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boards: fysetc: add FYSETC UCAN USB to CAN 2.0B adapter board
Add support for the open-source FYSETC UCAN USB to CAN 2.0B board. Signed-off-by: Henrik Brix Andersen <[email protected]>
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‎boards/fysetc/index.rst‎

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.. _boards-fysetc:
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FYSETC
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######
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.. toctree::
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:maxdepth: 1
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:glob:
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**/*

‎boards/fysetc/ucan/Kconfig.ucan‎

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# Copyright (c) 2024 Henrik Brix Andersen <[email protected]>
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# SPDX-License-Identifier: Apache-2.0
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config BOARD_UCAN
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select SOC_STM32F072XB

‎boards/fysetc/ucan/board.cmake‎

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# Copyright (c) 2024 Henrik Brix Andersen <[email protected]>
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# SPDX-License-Identifier: Apache-2.0
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board_runner_args(dfu-util "--pid=0483:df11" "--alt=0" "--dfuse")
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board_runner_args(jlink "--device=STM32F072CB")
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include(${ZEPHYR_BASE}/boards/common/dfu-util.board.cmake)
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include(${ZEPHYR_BASE}/boards/common/jlink.board.cmake)

‎boards/fysetc/ucan/board.yml‎

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board:
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name: ucan
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full_name: UCAN
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vendor: fysetc
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socs:
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- name: stm32f072xb

‎boards/fysetc/ucan/doc/index.rst‎

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.. zephyr:board:: ucan
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Overview
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********
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The FYSETC UCAN is an open-source USB to CAN 2.0B adapter board. More information can be found on
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the `UCAN website`_ and in the `UCAN wiki`_.
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Hardware
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********
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The UCAN board is equipped with a STM32F072CB microcontroller and features an USB-C connector, a
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terminal block for connecting to the CAN bus, and two user LEDs. Schematics and component placement
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drawings are available in the `UCAN GitHub repository`_.
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Supported Features
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==================
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The ``ucan`` board configuration supports the following hardware features:
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+-----------+------------+-------------------------------------+
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| Interface | Controller | Driver/Component |
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+===========+============+=====================================+
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| NVIC | on-chip | nested vector interrupt controller |
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+-----------+------------+-------------------------------------+
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| PINMUX | on-chip | pinmux |
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+-----------+------------+-------------------------------------+
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| FLASH | on-chip | flash memory |
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+-----------+------------+-------------------------------------+
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| GPIO | on-chip | gpio |
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+-----------+------------+-------------------------------------+
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| USB | on-chip | USB |
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+-----------+------------+-------------------------------------+
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| CAN1 | on-chip | CAN controller |
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+-----------+------------+-------------------------------------+
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The default configuration can be found in the defconfig file:
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:zephyr_file:`boards/fysetc/ucan/ucan_defconfig`.
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Other hardware features are not currently supported by the port.
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System Clock
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============
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The STM32F072CB PLL is driven by an external crystal oscillator (HSE) running at 8 MHz and
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configured to provide a system clock of 48 MHz.
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Programming and Debugging
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*************************
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Build and flash applications as usual (see :ref:`build_an_application` and
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:ref:`application_run` for more details).
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If flashing via USB DFU, short pins ``B0`` and ``3V3`` when applying power to the UCAN board in
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order to enter the built-in DFU mode.
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Here is an example for the :zephyr:code-sample:`blinky` application.
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.. zephyr-app-commands::
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:zephyr-app: samples/basic/blinky
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:board: ucan
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:goals: flash
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.. _UCAN website:
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https://www.fysetc.com/products/fysetc-ucan-board
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.. _UCAN wiki:
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https://wiki.fysetc.com/UCAN/
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.. _UCAN GitHub repository:
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https://github.com/FYSETC/UCAN/

‎boards/fysetc/ucan/doc/ucan.webp‎

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‎boards/fysetc/ucan/ucan.dts‎

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/*
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* Copyright (c) 2024 Henrik Brix Andersen <[email protected]>
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*
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* SPDX-License-Identifier: Apache-2.0
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*/
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/dts-v1/;
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#include <st/f0/stm32f072Xb.dtsi>
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#include <st/f0/stm32f072c(8-b)tx-pinctrl.dtsi>
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/ {
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model = "FYSETC UCAN board";
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compatible = "fysetc,ucan";
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chosen {
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zephyr,sram = &sram0;
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zephyr,flash = &flash0;
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zephyr,code-partition = &slot0_partition;
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zephyr,canbus = &can1;
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};
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aliases {
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led0 = &led_rx;
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led1 = &led_tx;
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};
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leds {
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compatible = "gpio-leds";
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led_rx: led_rx {
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gpios = <&gpioa 0 GPIO_ACTIVE_HIGH>;
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label = "LED RX";
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};
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led_tx: led_tx {
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gpios = <&gpioa 1 GPIO_ACTIVE_HIGH>;
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label = "LED TX";
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};
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};
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transceiver0: can-phy0 {
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compatible = "can-transceiver-gpio";
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enable-gpios = <&gpioc 13 GPIO_ACTIVE_LOW>;
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max-bitrate = <1000000>;
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#phy-cells = <0>;
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};
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};
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&clk_hse {
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status = "okay";
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clock-frequency = <DT_FREQ_M(8)>;
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};
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&pll {
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prediv = <1>;
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mul = <6>;
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clocks = <&clk_hse>;
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status = "okay";
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};
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&rcc {
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clocks = <&pll>;
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clock-frequency = <DT_FREQ_M(48)>;
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ahb-prescaler = <1>;
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apb1-prescaler = <1>;
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};
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zephyr_udc0: &usb {
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pinctrl-0 = <&usb_dm_pa11 &usb_dp_pa12>;
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pinctrl-names = "default";
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status = "okay";
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};
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&can1 {
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pinctrl-0 = <&can_rx_pb8 &can_tx_pb9>;
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pinctrl-names = "default";
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phys = <&transceiver0>;
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status = "okay";
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};
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&flash0 {
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partitions {
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compatible = "fixed-partitions";
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#address-cells = <1>;
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#size-cells = <1>;
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boot_partition: partition@0 {
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label = "mcuboot";
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reg = <0x00000000 DT_SIZE_K(48)>;
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read-only;
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};
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slot0_partition: partition@c000 {
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label = "image-0";
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reg = <0x0000c000 DT_SIZE_K(80)>;
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};
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};
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};

‎boards/fysetc/ucan/ucan.yaml‎

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identifier: ucan
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name: FYSETC UCAN
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type: mcu
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arch: arm
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toolchain:
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- zephyr
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- gnuarmemb
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ram: 16
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flash: 128
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supported:
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- can
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- gpio
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- usb_device
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- usbd
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vendor: fysetc

‎boards/fysetc/ucan/ucan_defconfig‎

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CONFIG_GPIO=y

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