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AWR1642: Can I use serial data directly?

user5112907
Intellectual 930 points
Part Number: AWR1642

Hi

 looked at the schematic of awr1642 and found that it actually has only one hardware serial port and then converts it to two ports via usb. Can I directly transfer the radar data to the Raspberry Pi using the hardware serial port. (Raspberry Pi 3 has only one available serial port) How should I perform hardware operations?

As shown above, pins N4 and N are serial port pins. Is this right?

  • 0
    TI__Genius 15005 points
    Hi,

    N4 and N5 are two separate UART ports.

    The RS232_RX (N4) port is used as the command port and works at 115200 baud.
    The RS232_TX (N5) port is used as the data port and works at 921600 baud.

    If you do not have two instances of the UART, you may need to modify the application code to operate at a common baud rate for both ports.
    The port speeds are configured in the C:\ti\mmwave_sdk_02_00_00_04\packages\ti\demo\xwr16xx\mmw\mss\mss_main.c file in the SDK demo application.

    It may be better for you to use the USB-UART conversion that we have in the EVM to provide two separate USB ports. The Raspberry PI3 does support USB and you may be able to use the EVM directly.

    Best Regards,
    Anand
  • 0 in reply to Anand Gadiyar
    Intellectual 930 points
    Do you mean that I can connect EVM and Raspberry Pi directly via the USB cable and there will be two ports available on the Raspberry Pi, just like evm and pc communication?
  • 0 in reply to Anand Gadiyar
    Intellectual 930 points
    Do I need to install the driver on the Raspberry Pi, if using usb to connect Raspberry Pi and EVM
  • 0 in reply to user5112907
    TI__Genius 15005 points
    Hi,

    The cdc_acm driver should just work on most Raspberry Pi distributions. Typically, the serial ports would be called /dev/ttyACM0 and /dev/ttyACM1 - at least this is the behavior on Ubuntu Mate for Rapsberry Pi3.

    Hope this helps.

    Best Regards,
    Anand