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Original question:

BQ76952: BQ7695202 with I2C and CRC8

BQ76952: EV2400 with BQ7695202 over i2c (through ISO1640).

Steinar Vigdel Kolnes
Prodigy 40 points
Part Number: BQ76952
Other Parts Discussed in Thread: EV2400, BQSTUDIO,

I have now got an EV2400 where i am going to use the Port 2 i2c (pins Vout, Vss, SDA and SCL.
These are going to be used instead of the raspberry pi pico w  (unplugging) for setting up and monitoring the bq7695202
But there is no power at the Vout. How can I enable it from the bqStudio?

Rgs

Steinar

  • 0
    TI__Mastermind 42060 points

    Hello Steinar,

    Why do you require VOUT from the EV2400?

    You could enable the REG1 or REG2 from the BQ76952 and use that as the pull-up of the BQ76952 I2C lines.

    Now, I see you asked how to do this in a separate thread, in which the team that developed the EV2400 has answered. So they will be able to help on that regard.

    Best Regards,

    Luis Hernandez Salomon

  • 0
    Prodigy 40 points

    I think I was quite clear that there are two voltage potentials, that is why i am using the iso 1640/41. And the difference Between side 1 and side 2 (already powered by reg 1) may have a potential, up to 400vrms

    So my question again, how do i enable the Vout?

  • 0 in reply to Luis H. S.
    Prodigy 40 points

    Otherwise, the other tread does not seems to work for my part, because the instructions does not have the same instruction (maybe different sw version).
    But I just need someone from TI to help me out here. Should not take more than 10 min. for the right person. I have purchased a 100 pc. of the BQ7695202 and now also the EV2400. So I really hope someone from TI can work this out. How to enable VOUT2 ??

  • 0 in reply to Steinar Vigdel Kolnes
    TI__Mastermind 42060 points

    Hello Steinar,

    I understand now! So you have side 1 with the REG1 and want to use the other side to connect to the EV2400.

    I searched briefly on E2E and it seems that it is not possible to manually control the GPIO pins of the EV2400. I am not part of that team, so I do not have in-depth experience with how it works. That's why I'd suggest to follow up on the other E2E to see if it is possible to make it happen.

    Now, I am wondering, why not use a GPIO or supply from the rasp-pi board to connect to the other side of the ISO?

    Best Regards,

    Luis Hernandez Salomon