Thorlabs PAX1000 Optical Polarimeter System with High Dynamic Range 
Firmware Changelog
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This firmware is a device internal program for PAX1000 Optical Polarimeter System



Installation Instruction
------------------------

In order to update the PAX1000 firmware, the firmware image
(file extension *.dfu) and the Thorlabs Firmware Update Tool are required.
The Firmware Update Tool is a software tool to upload a firmware image to the PAX1000. You
will find it installed to your computer after downloading and installing the
Thorlabs PAX Software package from our web site. There (tab "Firmware")
the up-to-date firmware image can be found as well.
Please download it and remember the location on your computer where you saved
it to.

1. Switch on the PAX1000 and connect it with the supplied USB cable to the
   computer with Thorlabs PAX Software package installed. The computer
   recognizes the connected device and installs the required driver software.

2. Start the Firmware Update Tool from Startmenu > All Programs > Thorlabs > Firmware Update Tool > Thorlabs Firmware Update Tool

3. In the Welcome screen click Next > to continue.

4. Click Browse to select the downloaded *.dfu file, then Select and Next > to
   continue.

5. In the Select Target Device the PAX1000 should be listed. Select the PAX1000
   and click Start.

6. The Firmware Update Tool switches the PAX1000 to DFU upload mode and begins to transfer
   the firmware image. The progress can be observed at the Firmware Update Tool. Do NOT interrupt the process, this may cause your PAX1000 to become inoperable!

7. When the transfer has completed click Finish. The Firmware Update Tool application
   closes, and the PAX1000 reboots with the new firmware.



Changelog
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Sep.15.2020 V1.0.13
		- BUGFIX: Error queue overrun in SCPI library
Nov.20.2019 V1.0.12
		- BUGFIX: Thread Safe I2C communication. Restart I2C bus if initialization failed
Jul.03.2019 V1.0.10
		- BUGFIX: Synchronize gain switch with the next measurement
Mai.24.2019 V1.0.4
        - BUGFIX: Fixed HW gain out of sync problem after SCPI reconnect
Feb.07.2018 V1.0.3
        - ENHANCEMENT: Add wavelength dependent azimuth correction to pax 
        calculations
Jan.27.2017 Release V1.0.2