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Code Run from external flash with AT89C51ED2

Thiru N

Dear All,

I'm facing some issue with executing code from external flash in AT89C51ED2 based controller card.

I made EA/ pin GND, but its not executing....

The help greatly appreciated...

Regards
Thiru N

Parents
  • 0 in reply to ²erik malund

    Dear Sir,

    Thanks for your valuable reply..

    Just i migrated from AT89S52 to AT89C51ED2 with same controller board and same package, In AT89S52 code executing from external flash without any issue, but with AT89C51ED2 its not working, its an experiment with this controller.

    I'm using Keil for development and FLIP for internal flash programming.

    I did googling for a while, its conclude that The Flip will disable external execution(default feature)

    So, i studied data sheet of Controller and Flip user manual, i didn't get any solution to enable external execution through flip or from controller..

    Please suggest me to resolve this issue.ASAP

    Reply
    Thiru N

Reply
  • 0 in reply to ²erik malund

    Dear Sir,

    Thanks for your valuable reply..

    Just i migrated from AT89S52 to AT89C51ED2 with same controller board and same package, In AT89S52 code executing from external flash without any issue, but with AT89C51ED2 its not working, its an experiment with this controller.

    I'm using Keil for development and FLIP for internal flash programming.

    I did googling for a while, its conclude that The Flip will disable external execution(default feature)

    So, i studied data sheet of Controller and Flip user manual, i didn't get any solution to enable external execution through flip or from controller..

    Please suggest me to resolve this issue.ASAP

    Reply
    Thiru N

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