Bob Camp <lists@rtty.us> ha scritto: > Hi > > I believe your second counter (the one that starts on one edge and > stops on the other) will have trouble. It is unlikely you will get > your 14 ns resolution out of it. Are you thinking to sync logic inside the device or other problems? (not considering "defects" like bugs or silicon errata). > > The analog TDC is a fine idea. Cheap, easy, Easy for many, not for me. This is why I like the idea to play with the TAC, I have very little experience with such high speed stuff, it's like going where I've never been, so I'm curious. > and requires a few parts that are not built into the micro > controller. The simple answer is to use a cheap CPLD (possibly sub > $2) for a bunch of this stuff and move on. A possible way to go if I cannot reach meaningful results form the Idea I want to try. Now I dont have pld stuff at hand, I should make a board and buy the parts, or search for devboards, while the micro stuff I have is there, ready to go :) Fabio. ---------------------------------------------------------------- This message was sent using IMP, the Internet Messaging Program.

Fabio Eboli <fabioeb@quipo.it> ha scritto: > Bob Camp <lists@rtty.us> ha scritto: >> The analog TDC is a fine idea. Cheap, easy, > > Easy for many, not for me. This is why > I like the idea to play with the TAC, I have very Here I'm using TAC and TDC for the same meaning... > little experience with such high speed stuff, it's like > going where I've never been, so I'm curious. Fabio. ---------------------------------------------------------------- This message was sent using IMP, the Internet Messaging Program.