BQ28z610: Programming Chem Id using I2C

Reuben Duckering

Part Number: BQ28Z610
Other Parts Discussed in Thread: BQSTUDIO, BQ28Z610, EV2400

Hi,

How do I programmed the chem id to this fuel gauge? I'm trying to follow "setting design parameters" and am getting a little confused. The device chemistry register on the flash is a 5 char long register, which is default to LION, but from the looks of things bqstudios supplies a chem id as a number?

The battery I am using is two NCR18650B in series, which chem id is (2012/2017). There is a Chem Id register accessible using the altManufacterAccess() commands but this is only read only.

Any ideas?

over 7 years ago

0 Bryan Kahler over 7 years ago

TI__Mastermind 25955 points

Hi Reuben,

The ChemID will need to be set using bqStudio. Please modify your settings there. Once the gauge is configured, save the settings as a DFFS and flash you device via I2C.

Here is a an example Application report of using the FlashStream File Format to program a gauge via I2C.

www.ti.com/.../slua801.pdf

Sincerely,
Bryan Kahler

0 Reuben Duckering over 7 years ago in reply to Bryan Kahler

Prodigy 50 points

Okay great, thanks for the quick response.

Another quick question, is it possible to create a dffs without having the bq28z610 EVM?

Thanks,

Reuben

0 Bryan Kahler over 7 years ago in reply to Reuben Duckering

TI__Mastermind 25955 points

Hi Reuben,

Yes, please use bqStudio and a EV2300 or EV2400 connected to the communication lines on your board. The file may be created with bqStudio.

Sincerely,
Bryan Kahler

Power management

Power management forum

BQ28z610: Programming Chem Id using I2C