BQ27531-G1: Bq27531 programs df.fs fail issue

Jerry Chu

Part Number: BQ27531-G1
Other Parts Discussed in Thread: BQ27531EVM, BQEVSW, BQSTUDIO

Hi Expert,

I am facing a issue which can't re-program Bq27531EVM and my steps as below.

1. Use bqEVSW to program .senc default file and the result is successful.

2. Use Bqstudio software to program customer's df.fs file. After this step that I can't re-program, it seems Bq27531 latch.

Although change I2C address 0x16 or 0xaa via bqEVSW software, I read data at "Read I2C Data Block" and show error code=772.

How can I recover the Bq27531EVM? Thanks!

over 7 years ago

0 Onyx Ahiakwo over 7 years ago

TI__Guru* 76230 points

Problems like these occur if you program data flash of a different firmware version on an IC having a different firmware. Replace your IC and make sure to use dffs for the same firmware as is on the chip. if you are not certain what firmware version the dffs file is for, its is better to use the bqfs as that contains both IF and DF.

thanks
Onyx

0 Jerry Chu over 7 years ago in reply to Onyx Ahiakwo

Genius 4915 points

Hi Onyx,
Thanks, so no other solution could save the IC?

0 Onyx Ahiakwo over 7 years ago in reply to Jerry Chu

TI__Guru* 76230 points

If you are unable to program the default firmware on the device, then i am afraid the answer is no, there is no other way to save the IC.

thanks

Onyx

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BQ27531-G1: Bq27531 programs df.fs fail issue