Search found 4 matches

by airamcruz
Thu Nov 29, 2018 8:43 pm
Forum: Hardware
Topic: Atari Test Cart
Replies: 12
Views: 1922

Re: Atari Test Cart

Thanks to all, As I said before, I was wrong about the size of the eproms. I'm waiting for two 27C256 to arrive and I will come back to tell what's what. I've noticed that this cartridge is not the same as the one at http://gossuin.be/index.php/archives/27%20...%20t-atari-st While you must insert th...
by airamcruz
Wed Nov 28, 2018 11:16 pm
Forum: Hardware
Topic: Atari Test Cart
Replies: 12
Views: 1922

Re: Atari Test Cart

Sorry
I got it wrong. the 27C128 eproms are 128 Kb = 16 KB and I need 256 Kb = 32 KB.

Thanks you very much frank.lukas
by airamcruz
Wed Nov 28, 2018 10:33 pm
Forum: Hardware
Topic: Atari Test Cart
Replies: 12
Views: 1922

Re: Atari Test Cart

Thanks for the replies... -> http://www.gossuin.be/index.php/archives/27-test-kit-atari-st You need two 27C256 Eproms ... I bought mine from https://easyeda.com/nplanel/Atari_ST_Cartridge-10329107c6f942e78c3bfcc8d2efa9a8 wich tells you that you need 27C128 roms. Anyway, each dump is 32 kB. There is ...
by airamcruz
Wed Nov 28, 2018 5:21 pm
Forum: Hardware
Topic: Atari Test Cart
Replies: 12
Views: 1922

Atari Test Cart

Hello everybody, I'm new to this forum, this is my first post. I'm trying to make my own Atari Test Cart with this board: https://easyeda.com/nplanel/Atari_ST_Cartridge-10329107c6f942e78c3bfcc8d2efa9a8 and two 27C128 rom chips. I got from the internet two binary files named ST4_4.HGH and ST4_4.LOW a...

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