ijor wrote:STFm GLUE considers BLANK as a relevant signal for monochrome as well (even when at board level is not) and applies similar logic as for the color frequencies. Here, according to those schematics, high rez asserts BLANK regardless the horizontal position, as you are saying. Switching to color will not clear BLANK automatically, not until the counter reaches the correct value. So it depends at which point you switched to mono.
Note that SHIFTER blacks the RGB signals at high rez anyway.
Hi, no surprise, the same happens for vertical blank.
As I've started writing the video logic in C, I was wondering if you could give us the high resolution values in comparators for BLANK, horizontal and vertical, on the STF, if you have them?