接口課程設(shè)計(jì)

7I課程設(shè)計(jì)題目電子琴I(mǎi)I原始資料1.設(shè)計(jì)的主要內(nèi)容72.設(shè)計(jì)參考1234567頻率）III課程設(shè)計(jì)內(nèi)容1、課程設(shè)計(jì)的目的意義：2、本課題研究的主要內(nèi)容：73、提交的成果：一份符合畢業(yè)設(shè)計(jì)論文規(guī)范的課程設(shè)計(jì)說(shuō)明書(shū)____________年月日1.1設(shè)計(jì)背景（1）軟件定時(shí)TT一（2）硬件定時(shí)和71.2編寫(xiě)目的通過(guò)課程設(shè)計(jì)培養(yǎng)同學(xué)們的系統(tǒng)設(shè)計(jì)能力，使同學(xué)們達(dá)到以下能力訓(xùn)練：1.3開(kāi)發(fā)環(huán)境1.3.1設(shè)計(jì)環(huán)境及語(yǔ)言DJ_598K實(shí)驗(yàn)開(kāi)發(fā)系統(tǒng)；PC機(jī)；2有，⑴表⑵表)表)2.1設(shè)計(jì)總要求72.2設(shè)計(jì)原理1234567頻率）2.3硬件資源1.8253編程定時(shí)/計(jì)數(shù)器(1)8253主要特性8；(2)8253的內(nèi)部結(jié)構(gòu)(3)8253的功能用途(4)連接插孔010101(5)8253的實(shí)驗(yàn)?zāi)K如圖2.1)圖2.18253引腳圖（A3）2.脈沖發(fā)生電路(圖2.2脈沖發(fā)生電路圖3.分頻電路（C5）T時(shí)，圖2.3分頻電路圖4.音頻功效模塊（B3）圖2.4音頻功效模塊圖LM386芯片介紹：(1)功能介紹：器18,,在8(2)特性：或；；2.4設(shè)計(jì)原理圖圖2.5實(shí)驗(yàn)接線的；；2.6軟件設(shè)計(jì)；/3，;；否？是圖2.6電子琴程序流程圖設(shè)置定時(shí)器子圖2.7設(shè)置定時(shí)器子程序流程圖3.1代碼設(shè)計(jì)3.1.1計(jì)數(shù)初值設(shè)定采用T1_2.0MHZ時(shí)，按照各音階頻率，計(jì)算各計(jì)數(shù)初值，其對(duì)應(yīng)關(guān)系如下：440.00HZ-----------------------------------4545；493.00HZ-----------------------------------4050；554.37HZ-----------------------------------3607；587.33HZ-----------------------------------3405；659.26HZ-----------------------------------3034；739.99HZ-----------------------------------2703；830.61HZ-----------------------------------2408；3.1.2代碼程序ASSUMECS:CODE,DS:CODECONTROLEQU43HCOUNT0EQU40HCOUNT1EQU41HCOUNT2EQU42HIOCONPTEQU0FF2BHIOBPTEQU0FF29HIOAPTEQU0FF28HPAPBPCEQU0FF20HEQU0FF21HEQU0FF22H;字位口;字形口;鍵入口ORG18F0HSTART2:JMPSTART1BUFDB?,?,?,?,?,?KZDB?LTIMEDB?LKEYZPDB?DW?DATA0:DB0C0H,0F9H,0A4H,0B0H,99H,92H,82H,0F8HDB80H,90H,88H,83H,0C6H,0A1HDB86H,8EH,0FFH,0CH,89H,0DEH,0C7H,8CH,0F3H,0BFH,8FH,0F1HDATA2:DW4545,4050,3607,3405DW3034,2703,2408,2273START1:MOVAX,CSMOVDS,AXCALLBUF1MOVAL,88HMOVDX,IOCONPTOUTDX,ALMOVDX,IOBPTMOVAL,00OUTDX,ALMOVZP,OFFSETBUFREDIKEY:CALLDISPKEYCMPKZ,09HJNCREDIKEYCMPKZ,01HJCREDIKEYMOVBX,ZPMOVAL,KZMOV[BX],ALCMPBX,OFFSETBUF+5JZZP1INCBXMOVZP,BXJMPOUTTONEMOVZP,OFFSETBUFZP1:OUTTONE:MOVDX,IOBPTMOVAL,0FFHOUTDX,ALMOVAL,KZMOVAH,00HDECAXSHLAX,1MOVBX,OFFSETDATA2ADDBX,AXMOVAX,[BX]CALLT8253MOVCX,20HCON1:PUSHCXCALLDISPPOPCXLOOPCON1MOVDX,IOBPTMOVAL,00OUTDX,ALJMPREDIKEYT8253:PUSHAXMOVAL,36HMOVDX,CONTROLOUTDX,ALPOPAX;計(jì)數(shù)器0,16位二進(jìn)制,方式3。MOVDX,COUNT1OUTDX,ALMOVAL,AHOUTDX,ALRETDISPKEY:CALLDISPCALLKEYMOVAH,ALMOVBL,LTIMEMOVBH,LKEYMOVAL,01HMOVDX,PAOUTDX,ALCMPAH,BHMOVBH,AHMOVAH,BLJZDISK4;NEWKEY;LTIME;LKEY;0FF21H;BH=NEWKEY;AL=TIMEMOVBL,88HMOVAH,88HDISK4:DECAHCMPAH,82HJZDISK6CMPAH,0EHJZDISK6CMPAH,00HJZDISK5MOVAH,20HDECBLJMPDISK7DISK5:MOVAH,0FHDISK6:MOVBL,AHMOVAH,BHDISK7:MOVLTIME,BLMOVLKEY,BHMOVKZ,BHMOVAL,AHRETKEY:MOVAL,0FFHMOVDX,PBOUTDX,ALMOVBL,00HMOVAH,0FEHMOVCX,08HKEY1:MOVAL,AHMOVDX,PAOUTDX,ALROLAL,01HMOVAH,ALNOPNOPNOPNOPNOPNOPMOVDX,PCINAL,DXNOTALNOPNOPANDAL,0FHJNZKEY2INCBLLOOPKEY1JMPNKEYKEY2:TESTAL,01HJEKEY3MOVAL,00HJMPKEY6KEY3:TESTAL,02HJEKEY4MOVAL,08HJMPKEY6KEY4:TESTAL,04HJEKEY5MOVAL,10HJMPKEY6KEY5:TESTAL,08HJENKEYMOVAL,18HKEY6:ADDAL,BLCMPAL,10HJNCFKEYMOVBL,ALMOVBH,0HMOVSI,OFFSETDATA2MOVAL,[BX+SI]RETNKEY:MOVAL,20HFKEY:RETDATA1:DB07H,04H,08H,05H,09H,06H,0AH,0BHDB01H,00H,02H,0FH,03H,0EH,0CH,0DHDISP:MOVAL,0FFHMOVDX,PAOUTDX,AL;00HMOVCL,0DFHMOVBX,OFFSETBUF;20H;顯示子程序,5MSDIS1:MOVAL,[BX]MOVAH,00HPUSHBXMOVBX,OFFSETDATA1ADDBX,AXMOVAL,[BX]POPBXMOVDX,PBOUTDX,ALMOVAL,CLMOVDX,PAOUTDX,ALPUSHCXDIS2:MOVCX,0A0HLOOP$POPCXCMPCL,0FEHJZLX1INCBXRORCL,1JMPDIS1LX1:MOVAL,0FFHMOVDX,PBOUTDX,ALRETBUF1:MOVBUF,11HMOVBUF+1,10HMOVBUF+2,10HMOVBUF+3,10HMOVBUF+4,10HMOVBUF+5,10HRETCODEENDSENDSTART3.2程序調(diào)試,能夠根據(jù)要求設(shè)計(jì)一些常用的較為簡(jiǎn)單的接口控制線路，對(duì)微機(jī)接口技術(shù)新的發(fā)展趨勢(shì)有所了解。計(jì)主要是設(shè)計(jì)一個(gè)電子琴，要求用鍵盤(pán)輸入1234567按鍵，產(chǎn)生不同頻率的聲音，來(lái)模擬電子琴發(fā)出音階樂(lè)譜。要發(fā)出聲音，要用芯片實(shí)現(xiàn)，首先想到的是課堂上學(xué)過(guò)的8253定時(shí)/應(yīng)頻率的計(jì)數(shù)初值，進(jìn)而實(shí)現(xiàn)不同的聲音。要產(chǎn)生頻率，就用到脈沖發(fā)生器、分頻器；產(chǎn)生音質(zhì)好、播放出來(lái)聲音，就用到音頻功效模塊。各個(gè)模塊進(jìn)行相應(yīng)的連接，來(lái)實(shí)現(xiàn)電子