In message <001d01c49c0d$e5b1f710$6700a8c0@dell8100>
          "Bob Ammerman" <rammerman@verizon.net> wrote:

> 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

That's effectively what I'm doing now - grabbing 1024 bytes, blasting them to
the host, then grabbing another 1024 bytes (8 rows). I haven't tried doing
the imaging cycle like that, though. I'll have to try that :)

The other option, of course, is to hook up a 16k RAM (62128?) and a pair of
4040 counters - use one 8-bit port to read/write the data lines, then use
another five I/O lines to run /CS, /RD, /WR, COUNTER_CLK and COUNTER_RST.
Blast the data into the RAM (framebuffer), then come back and read it out
later.

Thanks.
-- 
Phil.                              | Acorn Risc PC600 Mk3, SA202, 64MB, 6GB,
philpem@philpem.me.uk              | ViewFinder, 10BaseT Ethernet, 2-slice,
http://www.philpem.me.uk/          | 48xCD, ARCINv6c IDE, SCSI
... Unable to load REALITY.SYS -- Invalid Parameter: /UTOPIA
_______________________________________________
http://www.piclist.com
View/change your membership options at
http://mailman.mit.edu/mailman/listinfo/piclist