UCAN
Overview
The FYSETC UCAN is an open-source USB to CAN 2.0B adapter board. More information can be found on the UCAN website and in the UCAN wiki.
Hardware
The UCAN board is equipped with a STM32F072CB microcontroller and features an USB-C connector, a terminal block for connecting to the CAN bus, and two user LEDs. Schematics and component placement drawings are available in the UCAN GitHub repository.
Supported Features
The ucan board configuration 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 |
CAN1 |
on-chip |
CAN controller |
The default configuration can be found in the defconfig file: boards/fysetc/ucan/ucan_defconfig.
Other hardware features are not currently supported by the port.
System Clock
The STM32F072CB PLL is driven by an external crystal oscillator (HSE) running at 8 MHz and configured to provide a system clock of 48 MHz.
Programming and Debugging
Build and flash applications as usual (see Building an Application and Run an Application for more details).
If flashing via USB DFU, short pins B0 and 3V3 when applying power to the UCAN board in
order to enter the built-in DFU mode.
Here is an example for the Blinky application.
# From the root of the zephyr repository
west build -b ucan samples/basic/blinky
west flash