[time-nuts] Ublox LEA-6T CFG-PRT command question

Cash Olsen radio.kd5ssj at gmail.com
Fri Jul 17 13:11:46 UTC 2015


Bob,

My experience is with the LEA-5T but I am confident that the same applies
to your the LEA-6T. My recommendation is to make the changes with the USB
interface and the U-center software (available at no charge, download
UBLOX). If the interface is not provided for it is as simple as a usb cable
two 22ohm resistors and a 3.3V regulator and the appropriate capacitors.
Need further help let me know, I'll provide additional details.

Another way I have done it is to remove the chip which normally talks to
the GPS via the serial path and insert the appropriate serial converter
board temperarily, usually only three connections (Rx, Tx, GND) and again
use the u-center software.

-- 
S. Cash Olsen KD5SSJ
ARRL Technical Specialist

Message: 15
Date: Thu, 16 Jul 2015 23:07:49 +0000 (UTC)
From: Bob Stewart <bob at evoria.net>
To: Discussion of Precise Time and Frequency Measurement
        <time-nuts at febo.com>
Subject: [time-nuts] Ublox LEA-6T CFG-PRT command question
Message-ID:
        <153560478.2529422.1437088069308.JavaMail.yahoo at mail.yahoo.com>
Content-Type: text/plain; charset=UTF-8

I want to change the UART1 port speed on my LEA-6T via message string from
my GPSDO board.  I had assumed that I would have to discover (or know) the
baud rate already set on the LEA-6T in order to change it.  But it appears
that the LEA-6T can receive messages at any baud rate, but you need to send
baud rate change commands at the baud rate you wish to change it to.  Can
anyone verify if this is the case?  I can't find anything in the
documentation I have that addresses this question.  Maybe it's just obvious
to everyone else?
Bob - AE6RV



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