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BQ79600EVM: Doubt in BQ79600_UART_Sample_code

Part Number: BQ79600EVM
Other Parts Discussed in Thread: TMS570LS0714

Hi, we are using BQ79600-EVM as a bridge device and BQ79656-EVM as cell monitoring device, and our main controller is TMS70LS0714, and we are using the BQ7900_UART_SAMPLE code as reference. A issue we are facing, in code there is a section where it is printing the cell voltages, but in our case, it is printing only 0.000 not giving the cell voltages (we tried using the GUI it was showing some values 1-2 V). 

Conditions: 

BQ79600 - connected with 5V supply and we gave 3.3V to VIO, TX and RX pin is connected to respective RX and TX of TMS570LS0714.

BQ79656 - connected with 18V supply to VStack, and daisy chained to bq79600.

please give suggestion on it.

Thanks and Regards

Abhaya Raj Mishra