[time-nuts] TruePosition GPS Receiver firmware
tmiller11147 at verizon.net
Mon May 8 14:53:34 EDT 2017
----- Original Message -----
From: "Mark Sims" <holrum at hotmail.com>
To: <time-nuts at febo.com>
Sent: Sunday, May 07, 2017 3:03 AM
Subject: [time-nuts] TruePosition GPS Receiver firmware
> One of my TruePosition GPSDOs fried a chip in the power supply when the
> wall wart that was powering it failed and started putting out 23V. It
> apparently ran for a while at that voltage before violently letting the
> magic smoke out.
> If somebody can read a Spansion S29JL032H90TFI12? chip (some of the last
> digits are hard to read), I can pull it off the board and send it to you.
> Searching the dump should reveal strings that show more of what the
> command set is. I believe the chip is a 48 pin TSOP. I don't have the
> proper adapter for my Data I/O machines.
The two digits before the ? are very important. They describe the memory
format. You may want to put it under your microscope.
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