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1. General
EM-481 uses the "EM481FW1.FUS", "EM481FW2.FUS" or "EM481FW3.FUS" files in the "UPGRADES" folder
on the SD memory card formatted in FAT or FAT32 format to update the firmware (hereinafter software).
Updating one of these files can be done in the firmware update mode.
2. Transmission of files to update EM-481
To transfer the update files it is possible in two ways:
1) record files to SD card on a personal computer or other external device and put the card into the EM-481, then
enter the update mode of the firmware, as shown in Table D.1;
2) if updating via WEB interface is permitted in the parameter settings, tab "Other" (see it. 5.3.3), go to the tab
"Files", select the firmware file and click the button "Upload file". The file will be written to the folder "UPGRADES"
with the name "EM481FW2.FUS". Then click "Program". The firmware update will be done automatically for 3-4
minutes.
2. Update mode of firmware
EM-481 can be set in mode of firmware updating after power supply and restart. The setting in that mode is
made automatically (in case of updating failure) or manually (if the button "R" being pressed during startup). The
procedure of entering in mode of updating is given in Table D.1.
Table D.1 – Entering the mode of firmware updating
No.
Step
1
Initialization
2
Stand-by
3
Notification about
entering in mode
of updating
4
Offer to enter the
mode of updating
5
Protection against
incidental pressing
After manual entering in mode of updating, select the file of updating. The procedure for file selection is given in
Table D.2. To cancel the updating, cut off the power supply of EM-481 or wait until automatic completion of
updating mode.
Table D.2 – Selection of updating file
No.
Step
Finding the
1
available files
Notification about
2
entering in mode of
updating
Offering all files of
3
updating
Repeated offer
4
Protection against
incidental entering
5
in the mode of
updating
At automatic entering into the mode of firmware updating or at manual selection of file, the updating is made
from the file. The procedure of updating is described in Table D.3.
NOVATEK-ELECTRO
Appendix D
(recommended)
Updating of firmware
"R" button
Display
Pressed
Pressed
"Entering
Pressed
upgrade mode"
"To enter
Pressed
upgrade mode
release button"
–
Pressed
"R" button
Display
"Searching for
upgrade files..."
Name and
Released
version of
updating file
Released
Released
Released
39
-
-
Time
0.5 s
1 s
5 s
2 s
–
Time
(depends on
the found files)
5 s
(depends on
–
the found
files)
(depends on
–
time of step 4)
–
–
Remark
To cancel the updating, release
"R" button during these steps
To enter the mode of software
updating, release "R" button
during this step
Holding the button pressed will
cancel the firmware updating
Remark
To select a file, press and
release "R" button at this step
Repeat the step 2 for each file
Repeat the steps 2-3 for 3
times
The file cancelation cause the
escape from the mode of
firmware updating
EM-481
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