Config utility programs card only once #27
Description
When trying to set VGA modes using the config utility, it works the first time and then not. For instance, I am successfully setting the color to monochrome amber, but after that, if I try to revert back to color, I cannot, no matter how many times I try. If I manipulate the soft switch $C0N1:00 - the color mode is restored. However, if I power off and on again, amber is still on - it is stored perhaps in the firmware.
Additional info: I use 22V10 PLD with the code below. When I access $CN00 - I see FF FF FF FF ... This activated $C800, where I also see FF FF FF FF FF. This is switched off by accessing $CFFF. I need to reprogram the Pico (with preloader) to be able to restore color mode.
PIN [1..11] = [A0..A10];
PIN 13 = !IOSEL;
PIN 14 = !DEVSEL;
PIN 15 = !SEL;
PIN 16 = !RESET;
PIN 17 = !IOSTR;
PIN [18..21] = [BSEL3..0];
PIN 22 = EXTENBL;
PIN 23 = EXTDSBL;
EXTOFF = IOSTR & [A10..0]:'b'11111111111 & [BSEL3..0]:'b'101X;
EXTDSBL = !(EXTENBL # IOSEL);
EXTENBL = !(EXTDSBL # RESET # EXTOFF # [BSEL3..0]:'b'0111);
EXTSEL = EXTENBL & IOSTR;
SEL = DEVSEL # IOSEL # EXTSEL;