Using it with the 48K Spectrum is just experimental and will be always be a bit marginal as the YUV signals are noisy and the levels are quite close together plus there aren't enough comparators to decode the bright levels anyway. Apart from using 3rd party addons there currently isn't a way to get full support.I confirm that using the YUV signals from the edge connector of my Spectrum 16/48K works albeit with no BRIGHT distinction. I had to slightly tweak the default voltage levels to get rid of some moire or "pixelating effects" but after that the image is now pixel perfect. Nice!
The +2 is quite interesting as it will work with both the digital and analog versions. Although it nominally has a 4 bit digital RGBI output it will also work with the analog interface because it sends slightly different voltages on the RGB outputs for the bright/normal levels but both voltages are still logic 'high' as far as the digital inteface is concerned.I'll try the RGB outputs of my +2 but I'm sure they will work fine.
I think it might be possible to attach a digital RGBtoHDMI to the Spectrum bus in a similar way to the ZX-HD with appropriate driver software and CPLD firmware but it's not something I've looked at yet. I don't have a ZX-HD so do you know if it supports integer scaling or genlocking?I do already have a ZX-HD by bytedelight
Statistics: Posted by IanB — Tue Nov 19, 2024 12:14 am