Search found 445 matches

by troed
Sun Oct 07, 2018 11:42 am
Forum: 3D MODELS
Topic: Atari ST Parts group on Thingiverse
Replies: 17
Views: 783

Re: Atari ST Parts group on Thingiverse

sandord wrote:
Mon Sep 24, 2018 1:02 pm
Ah, that makes sense. I guess this will solve itself over the course of (hopefully) a few days.
Yeah, that was it. Checked today and now had access so I've shared three prints with the group now. One I just did today (Epson SMD-3xx rhombus eject button)
by troed
Fri Oct 05, 2018 9:35 pm
Forum: BENCHMARKS
Topic: STF Remake Benchmarks
Replies: 13
Views: 830

Re: STF Remake Benchmarks

Icky wrote:
Fri Oct 05, 2018 9:23 pm
Re-ran the benchmark with a 32.084988 MHz crystal I received from Exxos this morning and got a 100% on the STF remake


IMG_3140.png
So, time to run {Closure} ... ;)
by troed
Fri Oct 05, 2018 8:38 pm
Forum: ALPHA USER BUILDS
Topic: PaulJ Progress
Replies: 190
Views: 3340

Re: PaulJ Progress

exxos wrote:
Fri Oct 05, 2018 8:32 pm
So not sure who else is building currently.
I'm starting this weekend. That's likely not the same as finishing though ;)
by troed
Mon Oct 01, 2018 10:23 pm
Forum: STF REMAKE PROJECT
Topic: STE DAC circuit
Replies: 5
Views: 205

Re: STE DAC circuit

The STE does not have an MMU, or a GLUE. It has both combined into the GSTMCU. The STE DMA sound is done by the much expanded Shifter (GST Shifter). https://info-coach.fr/atari/hardware/STE-HW.php I'm assuming that's what you meant, just pointing it out for clarity :) For our video mode expansion th...
by troed
Mon Oct 01, 2018 10:02 am
Forum: MEMBER BLOGS
Topic: Boosting STFM: 16MHz bus, 64MHz Shifter
Replies: 133
Views: 13667

Re: Boosting STFM: 16MHz bus, 64MHz Shifter

I guess the gal is out of pins to avoid using the 7474 ? I don't know at the moment if I can latch incoming DTACK to an 8MHz (GLUE clock) DTACK_OUT with the GAL. It's more about what I don't know about GAL programming yet - but it's indeed on my todo to see if I can :) Basically a GAL is really bad...
by troed
Sun Sep 30, 2018 11:52 pm
Forum: MEMBER BLOGS
Topic: Boosting STFM: 16MHz bus, 64MHz Shifter
Replies: 133
Views: 13667

Re: Boosting STFM: 16MHz bus, 64MHz Shifter

So I'm still working the two different tracks here. The original doubleST with a stock Shifter, and a variant using the FPGA-Shifter. For the former, I'm close to ordering a few boards. My own testboard is soon falling apart from all the modifications it's gone through. Screen Shot 2018-10-01 at 00....
by troed
Fri Sep 28, 2018 10:09 pm
Forum: HARDWARE ISSUES
Topic: 1040 STF showing occasional rogue pixels
Replies: 100
Views: 2009

Re: 1040 STF showing occasional rogue pixels

So, there's a good chance this isn't about when the CPU reads RAM, but when the Shifter reads RAM, then.
by troed
Thu Sep 27, 2018 9:23 am
Forum: BENCHMARKS
Topic: STF Remake Benchmarks
Replies: 13
Views: 830

Re: STF Remake Benchmarks

exxos wrote:
Thu Sep 27, 2018 9:21 am
Probably the 99% is due to the slightly slower 32MHz clock.
There really should be benchmarks for 8.01/8.02 and 8.05MHz CPUs ;) It's "easy" to detect which one you have from software by measuring CPU speed vs the fix MFP timer clock.
by troed
Wed Sep 26, 2018 10:32 pm
Forum: ALPHA USER BUILDS
Topic: Icky - Progress
Replies: 642
Views: 11176

Re: Icky - Progress

exxos wrote:
Wed Sep 26, 2018 10:23 pm
AFAIK 2 floppy drives on the same cable has never even been tried
I'm running both an internal floppy as well as an internal HxC off the single cable in my STE. DS0/DS1 (wires 10 and 12) and a single MOTOR ON works just fine.
by troed
Wed Sep 26, 2018 7:56 pm
Forum: ALPHA USER BUILDS
Topic: Icky - Progress
Replies: 642
Views: 11176

Re: Icky - Progress

Yeah I'd put 150 Ohm on each of the RGB lines if it's that bright. my reason for asking if the flash happened on another screen is that very few things in an ST could cause that, while a modern flat screen can do anything it likes when it detects the slightest disturbance in the signal :) So the "fl...