Search found 689 matches

by Martin A
06 Mar 2024 11:43
Forum: MFX
Topic: MFX with a difference
Replies: 18
Views: 290

Re: MFX with a difference

The bright yellow labels are a bit subtle I guess .... True, but you mad tinkerers stick labels on anything and everything :lol: [has a quick check of the Dev MTX] There's only 6 labled chips: The 3 system ROMs The motherboard PAL replacement, currently the MTX500 GAL is fitted, there's a MTX512 ve...
by Martin A
05 Mar 2024 18:17
Forum: MFX
Topic: MFX with a difference
Replies: 18
Views: 290

Re: MFX with a difference

gunrock wrote: 05 Mar 2024 15:54
Martin A wrote: 05 Mar 2024 12:21 * did you notce the non standard roms on the MTX ?
I did not. That photo was too indistinct and my eyes grow dim... :lol:
The bright yellow labels are a bit subtle I guess ....
by Martin A
05 Mar 2024 12:21
Forum: MFX
Topic: MFX with a difference
Replies: 18
Views: 290

Re: MFX with a difference

You haven't a hope in hell of getting the case back together? Absolutely not. That's where the PS2 keyboard interfacre really comes in to it's own :) That MTX is one Memotech altered in the factory to use eprom instead of mask rom. So I have an alternate set of eproms fitted** that has the keyboard...
by Martin A
05 Mar 2024 12:01
Forum: MFX
Topic: MFX with a difference
Replies: 18
Views: 290

Re: MFX with a difference

It is indeed a larger FPGA, it's a Cyclone 4 device EP4C6E which has 30k of onboard ram. That's compared to 13k ram on the Cyclone 2 EP2C5. The original build MFX used the internal ram for the 80 column board memory, plus buffers for the sprite rendering on the VDP. The external chip was used for th...
by Martin A
04 Mar 2024 14:24
Forum: MFX
Topic: MFX with a difference
Replies: 18
Views: 290

MFX with a difference

See anything different about the MFX board in the photos?
The long view with the system running
The long view with the system running
MTX with a difference.jpg (149.98 KiB) Viewed 154 times
See anything different
See anything different
Spot the difference.jpg (133.64 KiB) Viewed 154 times
by Martin A
25 Feb 2024 15:20
Forum: HARDWARE
Topic: MFX Availability
Replies: 7
Views: 135

Re: MFX Availability

I'll give him a poke on your behalf too :)
by Martin A
25 Feb 2024 14:53
Forum: HARDWARE
Topic: MFX Availability
Replies: 7
Views: 135

Re: MFX Availability

Send Dave an e-mail using the link at the bottom of http://primrosebank.net/computers/mtx/p ... _order.htm

The page seems to suggest there are boards available from the last batch I built for him :)
by Martin A
18 Feb 2024 21:14
Forum: MFX
Topic: MFX GAL Update to support MAGROM
Replies: 4
Views: 122

Re: MFX GAL Update to support MAGROM

I probably should add you also need a rememorizor compatible Magrom, which the early ones weren't without patch wires.. Can you point out how to tell the difference, so that people know how to tell them apart. Mark Dave has all the info in his site (of course) http://primrosebank.net/computers/mtx/...
by Martin A
18 Feb 2024 14:31
Forum: MFX
Topic: MFX GAL Update to support MAGROM
Replies: 4
Views: 122

Re: MFX GAL Update to support MAGROM

I probably should add you also need a rememorizor compatible Magrom, which the early ones weren't without patch wires..
by Martin A
15 Feb 2024 12:29
Forum: GENERAL DISCUSSIONS
Topic: Newfangled Discord "server" set up.
Replies: 8
Views: 263

Re: Newfangled Discord "server" set up.

Singed up here, had a bit of a battle with user names, I think I got it sorted!