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APPENDIX – UPDATING THE FIRMWARE IN THE LMCT-100-2
The firmware in the LMCT-100-2 can be updated, via the micro-USB jack found within the battery compartment. This provides the ability
to support new DLM devices released after the LMCT-100-2 or updates to the capabilities of the various existing DLM devices.
The firmware version of the LMCT-100-2 is displayed on the start-up screen when the unit is first powered on.
FW=x.xx
Version number
Start-up Screen
HW=x
You will need three things to update the firmware—a PC running Windows, a USB to micro-USB cable, and DfuSE Demo software,
available from STMicroelectronics.
Downloading and Installing DfuSe Software
Download the software from the following web page:
http://www.st.com/en/development-tools/stsw-stm32080.html
. There is no cost to
download the software though you will need to register it.
Be sure to read the section in the User Manual, downloadable from the same web page, on installing the driver. If the driver is not
properly installed, you will not be able to upgrade the firmware but there will be no error message saying that the driver is missing.
Installing Firmware in the LMCT-100-2
Wattstopper support can provide information how to download a copy of the most recent firmware. Once that file is saved on your
computer, take the following steps to install the file.
1. Remover the battery cover from the LMCT-100-2 to expose the micro-USB jack.
Leave the batteries installed
in the LMCT-100-2.
2. Plug the cable into the LMCT-100-2 and the other end into the PC.
3. Start the DfuSe Demo software.
4. Press the POWER button on the PCBA.
5. The display on the LMCT-100-2 will
not
light up.
6. Under the
Available DFU Devices
drop-down, select “STM Device in DFU Mode”. (It may automatically be selected.)
If no options are available from the drop-down, this indicates that the DfuSE driver is not proper installed. See step 2 in the
section on installing the software in the DfuSe User Manual for details.
DfuSe Window with Stm Device Selected
7. Click
Browse
, navigate to the folder where you have saved the firmware file, and select the new firmware file. The software
checks the file and if it is correct, the Status bar at the bottom displays “File loaded correctly”.