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boards: others: add candleLightFD USB to CAN FD adapter board

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Add support for the open-hardware candleLight FD USB to CAN FD board.

Signed-off-by: Sean Nyekjaer <sean@geanix.com>
This commit is contained in:
Sean Nyekjaer 2024-11-15 13:59:54 +01:00 • committed by Benjamin Cabé
commit 0950aa47b1
11 changed files with 279 additions and 0 deletions
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boards/others/candlelightfd/Kconfig.candlelightfd Normal file
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# Copyright (c) 2024 Sean Nyekjaer <sean@geanix.com>
# SPDX-License-Identifier: Apache-2.0
config BOARD_CANDLELIGHTFD
select SOC_STM32G0B1XX

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boards/others/candlelightfd/board.cmake Normal file
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# Copyright (c) 2024 Sean Nyekjaer <sean@geanix.com>
# SPDX-License-Identifier: Apache-2.0
board_runner_args(dfu-util "--pid=0483:df11" "--alt=0" "--dfuse")
board_runner_args(jlink "--device=STM32G0B1CB")
include(${ZEPHYR_BASE}/boards/common/dfu-util.board.cmake)
include(${ZEPHYR_BASE}/boards/common/jlink.board.cmake)

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boards/others/candlelightfd/board.yml Normal file
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board:
name: candlelightfd
full_name: candleLightFD
vendor: others
socs:
- name: stm32g0b1xx
variants:
- name: 'dual'

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boards/others/candlelightfd/candlelightfd.dtsi Normal file
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/*
* Copyright (c) 2024 Sean Nyekjaer <sean@geanix.com>
*
* SPDX-License-Identifier: Apache-2.0
*/
#include <st/g0/stm32g0b1Xb.dtsi>
#include <st/g0/stm32g0b1r(b-c-e)tx-pinctrl.dtsi>
/ {
chosen {
zephyr,sram = &sram0;
zephyr,flash = &flash0;
zephyr,code-partition = &slot0_partition;
zephyr,canbus = &fdcan1;
};
aliases {
led0 = &led_rx;
led1 = &led_tx;
};
leds {
compatible = "gpio-leds";
led_rx: led_rx {
gpios = <&gpioa 3 GPIO_ACTIVE_LOW>;
label = "LED RX";
};
led_tx: led_tx {
gpios = <&gpioa 4 GPIO_ACTIVE_LOW>;
label = "LED TX";
};
};
transceiver0: can-phy0 {
compatible = "nxp,tja1051", "can-transceiver-gpio";
enable-gpios = <&gpioa 15 GPIO_ACTIVE_LOW>;
max-bitrate = <5000000>;
#phy-cells = <0>;
};
};
&clk_hse {
status = "okay";
clock-frequency = <DT_FREQ_M(8)>;
};
&clk_hsi48 {
status = "okay";
crs-usb-sof;
};
&pll {
div-m = <1>;
mul-n = <30>;
div-p = <2>;
div-q = <3>;
div-r = <4>;
clocks = <&clk_hse>;
status = "okay";
};
&rcc {
clocks = <&pll>;
clock-frequency = <DT_FREQ_M(60)>;
ahb-prescaler = <1>;
apb1-prescaler = <1>;
};
zephyr_udc0: &usb {
pinctrl-0 = <&usb_dm_pa11 &usb_dp_pa12>;
pinctrl-names = "default";
status = "okay";
};
&fdcan1 {
clocks = <&rcc STM32_CLOCK_BUS_APB1 0x00001000>,
<&rcc STM32_SRC_PLL_Q FDCAN_SEL(1)>;
pinctrl-0 = <&fdcan1_rx_pd0 &fdcan1_tx_pd1>;
pinctrl-names = "default";
phys = <&transceiver0>;
status = "okay";
};
&flash0 {
partitions {
compatible = "fixed-partitions";
#address-cells = <1>;
#size-cells = <1>;
boot_partition: partition@0 {
label = "mcuboot";
reg = <0x00000000 DT_SIZE_K(48)>;
read-only;
};
slot0_partition: partition@c000 {
label = "image-0";
reg = <0x0000c000 DT_SIZE_K(80)>;
};
};
};

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boards/others/candlelightfd/candlelightfd_stm32g0b1xx.dts Normal file
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/*
* Copyright (c) 2024 Sean Nyekjaer <sean@geanix.com>
*
* SPDX-License-Identifier: Apache-2.0
*/
/dts-v1/;
#include "candlelightfd.dtsi"
/ {
model = "candleLight FD";
compatible = "candlelightfd";
};

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boards/others/candlelightfd/candlelightfd_stm32g0b1xx.yaml Normal file
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identifier: candlelightfd/stm32g0b1xx
name: candleLightFD
type: mcu
arch: arm
toolchain:
- zephyr
- gnuarmemb
ram: 144
flash: 128
vendor: others

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boards/others/candlelightfd/candlelightfd_stm32g0b1xx_defconfig Normal file
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# Enable MPU
CONFIG_ARM_MPU=y
# Enable HW stack protection
CONFIG_HW_STACK_PROTECTION=y
# Enable GPIO
CONFIG_GPIO=y

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boards/others/candlelightfd/candlelightfd_stm32g0b1xx_dual.dts Normal file
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/*
* Copyright (c) 2024 Sean Nyekjaer <sean@geanix.com>
*
* SPDX-License-Identifier: Apache-2.0
*/
/dts-v1/;
#include "candlelightfd.dtsi"
/ {
model = "candleLight FD Dual";
compatible = "candlelightfd";
transceiver1: can-phy1 {
compatible = "nxp,tja1051", "can-transceiver-gpio";
enable-gpios = <&gpiob 2 GPIO_ACTIVE_LOW>;
max-bitrate = <5000000>;
#phy-cells = <0>;
};
};
&fdcan2 {
clocks = <&rcc STM32_CLOCK_BUS_APB1 0x00001000>,
<&rcc STM32_SRC_PLL_Q FDCAN_SEL(1)>;
pinctrl-0 = <&fdcan2_rx_pb0 &fdcan2_tx_pb1>;
pinctrl-names = "default";
phys = <&transceiver1>;
status = "okay";
};

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boards/others/candlelightfd/candlelightfd_stm32g0b1xx_dual.yaml Normal file
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identifier: candlelightfd/stm32g0b1xx/dual
name: candleLightFD Dual
type: mcu
arch: arm
toolchain:
- zephyr
- gnuarmemb
ram: 144
flash: 128
vendor: others

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boards/others/candlelightfd/candlelightfd_stm32g0b1xx_dual_defconfig Normal file
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# Enable MPU
CONFIG_ARM_MPU=y
# Enable HW stack protection
CONFIG_HW_STACK_PROTECTION=y
# Enable GPIO
CONFIG_GPIO=y

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boards/others/candlelightfd/doc/index.rst Normal file
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.. zephyr:board:: candlelightfd
Overview
********
The candleLight FD is an open-hardware USB to CAN FD adapter board available from Linux Automation GmBH.
Find more information about the board at the `Linux Automation website`_.
Hardware
********
The candleLight FD board is equipped with a STM32G0B1CBT6 microcontroller and features an USB-C connector,
a DB-9M connector for the CAN bus, and two user LEDs. Schematics and component placement drawings
are available in the `candleLight FD GitHub repository`_.
Supported Features
==================
The ``candlelightfd/stm32g0b1xx`` board target 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 |
+-----------+------------+-------------------------------------+
| CAN2 | on-chip | CAN controller |
+-----------+------------+-------------------------------------+
The default configuration can be found in the defconfig file:
:zephyr_file:`boards/others/candlelightfd/candlelightfd_stm32g0b1xx_defconfig`.
System Clock
============
The STM32G0B1CBT6 PLL is driven by an external crystal oscillator (HSE) running at 8 MHz and
configured to provide a system clock of 60 MHz. This allows generating a FDCAN1 and FDCAN2 core
clock of 80 MHz.
Programming and Debugging
*************************
Build and flash applications as usual (see :ref:`build_an_application` and
:ref:`application_run` for more details).
If flashing via USB DFU, short jumper ``BOOT`` when applying power to the candleLight FD in order to
enter the built-in DFU mode.
Variants
========
The candleLight FD is can be retrofitted with a second transceiver, making it a dual CAN FD device:
- ``candlelightfd``: The default variant.
- ``candlelightfd_stm32g0b1xx_dual``: Variant for the dual CAN FD.
Here is an example for the :zephyr:code-sample:`blinky` application.
.. zephyr-app-commands::
:zephyr-app: samples/basic/blinky
:board: candlelightfd
:goals: flash
.. _Linux Automation website:
https://linux-automation.com/en/products/candlelight-fd.html
.. _candleLight FD GitHub repository:
https://github.com/linux-automation/candleLightFD