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Linux and PGA411-Q1

vincent watier
Prodigy 40 points
Other Parts Discussed in Thread: PGA411-Q1Hi Tom,

Thank you for this suggestion, I consulted the PGA411-Q1_EVM user's guide.
Because I recall that I cannot carry out yet a PCB at this stage.
Do you mean that I need to reprogram the MSP430?
Where can I find the existing code to modify it? github?
Or where can I find the protocol to read recurringly and directly the angle ?
i.e: Which order I need to send by USB to the MSP430 to get the angle back?

Thank you.
  • 0
    TI__Mastermind 23810 points
    Vincent,

    The PGA411 GUI does support a streaming option; however, the sample rate may not be fast enough for you. If you need a faster and more consistent sample rate, then you could use the sample code available in the automotive TI design as a starting point:

    www.ti.com/.../TIDA-00796

    This sample code is for the C2000 F28069M Launchpad. So there would still be a bit of work since you would either need to connect the C2000 Launchpad to the EVM to control the PGA411 (instead of the on-board MSP430), or you would need to write your own MSP430 program, of which we do not have sample code.

    Note that reading the angle from the PGA411 is fairly straightforward. There are more details in the following two app notes:

    Software developer's guide: www.ti.com/.../slaa708
    Step-by-step host initialization guide: www.ti.com/.../slaa688.pdf