BQ40Z50-R1: How to re-program 2Bytes after gauge been locked

Jamie Tseng

Part Number: BQ40Z50-R1

Hi Team,

Could you kindly help with the following question?

After Guage is locked, guests want to read and write 2Bytes of data,
1. What space can I use to read and write 2Bytes of data after Gauge is locked?
2. Can FA of ManufacturerInfo (in the red box) be read and written after being locked?

Thanks and best regards,

Jamie

over 5 years ago

0 Andy Liu (BMS) over 5 years ago

TI__Guru 52115 points

Hi Jamie,

As you see in the screenshot, ManufacturerInfo() is read-only if the gauge is sealed.

Andy

0 Jamie Tseng over 5 years ago in reply to Andy Liu (BMS)

TI__Intellectual 2405 points

Hi Andy,

Thanks for your info.

How about question 1?

Is there any room for 2Bytes after the gauge is sealed?

Regards,

Jamie

0 Andy Liu (BMS) over 5 years ago in reply to Jamie Tseng

TI__Guru 52115 points

Hi Jamie,

I don't think so.

Andy

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BQ40Z50-R1: How to re-program 2Bytes after gauge been locked