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UART communication

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  • SHofmeesterS Offline
    SHofmeesterS Offline
    SHofmeester
    Contributor
    wrote on last edited by
    #1

    Hi,

    We want to connect an arduino to the J10 UART.
    When we try voxl-uart-loopback -d 7, it fails.
    When we use 'voxl-i2c scan 7 400000`, it recognizes the device (besides the UART TX and RX we connected the SDA and SCL as well)

    We also tried it with a GPS, so that we could be sure it wasn't the arduino code, but it had the same result: uart failed and i2c was recognized.

    / # serial-read-teensy -d 7
    INITIALIZING
    Sending 10 bytes:
    0123456789
    Transfer should take ~1736us, sleeping for 6736us (+5000us overhead)
    Reading back data...
    ERROR: voxl_uart_read 0 bytes, expected 10
    closing uart bus
    FAIL
    

    Can you help us with this?

    Thanks in advance!

    Eric KatzfeyE 1 Reply Last reply
    0
    • SHofmeesterS SHofmeester

      Hi,

      We want to connect an arduino to the J10 UART.
      When we try voxl-uart-loopback -d 7, it fails.
      When we use 'voxl-i2c scan 7 400000`, it recognizes the device (besides the UART TX and RX we connected the SDA and SCL as well)

      We also tried it with a GPS, so that we could be sure it wasn't the arduino code, but it had the same result: uart failed and i2c was recognized.

      / # serial-read-teensy -d 7
      INITIALIZING
      Sending 10 bytes:
      0123456789
      Transfer should take ~1736us, sleeping for 6736us (+5000us overhead)
      Reading back data...
      ERROR: voxl_uart_read 0 bytes, expected 10
      closing uart bus
      FAIL
      

      Can you help us with this?

      Thanks in advance!

      Eric KatzfeyE Offline
      Eric KatzfeyE Offline
      Eric Katzfey
      ModalAI Team
      wrote on last edited by
      #2

      @SHofmeester J10 on the VOXL2 is a SPI port. https://docs.modalai.com/voxl2-connectors/#j10---external-spi

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