFSETDATA1 ADDBX,AX;獲取輸出數(shù)據(jù)的地址 MOVAL,[BX] POPBX MOVDX,PB;數(shù)據(jù)從端口b輸出 OUTDX,AL MOVAL,CL MOVDX,PA OUTDX,AL PUSHCXDIS2: MOVCX,00A0H LOOP$POPCX CMPCL,0FEH ;01H JZLX1 INCBX RORCL,1 ;SHRCL,1 JMPDIS1LX1: MOVAL,0FFH MOVDX,PB OUTDX,AL RETBUF1: MOVBUF,08H MOVBUF+1,02H MOVBUF+2,05H MOVBUF+3,09H MOVBUF+4,17H MOVBUF+5,01H RETBUF2: MOVBUF,09H MOVBUF+1,00H MOVBUF+2,00H MOVBUF+3,0dH MOVBUF+4,10H MOVBUF+5,10H RETBUF3: MOVBUF,0eH MOVBUF+1,18H MOVBUF+2,18H MOVBUF+3,10H MOVBUF+4,10H MOVBUF+5,10H RETCODEENDSENDSTART思考題若用IR5產(chǎn)生中斷，要求修改硬件和軟件并調(diào)試硬件連線：8259的INT連8088的INTR8259的INTA連8088的INTA；“”插孔和8259的5號(hào)中斷IR5插孔相連，“”端初始為低電平4、8259的CS端接FF80H孔。代碼清單：CODE SEGMENT ;ASSUME CS: CODEINTPORT1EQU0FF80HINTPORT2EQU0FF81HINTQ5 EQUINTREEUP5INTQ7 EQUINTREEUP7PAEQU0FF20H ;字位口PBEQU0FF21H;字形口PCEQU0FF22H ;鍵入口ORG12D0HSTART: JMPSTART0BUF DB?,?,?,?,?,?intcnt db?data1: db0c0h,0f9h,0a4h,0b0h,99h,92h,82h,0f8h,80h,90h,88h,83h,0c6h,0a1h db86h,8eh,0ffh,0ch,89h,0deh,0c7h,8ch,0f3h,0bfh,8FHSTART0: CLD CALLBUF1 CALLWRINTVER ;WRITEINTRRUPT ;對(duì)8259A的初始化 MOVAL,13H ;ICW1，需要ICW4 MOVDX,INTPORT1 ;0FF80H，A0=0 OUTDX,AL MOVAL,08H ;ICW2,中斷類型號(hào)為高5位 MOVDX,INTPORT2 ;A0=1 OUTDX,AL MOVAL,09H;ICW3，IR1和IR1分別連有從控8259A OUTDX,AL ;A0=1 MOVAL,0F7H ;ICW4 OUTDX,AL;A0=1 MOVintcnt,01H ;TIME=1 STIWATING: CALLDISP ;DISP8259-1 JMPWATING WRINTVER: MOVAX,0H ;寫中斷，中斷分別為IR3和IR7 MOVES,AX ;設(shè)置es的值 MOVDI,002CH ;設(shè)置di的值 LEAAX,INTQ3 STOSW MOVAX,0000h STOSW MOVDI,003CH LEAAX,INTQ7 STOSW MOVAX,0000h STOSW RETINTREEUP3: CLIpushaxpushbxpushcxpushdx MOVAL,INTCNT CALLCONVERS MOVBX,OFFSETBUF ;077BH MOVAL,10H MOVCX,05H ;計(jì)數(shù)器INTRE0: MOV[BX],AL INCBX LOOPINTRE0 ;循環(huán)五次 MOVAL,20H MOVDX,INTPORT1 OUTDX,AL ADDINTCNT,01H CMPINTCNT,06H JNAINTRE2 ;INTCNT值小于6CALLBUF2 ;緩沖區(qū)中存放輸出good的數(shù)據(jù);DISP:goodINTRE1: CALLDISP ;輸出good JMPINTRE1CONVERS: ANDAL,0FH ;屏蔽高4位 MOVBX,offsetbuf ;077AH MOV[BX+5],AL RETINTRE2: MOVAL,20H MOVDX,INTPORT1 OUTDX,ALpopdxpopcxpopbxpopax STI IRETINTREEUP7: CLI MOVAL,20H MOVDX,INTPORT1 OUTDX,AL callbuf3 ;緩沖區(qū)域存放輸出err的數(shù)據(jù) ;disp:errINTRE3: CALLDISP JMPINTRE3DISP: MOVAL,0FFH ;00H MOVDX,PA OUTDX,A