Datasheet
UsedCommand
0 x 08 toput
bq 20 zXXbackinto
GasGaugeMode
fromROMmode
Write 0 x 0 F 00 to
SMBuscommand
0 x 00 toput
bq 20 zXXinto
ROMmodefor
SENCfile
creation
LoadtheSENC
file
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Creating the Golden Image File:
software for the applicable device is open.
5. Go to the Pro screen in the EV software.
Figure 17. EV Software Pro Screen
6. Ensure that Write SMB Word frame has the SMBus Command set to 0x00, and the SMBus Word set
to 0x0F00.If they are not, then change them.
7. Click Write. This puts the bq20zxx module into ROM mode to prepare for writing the SENC file created
(as detailed in the section above).
8. Write the SENC file to the Engineering Perfect pack by clicking the browse ( ) button in the Srec
programming frame.
9. In the file manager that pops up, locate and select the previously saved SENC file created (detailed in
the above section).
10. Click Program. The software indicates when it is finished.
11. After it finishes writing, ensure that the SMB Command is 0x08 in the Send SMB Command frame. If
it is not, change it to 0x08.
12. Click Send. This puts the bq20zxx back into Gas Gauge mode. Your factory default SENC file is now
loaded.
I.4 Creating the Golden Image File:
The final step in this process is creating the Golden Image File. This file will include all the static data in
the data flash that is constant from one smart battery module to the next. It also has all the reserved data
and usage data set to default states to ensure that all production packs start out in a new state. This
process is mandatory for new designs and is required for using Multi-Station Testing
(MultiStationTester.exe). Without this process the Impedance Track Algorithm may not function properly.
Follow these steps to create this file:
1. Ensure that the Engineering Perfect battery pack is still connected to the EV2x00 and that the EV
software for the applicable device is open. Go to the Data Flash screen and open the File pulldown
menu. Select Import.
2. In the file manager that pops up, locate and select the Golden GG file created (as detailed in the above
section). Click Write All.
3. The Engineering Perfect battery pack now has all Golden data in it. The next step is to retrieve that
59
SLUU397A– February 2011– Revised May 2011 Creating the Golden Image File Without bqEASY
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