Search found 261 matches

by go0se
Thu Jan 21, 2021 8:53 pm
Forum: TF536
Topic: My first TF536
Replies: 23
Views: 1213

Re: My first TF536

8 Bit Dreams wrote:
Thu Jan 21, 2021 8:20 pm
Wow! Hopefully You was prepared to see fireworks on power on, since these are four-layer boards. Cutting them may short out GND and VCC inner layers.. :shock:
Where's your sense of adventure?? :lol:
by go0se
Sun Jan 10, 2021 11:18 pm
Forum: CHAT FORUM
Topic: Openflops floppy emulator
Replies: 8
Views: 242

Re: Openflops floppy emulator

It's not a copied gotek. They silkscreened it because they produced it. So it has the same form factor, dimensions and mount holes as a Gotek, the same component layout as a Gotek, can run the same firmware as the Gotek and is based off the schematic from the Gotek, but it's not a copied Gotek? Wha...
by go0se
Sun Jan 10, 2021 9:11 pm
Forum: CHAT FORUM
Topic: Openflops floppy emulator
Replies: 8
Views: 242

Re: Openflops floppy emulator

If anyone knows more about who actually 'owns' the Gotek design then it would be interesting to hear....? At a guess this lot . Well if Gotekemulator did indeed design it, as their 'About Us' page alludes to, and they're clearly still selling it, then creating an Open Source version seems a bit dub...
by go0se
Sun Jan 10, 2021 7:49 pm
Forum: CHAT FORUM
Topic: Openflops floppy emulator
Replies: 8
Views: 242

Re: Openflops floppy emulator

That looks suspiciously like a 're-branded' version of https://github.com/SukkoPera/OpenFlops with no mention in the listing of where it came from, although I do see his name on the board silkscreen. I have no idea what the license situation is in terms of the 'real?' Gotek boards, if such a thing e...
by go0se
Sat Jan 02, 2021 8:00 pm
Forum: NOOB QUESTIONS
Topic: Length between the legs on MC68000 for Atari ST
Replies: 7
Views: 203

Re: Length between the legs on MC68000 for Atari ST

I'm not sure I follow what you're trying to do. If you are using a common DIP64 68000 CPU for some purpose then the pitch will be 2.54mm / 0.1" , that is the socket you require unless you are doing something else?
by go0se
Sat Jan 02, 2021 3:02 pm
Forum: NOOB QUESTIONS
Topic: Length between the legs on MC68000 for Atari ST
Replies: 7
Views: 203

Re: Length between the legs on MC68000 for Atari ST

Here is a 22.86mm 68000 DIP socket footprint in .pretty format for use instead of the standard version supplied in the Kicad footprint libs. All the spacings are standard but it uses smaller oval pads (X 1.5mm , Y 1.3mm , Hole 0.8mm) to allow additional room to route in between without being excessi...
by go0se
Sun Nov 22, 2020 4:33 pm
Forum: TF536
Topic: DiagROM works fine with TF536 in A2000, but no boot with kickstart, not even to early startup control
Replies: 6
Views: 380

Re: DiagROM works fine with TF536 in A2000, but no boot with kickstart, not even to early startup control

mrgo0se_1984 ?!?!? ... wouldn't trust that cowboy to wire a plug let alone build an accelerator, I suspect he doesn't know one end of a soldering iron from the other! :lol: DX93 I will send out another card for you to try early this week. If that doesn't work with your setup then you can return the ...
by go0se
Thu Oct 15, 2020 10:08 am
Forum: TF CD32 Riser
Topic: TF CD32 Riser Revision 2 Design Complete
Replies: 595
Views: 59820

Re: TF CD32 Riser Revision 2 Design Complete

terriblefire wrote:
Thu Oct 15, 2020 8:41 am
currently I have no solder station.
:o ... It's like Beethoven not having a piano! :)
by go0se
Mon Sep 21, 2020 11:42 am
Forum: TF536
Topic: TF536 doesn't _quite_ boot
Replies: 34
Views: 2916

Re: TF536 doesn't _quite_ boot

bnice7 wrote:
Mon Sep 21, 2020 11:26 am
Your RAM IC's are installed upside down!
Ouch!, Yes you might want to correct that, perhaps I should have checked the fundamentals first before nit picking on the soldering details! :)
by go0se
Mon Sep 21, 2020 11:23 am
Forum: TF536
Topic: TF536 doesn't _quite_ boot
Replies: 34
Views: 2916

Re: TF536 doesn't _quite_ boot

Pin 29 on IC8 (mem chip upper RHS in the photo, pin second from bottom left) looks suspect. Touch that up and check again. If that doesn't help then reflow all pins on the four level shifters and the two memory chips. Failing that reflow the CPLD. Depending on your soldering technique the most likel...

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