> OK then. From what I can see on the scope and the image data the PIC
> returned, it looks like the CCD is discharging before the PIC gets a
chance
> to read it back. I bet this is down to reading two lines of image data,
then
> blasting them down the RS232 link, then grabbing more. Unfortunately the
> entire image will take around 16k bytes, which is a fair bit more than the
> 1536 bytes of RAM the PIC has. It also seems the PIC doesn't have enough
I/O
> lines to address a 16kbyte RAM, well, not with the camera connected
anyway.
>
> Some days you just can't win. :-/

Don't try to get all the data from one scan on the camera.

Instead, do something like this:

for col = 0 to N-1
    command camera to scan
    read pixels from camera, store only those for column 'col' in a buffer.
    send buffer with one column's data to the host
next col

Bob Ammerman
RAm Systems



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