> > I don't see the scope to host bandwidth as that much of a big deal. Your > > capture bandwidth is what counts. You will have to capture to RAM anyway, > > so uploading the data to the host can wait a few milliseconds. You only > > need to send to the host what you can look at. A decent trace would be > 1024 > > points by 10 bits. Even packed into 16 bits this is only 2Kbytes. In > > reality, I'd rather have a fast 8 bits than slower 10 bits. Either way, > > upload traces doesn't sound like a bottleneck. > > Wrong. 16 bit capture with LPT connection would mean max 1.5 Mbyte/sec or > 786432 samples a second if no overhead is used. > This would give you 3 samples pr period of a 262144 Hz waveform. That's 262 > kHz people, not all that great. You didn't understand what I was trying to say. I see several problems with what you are attempting, but since I'm just plain "wrong" elaborating would be pointless. ***************************************************************** Embed Inc, embedded system specialists in Littleton Massachusetts (978) 742-9014, http://www.embedinc.com -- http://www.piclist.com#nomail Going offline? Don't AutoReply us! email listserv@mitvma.mit.edu with SET PICList DIGEST in the body