[Elecraft] P3 Firmware Checksum failure - Supplemental

[Bill K9YEQ]

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


-----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 2:56 PM
To: elecraft at mailman.qth.net
Subject: [Elecraft] P3 Firmware Checksum failure - Supplemental

      I have the additional information from the P3 Utility program if that
is a further clue:

Elecraft P3 Utility Version 1.12.10.4
OS Version 6.1 Build 7601 Windows 7/Windows Server 2008 R2
P3 MCU version ??.??. RS-232 speed 38400 bit/s.
MCU firmware file checksum reconciliation word is 0x00427142 Attempting to
contact P3 on port COM4 at 38400 bit/s Sending firmware file
C:\Users\DunphyP\AppData\Roaming\Elecraft\P3
Firmware\p3m0120.hex to MCU
Error code 0xE2000048: No response to poll while synchronizing to buffer
boundary MCU verification failed. Reload MCU.
Click "Close" to close this window

     I get this every time I upload the file to the P3.

73, Paul VE1DX
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