Thorlabs DC2200 Firmware - Changelog
This firmware is a device internal program for DC2200 instruments. For installation instructions please consult the user’s manual.

Software needed for upload:
Thorlabs Device Firmware Upgrade Wizard

Change log:
Jun-10-2022 	V1.4.2
•	GUI connects now to a device without a connected LED too.
Apr-01-2022 	V1.4.1
•	LED Settings panel shows now correct LED wavelength/color in all cases.
Nov-16-2021 	V1.4.0
•	Added support for Thorlabs LEDs with DS28E07 1-Wire EEPROM family.
Aug-24-2020 	V1.3.0
•	Avoids internal modulation sometime did not start after operating mode change or stops at new frequency value set (LED always on at middle value) – solved in FPGA.
Apr-06-2018 	V1.2.0
•	Avoids firmware hang-up in some special cases.
Nov-14-2017 	V1.1.10
•	Default value of feature "Switch LED on when starting device" set to OFF.
•	Minimum "User Current Limit" increased from 0.0 mA (that makes no sense) to 1.0 mA to avoid that no "LED Current" value is displayed at 0.0 mA limit.
Oct-23-2017	V1.1.9
•	Avoids blocking touch screen at starting device with enabled feature "Switch LED on when starting device" at open interlock.
Oct-19-2017	V1.1.8
•	Remote commands for reading PRM-current, PRM-voltage, LED-temperature, PRM-temperature, VTM-temperature and Console-Heat-Sink temperature set into operation.
Oct-12-2017	V1.0.15
•	Feature "Switch LED on when starting device" added in SYSTEM SETTINGS II panel.
Apr-11-2017	V1.0.14
•	Issues with forward voltage at remote command *RST fixed.
Jul-06-2016	V1.0.13
•	Avoids LED output voltage protection after changing operating mode or increasing current setpoint.
Jul-04-2016	V1.0.12
•	Button MEAS HEAD added to LED SETTINGS panel if TEST HEAD fails (only for non-Thorlabs-LED's without an EEPROM connected) due to too low forward voltage measured for an LED. The function drives different currents up to the "User Current Limit" and measures the resulting voltage and sets the maximum forward voltage respectively. This makes it possible to operate e.g. halogen lamps.
•	Default external fan voltage increased from 8 V to 12 V.
•	External fan voltage can be set from 6 V to 13 V with an resolution of 0.1 V and an accuracy of 0.5 V in SYSTEM SETTINGS II panel.
•	In PWM- and PULSE-mode maximum possible counts increased from 1000 to 100000.
Jul-29-2015	V1.0.1
•	Initial release with full functionality.