[Elecraft] P3 Firmware Checksum failure - Supplemental

[LA8AW]

I just did the upgrade to my P3 with the SVGA card, without any issues.

PC with a "real" RS-232 port, Windows7 64-bit, P3 Utility 1.12.4.26

First I did the upgrade to 1.20, then to the 1.24 Beta.

No problems - maybe an idea to downgrade the P3 utility?


_____________________

73 de LA8AW - Odd-Egil
_____________________


On Sun, Jan 20, 2013 at 1:56 AM, Bill K9YEQ <k9yeq at live.com> wrote:
> Paul,  Perhaps the downloaded firmware failed.  Download a fresh copy and
> try it.  This could happen with a time out or hyper busy internet
> connection, or, virus.
>
> 73,
> Bill
> K9YEQ
>
>
> -----Original Message-----
> From: elecraft-bounces at mailman.qth.net
> [mailto:elecraft-bounces at mailman.qth.net] On Behalf Of Paul M Dunphy
> Sent: Saturday, January 19, 2013 6:17 PM
> Cc: elecraft at mailman.qth.net
> Subject: Re: [Elecraft] P3 Firmware Checksum failure - Supplemental
>
> On 1/19/2013 7:40 PM, Bill K9YEQ wrote:
>> Looks to me like you do not have a connection via the USB to RS232.
>> Try restarting your PC.  Then find a port with the P3 utility that
>> demonstrates you are connected.  I just did the update with no issues.
>> I did have to find the correct port, as the port assignments can
>> change based on the amount of stuff you have hooked up and the order
>> in which they are reassigned.  I run a W2, K3, P3, Kat500, KX3, etc.
>> Hope that helps you understand the potential issue with the ports and
>> that sometimes they get reassigned.
>>
>> 73,
>> Bill
>> K9YEQ
>>
>>
>
> Hi Bill,
>
>       Thanks for the suggestion.  I don't have a USB to RS232 connection,
> but rather a real DB9 Port.  I'm pretty sure it is the correct port.  I know
> Windows can reassign ports at times, and I think I have eliminated that.
>
>      The reason I believe that to be so is because with the P3 Utility
> program, on the Ports tab, the Test Communications button returns the
> message "P3 Waiting for firmware load. RS-232 speed 38400 bit/sec." when
> clicked.
>
>       Also, when I direct the P3 utility to "Send Checked Items to P3"
> (with MCU checked) under the Firmware tab, a progress bar appears on the
> utility program and works its way across the window, taking about a minute.
> Simultaneously with this, a white progress bar appears on the
> P3 screen.  When they both complete after about a minute, that is when the
> P3 displays:
>
> P3 BOOT LOADER
> CHECKSUM TEST
> FAILED CHECKSUM
> READY FOR DOWNLOAD
>
>     I have repeated this process a number of times.  I have power cycled the
> P3 and K2, and rebooted my PC.  I also disconnected the P3 from the
> K3 so that the RS232 DB-9 cable is connected to the P3 only, and not daisy
> chained further to the K3.  Every combination behaves consistently, giving
> the minute long wait with the P3 utility program and the P3 progress bars
> progressing as I would expect.  Then the P3 display indicates a checksum
> error and says it is "READY FOR DOWNLOAD."
> The P3 Utility program seems to time out and display the following after
> 5-10 seconds:
>
> Error code 0xE2000048: No response to poll while synchronizing to buffer
> boundary MCU verification failed. Reload MCU.
> Click "Close" to close this window
>
>      It's possible it is a communications problem or port mixup, but if it
> is, I can't understand why the P3 unit's progress bar would respond to the
> upload.
>
>      I will pass all of this information along to Elecraft support. I was
> hoping someone else has encountered this, but it seems unique to me.
> Everything worked fine until I tried to upgrade from firmware version 1.20
> to 1.24.
>
> 73, Paul VE1DX
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