I'm in the process of designing a USB interface board for my K2 and I have a technical question concerning the "/DOT-PTT" signal in the K2. The signal goes into Port D of the PIC processor. PTT is grounded when the microphone is keyed yet I don't see a pull-up resistor on the signal. I believe Port B of the PIC has internal pull-ups but not Port D. Is there a pull-up on that signal somewhere on the schematic that I'm missing?
Thanks, Kevin N8IQ _______________________________________________ Elecraft mailing list Post to: Elecraft@mailman.qth.net You must be a subscriber to post to the list. Subscriber Info (Addr. Change, sub, unsub etc.): http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/subscribers.htm Elecraft web page: http://www.elecraft.com
