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BQ20Z655-R1: BQ20Z655-R1 Not giving pack voltage and also not getting programmed

Part Number: BQ20Z655-R1

Hello,

We have made a custom BQ20Z655-R1 board.

On the bqEVSW - Evaluation software for bq20z655-R1 , the device gets detected and voltage value is also read.

We are using 2p2s battery pack configuration. But the pack voltage (output)remains ZERO which should ideally be 7 point something volts.

The ideal voltage comes only at the instant (1-2 s) when battery pack voltage is calibrated from the EVAL software and then returns to 0V.

Tried programming the device with a .senc file found on a post in forum, but it does not get programmed. Message reads device not in ROM mode.

What should be done so that the pack voltage remains as desired.

Thanks,

Ameya