BQ76942EVM: Connecting BQ76942 EVM EV2400 to an external BQ76930

Brian Wang0

Expert 5120 points

Part Number: BQ76942EVM
Other Parts Discussed in Thread: BQ76930, BQ76942, EV2400, BQSTUDIO

Hi team,

I am trying to leverage EV2400 on BQ76942 EVM board to debug a BQ76930. Could you kindly suggest how to connect that?

If my understanding is correct, I can remove jumper on J12 and J15 and use pin 3 as SDA and SCL. Is that correct?

Regards,

Brian

over 2 years ago

0 Brian Wang0 over 2 years ago

TI__Expert 5120 points

BTW, I am trying to use I2C.

But seems MSP430 is not connecting to uC_SDA and uC_SCL?

Regards,

Brian

0 Matt Sunna over 2 years ago in reply to Brian Wang0

TI__Guru* 77353 points

Hi Brian,

These connections should be correct. Are you using the software for the BQ76930? Have you closed BQStudio (to allow the BQ76930 software to control the MSP430)? You should also connect 'PGND' from the BQ76942 EVM to the ground of the BQ76930 board.

Best regards,

Matt

Power management

Power management forum

BQ76942EVM: Connecting BQ76942 EVM EV2400 to an external BQ76930