BQ40Z80EVM-020: How to reset learned gauging infomation?

Tym Zhu

Part Number: BQ40Z80EVM-020

Hi,

As I'm trying out different batteries using the BQ40Z80EVM eval board, I couldn't figure out how to reset the learned fcc and qmax. The gauge gets confused when I reprogram the chemistry and design capacity.

The reset command doesn't seem to work. I also tried cycling power, resetting lifetime data, the gauging data is still there.

Thanks!

over 4 years ago

0 Wyatt Keller over 4 years ago

TI__Guru** 105590 points

Hello Tym,

You can flash the original .srec file to the gauge then re-upload your chem ID, doing this will reset all the info on the gauge.

Sincerely,

Wyatt Keller

0 Tym Zhu over 4 years ago in reply to Wyatt Keller

Prodigy 60 points

Hi Wyatt,

Thanks for the reply. Reupload the firmware does work.

Although after some poking around, correct if I'm wrong, manually reset the update status under gauging also does the trick?

Tym

Power management

Power management forum

BQ40Z80EVM-020: How to reset learned gauging infomation?