The Sinclair QL Forum

badaman wrote: ↑Fri Mar 08, 2024 6:35 am By the way, I have to know more about sQ68ux

It emulates a Q68 instead of the original QL. Which gives it highcolor graphics and the capability to run SMSQ/E. Which I find very cool.

janbredenbeek wrote: ↑Fri Mar 01, 2024 9:55 pm In addition, there is little documentation available about the internals of the built-in drivers, other than the (scarcely commented) source code.

Given this fact, you do an amazing job!

At least Graeme is from Great Britain if he can make it. I'm also trying to convince someone else.
What I like about this anniversary, is that nearly all participants are still active.

martyn_hill wrote: ↑Mon Mar 04, 2024 9:58 pm I guess you meant '...rise and fall times are too low/fast...'

Yes of course, thank you. Original post editet now.

I hate to say it, but GoldCard and SuperGoldcard rise and fall times are too fast for the QL mainboard, causing ringing and crosstalk beyond the TTL thresholds. This works with the slow logic of the original, but could be a problem with modern CPLDs. Also it could be that your timings are simply too...

So now we have Nasta, Wolfgang, Jan, Tobias, Stephan, Oliver, Fabrizio, Urs, Markus, Detlef, Diane, Per (likely), Graeme (possible), myself ... I'm sure I forgot someone. And these are only the well known names... I suspect this will become the most high-carat meeting in two decades

Nasta wrote: ↑Sun Mar 03, 2024 10:45 pm With some luck I will be there!

Wowwwwww! Nasta! That's fantastic!

Derek_Stewart wrote: ↑Fri Mar 01, 2024 7:35 pm Unfortunatley, PS/2 mouse and splitters vary in wiring configuration, see in another thread about this,

Can not be the problem here. Wrong wiring would permanently fail, not just rarely.

Does GC/SGC takes QL's rom address space? I think it does. What do you mean by "take"? It does access the ROM address space 0 ... $FFFF of course. It hasn't got to do with any dram timing. But with the bus timings generated by (S)GC! Which are not identical to the 68008. For example GC ch...

On my MIST, in can isolate the symptom: This core only starts well and runs stable and hourly long, when my MIST was switched off for a longer time (a long night) [...] Do you have coolant spray? You could try to bring the FPGA to a lower temperature and see if it starts even after being warmed up ...