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[SOLVED] Why this is not working?

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jayanth.devarayanadurga

jayanth.devarayanadurga

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This Circuit is from the book "8051 Microcontrollers and Embedded System Using: Assembly and C" by Mazidi, Page 375. The Circuit Connection are ok but I am getting logic contentions message in Proteus and it is not working? I am attaching mikroC PRO 8051 files + Proteus file. Does the access time of EPROM causing logic contentions? The LED has to blink and program has to be read from EPROM.
 

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  • AT89C52PROM.rar
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