Hello -
I am building a K3 kit and all was going well with the checkout and test when I decided to download the latest version of the firmware. The download failed and now the K3 displays "MCU LD" whenever it is turned on. The K3 utility programs no longer can talk the to the K3. My original PC was using a USB to serial cable and worked fine through all the calibration steps. I used another USB to serial adapter that was compatible with the K3 USB to serial software but it did not work either. I tried yet another PC that has a native serial port, but no luck with that as well. In verbose mode, the utility program says it is sending ";" at various baud rates and I presume it is getting no response. I suppose it is possible that the serial port failed after working for about 10 minutes, but it seems unlikely. All the boards seem to be seated well and I doubt it is a connection problem At this point, the K3 seems to have corrupted firmware, but it can no longer talk to a PC in order to do a new download. Not sure what to try next. Any suggestions welcome 73, Tom W2SC ______________________________________________________________ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html
