Search found 692 matches
Re: GOTEK
Ooh, nice job. So you created a custom PCB just for this project, Martin? A proper PCB or a one-off, breadboard? Derailling the Gotek thread a bit more :) , point to point soldered, one off, on matrix board. Pretty much the same way that CFX etc. were prototyped. I soldered some 0.1" strips so...
Re: GOTEK
Needing a bit of a clean, but otherwise complete. The prevoulsy FDX single is now a FDX CPM twin using 2 x Flashfloppy modified Gotek drives. The 5 1/4" bay adaptors were 3d printed as were the red end plates to match the function keys. The 80 column display is courtesy of a custom CPLD design ...
- 05 Apr 2023 21:27
- Forum: HARDWARE
- Topic: Help! (MTX512 Problem)
- Replies: 9
- Views: 10735
Re: Help! (MTX512 Problem)
Something I just remmebered, the colour of the VGA cursor changes with the system activity. Having just looked at Andy's VHDL to refresh my memory. Green is linked to the reset Red is linked to MISO, so will flicker if there's disc activity Blue is linked to the ROMS pin. So if the cursor is purple ...
- 05 Apr 2023 21:12
- Forum: HARDWARE
- Topic: Help! (MTX512 Problem)
- Replies: 9
- Views: 10735
Re: Help! (MTX512 Problem)
Checking Andy's site 2_32 was for a 2 rom MTX500, so 2_00 is likely for a 2 rom MTX with busted ram. The A rom only on the 2 Rom board needed removing Both jumpers "high" would be the correct setting for replacing the roms and ram. The MTX memory test is pretty much the only thing thats do...
Re: GOTEK
Were the original 74LS logic chips duff in some way? They were. The MTX couldn't even boot with the FDC board plugged in until the LS244s were replaced. They're the chips at A1 and B1 on the board, the schematic shows that they buffer and isolate the 4 LS191 counters that store the floppy drive DMA...
Re: GOTEK
SO, the process here turned out to be: Program the Gotek to the latest FlashFloppy 3.39. Set the Gotek to Drive zero, no other jumpers set. Unzip and copy the CF.CFG file below to the root of the USB stick Copy any suatable sized 59k CPM bootable disc image to the USB stick, 320K in my case, file ex...
- 20 Mar 2023 21:22
- Forum: GENERAL DISCUSSIONS
- Topic: The MTX on Youtube
- Replies: 2
- Views: 7475
The MTX on Youtube
This UK Computer museum/retro youtube channel "The Cave" has released a new video that includes a quick test of a couple of donated MTXs https://www.youtube.com/watch?v=vw8z5Hz9-iw The 500 worked, the 512 back screened. What's interesting is there's a quick view of a computer listing cave ...
- 12 Mar 2023 11:34
- Forum: MFX
- Topic: MFX mass-storage add-on - Storage Enhancement Request
- Replies: 13
- Views: 51205
Re: MFX mass-storage add-on - Storage Enhancement Request
There was a typo issue** with mapping the 512k ram in the first draft of the memory decode GAL. That was cured before the MFX went to "manufacturing". The issue resulted in duplication or some of the paged memory and would be apparent as corruption in a ram disc with more than 128k or so o...
- 02 Mar 2023 01:09
- Forum: GENERAL DISCUSSIONS
- Topic: Top 5 MTX games
- Replies: 3
- Views: 7151
Top 5 MTX games
I've been having a chat with Dave about the best things about the MTX. The game selection probably isn't the prime reason for picking up an MTX these days, that would be the hardware, but what would the top 5 games (or top 10 maybe) games be. I had a think of the games I played a lot and made the mo...
- 13 Feb 2023 20:29
- Forum: GENERAL DISCUSSIONS
- Topic: Release date of the Memotech MTX ?
- Replies: 13
- Views: 31805
Re: Release date of the Memotech MTX ?
The advantage of buying later, your's probably didn't break within a few months and end up going off to Memotech (and probably Jim) to repair!