BQ28Z610: The command of read bq28z610 cell 1 voltage &cell 2 voltage by MCU

ke huang

Intellectual 310 points

Part Number: BQ28Z610

Hi Ti experts,

I want read bq28z610 cell 1 voltage &cell 2 voltage by MCU, but no the command about them in BQ28Z610 TRM.

Could you help to provide the command of read bq28z610 cell 1 voltage &cell 2 voltage ?

Thanks

over 5 years ago

0 Batt over 5 years ago

TI__Mastermind 42535 points

Hi Ke,

I'll look into this and have an answer for you within the next week.

0 Batt over 5 years ago in reply to Batt

TI__Mastermind 42535 points

Hi Ke,

It's simple. Just write 0x7100 to register 0x3e. Then read 36 bytes from it. The second and third bytes in it will give you cell voltages 1 and 2 in little endian.

eg. on my gauge writing 0x7100 to 0x3e gives 71 00 EC 0F F7 0F 00 00 00 00 D1 1F 8D 1E 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 F2 24 where, EC 0F and 0F F7 are cell 1 and cell 2 voltages.

0 ke huang over 5 years ago in reply to Batt

Intellectual 310 points

Batt said:
Hi Ke,

It's simple. Just write 0x7100 to register 0x3e. Then read 36 bytes from it. The second and third bytes in it will give you cell voltages 1 and 2 in little endian.

eg. on my gauge writing 0x7100 to 0x3e gives 71 00 EC 0F F7 0F 00 00 00 00 D1 1F 8D 1E 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 F2 24 where, EC 0F and 0F F7 are cell 1 and cell 2 voltages.

0 ke huang over 5 years ago in reply to ke huang

Intellectual 310 points

Hi Batt

Thank you very much!

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BQ28Z610: The command of read bq28z610 cell 1 voltage &cell 2 voltage by MCU