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BQ78350+BQ76940+MCU programming

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

Hello everybody,


I plan to design a pcb with BMS and some other functions. I want to combine the BQ78350, the BQ76940 and an MCU (Atmel ATmega with Two Wire Interface) on this board for that task. The Atmel-Controller shall comunicate via SMBus with the BQ78350 to get some data about battery status for further functions of the board.

I am not clear about programming the BQ78350 and BQ76940 on my board. Can I do this with the Battery Management Studio or the BQ769X0 Evaluation Software from TI and the EV2400 via the BQ78350-SMBus? 

Do I have to open the SMBus-connection between Atmel-controller and BQ78350 for programming?

While programming the BQ78350 and BQ76940 is is it neccesary to connect the battery pack to my board or do I just need the voltage of the EV2400?


Thanks a lot


Armin