BQ78350-R1: Problem in reading afe data

Ansul Tyagi

Intellectual 305 points

Part Number: BQ78350-R1
Other Parts Discussed in Thread: BQ76940, BQ78350, , BQSTUDIO, EV2400, BQ76920

Hi,

I'm using bq78350 with bq76940 for one of my project

I want to fetch afe config data from bq78350-R1 using 0x59 command.

I'm using Bqstudio and ev2400 to communicate to bq78350.

In response to my read command, I'm getting some random data but not the actual data of afe registers

What is the correct procedure to read afe data registers ?

over 5 years ago

0 Matt Sunna over 5 years ago

TI__Guru* 81034 points

Hi Ansul,

The command is working for me - I tested it out quickly on a BQ76920 EVM which is from the same device family. See the image below showing a write of 0x005B to 0x44 followed by a read from 0x44.

Best regards,

Matt

0 Ansul Tyagi over 5 years ago in reply to Matt Sunna

Intellectual 305 points

Hi Matt,

Thanks for the info. this was helpfull.

Can you also show me how to it with 0x59 command?

0 Matt Sunna over 5 years ago in reply to Ansul Tyagi

TI__Guru* 81034 points

Hi Ansul,

The procedure is the same. Write 0x0059 to 0x44 and then read from 0x44.

Best regards,

Matt

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BQ78350-R1: Problem in reading afe data