Search found 375 matches

by troed
Mon Oct 15, 2018 10:16 pm
Forum: STF REMAKE PROJECT
Topic: DMA port "update" ideas..
Replies: 13
Views: 138

Re: DMA port "update" ideas..

Ah, now I get it .. then yes .. I would also like a patch board ..
by troed
Mon Oct 15, 2018 10:00 pm
Forum: STF REMAKE PROJECT
Topic: DMA port "update" ideas..
Replies: 13
Views: 138

Re: DMA port "update" ideas..

I thought Icky got floppy and DMA working without a bodge?
by troed
Sun Oct 14, 2018 8:39 pm
Forum: HARDWARE ISSUES
Topic: Ideas on non-working Mega 4?
Replies: 6
Views: 86

Re: Ideas on non-working Mega 4?

frank.lukas wrote:
Sun Oct 14, 2018 5:50 pm
test cartridge
Since TOS does manage to set 50Hz I quickly checked whether there was any difference booting a test cart instead, but no. This ... confuses me a bit.
by troed
Sun Oct 14, 2018 6:52 pm
Forum: HARDWARE ISSUES
Topic: Ideas on non-working Mega 4?
Replies: 6
Views: 86

Re: Ideas on non-working Mega 4?

Isn't that the pattern used by TOS when trying to size RAM ? I was actually reading through the TOS code before to see if it was :) The below code could possibly do it, although it's not an exact 40 byte pattern. However, at this point screen memory is at $10000 and there's no way I can see for thi...
by troed
Sun Oct 14, 2018 5:03 pm
Forum: HARDWARE ISSUES
Topic: Ideas on non-working Mega 4?
Replies: 6
Views: 86

Ideas on non-working Mega 4?

Acquired a (known) non-working Mega 4 today. Won't have time to open it up and look at for two weeks, but I thought I should post what it looks like when booting for some ideas on the most likely cause :) It's somewhat interesting. non_working_mega4.JPG So, GLUE produces a stable image and the Shift...
by troed
Sat Oct 13, 2018 11:37 pm
Forum: TWEAKS & FIXES
Topic: Hissing and whistling in the STe audio output
Replies: 55
Views: 3134

Re: Hissing and whistling in the STe audio output

The 2600Hz "STE left channel whine" strikes again.
by troed
Sat Oct 13, 2018 6:10 pm
Forum: ALPHA USER BUILDS
Topic: Forgottenmyname - Progress
Replies: 160
Views: 2138

Re: Forgottenmyname - Progress

You'll have 99% unless you have a 32.08 or higher oscillator
by troed
Sat Oct 13, 2018 6:08 pm
Forum: ALPHA USER BUILDS
Topic: Troed - progress
Replies: 22
Views: 510

Re: Troed - progress

Forgottenmyname wrote:
Sat Oct 13, 2018 1:18 pm
yeah it was me, still messing around with that but just takes 1 reset and off it goes for now.
So you need to reset for it to boot? What's the non-booting screen look like?
by troed
Sat Oct 13, 2018 10:30 am
Forum: STF REMAKE PROJECT
Topic: PSU bracket remake ?
Replies: 63
Views: 1381

Re: PSU bracket remake ?

sandord wrote:
Sat Oct 13, 2018 9:55 am
troed wrote:
Fri Oct 12, 2018 7:00 pm
You should really move to using Fusion 360 instead. Takes more time to get into, but everything becomes easily solvable.
Wow, €502 per year subscription... That's a bummer.
Uh no no no. Free for hobbyist use.
by troed
Sat Oct 13, 2018 10:30 am
Forum: ALPHA USER BUILDS
Topic: Troed - progress
Replies: 22
Views: 510

Re: Troed - progress

First boot: Stable white 60Hz screen. Usually an indication TOS isn't executing or being held in RESET.

Not sure when I'll have time to debug, but, I do know I haven't soldered a reset switch to the board, thinking that it was only needed if I want to ... reset. Am I not thinking that through?