feat: Added the board sparkfun micromod nrf52840 and the micromod interconnect

app/boards/arm/sparkfun_micromod_nrf52840/CMakeLists.txt

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+# SPDX-License-Identifier: MIT
+
+
+set_property(GLOBAL APPEND PROPERTY extra_post_build_commands
+  COMMAND ${PYTHON_EXECUTABLE} ${ZEPHYR_BASE}/../tools/uf2/utils/uf2conv.py
+  -c 
+  -b 0x26000
+  -f 0xADA52840
+  -o ${PROJECT_BINARY_DIR}/${CONFIG_KERNEL_BIN_NAME}.uf2
+  ${PROJECT_BINARY_DIR}/${CONFIG_KERNEL_BIN_NAME}.bin
+)

app/boards/arm/sparkfun_micromod_nrf52840/Kconfig

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+# Copyright (c) 2021 The ZMK Contributors
+# SPDX-License-Identifier: MIT
+
+config BOARD_ENABLE_DCDC
+	bool "Enable DCDC mode"
+	select SOC_DCDC_NRF52X
+	default y
+	depends on (BOARD_SPARKFUN_MICROMOD_NRF52840)

app/boards/arm/sparkfun_micromod_nrf52840/Kconfig.board

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+#Copyright(c) 2021 The ZMK Contributors
+#SPDX - License - Identifier : MIT
+
+config BOARD_SPARKFUN_MICROMOD_NRF52840
+	bool "micromod_nrf52840"
+	depends on SOC_NRF52840_QIAA
+

app/boards/arm/sparkfun_micromod_nrf52840/Kconfig.defconfig

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+#Copyright(c) 2021 The ZMK Contributors
+#SPDX - License - Identifier : MIT
+
+if BOARD_SPARKFUN_MICROMOD_NRF52840
+
+	config BOARD default "sparkfun_micromod_nrf52480"
+
+    if USB
+
+        config USB_NRFX default y
+
+		config USB_DEVICE_STACK default y
+
+	endif #USB
+
+    config BT_CTLR default BT
+
+	config ZMK_BLE default y
+
+	config ZMK_USB default y
+
+endif #BOARD_SPARKFUN_MICROMOD_NRF52840

app/boards/arm/sparkfun_micromod_nrf52840/board.cmake

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+# SPDX-License-Identifier: MIT
+
+
+board_runner_args(nrfjprog "--nrf-family=NRF52" "--softreset")
+include(${ZEPHYR_BASE}/boards/common/blackmagicprobe.board.cmake)
+include(${ZEPHYR_BASE}/boards/common/nrfjprog.board.cmake)

app/boards/arm/sparkfun_micromod_nrf52840/sparkfun_micromod.dtsi

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+/*
+ * Copyright (c) 2021 The ZMK Contributors
+ *
+ * SPDX-License-Identifier: MIT
+ */
+
+/ {
+	micromod: connector {
+		compatible = "sparkfun,micromod-gpio";
+		#gpio-cells = <2>;
+		gpio-map-mask = <0xffffffff 0xffffffc0>;
+		gpio-map-pass-thru = <0 0x3f>;
+		gpio-map
+			= <0 0 &gpio0 29 0>		 /* G0  - GPIO0/P0.29  	, MicroMod pad 40 */
+			, <1 0 &gpio0 3 0>		 /* G1  - GPIO1/P0.03  	, MicroMod pad 42 */
+			, <2 0 &gpio1 13 0>		 /* G2  - GPIO2/P1.13  	, MicroMod pad 44 */
+			, <3 0 &gpio1 12 0>		 /* G3  - GPIO3/P1.12  	, MicroMod pad 46 */
+			, <4 0 &gpio1 11 0>		 /* G4  - GPIO4/P1.11  	, MicroMod pad 48 */
+			, <5 0 &gpio0 17 0>		 /* G5  - GPIO5/P0.17  	, MicroMod pad 73 */
+			, <6 0 &gpio1 6 0>		 /* G6  - GPIO6/P1.06  	, MicroMod pad 71 */
+			, <7 0 &gpio1 4 0>		 /* G7  - GPIO7/P1.04  	, MicroMod pad 69 */
+			, <8 0 &gpio1 14 0>		 /* G8  - GPIO8/P1.14  	, MicroMod pad 67 */
+			, <9 0 &gpio0 9 0>		 /* G9  - GPIO9/P0.09  	, MicroMod pad 65  */
+			, <10 0 &gpio0 10 0>	 /* G10 - GPIO10/P0.10 	, MicroMod pad 63  */
+			, <11 0 &gpio0 27 0>	 /* D0 - P0.27			, MicroMod pad pad 10 */
+			, <12 0 &gpio1 8 0>	 	 /* D1 - P1.08 			, MicroMod pad pad 18 */
+			, <13 0 &gpio1 6 0>	 	 /* PWM0 - P0.06 		, MicroMod pad pad 32 */
+			, <14 0 &gpio1 16 0>	 /* PWM1 - P0.16 		, MicroMod pad pad 47 */
+			;
+	};
+
+	micromod_a: connector_a {
+		compatible = "sparkfun,micromod-gpio";
+		#gpio-cells = <2>;
+		gpio-map-mask = <0xffffffff 0xffffffc0>;
+		gpio-map-pass-thru = <0 0x3f>;
+		gpio-map
+			= <0 0 &gpio0 4 0>		/* A0 - ADC0/P0.04 , MicroMod pad 34 (Input Only!) */
+			, <1 0 &gpio0 5 0>		/* A1 - ADC1/P0.05 , MicroMod pad pad 38 (Input Only!) */
+
+			;
+	};
+
+
+};
+
+micromod_d: &micromod {};
+
+micromod_i2c1: &i2c0 {};
+micromod_i2c2: &i2c1 {};
+
+micromod_spi1: &spi0 {};
+micromod_spi2: &spi1 {};
+
+micromod_serial1: &uart0 {};
+micromod_serial2: &uart1 {};

app/boards/arm/sparkfun_micromod_nrf52840/sparkfun_micromod_nrf52840.dts

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+/*
+ * Copyright (c) 2021 The ZMK Contributors
+ *
+ * SPDX-License-Identifier: MIT
+ */
+
+/dts-v1/;
+#include <nordic/nrf52840_qiaa.dtsi>
+#include "sparkfun_micromod.dtsi"
+
+
+/ {
+	model = "Sparkfun MicroMod nrf52840";
+	compatible = "sparkfun,micromod-gpio";
+
+	chosen {
+		zephyr,code-partition = &code_partition;
+		zephyr,sram = &sram0;
+		zephyr,flash = &flash0;
+	};
+
+	leds {
+		compatible = "gpio-leds";
+		blue_led: led_0 {
+			gpios = <&gpio0 13 GPIO_ACTIVE_HIGH>;
+			label = "Blue LED";
+		};
+	};
+};
+
+&adc {
+	status = "okay";
+};
+
+&gpiote {
+	status = "okay";
+};
+
+&gpio0 {
+	status = "okay";
+};
+
+&gpio1 {
+	status = "okay";
+};
+
+&usbd {
+	status = "okay";
+};
+
+
+
+&spi1 {
+	compatible = "nordic,nrf-spim";
+	/* Cannot be used together with i2c0. */
+	status = "okay";
+	sck-pin = <19>;
+	mosi-pin = <14>; // MOSI = COPI
+	miso-pin = <21>; // MISO = COPO
+	cs-gpios = <&gpio0 32 GPIO_ACTIVE_HIGH>;
+
+
+};
+
+&spi0 {
+	compatible = "nordic,nrf-spim";
+	/* Cannot be used together with i2c0. */
+	status = "okay";
+	sck-pin = <28>;
+	mosi-pin = <31>; // MOSI = COPI
+	miso-pin = <2>; // MISO = COPO
+	cs-gpios = <&gpio0 20 GPIO_ACTIVE_HIGH>;
+
+
+
+};
+
+
+
+&i2c0 {
+	compatible = "nordic,nrf-twi";
+	sda-pin = <8>;
+	scl-pin = <11>;
+};
+
+&i2c1 {
+	compatible = "nordic,nrf-twi";
+	sda-pin = <33>;
+	scl-pin = <24>;
+};
+
+&uart0 {
+	compatible = "nordic,nrf-uarte";
+	tx-pin = <35>;
+	rx-pin = <42>;
+};
+
+
+
+
+
+
+&flash0 {
+	/*
+	 * For more information, see:
+	 * http://docs.zephyrproject.org/latest/devices/dts/flash_partitions.html
+	 */
+	partitions {
+		compatible = "fixed-partitions";
+		#address-cells = <1>;
+		#size-cells = <1>;
+
+		sd_partition: partition@0 {
+			label = "softdevice";
+			reg = <0x00000000 0x00026000>;
+		};
+		code_partition: partition@26000 {
+			label = "code_partition";
+			reg = <0x00026000 0x000c6000>;
+		};
+
+		/*
+		 * The flash starting at 0x000ec000 and ending at
+		 * 0x000f3fff is reserved for use by the application.
+		 */
+
+		/*
+		 * Storage partition will be used by FCB/LittleFS/NVS
+		 * if enabled.
+		 */
+		storage_partition: partition@ec000 {
+			label = "storage";
+			reg = <0x000ec000 0x00008000>;
+		};
+
+		boot_partition: partition@f4000 {
+			label = "adafruit_boot";
+			reg = <0x000f4000 0x0000c000>;
+		};
+	};
+};
+
+

app/boards/arm/sparkfun_micromod_nrf52840/sparkfun_micromod_nrf52840.yaml

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+identifier: sparkfun_micromod_nrf52840
+name: sparkfun micromod nrf52840
+type: mcu
+arch: arm
+toolchain:
+  - zephyr
+  - gnuarmemb
+  - xtools
+supported:
+  - adc
+  - usb_device
+  - ble
+  - ieee802154
+  - pwm
+  - watchdog

app/boards/arm/sparkfun_micromod_nrf52840/sparkfun_micromod_nrf52840.zmk.yml

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+file_format: "1"
+id: sparkfun_micromod_nrf52840
+name: sparkfun micromod nrf52840
+type: board
+arch: arm
+outputs:
+  - usb
+  - ble
+url: https://www.sparkfun.com/products/16984
+exposes: [micromod]

app/boards/arm/sparkfun_micromod_nrf52840/sparkfun_micromod_nrf52840_defconfig

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+# Copyright (c) 2021 The ZMK Contributors
+# SPDX-License-Identifier: MIT
+
+
+CONFIG_SOC_SERIES_NRF52X=y
+CONFIG_SOC_NRF52840_QIAA=y
+CONFIG_BOARD_SPARKFUN_MICROMOD_NRF52840=y
+
+# Enable MPU
+CONFIG_ARM_MPU=y
+
+# enable GPIO
+CONFIG_GPIO=y
+
+
+CONFIG_ZMK_DISPLAY=y
+CONFIG_LVGL_USE_THEME_MONO=y
+CONFIG_LVGL_COLOR_TRANSP_CUSTOM=y
+CONFIG_LVGL_CUSTOM_COLOR_TRANSP_RED=0x00
+CONFIG_LVGL_CUSTOM_COLOR_TRANSP_GREEN=0x00
+CONFIG_LVGL_CUSTOM_COLOR_TRANSP_BLUE=0x00
+
+
+
+CONFIG_USE_DT_CODE_PARTITION=y
+
+CONFIG_MPU_ALLOW_FLASH_WRITE=y
+CONFIG_NVS=y
+CONFIG_SETTINGS_NVS=y
+CONFIG_FLASH=y
+CONFIG_FLASH_PAGE_LAYOUT=y
+CONFIG_FLASH_MAP=y                      

app/boards/interconnects/sparkfun_micromod/sparkfun_micromod.zmk.yml

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+file_format: "1"
+id: sparkfun_micromod
+name: SparkFun Micro Mod
+type: interconnect
+url: https://www.sparkfun.com/micromod
+manufacturer: SparkFun
+description: |
+  #TODO Add this latter