All zeroes is really strange - a blank EPROM is all ones, so it’s not that it got exposed to UV light.
Ian > On Jun 15, 2015, at 1:52 PM, Chris Osborn <fozzt...@fozztexx.com> wrote: > > Found a single 2716 EPROM on the Altos and pulled it out and read it in with > my MiniPro TL866CS and it comes back as entirely 00. Since that seemed pretty > odd I grabbed another 2716 out of an old Nintendo board and it reads fine, so > I'm pretty sure the TL866CS can read 2716. > > I have a feeling the Altos isn't going to work without proper data on the > EPROM. :-) I guest the first challenge is getting a copy of what the ROM is > supposed to contain, and the second will be burning it. Anyone happen to have > an image of the ROM for an Altos 8500 board? > > -- > Follow me on twitter: @FozzTexx > Check out my blog: http://insentricity.com > > > --- > Filter service subscribers can train this email as spam or not-spam here: > http://my.email-as.net/spamham/cgi-bin/learn.pl?messageid=7BB3194A13A011E5A0B78C5F93ED0201
