TCM4 / TCM4-BLE MultiFreq card reader
JAN 2021
4.
Firmware
Upgrading TCM4 firmware
TCM4 firmware can be updated via USB interface by switching to
bootloader mode
.
As you know, in this mode, TCM4 is mounted as a USB stick.
To remind you, the bootloader mode is entered by doing the command “goboo
tload
” in
a serial
terminal in application mode. When TCM4 is in bootloader mode, a firmware file
(
TCM4_Firmware_vx.x.x.ctd
) and a status of previous update operation are visible in the device root.
To upgrad
e a new TCM4’s firmware, the following i
nstructions have to be achieved:
•
Navigate to the newly mounted TCM4 (TCM4 BOOT)
•
Delete
TCM4_Firmware_vx.x.x.ctd
file
•
Copy a new firmware file to TCM4 BOOT
•
TCM4 should automatically un-mount and re-mount itself.
The update was successful if the
FwUpdate_Success.stt
status file is present.
All the firmware update status are detailed below:
Status
Description
FwUpdate_NoFwFile.stt
No firmware file in storage zone
FwUpdate_SameFw.stt
Firmware file is the same as the firmware in application zone
FwUpdate_Success.stt
Update operation is successful
FwUpdate_Failed.stt
Update operation has failed
FwUpdate_FwCorrupted.stt
Firmware file is corrupted
