Bill, The chart is correct if one considers the active state of the signal - but you will not see that with a DMM, only possible with a 'scope. So, yes the chart is incorrect if you consider the normal voltage that you will read with a DMM. These are the serial clock and serial data lines coming from the microprocessor and are not really meaningful unless you setup with a delayed sweep 'scope and know the bit pattern that should be present - not a task for those of us who do not have the microprocessor code being executed available - that is Elecraft proprietary. It further complicates things because the microprocessor 'sleeps' whenever it can to minimize any digital noise.
73, Don W3FPR > -----Original Message----- > > I still think the voltage chart for U4 pin 5 and 7 is incorrect (and the > places they connect to). Will report back later when I make it through > the rest of Part 2 alignment. > > 73, Bill N2BC > _______________________________________________ Elecraft mailing list Post to: [email protected] 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
