Use an FPGA as a controller :-)


-marc

On Thu, 16 Sep 2004, Philip Pemberton wrote:

> In message <007a01c49bea$8be66040$0300a8c0@main>
>          olin_piclist@embedinc.com (Olin Lathrop) wrote:
>
>> Philip Pemberton wrote:
>>> I haven't hooked a
>>> scope up to see what the levels of the data output are, though.
>>
>> Come back when you've done your homework.
>
> 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. :-/
>
> Later,
> --
> 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
> ... Beam me up, Scotty, but leave the others here.
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