David Banks

Thanks for that info Ian, very interesting... I've just been reading my copy of The Spectrum ULA by Chris Smith (do you have this?) and it's got some good diagrams...

Hi Ian, Hope you had a good Christmas. I've done some work just now on the YUV CPLD in a new branch called spectrum: https://github.com/hoglet67/RGBtoHDMI/commits/spectrum There are three changes to...

I've found a fairly efficient way to detect the FS pulse in the CPLD. It re-uses the counter to measure the width of the HS pulse. If the HS pulse...

No, it's actually a bug I just introduced in trying to save some macrocells. So I reverted that bit, and removed temporarily removed the filtering, and this looks better: ...

I think I've found a way to fit everything in. v5.2 now pushed. This does need to be re-checked on the Atom, to make sure the filters are still working...

I've merged everything back to dev now. I'll do a bit more testing on the Atom tomorrow to make sure nothing has regressed. I'm still not able to get a...

Hi Ian, I've updated to the latest code and profile you pushed to the spectrum branch. I'm not sure I'm seeing quite the same issue that you are seeing with...

Here's a couple of similar scope shots.... Border 0  Border 7  The Y cursors are showing: - Y1 = black = 2.422V - Y2 = white = 1.469V...

OK, I've tried another test, using my 6-line test program above. With this, if I change the BORDER from 7 to 0 then I do see some disturbance, even though...

Ian, > However I don't think that would fit in as it would require 2 sets of timing counters, one for the clamp and one for the psync. This could...