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Original question:

bq40z50 No communication with bqStudio after firmware update

BQ40Z50EVM-561: Evaluation board stops responding after firmware update

Nosherwan Ahmed
Prodigy 170 points
Part Number: BQ40Z50BQ40Z50EVM-561
Other Parts Discussed in Thread: BQSTUDIO

Hello,

I tried reading the srec from the evaluation module and tried programming the device again using the same srec file that i got. Now the evaluation module does not respond to any command from bqStudio. The error message that i get is "No acknowledge from device" However, if i press the wake button, the evaluation board responds for a short amount of time and then it stops responding again. I have attached the srec file as reference. Can someone help me resolve this issue?

Thanks,

Nosherwan

  • 0
    TI__Mastermind 42535 points
    You may want to power up the gauge from both the cell and the pack side. That way the gauge will be up because it detects a system connection. Then you can modify the settings in the dataflash to keep your device awake.