The Sinclair QL Forum

The point is if someone makes an AY hardware available. If it uses 2 MHz, I offer to support it with my software. For myself, AY hardware has low priority at the moment. The Q68 might someday be released with the AY support I showed at the Sinclair meeting two years ago. I won't (and probably can't)...

If someone wants to write those extensions and demands a driver, it's trivial to adjust my program accordingly. Lets first get something working at all instead of discussing drivers and nothing ever available.

The AY register interface is so primitive, that it would in my opinion be exaggerated to define a driver, as long as no hardware is available. The register interface *is* the driver in this case, at least for now ;) And even if some piece someday gets a different base address/spacing it's not really...

Hi Dave, the Q68 uses $1C440 as base address, the following registers are longword-aligned just in case I ever do something for the 68060 again.
But no need to stick to that, I can simply adjust the adresses to whatever you like. The software is tested and should work fine, as long as you use 2 MHz.

But the important thing is that the QSound has apparently a chip frequency of 1.5MHz. The Spectrum has a frequency of 1.7734MHz and the Atari ST uses 2MHz. So the question is, which frequency makes the most sense? There are not many QSound boards or software for it around (is there any software bes...

Thank you Marcel, I really underestimate Wikipedia... this is not the first time recently.
Unlike "ZX Spectrum", the "QL" trademark seems registered for non-computer purposes.

Thank you Dave, but please no further efforts, that would be more than if I do a little measuring.

Out of curiosity... does someone know who is responsible for the ZX Spectrum Next as a product, and how they acquired the right to use "Sinclair" as part of the name?

Dave wrote:I did this in around 2004. It’s a couple of computers ago, but if the file still exists I’ll find it. It also included variations of positions of internal connectors.

Many thanks Dave, that would be cool!

Hi,
is there a drawing of the QL mainboard, with mechanical dimensions, outline, connector locations, etc.?
Thanks
Peter