Paw

app/boards/arm/paw/CMakeLists.txt

@@ -0,0 +1,8 @@
+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/paw/Kconfig

@@ -0,0 +1,7 @@
+# SPDX-License-Identifier: MIT
+
+config BOARD_ENABLE_DCDC
+	bool "Enable DCDC mode"
+	select SOC_DCDC_NRF52X
+	default y
+	depends on BOARD_PAW

app/boards/arm/paw/Kconfig.board

@@ -0,0 +1,9 @@
+# Paw board configuration
+
+# Copyright (c) 2020 Taylor Glaeser
+# SPDX-License-Identifier: MIT
+
+config BOARD_PAW
+	bool "Paw"
+	depends on SOC_NRF52840_QIAA
+

app/boards/arm/paw/Kconfig.defconfig

@@ -0,0 +1,37 @@
+# Copyright (c) 2020 Taylor Glaeser
+# SPDX-License-Identifier: MIT
+
+if BOARD_PAW
+
+config BOARD
+	default "paw"
+
+config ZMK_KEYBOARD_NAME
+  default "Paw"
+
+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
+
+config ZMK_RGB_UNDERGLOW
+  default y
+
+config WS2812_STRIP
+  default y
+
+endif # BOARD_PAW

app/boards/arm/paw/board.cmake

@@ -0,0 +1,5 @@
+# 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/paw/paw.dts

@@ -0,0 +1,127 @@
+/*
+ * Copyright (c) 2020 Taylor Glaeser
+ *
+ * SPDX-License-Identifier: MIT
+ */
+
+/dts-v1/;
+#include <nordic/nrf52840_qiaa.dtsi>
+
+/ {
+	model = "Paw";
+	compatible = "paw";
+
+	chosen {
+		zephyr,code-partition = &code_partition;
+		zephyr,sram = &sram0;
+		zephyr,flash = &flash0;
+		zmk,kscan = &kscan0;
+		zmk,underglow = &led_strip;
+	};
+
+	kscan0: kscan {
+		compatible = "zmk,kscan-gpio-direct";
+		label = "KSCAN";
+		input-gpios
+			= <&gpio0 3 (GPIO_ACTIVE_LOW | GPIO_PULL_UP)>
+			, <&gpio0 10 (GPIO_ACTIVE_LOW | GPIO_PULL_UP)>
+			, <&gpio0 24 (GPIO_ACTIVE_LOW | GPIO_PULL_UP)>
+			, <&gpio0 13 (GPIO_ACTIVE_LOW | GPIO_PULL_UP)>
+			;
+	};
+
+	leds {
+		compatible = "gpio-leds";
+		blue_led: led_0 {
+			gpios = <&gpio1 10 GPIO_ACTIVE_HIGH>;
+			label = "Blue LED";
+		};
+	};
+};
+
+&spi1 {
+  compatible = "nordic,nrf-spim";
+  status = "okay";
+  mosi-pin = <22>;
+  // Unused pins, needed for SPI definition, but not used by the ws2812 driver itself.
+  sck-pin = <6>;
+  miso-pin = <7>;
+
+  led_strip: ws2812@0 {
+    compatible = "worldsemi,ws2812-spi";
+    label = "WS2812";
+
+    /* SPI */
+    reg = <0>; /* ignored, but necessary for SPI bindings */
+    spi-max-frequency = <4000000>;
+
+    /* WS2812 */
+    chain-length = <4>; /* number of LEDs */
+    spi-one-frame = <0x70>;
+    spi-zero-frame = <0x40>;
+  };
+};
+
+&gpio0 {
+	status = "okay";
+};
+
+&gpio1 {
+	status = "okay";
+};
+
+&i2c0 {
+	compatible = "nordic,nrf-twi";
+	sda-pin = <17>;
+	scl-pin = <20>;
+};
+
+&uart0 {
+	compatible = "nordic,nrf-uarte";
+	status = "okay";
+	current-speed = <115200>;
+	tx-pin = <39>;
+	rx-pin = <34>;
+	rts-pin = <33>;
+	cts-pin = <12>;
+};
+
+&usbd {
+	status = "okay";
+};
+
+
+&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>;
+
+		boot_partition: partition@0 {
+			label = "adafruit_boot";
+			reg = <0x000000000 0x0000C000>;
+		};
+		code_partition: partition@26000 {
+			label = "code_partition";
+			reg = <0x00026000 0x000d2000>;
+		};
+
+		/*
+		 * The flash starting at 0x000f8000 and ending at
+		 * 0x000fffff is reserved for use by the application.
+		 */
+
+		/*
+		 * Storage partition will be used by FCB/LittleFS/NVS
+		 * if enabled.
+		 */
+		storage_partition: partition@f8000 {
+			label = "storage";
+			reg = <0x000f8000 0x00008000>;
+		};
+	};
+};

app/boards/arm/paw/paw.keymap

@@ -0,0 +1,25 @@
+#include <behaviors.dtsi>
+#include <dt-bindings/zmk/keys.h>
+#include <dt-bindings/zmk/bt.h>
+
+/ {
+  keymap {
+    compatible = "zmk,keymap";
+
+    default_layer {
+// -----------------------------------------------------------------------------------------
+// TODO: Add diagram for keymap
+      bindings = <
+                 &lt 1 UARW
+        &kp LARW &kp DARW &kp RARW
+      >;
+    };
+
+    lower_layer {
+      bindings = <
+              &trans
+        &bt BT_CLR &bt BT_SEL 0 &bt BT_NXT
+      >;
+    };
+  };
+};

app/boards/arm/paw/paw.yaml

@@ -0,0 +1,15 @@
+identifier: paw
+name: Paw
+type: mcu
+arch: arm
+toolchain:
+  - zephyr
+  - gnuarmemb
+  - xtools
+supported:
+  - adc
+  - usb_device
+  - ble
+  - ieee802154
+  - pwm
+  - watchdog

app/boards/arm/paw/paw_defconfig

@@ -0,0 +1,23 @@
+# SPDX-License-Identifier: MIT
+
+CONFIG_SOC_SERIES_NRF52X=y
+CONFIG_SOC_NRF52840_QIAA=y
+CONFIG_BOARD_PAW=y
+
+# Enable MPU
+CONFIG_ARM_MPU=y
+
+# enable GPIO
+CONFIG_GPIO=y
+
+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
+CONFIG_CLOCK_CONTROL_NRF=y
+CONFIG_CLOCK_CONTROL_NRF_K32SRC_RC=y
+