TVC Ethos Two - 9. Software Upgrade Procedure; 9.1. Lift and Display Board Software Upgrade

Page 50 of 102
TVL 351
ISSUE 15
9. Software Upgrade Procedure
9.1. Lift and Display Board Software Upgrade
To perform this procedure you will need a PC with USB micro lead and / or an SD card reader.
The Lift and Display boards search for binary files named “E2_Lift_Brd_YYYYMMDD_VERS.bin” and
“E2_Display_Brd_YYYYMMDD_VERS.bin” on the SD Card. Ensure only one binary file of each type is stored on
the SD Card’s root directory before following this procedure.
Press: Toolbox → Debug Screens → Processor Status
Check “EA State” says: Good.
Press: Settings → View Changes
Verify parameters. A parameter problem (or absent lift processor SD1 Card) will be reported as an “Unable to fetch
differences.”
Ensure lift is unoccupied and ready to be taken out of service. Take panel off LAR and TTR (hit the STOP push).
Connect a USB lead from the PC to lift card (J16, LHS of board). Seize the USB port, by pressing the SD1 Connect
button in the toolbox.
Press: Toolbox → Connect SD1
The Ethos Two unit should now appear as a USB Flash Drive on the connected PC
Backup the entire SD card to your local machine. Move the factory, user and backup “*.json” files and any
binary files located on the SD card’s root into another directory on the SD Card e.g. “\Old\RevX.XX”.
Copy the new binary files onto the SD card root directory. If a new “factory_CSVX.XX_XX.json” file was
supplied copy and replace the original factory JSON file onto the SD card’s root directory. The SD card’s
root directory must contain a factory “factory_CSVX.XX_XX.json” file and preferably should also contain
user and backup files.
If downgrading software to an earlier build the factory JSON from that earlier build must be copied onto the
SD card’s root directory.
Safely eject the USB device from the laptop, and tap “Disconnect SD1” in the Toolbox menu. Remove the USB
lead.
Firstly program the display board following these steps:
Move the SD card from the lift to the display board.
Move the lower DIP on the display board (SW4-1) into the ON (left) position.
(as shown)
Move the lower DIP on the lift board (SW9-1) into the ON (left) position.
(as shown)
Reset the lift processor by pressing the reset button (top edge of the board
SW8).
Reset the display processor by pressing the reset button (under the SW4
DIP switches).
Wait for the display software flashing process to complete.
Once complete a red screen will be shown with logo.