BQ27Z746: FW update by MCU through I2C in production line

Kailun Liu

Part Number: BQ27Z746
Other Parts Discussed in Thread: BQSTUDIO, EV2400

Tool/software:

Hi team,

My customer has 10k R0 FW device, they want to upgrade it into R1, can they upgrade the FW through MCU in production line?

over 1 year ago

0 Kailun Liu over 1 year ago

TI__Expert 3103 points

Hi Team,

May I have your feedback today? Can FW upgrade from R0 to R1 by MCU I2C communication instead of EV2400+BQstudio

0 Diego over 1 year ago

TI__Mastermind 26275 points

Hi,

Default R1 FW is available at the link below, it can be flashed onto R0 devices. One thing to note is that this is default FW and all the registers that were previously configured will need to be reconfigured, I suggest pulling the customer .gg and uploading it to new FW.

BQ27Z746-DEVICE-FW Support software | TI.com

Regards,

Evan

0 Kailun Liu over 1 year ago in reply to Diego

TI__Expert 3103 points

Hi Evan,

Thanks for your support. Want to double check with you:

In lab(EV2400+personal computer): User can upgrade FW by BQstudio: entor ROM mode and program R1 FW.

In production line(only MCU): Can user directly program R1 .srec file?

0 Diego over 1 year ago in reply to Kailun Liu

TI__Mastermind 26275 points

Hi,

You do not need to enter ROM mode to change FW.

Yes, upload the r1 .srec with parameter configurations.

Regards,

Evan

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Power management forum

BQ27Z746: FW update by MCU through I2C in production line