DFRobot CAN BUS Shield V2.0

Overview

The DFRobot CAN BUS shield supports the Microship MCP2515 stand-alone CAN controller and JTA1050 high speed CAN transceiver. The shield has an Arduino Uno R3 compatible hardware interface.

DFRobot_CAN_BUS_V2_0_SHIELD

Hardware

  • MCP2515

    • Stand-Alone CAN 2.0B Controller
    • Up to 1Mb/s baud rate
    • Standard and extended data and remote frames
    • 3x Tx Buffers
    • 2x Rx Buffers
    • 6x 29-bit Filters
    • 2x 29-bit Masks
    • Interrupt output
    • One shot mode
    • High speed SPI interface (10 MHz)
  • TJA1050

    • Fully compatible with the “ISO 11898” standard
    • High speed (up to 1 Mbaud)
  • Connectivity

    • Industrial standard DB9 terminal (CAN)
    • Screw terminals (CAN)
    • Integrated MicroSD socket for data storage (SPI)
    • Arduino Uno R3 compatible (SPI)
Name Function Usage
A0 None  
A1 None  
A2 None  
A3 None  
A4 None  
A5 None  
D0 RX Ext. header only
D1 TX Ext. header only
D2 GPIO_INT_ACTIVE_LOW MCP2515 - INT
D3 None  
D4 SPI-CS MicroSD
D5 None  
D6 None  
D7 None  
D8 None  
D9 None  
D10 SPI-CS MCP2515
D11 SPI-MOSI MCP2515 / MicroSD
D12 SPI-MISO MCP2515 / MicroSD
D13 SPI-CLK MCP2515 / MicroSD
D14 I2C-SDA Ext. header only
D15 I2C_SCL Ext. header only
  • Power Supply

    • 3.3V ~ 5V
  • Components

    • Power switch
    • Power LED
    • RX0BF LED
    • RX1BF LED

For more information about the DFRobot CAN-BUS V2.0 shield:

Programming

Set -DSHIELD=dfrobot_can_bus_v2_0 when you invoke west build or cmake in your Zephyr application. For example:

Using west:

# From the root of the zephyr repository
west build -b nrf52_pca10040 samples/drivers/CAN -- -DSHIELD=dfrobot_can_bus_v2_0 -DCONF_FILE=prj.mcp2515.conf
west flash

Using CMake and ninja:

# From the root of the zephyr repository
# Use cmake to configure a Ninja-based buildsystem:
cmake -B build -GNinja -DBOARD=nrf52_pca10040 -DSHIELD=dfrobot_can_bus_v2_0 -DCONF_FILE=prj.mcp2515.conf samples/drivers/CAN

# Now run ninja on the generated build system:
ninja -C build
ninja -C build flash