The last item in "USB to Serial Adapter Troubleshooting" part of K3 Utility Help was provided to me by W4TV, microHAM's US distributor.
The microHAM router gets in the way of K3 Firmware loads unless you change the radio type in the microHAM router to "None". The K3's "boot loader" (the permanent part that is receiving MCU firmware from the K3 Utility) expects what is being sent by the K3 Utility, without "added value" from intermediate software. microHAM's router is undoubtedly doing a reasonable thing if the radio is acting like the K3 described in the K3 programmer's reference, but during firmware load the MCU doesn't respond to the entire K3 command set, and the K3 Utility isn't expecting responses to anything other than what it sent. 73 de Dick, K6KR -----Original Message----- From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] On Behalf Of G3SJJ Sent: Monday, May 05, 2008 4:59 AM Cc: [email protected] Subject: Re: [Elecraft] K3 FW Download Crash Altered the subject to Download! Well, one step forward, two steps back! After several emails from Wayne lst night, and during his Sunday afternoon I should add, so thanks, Wayne last night, I decided to switch off. I had managed to get the download done OK but transmitted audio wasn't correct. It sounded as though the carrier oscillator was too high up the passband slope. Switched on this morning and everything was OK. It sounded really good. It should have left it at that! Oh, no. I decided to do the overnight upgrade and now I am back to square one. I am in exactly the same positions as at first - Flashing Red LED, LCD display not lit but MCU LD wording visible. This time after holding the Power button down for 10 seconds I can start another download but it fails after a while. Sometiems I get up to 10 bars, other times it stops at 3. I then get the error message "MCU programming failed. Verify file source and version. Turn the K3 off and back on and retry" I have tried rebooting computer, switching K3 PSU off, holding Power button down etc numerous times. The only thing that I have done differently on this download is what Stewart has mentioned below. I am using the mHam Keyer as my radio to computer interface. If I could get the K3 to work I could go back to RS232!! Chris G3SJJ Stewart Baker wrote: > No need to be embarrassed Chris, the same thing happened to me. > I found that things got screwed up with the microkeyer router > software which had set the virtual com port at 9.6k instead of > 38.4k. > > I then used a proper RS232 port and lead, and all went well. > > To get in a good state, remove the power from the K3, and then > hold the Power button for 10 secs. The TX light should come on, > and the display show MCU LD. It will then be receptive to another > upload attempt. > > 73 > Stewart G3RXQ > On Sun, 04 May 2008 20:32:48 +0100, G3SJJ wrote: > >> Oh dear, I have done something really wrong!! Had a senior moment and >> >> pressed some keys whilst in process of the latest upgrade. Can anyone >> >> extract me out of my mess?? >> >> - Upload has stopped >> - Display unlit but I can see MCU LD >> - Red TX LED flashing >> - Fans on full >> - Can't power off at the radio >> >> A most embarassed Chris G3SJJ !! >> _______________________________________________ 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 _______________________________________________ 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
