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Compiler/AFE4403EVM: sending and treatment of raw data on arduino by RXTX connexion

Part Number: AFE4403EVM
Other Parts Discussed in Thread: AFE4403

Tool/software: TI C/C++ Compiler

Hello,

As part of a project, I would like to receive via the RXTX ports of the AFE4403EVM kit card the raw sensor data on my arduino card to be able to calculate SPO2 and heart rate values.
I have a few questions:
- is it possible to transmit the acquisition directly via the RXTX ports of the board without going through the GUI but by activating the acquisition directly via Arduino?
- if yes, how to collect them at the arduino and in which format?

Thank you for your answers

  • Hello Arlette,

    Welcome to TI E2E forum.

    Can you please clarify if you would like to bypass the MCU (MSP430) on the EVM and connect the AFE4403 directly to the MCU on the Arduino board?
    If that is the case, then please refer to the EVM schematics at the back of the user guide on the signals to isolate from the MSP430 MCU and connect to Arduino MCU.
  • Hello,

    thank you for your answer. Yes, for that it would be necessary to go through an SPI link, it seems to me?
    Is there no other alternative, because we have some hardware problems, wiring...
    We were thinking of using the UART link (RXTX) but if I understood correctly we will not be able to activate the acquisition without going through the GUI?

    Thank you
  • Hi Arlette,

    To send the acquired data using UART from on-board MCU the firmware of the EVM have to be modified.
    It also requires changing the GUI so that a proper command can be issued to the EVM to transfer the data using UART.
    I am sorry to say that we don't support all these changes.

    Regards,
    Prabin