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BQ78350-R1: Change battery chemistry via MCU

Vinicius PW
Prodigy 75 points
Part Number: BQ78350-R1
Other Parts Discussed in Thread: BQSTUDIO, EV2400

Hello!

Is possible to change the battery chemistry using a MCU? If so, how can I do that?

Thanks!

  • 0
    TI__Guru* 81034 points

    Hi,

    The steps you need to change the Chemistry with an MCU:

    1) Program the Chemistry on a device using BQStudio. Programming Chemistry changes many hidden parameters in data flash.

    2) From the Data Memory tab in BQStudio, click the 'Hex Dump' button

    3) The hex dump file contains a full dump of the data flash which can be used for loading the data via MCU. (Or you can dum the hex file before and after changing the chemistry and do a diff to see which data flash addresses need to be updated).

    Best regards,

    Matt

  • 0 in reply to Matt Sunna
    Prodigy 75 points

    Thanks, Matt!

    For the step 1, to use BQStudio I need to be accessing an physical device? I don't have the EV2400 or any tool that allow a simple communication with the gauge, so can I programme in a simulated/emulated device?

  • 0 in reply to Vinicius PW
    TI__Guru* 81034 points

    I think you need a physical device for this. Also, I think you will find it is going to be very difficult configuring and optimizing the device settings without BQStudio. this is a complex device with a large number of parameters. BQStudio can be very helpful for debugging different issues that might come up in your application.

    Best regards,

    Matt