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RM57Lx Suitable Application

Daniel Mason
Prodigy 40 points

Hi,

I am wanting to use the RM57Lx Hercules Launchpad as a DSP board.

I need to sample a sensor signal at 1.5MSPS and then transfer data to a laptop where it can be displayed in a GUI. 

Also I would like to perform calculations such as FFT on the board. 

Would this MCU be suitable for this? 

Apprieciate any help. 

Kind Regards,

Daniel

  • 0
    TI__Mastermind 49120 points
    Hi Daniel,

    You can certainly use the RM57x MCU for this purpose. This MCU has two ADCs with three conversion groups each. Each conversion takes a minimum of 600ns, so 1.5MSPS can be achieved. The ADCs also support an enhanced channel selection mode that allows you to increase the sampling rate even more.

    These MCUs have a high-performance cached Cortex-R5F ARM CPU which can run up to 330MHz. Also, you can use the ARM CMSIS library for the Cortex-Rx CPUs. You can download this library from: www.ti.com/.../HERCULES-DSPLIB

    The CMSIS-DSP library includes 60+ functions covering vector operations, matrix computing, complex arithmetic, filter functions, control functions, PID controller, Fourier transforms and many other frequently used DSP algorithms.

    Please let us know if you have any questions.

    Regards,
    Sunil
  • 0 in reply to Sunil Oak
    Prodigy 40 points
    Thanks for the quick response Sunil!