智能穩(wěn)壓電源設(shè)計(jì)-資料下載頁(yè)
2025-06-30 02:14本頁(yè)面
【正文】 附錄一 變壓電路圖附錄二 智能穩(wěn)壓電路圖 附錄三 源程序ORG 30HSTART:MOV R1 ；輸出電壓初使化 MOV 40H,0,64H ；設(shè)定為3V MOV 41H,3 MOV 42H,0DL: JB ,DL1 ；+鍵按鍵處理 CALL DELAY CJNE R1,0F0H,DL3 JMP DL2DL3: INC R1 ； INC R1 INC 42H MOV R5,42H CJNE R5,0AH,DL2 MOV 42H,0 INC 41H MOV R5,41H CJNE R5,0AH,DL2 MOV 41H,0 INC 40H JMP DL2DL1: JB ,DL2 ；鍵按鍵處理 CALL DELAY CJNE R1,03CH,DL4 JMP DL2DL4: DEC R1 ； DEC R1 DEC 42H MOV R5,42H CJNE R5,0FFH,DL2 MOV 42H,9 DEC 41H MOV R5,41H CJNE R5,0FFH,DL2 MOV 41H,9 DEC 40H MOV R5,40H CJNE R5,0FFH,DL2 MOV 40H,0DL2: MOV P0,R1 ；數(shù)據(jù)顯示 CALL DISP JMP DLDELAY:MOV R4,02H ； 延時(shí)DELAY3:MOV R3,0FFHDELAY1:MOV R2,04FHDELAY2:DJNZ R2,DELAY2 DJNZ R3,DELAY1 DJNZ R4,DELAY3 RETDISP: MOV P3,0F7H ；顯示子程序 MOV P2,3EH ；顯示單位 CALL DELA MOV DPTR,TAB ；顯示小數(shù)位 MOV A,42H MOVC A,@A+DPTR MOV P3,0FBH MOV P2,A CALL DELA MOV A,41H ；顯示個(gè)位數(shù) MOVC A,@A+DPTR ；至小數(shù)點(diǎn) ADD A,80H MOV P3,0FDH MOV P2,A CALL DELA MOV R5,40H CJNE R5,0,DISP1 RETDISP1: MOV A,40H ；顯示十位數(shù) MOVC A,@A+DPTR MOV P3,0FEH MOV P2,A CALL DELA RETDELA: MOV R3,04FH ；延時(shí)DELA1: MOV R2,57HDELA2: DJNZ R2,DELA2 DJNZ R3,DELA1 RETTAB:DB 3FH,06H,5BH,4FH,66H,6DH,7DH,07H,7FH,6FH,77H ；數(shù)碼管顯示數(shù)據(jù)表 END
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