Seeq DQ2816A 24 pins

Discussion in 'Electronics Resources' started by iulian2010, Aug 2, 2010.

  1. iulian2010

    Thread Starter New Member

    Sep 27, 2009
    Hello everyone!

    I hope I posted in the right place.

    I have a problem with old EEPROM DQ2816A, 24 pins. I programmed it all, until Device end 00000007FF, with 00 00 00 00 00 00...... .
    When I try to writing the software saved before , receive error: Programming device - error!
    ADDR=02C0h, DO=8Bh, DI=00h, ST=0000h.
    I think I blocked memory.
    After I programmed memory addresses 00 00 00... all, I can read it but I can't write the original software.

    How can I write the original software again?
    I need your advices.
    Thank you in advance!