Very cool! My VGA monitor is now showing Ray's bird picture. Has anyone done any work to allow text to display on a VGA monitor?
Both the 8bpp and the 16bpp code works although both have some garbage below the image. Is that expected?
Looks like the garbage at the bottom of both images was due to a loadp2 problem. I had an ancient version and when I updated the problem went away. However, I had to load at 115200 baud because 921600 no longer worked.
My screen image using the 8bpp variant of this demo had some intermittent shimmer on the right pixel edge and remains cyclic through the picture - Dell 2405FPW monitor in VGA mode. P2ES-EVAL A/V accessory on P0-7 using Chip's code as is with his PLL+clock division settings. I guess that is what other people also have been seeing or do I have a bad setup? P2 feels warm but not hot.
My screen image using the 8bpp variant of this demo had some intermittent shimmer on the right pixel edge and remains cyclic through the picture - Dell 2405FPW monitor in VGA mode. P2ES-EVAL A/V accessory on P0-7 using Chip's code as is with his PLL+clock division settings. I guess that is what other people also have been seeing or do I have a bad setup? P2 feels warm but not hot.
Same monitor shimmer for 16 bit mode as well.
I don't see any shimmer but I'm using Rayman's breakout. My P2 chip is a bit warm as well. Is it dangerous to leave this running for a long period of time?
Doubt it. Shimmer is pretty bad initially on my CRT as well as quite noticeable pixel oscillation on the edges of the five parrots in 16 bit mode, but it seems to settle down a bit on the edges shortly afterwards, though the screen does still shimmer sort of making it look like the shadow mask is vibrating at some frequency. I'm not even cooking this board like Tubular and I were doing a couple of weeks back with a light when we photographed it. This is room temp operation @24C. Perhaps this board is more sensitive at room temp and improves once it "warms up", unlike the others we needed to heat up first to cause the problem...? Or are the default PLL settings in this code known to be non-ideal?
A slightly older version displays lines of text and includes a full font.
Its not a terminal emulation. It just places strings of fixed charscters on the screen.
A slightly older version displays lines of text and includes a full font.
Its not a terminal emulation. It just places strings of fixed charscters on the screen.
Just displaying lines of text is fine. I can make the terminal emulator part myself. I'll have to go searching for the older version. Thanks,
Edit: Found it. I've attached it here in case anyone else is looking for it.
You will see that i change the background and foreground colors per group of lines. I am using 1 bit per pixel to select either foreground or background color. The font is a rehash of hippy’s P1 font that i have used often.
There is a full 256 font in my 1pin tv driver in the obex iirc.
Just changed the P2ES-EVAL VIO jumper position for pins 0-7 where I have this A/V board fitted and this overall screen shimmer effect I have is gone! So one part of it must have been LDO vs switcher related.
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Same monitor shimmer for 16 bit mode as well.
Its not a terminal emulation. It just places strings of fixed charscters on the screen.
Edit: Found it. I've attached it here in case anyone else is looking for it.
There is a full 256 font in my 1pin tv driver in the obex iirc.