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AM2434: FSI connection between two AM2434s

Hideaki Matsumoto
Expert 8770 points
Part Number: AM2434

Tool/software:

Hi,

My customer is now considering two chip solution for multi-axis servo control like below.

Device 1 (D1) : AM2434 for 3-axis  <---- < FSI > ---->  Device 2 (D2) AM2434 for 6-axis

 

Also, considering the secondary boot from D1 to D2 via FSI. Therefore, D1 must be start up earlier than D2.

 

In this case, D1 and D2 can be directly connected via FSI ?  Should capacitor or switch be used to decouple before power up D2 ?

Also, is there any boot timing caution between D1 and D2 ?

Thanks and regards,

Hideaki

  • 0
    TI__Guru**** 169194 points

    Hello Hideaki

    Thank you for the inputs.

    I will have to review the TRM based on your inputs and/or may need to reach out to experts internally.

    Please expect delay in response.

    Regards,

    Sreenivasa

  • 0 in reply to Kallikuppa Sreenivasa
    TI__Mastermind 36520 points

    Matsumoto-san,

    I checked with one of our FSI experts some comments below:

    Q1: We don't think any additional decoupling is necessary, unless there's some risk of the AM2x device getting damaged by a voltage present on the pins before it's powered up. But that would be a general concern, nothing related to FSI.

    Q2: If handshake sequence is implemented for FSI then the power up sequence shouldn't be a concern.

    Please let us know if you have further questions.

    Thank you,

    Paula