Linux/BQ28Z610: Not able to probe the Drivers for BQ28Z610DRZ. Linux version 4.4.103

Krunal Shah97

Part Number: BQ28Z610
Other Parts Discussed in Thread: BQSTUDIO

Tool/software: Linux

We want to interface BQ28Z610DRZ with our Linux 4.4.103 board. But we are not able to prob the driver of it. But on similar I2C bus we have two more devices which we are able to read and write. Can you please let us know if we need to try any other address to do read and write with this iC? We are using 0x55H (8 bits = 0xAA to write and 0xAB to read).

Thank you in advance for your help and quick response.

Thanks

Krunal Shah

over 6 years ago

0 Onyx Ahiakwo over 6 years ago

TI__Guru* 76230 points

Krunal,
You have the right address, You need to trouble shoot why your driver is unable to communicate with the device. Is the device woken up from shut down mode by the application of a charger voltage. Is the TS pin pulsing once every second to show that the chip is receiving power? Capture the pulse of the TS pin on a scope.

thanks
Onyx

0 Krunal Shah97 over 6 years ago in reply to Onyx Ahiakwo

Prodigy 145 points

Hi Onyx Ahiakwo

please find the attached snap for the TS1 pin, its switching every 246ms. Also attached the snap of the schematic for your reference. One more thing when we use the BQ studio and tries to connect our board with it over I2C , we are able to read the data from it.

Can you please check and let us know your comments for the same.FuelGuage.pptx

Thanks

0 Onyx Ahiakwo over 6 years ago in reply to Krunal Shah97

TI__Guru* 76230 points

Krunal
If you are able to read with bqstudio, then it means that the chip is fully functional and the issue is with your driver. There is little to no support i can provide in that regard. See below app note on gauge communication using your host.

r.search.yahoo.com/.../RS=7sx1tb7xC68Xtka7Xpsd9rf7M.k-

thanks
Onyx

Power management

Power management forum

Linux/BQ28Z610: Not able to probe the Drivers for BQ28Z610DRZ. Linux version 4.4.103