[Elecraft] MCU LD

[Joe Subich, W4TV]

>From the microKEYER Manual: 

   >  If your radio includes upgradeable firmware,
   > DO NOT perform any upgrade through microKEYER.

That said, with any microHAM interface you must set the radio 
type to "None" (Ports | CAT | Set), check the "Disable router 
queries" box, check both "Forward autoinformation to CAT port" 
boxes, and set the 2nd CAT port to "None" before attempting 
an firmware update.  

After all of that you still need to keep a "real" serial port 
or a generic USB to RS-232 adapter for emergencies.  
 





> -----Original Message-----
> From: elecraft-bounces at mailman.qth.net 
> [mailto:elecraft-bounces at mailman.qth.net] On Behalf Of Eric
> Sent: Tuesday, September 23, 2008 4:12 PM
> To: Elecraft at mailman.qth.net
> Subject: [Elecraft] MCU LD
> 
> 
> 
>    OK,
>    I  tried  to  load  new  firmware  to the K3, not using 
> the USB-serial
>    cable, but thru the micro keyer interface which is 
> normally connected
>    to  the  K3.  At first my PC 'sees' the K3 but during 
> upload something
>    went  wrong  and  now  I have a K3 displaying MCU LD and a 
> blinking TX
>    LED.
>    Anyone has a lead here?
>    vy 73 Eric PA3CEV