Search found 986 matches

by Peter
Sun Jan 05, 2014 7:35 pm
Forum: Hardware
Topic: SDHC adaptors...
Replies: 78
Views: 19744

Re: SDHC adaptors...

Hi all, first of all kudos and many thanks to Adrian and Paul for their great contributions to the QL-SD project. My mission was to transfer design, drivers and knowledge to others, so the device can be built and the project can survive without depending on my person. Until recently, QL-SD still req...
by Peter
Sat Dec 07, 2013 11:15 pm
Forum: Hardware
Topic: Gold Card ROM Shadowing
Replies: 4
Views: 1804

Re: Gold Card ROM Shadowing

The user with the INGOT 3 Gold Card reports that the problem accessing $C000 to $FFFF no longer exists. Please disregard my suspicion of ROM shadowing in this address range.
by Peter
Tue Dec 03, 2013 5:53 pm
Forum: General QL Chat
Topic: QL is 30 Event During 2014
Replies: 36
Views: 11247

Re: QL is 30 Event During 2014

8. It should not be restricted to the QL only, but at least be themed and addressed as an all Sinclair event. Open for everyone, even for alien retro computer systems (ATARI, COMMODORE, AMSTRAD, etc.). Even at a Sinclair-only meeting, the QL would already be an almost negligible minority. If the sc...
by Peter
Mon Dec 02, 2013 3:55 pm
Forum: Hardware
Topic: Gold Card ROM Shadowing
Replies: 4
Views: 1804

Re: Gold Card ROM Shadowing

I should add that the affected Gold Card seems to have an unusual mix of components. The firmware and the PCB (Red, Issue 3) are newer than my Gold Card (Red, Issue 2), but the PLD (INGOT 3) is older than mine (INGOT 6). It almost looks like someone put together the card by components which did not ...
by Peter
Sun Dec 01, 2013 10:59 pm
Forum: Hardware
Topic: Gold Card ROM Shadowing
Replies: 4
Views: 1804

Gold Card ROM Shadowing

Is there any information, at which address (if any) the Gold Card can directly access the ROM area originally located at $C000 to $FFFF? In normal operation, this address range seems to be shadowed in RAM, and therefore not usable to access real hardware (for some Gold Card PLD revisions). I'm aware...
by Peter
Sat Nov 30, 2013 6:48 pm
Forum: Hardware
Topic: Fun things to do with an MC68EC020....
Replies: 153
Views: 34202

Re: Fun things to do with an MC68EC020....

I was searching this thread for a specific info on the Gold Card ROM shadowing (which I didn't find). But here's a little remark on high speed interrupts. Fortunately, some of this work was done before, on the Q40/60. It implemented a fast poll interrupt (20kHz IIRC!) and it showed that the CPU coul...
by Peter
Sun Nov 17, 2013 6:33 pm
Forum: QL Emulation
Topic: UQLX with BDI / QL-SD support
Replies: 6
Views: 3354

UQLX with BDI / QL-SD support

I should have eliminated the last remaining bugs today, so UQLX is now the second QL emulator, after Qemulator, which can handle QL-SD filesystem images. I have no idea when Richard will release it. If someone already needs the feature, please feel free to contact me by personal email. The trick is ...
by Peter
Thu Nov 07, 2013 9:41 pm
Forum: Hardware
Topic: Projects in motion.
Replies: 22
Views: 6442

Re: Projects in motion.

Dave wrote: Video. It would be great if someone who had the knowhow could do a standalone "video chip"...


How are you doing it now? Cloning the QL's ZX8301 + DRAM? Or something derived from Aurora?
by Peter
Tue Oct 29, 2013 10:48 am
Forum: QL Emulation
Topic: Hardware or Software problem
Replies: 4
Views: 2489

Re: Hardware or Software problem

RWAP wrote: I don't have a copy of the Q40/Q60 smsq/e to try under the Q60 driver...


The Q40/Q60 SMSQ/E binary can't work. Qemulator emulates only video/sound, but not the whole machine.
by Peter
Thu Oct 24, 2013 10:59 am
Forum: Hardware
Topic: QL-SD card project
Replies: 43
Views: 14566

Re: QL-SD card project

Thanks. Should have known you made a neat solution. :D Unfortunately I own no Aurora system - would be interesting to see if my SGC becomes stable with QL-SD then.