畢業(yè)設計論文-基于單片機的低頻信號發(fā)生器設計-資料下載頁
2025-06-01 21:49本頁面
【正文】 TART START:MOV DPTR,0FFH L1:MOV A,00H MOVX @DPTR,A LCALL DELAY MOV A,0FFH MOVX @DPTR,A LCALL DELAY SJMP L1 DELAY:MOV R0,250 24 D:MOV R1,255 DJNZ R1,$ DJNZ R0,D RET END 2 鋸齒波程序 鋸齒波程序 如下 ： ORG 0000H LJMP L2 ORG 0030H L2: MOV A,00H L21: MOV DPTR,0FFH MOVX @DPTR,A INC A CJNE A,088H,L21 SJMP L2 END 3 三角子波 25 三角波程序如下： ORG 0000H LJMP START ORG 0030H START:MOV DPTR,0FFH MOV A,00H UP:MOVX @DPTR,A INC A CJNE A,0AEH,UP DEC A DOWN:DEC A MOVX @DPTR,A CJNE A,068H, DOWN INC A SJMP UP END 4 梯形波 梯形波程序如下： ORG 0000H LJMP L4 ORG 0030H MOV DPTR,0FFH 26 L4:MOV A,42H UP1:INC A MOVX @DPTR,A CJNE A,0AEH,L5 L5:JC UP1 DOWN1:LCALL DELAY L6:DEC A MOVX @DPTR,A CJNE A,043H,L7 L7:JC L4 SJMP L6 DELAY:MOV R0,65 D:MOV R1,55 DJNZ R1,$ DJNZ R0,D RET END 27 附錄 2 系統(tǒng)電路圖 28 X T A L 218X T A L 119A L E30EA31P S E N29RS T9P 0 .0 /A D 039P 0 .1 /A D 138P 0 .2 /A D 237P 0 .3 /A D 336P 0 .4 /A D 435P 0 .5 /A D 534P 0 .6 /A D 633P 0 .7 /A D 732P 1 .01P 1 .12P 1 .23P 1 .34P 1 .45P 1 .56P 1 .67P 1 .78P 3 .0 /R X D10P 3 .1 /T X D11P 3 .2 /I NT 012P 3 .3 /I NT 113P 3 .4 /T 014P 3 .7 /R D17P 3 .6 /W R16P 3 .5 /T 115P 2 .7 /A 1 528P 2 .0 /A 821P 2 .1 /A 922P 2 .2 /A 1 023P 2 .3 /A 1 124P 2 .4 /A 1 225P 2 .5 /A 1 326P 2 .6 /A 1 427U1A T 8 9 C5 1D1L E D B L U ED2L E D R E DR22 0 RC12 2 u fR12 0 R+ 1 2 vO F F ON12348765D S W 1DI P S W _ 4D3L E D G RE E ND4L E D Y E L L O WR 1 02 0 RR 1 12 0 R X T A L 218X T A L 119A L E30EA31P S E N29RS T9P 0 .0 /A D 039P 0 .1 /A D 138P 0 .2 /A D 237P 0 .3 /A D 336P 0 .4 /A D 435P 0 .5 /A D 534P 0 .6 /A D 633P 0 .7 /A D 732P 1 .01P 1 .12P 1 .23P 1 .34P 1 .45P 1 .56P 1 .67P 1 .78P 3 .0 /R X D10P 3 .1 /T X D11P 3 .2 /I NT 012P 3 .3 /I NT 113P 3 .4 /T 014P 3 .7 /R D17P 3 .6 /W R16P 3 .5 /T 115P 2 .7 /A 1 528P 2 .0 /A 821P 2 .1 /A 922P 2 .2 /A 1 023P 2 .3 /A 1 124P 2 .4 /A 1 225P 2 .5 /A 1 326P 2 .6 /A 1 427U1A T 8 9 C5 1V RE F8G ND3V C C20CS1W R 12DI 34DI 25DI 16DI 07RF B9G ND10IO UT 111IO UT 212DI 713DI 614DI 515DI 416X F E R17W R 218IL E ( B Y 1 /B Y 2 )19U2DA C08 3 22 3 4 5 6 7 8 91R P 1RE S P A C K 8321411U 3 :AL M 3 2 4D1L E D B L U ED2L E D R E DR22 0 RR32 0 0 RC12 2 u f50%R V 11k50%R V 21kQ1NP NR45kR51 0 k567411U 3 :BL M 3 2 4R66kR71 0 kR81 0 kR90 R 1C23 3 0 uR12 0 R+ 1 2 vv c c+ 1 2 v+ 5 v 5 v+ 5 v 5 vO F F ON12348765D S W 1DI P S W _ 4D3L E D G RE E ND4L E D Y E L L O WR 1 02 0 RR 1 12 0 RABCD
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