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INA226EVM: Possibility to setup/control/acqusition date using more than 5ea INA226EVM and more than 2 SCB

?? ?
Prodigy 10 points
Part Number: INA226EVM


Hello

According to INA226EVM user manual,

the SCB (sensor control board) and GUI only support up to 4 INA226EVM at a time.

If I want to use more than 4ea INA226EVM,

for example) Use 9ea EVM and means need at least 3 SCB.

In this case, is it possible to setup / control all of EVMs and SCB in one PC?

Or only can control upto 4 EVMs on GUI in 1 PC? For addtional EVM control, need addtional PC?

Thanks for your help inadvance.

  • 0
    TI__Mastermind 26865 points

    Hello,

    The limit on 4 EVMs at a time is mostly a GUI limit. One SCB could be connected to all 9 EVMs if you remove some of the pullup resistors so that it doesn't pull up too strong. Then you could communicate with the SCB with a custom script (in Python or similar) using a combination of the "setdevice", "rreg" and "wreg" functions from section 4.2.4.1 of the user's guide to get register data. Then just plot the data yourself. The "collect" function for sending data on the bulk channel wouldn't work, as that is limited to 4 at a time. If you don't need to see all devices plotted simultaneously, then you could still use the GUI, and just change which 4 you are looking at at a time. If you do need to see all 9 plotted at the same time in our GUI, then yes, you would need 3 SCBs and 3 PCs.....

    Regards,

    Mitch