計(jì)算機(jī)硬件課程設(shè)計(jì)電子琴-在線瀏覽
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【正文】 下：圖10 顯示子程序流程圖 5. 組員心得體會(huì)重慶大學(xué)自動(dòng)化學(xué)院計(jì)算機(jī)硬件課程設(shè)計(jì)電子琴耗時(shí)兩周，很坑，正好占據(jù)考研時(shí)間，真TM賤 本實(shí)驗(yàn)相當(dāng)成功，按鍵靈敏，音樂(lè)準(zhǔn)確程序由大神親自編寫唐丹老師相當(dāng)好，既可愛又漂亮要求也不嚴(yán)要是答辯碰上黃勤，等著死吧 歡迎學(xué)妹垂詢?。。? 2725714501 祝學(xué)長(zhǎng)考研成功?。?！ 6．操作說(shuō)明書 連線要求 端口地址連接：第五片8255A片選與320H相連；8254片選與300H相連 。8254連接： GATE2與PC7口連接；CLK2與3MHz 相連；OUT2與揚(yáng)聲器輸入口相連。連線后設(shè)備全貌：彈奏功能：全速運(yùn)行之后，當(dāng)K2K1為10時(shí)（扳上為1，扳下為0），按下鍵盤的17按鈕則會(huì)對(duì)應(yīng)發(fā)出低音部的鍵盤17的聲音；當(dāng)K2K1為01是，按下鍵盤的17按鈕則會(huì)對(duì)應(yīng)發(fā)出高音音部的鍵盤17的聲音；當(dāng)K2K1為非以上情況時(shí)，按下鍵盤的17按鈕則會(huì)對(duì)應(yīng)發(fā)出中音部的鍵盤17的聲音。樂(lè)曲《歡樂(lè)頌》播放示范：當(dāng)將K3開關(guān)板上時(shí)，則會(huì)自動(dòng)循環(huán)播放歌曲，且三色LED首位會(huì)現(xiàn)實(shí)為B，扳下則停止播放，并恢復(fù)到彈奏功能模塊工作方式。 .486PORTA EQU 320HPORTB EQU 324HPORTC EQU 328HCTRL EQU 32CHPORTA4 EQU 300HPORTB4 EQU 304HPORTC4 EQU 308HCTRL4 EQU 30CHCODE SEGMENT USE16 ASSUME CS:CODE ORG 1000H BEG: JMP START HFDINGWEI DW ? HFQISHI DW ? HFZHONGZHI DW ? HFBIAOZHI DW ? GONGNENG DB ? YINFU DB ? PINLV DW ? PANDUAN DB ? SHANGYIN DB ? SHANGGONG DB ? DENGZHI DW ? LOWD DW 101,112,125,134,151,167,186 。主程序，用于掃描功能，并且調(diào)用相關(guān)的程序 PUSH CX ?；卦L的初始化 LEA SI,HUIFANGCHUZHI: MOV AX,0000H MOV WORD PTR[SI],AX INC SI INC SI LOOP CHUZHI LEA SI,HUIFANG MOV HFBIAOZHI,0000H MOV HFDINGWEI,SI MOV HFQISHI,SI MOV SI,HFQISHI 。做出回放地址的終止點(diǎn) ADD AX,100H MOV HFZHONGZHI,AX CHUDENG : 。形成功能代號(hào)，便于下面選擇功能 MOV DX,PORTC IN AL,DX AND AL,0FH CMP AL,0FH CALL FNDKEY1 MOV CL,GONGNENG MOV SHANGGONG,CL CMP GONGNENG,01H JZ RELOP1 CMP GONGNENG,02H JZ RELOP1 CMP GONGNENG,03H JZ RELOP1 CMP GONGNENG,04H JZ RELOP2 CMP GONGNENG,08H JZ RELOP3 RELOP1: CALL GONGDENG CALL TANQIN JMP RECEIVERELOP2: CALL GONGDENG CALL GEQU JMP RECEIVERELOP3: CALL GONGDENG CALL HUIF JMP RECEIVE 。尋找對(duì)應(yīng)的17音符的按鍵是否按下的子程序，把得到的音符值傳給YINFU MOV CX,02H MOV BL,0FDH 。如果沒(méi)有音符鍵按下則置YINFU為00HLOP5: RET KSCAN2 ENDPFNDKEY1 PROC NEAR 。形成音符鍵的鍵值 SHL BL,4 OR AL,BL SHR BL,4 MOV YINFU,AL RETFNDKEY2 ENDP SEARCH_FZ PROC NEAR CMP YINFU,0EDH JZ JIAN1 CMP YINFU,0EBH JZ JIAN2 CMP YINFU,0E7H JZ JIAN3 CMP YINFU,0DEH JZ JIAN4 CMP YINFU,0DDH JZ JIAN5 CMP YINFU,0DBH JZ JIAN6 CMP YINFU,0D7H JZ JIAN7 JIAN1: MOV YINFU,01H JMP DIANYAJIAN2: MOV YINFU,02H JMP DIANYAJIAN3: MOV YINFU,03H JMP DIANYAJIAN4: MOV YINFU,04H JMP DIANYAJIAN5: MOV YINFU,05H JMP DIANYAJIAN6: MOV YINFU,06H JMP DIANYAJIAN7: MOV YINFU,07H JMP DIANYADIANYA: MOV AL,YINFU MOV AH,00H MOV DENGZHI,AX CMP GONGNENG,01H JNZ LOPQ LEA SI,HIG JMP CHAOBIAOLOPQ:CMP GONGNENG,02H JNZ LOP12 LEA SI,LOWD JMP CHAOBIAOLOP12: LEA SI,MID CHAOBIAO: CALL YINDENG MOV AL,YINFU MOV AH,00H SHL AX,1 SUB AX,2 ADD SI,AX MOV DI,WORD PTR[SI] CALL HFGENGXIN RETSEARCH_FZ ENDP FASHENG PROC NEAR。揚(yáng)聲器送初值 MOV DX,PORTC MOV AL,10000000B OUT DX,AL WAIT1: MOV PANDUAN,00H
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