Thorlabs PM101 Power Meter Interface with External Readout - Firmware Changelog
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This firmware is a device internal program for PM101 Optical Power Meters.



Installation Instruction
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In order to update the PM101 firmware, the firmware image (file extension *.dfu) 
and the "Thorlabs Firmware Update Tool" are required.
You will find it installed to your computer after downloading and installing the
Thorlabs Power Meter 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. Connect the PM101 with the supplied USB cable to the
   computer with Thorlabs Power Meter 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 > Device
   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 PM101 should be listed. Select the PM101 and
   click Start.

6. The update tool software switches the PM101 to DFU upload mode and begins to transfer
   the firmware image. The progress can be observed at the Update Tool. 
   Do NOT interrupt the process, this may cause your PM101 to become inoperable!

7. When the transfer has completed click Finish. The Update Tool application
   closes, and the PM101 reboots with the new firmware.
   
8. Opitonally: To double check the update you can use the remote SCPI interface with the 
   command "*IDN?" to verify the new version manually.



Changelog
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Oct.24.2019 V1.0.2
            - BUGFIX: Change frontend routing for Photodiode bandwidth limitation
            - BUGFIX: Fixed bug in bitmask calculation for GPIO pins
Aug.02.2019 Release V1.0.0