This document contains the list of changes made in GPS Tracklogger firmware
together with version introduction dates.

The firmware for loggers with serial numbers 3x-xxxxxx (PCBv3):

Version	Date		Changes
-------------------------------
2.07	05/24/2007	last heading sustained if not contained in GPRMC message

2.06	03/20/2007	logging depth instead of altitude in special firmware version

2.05	03/14/2007	$GPGGA message parsing fixed for 1-character number
			of satellites, showing blinking '?' when receiving bad position

2.04	05/18/2005	power down mode fixed, erase track command added
			to configuration menu

2.03	04/08/2005	second serial port support added (for internal GPS receiver),
			4-key keyboard support with configuration menu

2.02	04/14/2004	log memory erase algorithm fixed, Italian language version added

2.01	01/08/2004	Log_It protocol parser fixed

2.00	12/09/2003	new logger model support (PCBv3), new transmission
			protocol Log_It with extensions

The firmware for loggers with serial numbers 1x-xxxxxx (PCBv1) and 2x-xxxxxx (PCBv2):

Version	Date		Changes
-------------------------------
1.8	04/14/2004	log memory erase algorithm fixed

1.7	06/02/2003	new option: skipping from 0 to 255 position points
			between memory writes (0 - log every received point)

1.6	05/14/2003	USB voltage measuring fixed, log record format change,
			added logging of sat. in view, HDOP and 2D/3D,
			removed used memory size graphical view

1.5	03/19/2003	MLR GPS support, completely redesigned track transmission
			protocol - data is sent in blocks with CRC, processor and LCD
			power down when no data received for 30 seconds,
			out of memory detection enabled (no rewriting of data)

1.4	02/18/2003	the first firmware version in English


Adam Dybkowski
adybkows@amwaw.edu.pl
