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BucknallaBucknalla
committedMar 28, 2025
boards: blues: adds Cygnet
Adds new STM32L433 Feather Board from Blues Signed-off-by: Alex Bucknall <alex.bucknall@gmail.com>
1 parent fb4bb5d commit 6f49ec6

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‎boards/blues/cygnet/Kconfig.cygnet

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# Copyright (c) 2025 Blues
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# SPDX-License-Identifier: Apache-2.0
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config BOARD_CYGNET
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select SOC_STM32L433XX

‎boards/blues/cygnet/Kconfig.defconfig

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# STM32L433CC Cygnet board configuration
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# Copyright (c) 2025 Blues
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# SPDX-License-Identifier: Apache-2.0
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if BOARD_CYGNET
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config SPI_STM32_INTERRUPT
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default y
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depends on SPI
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endif # BOARD_CYGNET

‎boards/blues/cygnet/board.cmake

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# SPDX-License-Identifier: Apache-2.0
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# keep first
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board_runner_args(stm32cubeprogrammer "--port=swd" "--reset-mode=hw")
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board_runner_args(jlink "--device=STM32L433CC" "--speed=4000")
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# keep first
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include(${ZEPHYR_BASE}/boards/common/stm32cubeprogrammer.board.cmake)
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include(${ZEPHYR_BASE}/boards/common/openocd.board.cmake)
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include(${ZEPHYR_BASE}/boards/common/jlink.board.cmake)

‎boards/blues/cygnet/board.yml

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board:
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name: cygnet
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full_name: Cygnet
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vendor: blues
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socs:
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- name: stm32l433xx

‎boards/blues/cygnet/cygnet.dts

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/*
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* Copyright (c) 2025 Blues
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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/l4/stm32l433Xc.dtsi>
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#include <st/l4/stm32l433c(b-c)ux-pinctrl.dtsi>
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#include "feather_connector.dtsi"
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#include <zephyr/dt-bindings/input/input-event-codes.h>
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/ {
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model = "Blues Cygnet";
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compatible = "blues,cygnet";
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chosen {
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zephyr,console = &lpuart1;
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zephyr,shell-uart = &lpuart1;
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zephyr,sram = &sram0;
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zephyr,flash = &flash0;
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};
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leds: leds {
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compatible = "gpio-leds";
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user_led: led_0 {
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gpios = <&gpioa 8 GPIO_ACTIVE_HIGH>;
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label = "User LED";
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};
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};
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gpio_keys {
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compatible = "gpio-keys";
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user_button: button {
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gpios = <&gpioc 13 GPIO_ACTIVE_LOW>;
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label = "User Button";
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zephyr,code = <INPUT_KEY_0>;
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};
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};
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aliases {
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led0 = &user_led;
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sw0 = &user_button;
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};
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};
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&clk_lsi {
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status = "okay";
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};
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&clk_hsi {
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status = "okay";
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};
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&pll {
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div-m = <1>;
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mul-n = <20>;
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div-p = <7>;
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div-q = <2>;
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div-r = <4>;
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clocks = <&clk_hsi>;
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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(80)>;
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ahb-prescaler = <1>;
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apb1-prescaler = <1>;
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apb2-prescaler = <1>;
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};
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&lpuart1 {
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pinctrl-0 = <&lpuart1_tx_pb11 &lpuart1_rx_pb10>;
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pinctrl-names = "default";
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current-speed = <115200>;
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status = "okay";
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};
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&usart1 {
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pinctrl-0 = <&usart1_tx_pa9 &usart1_rx_pa10>;
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pinctrl-names = "default";
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current-speed = <115200>;
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};
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&spi1 {
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pinctrl-0 = <&spi1_sck_pa5 &spi1_miso_pa6 &spi1_mosi_pb5>;
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pinctrl-names = "default";
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cs-gpios = <&gpiob 0 (GPIO_ACTIVE_LOW | GPIO_PULL_UP)>;
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status = "okay";
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};
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&i2c1 {
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pinctrl-0 = <&i2c1_scl_pb6 &i2c1_sda_pb7>;
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pinctrl-names = "default";
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clock-frequency = <I2C_BITRATE_FAST>;
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status = "okay";
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};
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&timers2 {
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status = "okay";
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pwm2: pwm {
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status = "okay";
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pinctrl-0 = <&tim2_ch1_pa0>;
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pinctrl-names = "default";
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};
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};
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&can1 {
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pinctrl-0 = <&can1_rx_pb8 &can1_tx_pb9>;
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pinctrl-names = "default";
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status = "okay";
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};
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&rtc {
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clocks = <&rcc STM32_CLOCK_BUS_APB1 0x10000000>,
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<&rcc STM32_SRC_LSI RTC_SEL(2)>;
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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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/*
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* Reserve the final 16 KiB for file system partition
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*/
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storage_partition: partition@3c000 {
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label = "storage";
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reg = <0x0003c000 DT_SIZE_K(16)>;
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};
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};
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};

‎boards/blues/cygnet/cygnet.yaml

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identifier: cygnet
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name: Blues Cygnet
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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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- xtools
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ram: 64
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flash: 256
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supported:
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- nvs
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- can
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- spi
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- i2c
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- pwm
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- gpio
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- usb_device
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- counter
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- adc
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vendor: blues

‎boards/blues/cygnet/cygnet_defconfig

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# SPDX-License-Identifier: Apache-2.0
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# Enable MPU
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CONFIG_ARM_MPU=y
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# Enable HW stack protection
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CONFIG_HW_STACK_PROTECTION=y
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# Enable UART driver
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CONFIG_SERIAL=y
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# Enable GPIO
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CONFIG_GPIO=y
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# Enable console
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CONFIG_CONSOLE=y
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CONFIG_UART_CONSOLE=y

‎boards/blues/cygnet/doc/img/cygnet-pinout.webp

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‎boards/blues/cygnet/doc/img/cygnet.webp

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