I have two KRC2s, and had similar problem with both. Could not get either to report fw rev, and when trying to download I would get a "no response" error. The fw that was in both of them was 1.1D5 . I used HyperTerm to download, and everything worked fine. On one of the units I had to put it into download mode manually with the commands. The other one went right into download mode when I flipped the switch and power cycled.

Now that I have upgraded them, I can get the download utility to get a response to the Get F/W Rev. button, but I still get "KRC2 Failed to reply: " error when trying to download. When I initially press the Download button, I see the commands sent on the screen, and the KRC2 starts flashing the LED. So it seems like it's ready. Maybe there is a timeout loop too short? The message comes up pretty quickly.

These are both connected to a Win98 machine with real serial ports.

Ken  K6MR

Brendan Minish wrote:

Anybody else having difficulty with this firmware upgrade?

the utility installed correctly
With the DL switch set I can query the KRC2
and get the following response
;KR00;KR73;KRV;KRV KRC2 V1.0;

when I try to upload the firmware I get an error after which time I have
to power cycle the krc2 before it will respond to queries again

KRC failed to reply check KRC2 power, DL switch RS232 cable and com port
;KR00;KR73;KRU;
the KRC2 indicator led flashes about 1 per second

I am running windows 2000 on a fairly modern PC and the com port is a real
hardware one (not a USB adapter)
I have tried with the krc2 powered by the K2 and with the KRC2 powered
directly with no K2 connected.

any Ideas?

--
Brendan Minish Ei6IZ





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