[Elecraft] K3 FW Download Crash

[Stewart Baker]

Thanks, that's good info. It is certainly easier to select the 
radio type to "None" than mess around changing serial cables.

73
Stewart G3RXQ
On Mon, 5 May 2008 08:53:43 -0600, Dick Dievendorff wrote:
> 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: elecraft-bounces at mailman.qth.net
> [mailto:elecraft-bounces at mailman.qth.net] On Behalf Of G3SJJ
> Sent: Monday, May 05, 2008 4:59 AM
> Cc: Elecraft at mailman.qth.net
> 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  !!
>>>
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