QL mini trump 3 card

[Pepperm]

Hi

I’m working on getting a mini Trump 3 card working in my QL (https://github.com/alvaroalea/QL_MiniTrump3) but, until the PCBs arrive I have the Trump Card 2 board and am only populating the floppy relevant circuitry which is the same as far as I can see to that on the miniTrump 3 board. I have 512K of additional RAM already fitted into my QL (one of those boards that fits under the 68008 cpu). I have the GAL programmed and have found the Trump card ROM archive at Dylwyn Jones’s site but when I boot the V219 ROM I get the word Trump at the QL’s boot screen along with the Toolkit 2 and Minerva info, but, the system hangs at that point with no response to F1 / F2 etc..

Any suggestions as to what may be wrong please?

Mark

[Pepperm]

One thing that I have noticed is that all the Trump Card files are 32K and the mini Trump 3 and Trump 2 boards suggest a 27128 EPROM, which is 16K. So I suspect that the schematics are wrongly labeled, especially as the pinouts on the schematics show A0-A14 (32K or a 27256 EPROM).

[Pepperm]

Cracked it...I think. I placed the Trump card code in the upper half of a 27C512 EEPROM and now the system boots at least. I dont have a floppy connected yet.

The learnings (just in case others are interested are that:-

The Trump 2 clone card and V3 schematics label the ERPOM as a 27128, and it should be at least a 27256.
The Trump 2 clone card PCB connects pin 1 of the EPROM socket to +5V so a 27512 can be used with the code in the upper half of the EPROM, or even EEPROM
I believe that the Trump ROMs, incorporate TK2 so it isn't needed on the QL PCB. So disable it.

[aalea]

One thing that I have noticed is that all the Trump Card files are 32K and the mini Trump 3 and Trump 2 boards suggest a 27128 EPROM, which is 16K. So I suspect that the schematics are wrongly labeled, especially as the pinouts on the schematics show A0-A14 (32K or a 27256 EPROM).

Yes, sorry, this is a cut & paste error that I drag around all my designs... you need 32Kb

[Derek_Stewart]

Hi,

Can the Mini Trump 3 card work with Qsound?

[Pepperm]

No problems and thanks for the design. I wish that I could get the other 2 pals to work to address the RAM, but I guess that I'll settle with your V3 card and one of the RAM cards too.

Anyway, floppy images. How do I go about creating ones for a Gotek drive? Would that be with an emulator? I'm looking ideally to recover data from my very old microdrives you see, at the same time as learning much more about the QL that I had back in the day.

Mark

[aalea]

Qsound and trump is a tricky question.

Previous gal (the one that only work with Minerva) will work with Qsound, but some demos only work with JS.

The last gal, the one that work with JS, conflict with Qsound, you should move the Qsound to other memory position, but I do not know if demos will work on this other memory position.

For move the memory position you need a special backplane or change a pin in the 74LS266 of the Qsound.

And last, you can use only trump card with up to 512kb, the one that have 768kb (6 or 24 memory chips) will not work never with a Qsound.

For the image files for the gotek, it use normal .IMG like the ones you can download from dilwing site, I use sqlux to modify or create new image.

Trump card has "a bug" and is unable to format 720kb images on the gotek you need to do in a pc (but can load and save without problems)