CCS/BQ27510-G3: BQ27510-G3

Emma Wang(DELL EMC)

Part Number: BQ27510-G3
Other Parts Discussed in Thread: EV2400,

Tool/software: Code Composer Studio

Hi Onyx:

As you know we had one fail Fuel Guage that caused I2C bus didn't work. This Fuel Gauge was sent back to TI to do FA process. There was a discovery that Instruction flash is blank. And it recovered via loading srec file. So I have some questions based on this.

1, The reason causing I2C bus doesn't work and hang is IF blank. Is my understanding right?

2, How does IF become blank during update? What reason and process?

3,What steps are need to update FG via dffs file?

4,Is deadband change stored in 'Instruction flash' or 'Data flash'?

5, Update bqfs file flow is like below. And I attach data transformation file(it is got from I2C analyzer) using EV2400 and bqfs file. Cloud you tell me when does erasing Instruction flash happen in attached file? I want to the exact time to erase IF.update FG using EV2400 and bqfs file.xlsx

over 6 years ago

0 Emma Wang(DELL EMC) over 6 years ago

Intellectual 350 points

Please help answer these questions!

0 Onyx Ahiakwo over 6 years ago in reply to Emma Wang(DELL EMC)

TI__Guru* 76230 points

Emma
i do not know the exact timing as to when the data erased, neither do i know what the command is to wipe the memory. pls refer to this app note www.ti.com/.../getliterature.tsp

thaanks
Onux

0 Emma Wang(DELL EMC) over 6 years ago in reply to Onyx Ahiakwo

Intellectual 350 points

Thanks for your answer about timing of erasing data!

However, do you know answers of other questions about reason of I2C hang ?

1, Regarding discovery of IF blank, the reason causing I2C bus doesn't work and hang is IF blank. Is my understanding right?

2, How does IF become blank during update? What reason and process?

3,What steps are needed to update FG via dffs file? Is this process same with using bqfs file?

4,In order to solve gost current problem, I increased cc deadband from 17 to 68(The cc deadband of V04 was changed to 68.) according to your advice. Is cc deadband change stored in 'Instruction flash' or 'Data flash'? In fact, I had been told that dffs file can cover cc deadband change during time of solving this issue? Could you confirm?

5,Our factory will buy BQ27510-G3 from TI and update it via V04 dffs file(it is attached). Could I update FG using V04 dffs file because dffs file doesn't include IF section? Is IF part of V04 bqfs file same with default IF part of G3 bought from TI? Would you help confirm it is ok to use V04 dffs file?

V04 dffs and bqfs files.zip

0 Onyx Ahiakwo over 6 years ago in reply to Emma Wang(DELL EMC)

TI__Guru* 76230 points

Hi Emma,
I believe we covered all this during our phone call conversation. Let me know if there are any open items.
thanks
Onyx

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CCS/BQ27510-G3: BQ27510-G3