> Has anyone implemented a PIC (16C57) with 256Kbytes of dynamic RAM???
> I'm looking into this now - refresh - what a pain...!!!
> Anyway, anyone that has done this, what's my best option?

There was an article in the Feb/Mar 1992 issue of Circuit Cellar about the
PICs, describing their use and giving a sample application. The application
was a simple digital storage scope that sampled 4 channels, saving 256K
samples, and then displayed the results on an oscilloscope. Alot of the
source code was given (and explained) in the article, and the full source
is available from their BBS site.  You can access the file by sending email
containing the phrase "GET DIGSCOPE.ZIP" to ftpmail@circellar.com.

To the person that laughed at the idea of DRAM on a PIC, if you only want
a little bit of control I/O, and lots of memory, it is a very cost effective
solution. Yeah, the software is a bit more difficult, but the cost savings
can be very high for medium-high production, since the hardware costs are
kept very low.

There was even an article about someone that built a wind speed/direction
monitoring station with a PIC and bit-banged the NTSC signal to drive a
monitor - now I think *that* was amazing!

-----------------------------------------------------------------------------
Rodney Radford,     Senior Systems Developer,  Image Technology Group
sasrer@unx.sas.com  SAS Institute, Inc, Cary, NC 27513  (919) 677-8000 x7703
-----------------------------------------------------------------------------