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booting ROM from 8051

Discussion in 'General Electronics' started by Ankur, Jul 5, 2004.

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  1. Ankur

    Ankur Guest

    I've got one microcontroller-AT89C51 but i cudn't arrange it's
    programmer .
    I've got one EPROM alongwith it's programmer and I wish to use it to
    store the program i wish 2 use in the 8051.
    I don't know how will the 8051 take boot from ROM . How shud it b
    interfaced 2 the controller? Could ne1 please guide me on this or lead
    me to a web-tutorial.

  2. Rich Grise

    Rich Grise Guest

    You should be able to find a clue somewhere in that pile. :)
  3. dont know

    dont know Guest

    wire the eprom or rom to the AT89C51 using Ports 0 and 2 as
    addr and data bus. You will also need a latch 74HC373.
    and wire the EA pin for external access=GND
    In that case the AT89C51 flash memory will not be used.
  4. IMHO, you'll need a bit more than a web-tutorial. The EPROM is almost
    certainly a parallel data device meaning you'll need to understand the
    hardware interconnections to even connct them together. You'll also
    need an EPROM eraser before you can reprogram it. BTW, LEARN ENGLISH.
  5. Ken Taylor

    Ken Taylor Guest

    Don't be so ignorant - he got the message across, even to you.

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