CANbardo
Overview
CANbardo is an open hardware Universal Serial Bus (USB) to Controller Area Network (CAN) adapter board. It is designed to be compatible with the open source CANnectivity USB to CAN adapter firmware.
Hardware
The CANbardo board is equipped with an Atmel SAME70N20B microcontroller and features an USB-C connector (high-speed USB 2.0), two DB-9M connectors for CAN FD (up to 8 Mbit/s), a number of status LEDs, and a push button. Schematics and component placement drawings are available in the CANbardo GitHub repository.
Supported Features
The canbardo board supports the hardware features listed below.
- on-chip / on-board
- Feature integrated in the SoC / present on the board.
- 2 / 2
-
Number of instances that are enabled / disabled.
Click on the label to see the first instance of this feature in the board/SoC DTS files. -
vnd,foo -
Compatible string for the Devicetree binding matching the feature.
Click on the link to view the binding documentation.
System Clock
The SAME70N20B is driven by a 12 MHz crystal and configured to provide a system clock of 300 MHz. The two CAN FD controllers have a core clock frequency of 80 MHz.
Programming and Debugging
The canbardo board supports the runners and associated west commands listed below.
| flash | debug |
|---|
Build and flash applications as usual (see Building an Application and Run an Application for more details).
Here is an example for the Blinky application.
# From the root of the zephyr repository
west build -b canbardo samples/basic/blinky
west flash