> >I just wonder if I can sampel fast enough. > > What's the fastest rate that your PIC can sample at? > What's the fastest thing you want to be able to see? > You'd need a lot of pics to pull that off :) > Let's not forget the speed of the p-port. IIRC isn't that limited to ~300k/sec? Then you start looking at putting the data into a RAM quickly, then reading it slowly. I've been tossing that idea around in my head for some time now. A mixed signal capture tool. CPLD for triggering and address generation, fast ADC, high speed RAM, and a PIC to tie it all together and provide the interface. Haven't got around to actually doing it though. :o) -Denny -- http://www.piclist.com#nomail Going offline? Don't AutoReply us! email listserv@mitvma.mit.edu with SET PICList DIGEST in the body