LCALL INIT8279 ;初始化8279
WAIT: MOV DPTR,#Z8279 MOVX A,@DPTR
ANL A,#0FH JZ WAIT MOV A,#40H MOVX @DPTR,A MOV DPTR,#D8279 MOVX A,@DPTR ANL A,#3FH MOV R4,#00H MOV R5,A LCALL DISLED
SJMP WAIT
INIT8279: ;8279 PUSH DPH ; PUSH DPL
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初始化子程序 保存现场 VCC8×4KΩU112345678P10P11P12P13P14P15P16P17INT1INT0T1T0EA/VPX1X291716C322μfC6U822μfR21KΩVCCC422μf87654321C522μfR2INR2OUTT2OUTT2INV-T1INC2-R1OUTC2+R1INC1-T1OUTV+GNDC1+VCCMAX232C7910111213141516LED2RESETRDWRAT89C52RXDTXDALE/PPSEN10113029R4100ΩP20P21P22P23P24P25P26P27P00P01P02P03P04P05P06P071312C115VCC1412MHZ31191839383736353433322122232425262728P0.0P0.1P0.2P0.3P0.4P0.5P0.6P0.7DB0DB1DB2DB3DB4DB5DB6DB716151413121110987654321VCC液晶显示
22μf16PINVCCC222μf附录C 主站硬件电路总图
R1200ΩLED1R5故障灯正常灯C8J22μfVCC22μfR6200Ω200Ω 162738495 DB9
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VCCVCCVCC330KΩR71.5KΩU3R7111315172A12A22A32A41G2G74LS2442Y12Y22Y32Y4119975324681A11A21A31A4R10R11R12220Ω1Y11Y21Y31Y418161412R9U5R615812U6B1B2B3B4FT 5754VCCC1C2C3C4GND24911310VCC42BYG228M1VCCR8220KΩ4Q3GD12TRIGDIS8VCC67LTV818A555C70.33μfC60.01μfR3VCC330KΩR41.5KΩU4R712345678P10P11P12P13P14P15P16P171312C40.01μfC131C322μfC222μfR2200ΩR11KΩS1922μf1716Y12MHZ1918VCC1514INT1INT0T1T0EA/VPX1X2RESETRDWRAT89C52C10U1122μfC1122μf87654321C1222μfR2INR2OUTT2OUTT2INV-T1INC2-R1OUTC2+R1INC1-T1OUTV+GNDC1+VCCMAX232C9910111213141516U15CVoltTHRGNDU77126U227262524P00P01P02P03P04P05P06P07P20P21P22P23P24P25P26P2739383736353433322122232425262728121314151617181942210112139OUTA0OUTA1OUTA2OUTA3DB0DB1DB2DB3DB4DB5DB6DB7IRQCSRDWRA0CLKRESET8279RXDTXDALE/PPSEN10113029OUTB0OUTB1OUTB2OUTB3BDSL0SL1SL2SL3RL0RL1RL2RL3RL4RL5RL6RL7SHIFTCNTL/S3130292823VCC32333435Keyboard381392132455667788363715141312ABCD345ABCDLTBI/RBORBI74LS48U86LED3VCCabcdefg13121110915141234567abcdefg1DB1DB2DB3DB4810VCCR522KΩ4Q3GD22TRIGDISLTV818A555C50.33μfCVoltTHR4*4键盘560123456789123456791011VT4VT5VT61189VT7
GND1R162kΩR172kΩR182kΩR192kΩ74LS145U9123ABC456VCCVCCR13100ΩVT2VT1C8LED2LED1J22μfVCC22μfDB9R14VT3附录D 从站硬件电路总图
E1E2E3Y0Y1Y2Y3Y4Y5Y6Y71514131211109719011VCC74ALS138LSSPEAKER162738495正常灯故障灯R15200Ω200Ω
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附表E 3D效果图
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