Pi-2CAN FD Getting Started

  • Titan_ted
  • 04/29/2022
  • Comments Off on Pi-2CAN FD Getting Started
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Hardware Overview

Mounting Guide

Software

Install Pi-2CAN FD

Step 1. Download the Pi-2CAN FD software package.

Step 2. Open terminal and run commands below to install

tar zxvf Pi-2CAN_FD.tar.gz
cd Pi-2CAN_FD/m_can
sudo make
sudo make install
cd ../..
dtc -@ -I dts -O dtb -o tcan4X5X.dtbo tcan4550.dts
sudo cp tcan4X5X.dtbo /boot/overlays/

Step 3. Open config.txt file

sudo nano /boot/config.txt

Step 4. Add the following line at the end of the file

dtoverlay=tcan4X5X

Step 3. Press Ctrl + x, press y and press Enter to save the file

Step 4. Reboot Raspberry Pi

sudo reboot

Step 5. Check the kernel log to see if Pi-2CAN FD was initialized successfully. You will also see can0 and can1 appear in the list of ifconfig results

dmesg | grep spi

ifconfig -a

Step 6. Set the can fd protocol, and the dbitrate can be set to 8M speed.

sudo ip link set can0 up type can bitrate 1000000 dbitrate 8000000 restart-ms 1000 berr-reporting on fd on
sudo ip link set can1 up type can bitrate 1000000 dbitrate 8000000 restart-ms 1000 berr-reporting on fd on sudo ifconfig can0 txqueuelen 65536
sudo ifconfig can1 txqueuelen 65536

Step 7. Test the CAN-BUS by connecting two channels by itself :

Channel0 CANL <===> Channel1 CANL , Channel0 CANH <===> Channel1 CANH .

Open two terminal windows and enter the following commands in the Windows to test can fd protocol.

sudo apt-get install can-utils
#send data
cangen can0 -mv
 
#dump data
candump can1