UDOO Bolt CAN over SPI

Discussion in 'UDOO BOLT' started by Daniel Jones, Nov 17, 2020.

  1. Daniel Jones

    Daniel Jones UDOOer

    Nov 17, 2020
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    I am looking to use the UDOO Bolt as a DCS controller with a GUI running in Linux. My system communicates over a CAN BUS network. Up to now, I have been using a raspberry pi 4 with this hat (https://www.waveshare.com/rs485-can-hat.html) to interface with the network through the SocketCAN driver, but the pi does not have enough processing power to handle the program. I am wondering if I can achieve something similar using the Embedded Controller Pins on the Bolt. I notice that there are what appears to be SPI pins (MISO, MOSI, CLK, CS) on the GPIO both for the Arduino and the Controller. How would I communicate with a device through the controller pins? Has anyone had success using SocketCAN with the Bolt?

  2. waltervl

    waltervl UDOOer

    Dec 12, 2015
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    No personal experience with Can Bus
    For running on the CanBus through the SPI pins (1.8V!) of the Bolt CPU the following article as a reference to see the tasks to perform : https://turlucode.com/nvidia-jetson-tk1-spi-to-can-interface-mcp251x-mcp25625/

    If you want to use the build in Arduino Leonardo you can connect a standard CANBUS shield that is compatible with an Arduino Leonardo..
    You will have to make a serial connection between linux /dev/ttyACM0 and Arduino Serial () to pass through the data. with for example firmata.

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