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BQ27510-G3: write the flash of BQ27510-G3 with I2C, through host MCU

Baranidaran Panneer Selvam

Prodigy 70 points

Part Number: BQ27510-G3

Hi,

I am using BQ27510-G3 as fuel gauge. I am trying to modify Data-Flash Parameter using I2C communicaton Programming.. For communicating with Data-Flash I am following steps given in Section 4.6.1- Modify WRTEMP of OpConfig B Register in "Technical Reference Manual" .

Using those steps I am able to read Data-Flash registers value. But, I am unable to write/modify them. I am writing New checksum for new value at address (0x60) .. after that when I attempt to read it back after reset.. I am not seeing new checksum or new modified register value..

So, Is there problem in writing Checksum?

Thank you.

over 7 years ago

0 Onyx Ahiakwo over 7 years ago

TI__Guru* 76230 points

Hi Baranidaran
Are you following this app note below:
www.ti.com/.../slua801.pdf

thansk
Onyx

0 Baranidaran Panneer Selvam over 7 years ago in reply to Onyx Ahiakwo

Prodigy 70 points

Hi Onyx,

Thanks for your response.

Yes, I am following the same flow as given in app note but facing the same issue while writing to the data-flash.

thanks,

Baranidaran

0 Onyx Ahiakwo over 7 years ago in reply to Baranidaran Panneer Selvam

TI__Guru* 76230 points

Baranidaran

See attached snippet on how to make change to data flash.

I would recommend you obtain an evm if you do not have one and practice making changes to the data flash before you implementing on your host.

thanks

Onyx