單片機(jī)課程設(shè)計(jì)-波形發(fā)生器-資料下載頁
2025-01-18 14:09本頁面
【正文】 HIMOV DPTR,P8255CMOV A,10HMOVX @DPTR,AMOV DPTR,P8255AMOV A,NUMS2MOVX @DPTR,ALCALL DINGSHIMOV DPTR,P8255CMOV A,18HMOVX @DPTR,AMOV DPTR,P8255AMOV A,NUMS3MOVX @DPTR,APOP ACCRETDISPFANGBO:LCALL DINGSHIPUSH ACCMOV A,R4MOV B,5DIV ABADD A,12ANL A,0FHMOV DPTR,LEDSEGMOVC A,@A+DPTRMOV NUMS1,AMOV A,R4MOV B,5DIV ABADD A,12SWAP AANL A,0FHMOV DPTR,LEDSEGMOVC A,@A+DPTRMOV NUMS2,AMOV DPTR,P8255CMOV A,08HMOVX @DPTR,AMOV DPTR,P8255AMOV A,NUMS1MOVX @DPTR,ALCALL DINGSHIMOV DPTR,P8255CMOV A,10HMOVX @DPTR,AMOV DPTR,P8255AMOV A,NUMS2MOVX @DPTR,ALCALL DINGSHIPOP ACCRETDISP:MOV DPTR,P8255A 。顯示鍵值MOV A,KEYVALMOVX @DPTR,ARETRD_KB:MOV A,01H 。掃描第二行MOV DPTR,P8255CMOVX @DPTR,AMOV DPTR,P8255BMOVX A,@DPTRCJNE A,0FFH,J_KEYL0 。判斷是否有鍵按下，有鍵轉(zhuǎn)JKEYL0SJMP NOKEYJ_KEYL0:LCALL DINGSHI 。延時(shí)消抖MOV DPTR,P8255B 。讀鍵值MOVX A,@DPTRMOV R7,08HCJNE A,0FFH,KEYCAL 。計(jì)算鍵值SJMP NOKEYKEYCAL:MOV R0,08HSHIFT:RRC AJNC CALCINC R7DJNZ R0,SHIFTCALC:MOV DPTR,LEDSEG 。換算顯示碼MOV A,R7MOVC A,@A+DPTRMOV KEYVAL,AMOV R6,ASJMP KEYWAITNOKEY: SJMP KEYEXITKEYWAIT:MOV DPTR,P8255B 。等待鍵釋放MOVX A,@DPTRCJNE A,0FFH,KEYWAITKEYEXIT:RETDINGSHI:MOV R0,5 。延時(shí)程序DINGSHI1:MOV R1,27DJNZ R1,$DJNZ R0,DINGSHI1RETLEDSEG:DB 3FH,06H,5BH,4FH,66H,6DH,7DH,07H DB 7FH,6FH,77H,7CH,39H,5EH,79H,71HTab: DB 80H,83H,86H,89H,8DH,90H,93H,96H DB 99H,9CH,9FH,0A2H,0A5H,0A8H,0ABH,0AEH DB 0B1H,0B4H,0B7H,0BAH,0BCH,0BFH,0C2H,0C5H DB 0C7H,0CAH,0CCH,0CFH,0D1H, 0D4H,0D6H,0D8H DB 0DAH,0DDH,0DFH,0E1H,0E3H, 0E5H,0E7H,0E9H DB 0EAH,0ECH,0EEH,0EFH,0F1H, 0F2H,0F4H,0F5H DB 0F6H,0F7H,0F8H,0F9H,0FAH, 0FBH,0FCH,0FDH DB 0FDH,0FEH,0FFH,0FFH,0FFH, 0FFH,0FFH,0FFH DB 0FFH,0FFH,0FFH,0FFH,0FFH, 0FFH,0FEH,0FDH DB 0FDH,0FCH,0FBH,0FAH,0F9H, 0F8H,0F7H,0F6H DB 0F5H,0F4H,0F2H,0F1H,0EFH, 0EEH,0ECH,0EAH DB 0E9H,0E7H,0E5H,0E3H,0E1H, 0DEH,0DDH,0DAH DB 0D8H,0D6H,0D4H,0D1H,0CFH, 0CCH,0CAH,0C7H DB 0C5H,0C2H,0BFH,0BCH,0BAH, 0B7H,0B4H,0B1H DB 0AEH,0ABH,0A8H,0A5H,0A2H, 9FH, 9CH, 99H DB 96H, 93H, 90H, 8DH, 89H, 86H, 83H, 80H DB 80H, 7CH, 79H, 78H, 72H, 6FH, 6CH, 69H DB 66H, 63H, 60H, 5DH, 5AH, 57H, 55H, 51H DB 4EH, 4CH, 48H, 45H, 43H, 40H, 3DH, 3AH DB 38H, 35H, 33H, 30H, 2EH, 2BH, 29H, 27H DB 25H, 22H, 20H, 1EH, 1CH, 1AH, 18H, 16H DB 15H, 13H, 11H, 10H, 0EH, 0DH, 0BH, 0AH DB 09H, 08H, 07H, 06H, 05H, 04H, 03H, 02H DB 02H, 01H, 00H, 00H, 00H, 00H, 00H, 00H DB 00H, 00H, 00H, 00H, 00H, 00H, 01H, 02H DB 02H, 03H, 04H, 05H, 06H, 07H, 08H, 09H DB 0AH, 0BH, 0DH, 0EH, 10H, 11H, 13H, 15H DB 16H, 18H, 1AH, 1CH, 1EH, 20H, 22H, 25H DB 27H, 29H, 2BH, 2EH, 30H, 33H, 35H, 38H DB 3AH, 3DH, 40H, 43H, 45H, 48H, 4CH, 4EH DB 51H, 55H, 57H, 5AH, 5DH, 60H, 63H, 66H DB 69H, 6CH, 6FH, 72H, 76H, 79H, 7CH, 80H END5 系統(tǒng)調(diào)試與分析三角波方波 正弦波錯(cuò)誤1:按下ABC鍵之后不能得到相應(yīng)的波形.原因分析:在選擇按鍵輸出波形的時(shí)候寄存器沒有堆棧導(dǎo)致寄存器相混淆.錯(cuò)誤2:按下一個(gè)鍵之后再按另一個(gè)鍵沒有反應(yīng).原因分析:在軟件產(chǎn)生波形的的時(shí)候沒有掃描鍵盤而無法跳出波形產(chǎn)生的程序.CS8255接F228 F218接CS0832 F230接CS0809 IN0 接電位器 示波器一端接地，一端接數(shù)模轉(zhuǎn)換VOUT6 心得體會(huì) 這次單片機(jī)課程設(shè)計(jì)是我上大學(xué)以來第一次獨(dú)立完成的設(shè)計(jì),雖說設(shè)計(jì)的過程很是艱辛,但最終我還是堅(jiān)持下來,并且完成了絕大多數(shù)的功能,我對自己的表現(xiàn)感到十分滿意,這畢竟是少有的鍛煉自己動(dòng)手能力和思維能力的機(jī)會(huì),雖然自己事情很多,但還是靜下心來,我感覺不是很難,很多內(nèi)容以前都學(xué)過,錯(cuò)誤百出,波形怎么都調(diào)不出來,于是我請教了老師,要么就是閃的太快,經(jīng)過我多次調(diào)試,過程更為重要,主要還是設(shè)計(jì)的流程思路要清晰,.參考文獻(xiàn)[1] 機(jī)械工業(yè)出版社 2010年1月第2版第二次印刷[2] [M].[3] 張毅剛, 彭喜圓, 譚曉昀, [M].哈爾濱工業(yè)大學(xué)出版社.[4] [M].高等教育出版社.張洪潤,[M].清華大學(xué)出版社。第 27 頁 共 27
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