Search found 112 matches

by JezC
Mon May 27, 2019 10:44 am
Forum: DiagROM
Topic: DiagROM for ST
Replies: 118
Views: 13102

Re: DiagROM for ST

Hmm, sounds like what I really want is a build with the same image size as the cart version but as a replacement for the existing TOS ROMs. Then I could program up the 27c512s and replace the existing ROMs to diagnose & fix the faults, then re-fit the original ROMs or even upgrade to 1.04 at some po...
by JezC
Sun May 26, 2019 5:20 pm
Forum: DiagROM
Topic: DiagROM for ST
Replies: 118
Views: 13102

Re: DiagROM for ST

Thanks for the reply. When I downloaded the binaries for the ST they appeared to be just too big to fit in a pair of 27c512 - probably just a few K with a couple of strings and a couple of blocks of constant data values so I was hoping there might be a smaller image that would fit in the pair of 512...
by JezC
Sun May 26, 2019 3:22 pm
Forum: DiagROM
Topic: DiagROM for ST
Replies: 118
Views: 13102

Re: DiagROM for ST

I've a couple of STFMs which don't boot to the desktop & thought that DiagROM might be a good way to try & see what needed doing. I don't currently have any option but to fit the ROMs in place of the current TOS ROMs. The boards have 2 ROMs fitted, TOS 1.02. I have some 27c256 EPROMs (6x 250ns, 2x 1...
by JezC
Wed May 22, 2019 10:45 pm
Forum: MONGREL H4 USER BUILDS
Topic: REV H1 information and interest
Replies: 76
Views: 6258

Re: REV H1 information and interest

Might only be 24 as PhilC == Forgottenmyname...?
by JezC
Tue May 21, 2019 3:25 pm
Forum: MEMBER BLOGS
Topic: exxos blog - random goings on
Replies: 476
Views: 29732

Re: exxos blog - random goings on

I am hoping that there's a board still available when we get our bonus (usually in the July pay packet). :coffee:
No chance of getting all the bits I need before then though. :cry:
by JezC
Mon May 20, 2019 11:06 pm
Forum: HARDWARE DISCUSSIONS
Topic: ube finds work for idle hands, or a new take on a Falcon connector.
Replies: 6
Views: 735

Re: ube finds work for idle hands, or a new take on a Falcon connector.

Fair enough - we don't want to frighten him off too quickly!
by JezC
Mon May 20, 2019 10:55 pm
Forum: HARDWARE DISCUSSIONS
Topic: ube finds work for idle hands, or a new take on a Falcon connector.
Replies: 6
Views: 735

Re: ube finds work for idle hands, or a new take on a Falcon connector.

exxos wrote:
Mon May 20, 2019 10:03 pm
:bravo:

we can soon find you 20 projects to do if you have idle hands ;)
Only 20? :lol: Or are you trying to lull him into a false sense of security?
by JezC
Wed May 15, 2019 8:23 am
Forum: HARDWARE DISCUSSIONS
Topic: MEGA ST upgrading TOS
Replies: 3
Views: 468

Re: MEGA ST upgrading TOS

Hi Phil, Yes that's one option I'm considering, funds being the biggest issue preventing me this month. :cry: If the 2 chip UK TOS 1.04 were in stock then that would be the simplest way to go, but alas there are none ATM. :cry: 68k isn't socketed sadly and I'm not yet confident enough to risk adding...
by JezC
Tue May 14, 2019 11:04 pm
Forum: HARDWARE DISCUSSIONS
Topic: MEGA ST upgrading TOS
Replies: 3
Views: 468

MEGA ST upgrading TOS

I've just opened up my Mega ST4 to see what my options were to upgrade the TOS version (currently 1.02)...mine currently has the two TOS ROMs fitted & the other 4 ROM sites are empty (no sockets present, holes appear to be free of solder). I really want to upgrade it to TOS 1.04 as a minimum (it has...
by JezC
Sun May 12, 2019 9:32 pm
Forum: MONGREL EDITION DEVELOPMENT & INFO
Topic: Flashy Clock - Yet another DEV board
Replies: 128
Views: 8624

Re: Flashy Clock - Yet another DEV board

Nice to see this making such progress...how is the s/w for it coming along? I've programmed other Flash memories using this AMD-type programming pattern (Transputers, SHARC DSPs, ColfdFire v2 & various ARM cores) so if I can help, give me a shout! My GEM programming is very rusty though (not done an...

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