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