The Sinclair QL Forum

The Q68 Ethernet driver also uses the Q68's hardware timer. A replacement timer would not have to tick at exactly the same speed, as the loop counters can be adjusted. Sorry, I forgot that. A high resolution timer should not be required in principle, wouldn't an interrupt-driven 50 Hz counter be su...

Happy New Year Peter. Thanks for that. It looks interesting -- even if it is way above my level! Happy new year Norman! That with your level looks like British understatement to me. ;) INT could be gated by a control signal from a flip flop - the flip flop could be reset at startup (cleared by /res...

Hi, in the past, ethernet for the QL has been discussed here quite a lot. Now that Martin's ethernet driver for the Q68 has arrived, see https://qlforum.co.uk/viewtopic.php?f=3&t=3578 , I think it is a good time to provide information and schematic sources here to help others building the equiva...

I agree, silly little screens etc, but I was thinking of simply an app 'terminal' to send files to/from a QL [...] For an original QL, access without emulator would require writing a specific Android program to support Martyn's adapter. (For the Q68, I have already been using the standard TFTP prot...

The QLUB adapter is intended for use from within a QL emulator, so one would need that for Android first. Since JAVA is (beside Kotlin) one of the official programming languages for Android, this would again speak for the JAVA-written SMSQmulator. I can imagine that SMSQmulator would even work alrea...

If Wolfgang has no better idea, and you don't find that approach too clumsy anyway, I could also have quick look into writing such a server at least for Linux and Windoze. Would it be better to define a packet format, or just go byte-by-byte?

The principal design just needs a means of byte-serial communications with the world 'outside' the emulator in a near real-time manner using whatever QDOS driver is available within the emulation environment in question. It is a pity that Java - and thus SMSQmulator - make it difficult/impossible t...

but as you emphasize open source for your project, the dependency on proprietary / closed-source emulators is a bit sad. Yes, and in the same vain we should strive to improve the MiSTer core to the point where we don't have to rely on the closed source Q68 for an SMSQ/E FPGA core in the future :D :...

Hi Martyn, although I don't have enough time for non-68K microcontroller projects like Arduino myself, I find this idea excellent! Especially for the fact that it supports everything from lowest-end QLs up to QXL and Q68! I've read your documents with joy and can only wish this nice project a lot of...

So not the PCB design, the cheap and nasty components fitted. Oh no, I do not mean the design (of course not). I have seen, that the ISA connectors were from different manufacturers. No problem, if they are in good quality, but as you have written, they are not. Perhaps it would be worth a try to g...