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I am working on the prom code to give Arne the pixels he wants. I can't
quite do what was requested. I am limited in the prom space to 2048 items
and a skipped pixel counts as 1/4 item. The present code will skip 16,
read 2036 (8 covered and 2028 live), skip 16, read 4 overscan. I will fuss
with this so that we get all the live pixels. One thing that would work is
skip 20, read 2036 (4 covered and 2032 live) skip 12, read 4 overscan.
It is possible to go back to the 31 items in a line which would give space
to read more pixels. Since I have change to crystal controlled clocks, I
can no longer adjust the clock speed so the ADC would be pushed a little
for time to complete the conversion. I think there is enough tolerance in
the design to allow this.
In any case, in working on the code I discovered that I had not changed an
array when I changed from 31 time slots in a line to 32. As a result
unknown things have been happening in the prom code. It is a wonder that
it worked at all. While I have been programming 32 items in a line, only
31 of them have been written into the prom.