Search found 234 matches

by derkom
Sun Jan 26, 2020 3:27 pm
Forum: ELECTRONICS
Topic: Programming Device
Replies: 4
Views: 74

Re: Programming Device

XGecu TL866II Plus is widely used and popular. Only has windows program for it. It can program 27C4096 but plcc footprint needs an adapter to dip and most of them seems to be needed some modification to work. FYI the Windows program works fine with VirtualBox Windows, for those who are running Linu...
by derkom
Sat Jan 25, 2020 4:27 pm
Forum: MONGREL H4 USER BUILDS
Topic: derkom's attempt
Replies: 193
Views: 5308

Re: derkom's attempt

ADDING AN INTERNAL ULTRASATAN I have built this bracket to allow mounting the UltraSatan (standard size) to the top of the Gotek floppy emulator US-Gotek-001.jpg It screws into the Gotek via a M3x20 screw, replacing one of the original Gotek case screws: US-Gotek-002.jpg And then the UltraSatan scr...
by derkom
Thu Jan 23, 2020 12:35 pm
Forum: MONGREL H4 USER BUILDS
Topic: H4 What Has Been Tested
Replies: 13
Views: 179

Re: H4 What Has Been Tested

Internal Mega ACSI connectorUnknownHave not seen any reports of this being tested

I just tested this with an UltraSatan Mega adapter. It works.
by derkom
Tue Jan 21, 2020 9:31 pm
Forum: MONGREL H4 USER BUILDS
Topic: derkom's attempt
Replies: 193
Views: 5308

Re: derkom's attempt

exxos wrote:
Tue Jan 21, 2020 9:28 pm
I do have a HxC, but sadly had it years and only used it once!
Don't fret too much. The OSD works only with the Gotek hardware, not with the HxC hardware. But it needs HxC firmware flashed onto the Gotek hardware (or, apparently FlashFloppy firmware on Gotek hardware).
by derkom
Tue Jan 21, 2020 9:27 pm
Forum: MONGREL H4 USER BUILDS
Topic: derkom's attempt
Replies: 193
Views: 5308

Re: derkom's attempt

I didn't even know gotek could have a OSD! Only if you have the HxC firmware on it. Gotek + HxC has become my favourite floppy emulator for this reason. So much handier than having to look around the side of the computer or god forbid cut extra holes in the case! :twisted: EDIT: Actually apparently...
by derkom
Tue Jan 21, 2020 9:17 pm
Forum: MONGREL H4 USER BUILDS
Topic: derkom's attempt
Replies: 193
Views: 5308

Re: derkom's attempt

HxC-010.jpg
HxC-010.jpg (121.99 KiB) Viewed 47 times

Slightly tidier wiring now. I still need a longer floppy cable though. :D

OSD is nice and solid now.
by derkom
Tue Jan 21, 2020 6:45 pm
Forum: MONGREL H4 USER BUILDS
Topic: derkom's attempt
Replies: 193
Views: 5308

Re: derkom's attempt

Okay, after getting better from feeling blue, I've got back to playing with the Gotek (HxC firmware) OSD, and I have good results: HxC-007.jpeg This will get tidier in time, I swear. My original hookup was just plain hookup wire, and I was getting all kinds of sync problems on the OSD. I replaced th...
by derkom
Mon Jan 20, 2020 9:34 pm
Forum: MONGREL H4 USER BUILDS
Topic: derkom's attempt
Replies: 193
Views: 5308

Re: derkom's attempt

Okay, traced the blue signals around and discovered a bad solder on the B0 input on U5 was the culprit. I'm sure it was dodgy all along, and my Gotek experimentation flexed the board enough to break it. rgb.jpg Let there be RGB! :mrgreen: Too late tonight to get back to the Gotek project. I'll get b...
by derkom
Mon Jan 20, 2020 1:54 pm
Forum: MONGREL H4 USER BUILDS
Topic: derkom's attempt
Replies: 193
Views: 5308

Re: derkom's attempt

exxos wrote:
Mon Jan 20, 2020 1:52 pm
I would check the digital blue lines from shifter via buffer to DAC chip make sure your not losing a bit somewhere.
Yep, that is on this evening's agenda. :D
by derkom
Mon Jan 20, 2020 1:43 pm
Forum: MONGREL H4 USER BUILDS
Topic: derkom's attempt
Replies: 193
Views: 5308

Re: derkom's attempt

A little bit more information on my confusing new problem. Here's the diag cart test pattern:

colours.jpeg
colours.jpeg (46.51 KiB) Viewed 56 times

So it looks like I'm missing part of my blue. Hrm.

I have swapped out the Shifter, and it isn't that. Will keep investigating.

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