Roger Weichert wrote:
> I'm just having a heart attack!!!   I just erased 10 x 27C256 eproms, bur=
nt=20
> an updated software version on them and now they appear dead when I plug=
=20
> them in.
>
> They all verified the same as the master (and still do) and the checksums=
=20
> are all the same. The master eprom works in the circuit, but none of the=
=20
> copies.I've also pulled out some new ones and programmed them with same=20
> result.
>
> I'm hoping I'm missing something obvious, but it doesn;t make sense.
>
> I'd already spent all afternoon trying to reload the library on the Datam=
an=20
> S4 that I use, and it finally worked. After that everything else seemed o=
k=20
> ... until now.
>  =20
Did you make sure the eproms had cooled down after being erased?
David...
--=20

___________________________________________
David Duffy        Audio Visual Devices P/L
Unit 8, 10 Hook St, Capalaba 4157 Australia
Ph: +61 7 38235717      Fax: +61 7 38234717
Our Web Site: www.audiovisualdevices.com.au
___________________________________________

--=20
http://www.piclist.com PIC/SX FAQ & list archive
View/change your membership options at
http://mailman.mit.edu/mailman/listinfo/piclist
.