Search found 154 matches

by stephen_usher
Thu Nov 14, 2019 6:37 pm
Forum: General QL Chat
Topic: Beyond Super Gold Card
Replies: 70
Views: 2426

Re: Beyond Super Gold Card

Unfortunately QDOS doesn't have a display abstraction layer, such as the Atari ST has with GEM, so there's no way of sending commands over the restrictive data bus provided by any GPIO interface and asking the Pi to render it natively. That would be pointless. There are mandatory tasks like bitmap ...
by stephen_usher
Thu Nov 14, 2019 2:30 pm
Forum: General QL Chat
Topic: Beyond Super Gold Card
Replies: 70
Views: 2426

Re: Beyond Super Gold Card

By the way, I'm all but sure that HDMI is a good idea! I have a number of monitors with only VGA input. And all my HDMI ones also have VGA! Many brandnew ones still have VGA, very easy to get. Definitely no problem yet, if one takes a little care. For myself, HDMI would be a clear disadvantage ! Ev...
by stephen_usher
Thu Nov 14, 2019 2:24 pm
Forum: General QL Chat
Topic: Beyond Super Gold Card
Replies: 70
Views: 2426

Re: Beyond Super Gold Card

Could you use a pi zero just for hdmi? I think that's how a lot of projects get round the licensing? Not using the bitmapped graphics the QL uses as there's no shared memory. Unfortunately QDOS doesn't have a display abstraction layer, such as the Atari ST has with GEM, so there's no way of sending...
by stephen_usher
Wed Nov 13, 2019 10:01 am
Forum: General QL Chat
Topic: Beyond Super Gold Card
Replies: 70
Views: 2426

Re: Beyond Super Gold Card

Hi, The hardware to interface to a QL or Q68 is relatively easy, the problem area is the software driver. There is not many people that could write driver software to interface to a RPi. I am open to any suggestion to implement the software interface to connect a QL based system to a RPi. Why? You ...
by stephen_usher
Tue Nov 12, 2019 10:47 pm
Forum: General QL Chat
Topic: Beyond Super Gold Card
Replies: 70
Views: 2426

Re: Beyond Super Gold Card

On the Next it will be being used for general USB interfacing (and all the code is being written by one or two people as the hardware interfacing is using the Linux kernel drivers), but that's beside the point. I'm not arguing that your system support everything itself, merely give a useful GPIO com...
by stephen_usher
Tue Nov 12, 2019 2:01 pm
Forum: General QL Chat
Topic: Beyond Super Gold Card
Replies: 70
Views: 2426

Re: Beyond Super Gold Card

This is why I was suggesting using a Pi to do the hard work and then give a standard, simplified interface to the QL side. As for "hard work", the work of such a Raspi implementation has not been done. And why should someone be motivated to do it, while he could just run a QL emulator on ...
by stephen_usher
Mon Nov 11, 2019 8:12 am
Forum: General QL Chat
Topic: Beyond Super Gold Card
Replies: 70
Views: 2426

Re: Beyond Super Gold Card

I am not bothered by the lack of USB interface, even if there was a USB interface who would write the drivers for all the USB devices. I doubt USB device manufacturers would write the device driver for the small QL world. This is why I was suggesting using a Pi to do the hard work and then give a s...
by stephen_usher
Sun Nov 10, 2019 12:54 pm
Forum: General QL Chat
Topic: Beyond Super Gold Card
Replies: 70
Views: 2426

Re: Beyond Super Gold Card

Note the Q68 supports I2c comms. Which is definitely a "Raspberry Pi compatible header" Connect your Raspi to that as an I2C slave, and you can do everything you mention. I don't see the need to change the hardware in any way to do what you propose. Tobias But can a Pi Zero sit as a daugh...
by stephen_usher
Sun Nov 10, 2019 10:19 am
Forum: General QL Chat
Topic: Beyond Super Gold Card
Replies: 70
Views: 2426

Re: Beyond Super Gold Card

So, an embedded ARM core or arduino handling this would not be out of keeping with a true QL, it'd merely be a peripheral interface controller. Another idea: If you find this a nice approach, why not use PS/2 as protocol and do such an ARM controller project yourself? As a little stand-alone interf...
by stephen_usher
Sun Nov 10, 2019 10:06 am
Forum: General QL Chat
Topic: QL with OSSC
Replies: 5
Views: 334

Re: QL with OSSC

Yes, the OSSC is the best scan converter less than £300 and works a treat with the QL. I think I posted about it here last year. Did you tweak any settings on the OSSC? I'm just using the defaults. It's a good idea to tweak the output processing to "Line4x" for teh QL's resolution and in ...