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communicating with bq78pl114 EVM on SM Bus

Adinath Jadhav
Prodigy 90 points
Other Parts Discussed in Thread: BQ78PL114, BQWIZARD

Hi,

We have BQ78PL114 board with 8 Li-Ion cells connected to it.

We want to communicate with BQ78PL114 using our electronic board that we are developing on SM-Bus.

We are sending device ID as 0x16 but we are not able to get the acknowledge from BQ78PL114 EVM board for the same.

We confirmed the device address using USBToGPIO adapter interfaced with  PC and using bqWizard we checked the device address as 0x1

Following is the command that we trying to send with PACK voltage as 32 Volts and Individual battery voltage as minimum of 3.7 Volts each:

0X16 0x3c(To read Cell 1 Voltage ).

 

Please suggest us if any special initialization commands to BQ78PL114 EVM need to be sent, to start communication for data monitoring ?

Thanks in Advance.

Thanks and Regards,

Adinath