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 following hardware features:
Interface |
Controller |
Driver/Component |
|---|---|---|
NVIC |
on-chip |
nested vector interrupt controller |
PINMUX |
on-chip |
pinmux |
FLASH |
on-chip |
flash memory |
GPIO |
on-chip |
gpio |
USB |
on-chip |
USB |
UART1 |
on-chip |
serial console |
CAN0 |
on-chip |
CAN controller |
CAN1 |
on-chip |
CAN controller |
The default configuration can be found in the defconfig file: boards/others/canbardo/canbardo_defconfig.
Other hardware features are not currently supported by the port.
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
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