samples:drivers:led_ws2812: nRF7002DK support

New config files to support nRF700DK Signed-off-by: Daniel Istvan Nemeth <[email protected]>
zephyrproject-rtos · Nov 5, 2023 · 09aaaa3 · 09aaaa3
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diff --git a/samples/drivers/led_ws2812/README.rst b/samples/drivers/led_ws2812/README.rst
@@ -102,6 +102,7 @@ This sample uses different drivers depending on the selected board:
 I2S driver:
 
 - thingy52_nrf52832
+- nrf7002dk_nrf5340 (1.8V logic level, make sure to use a logic level shifter!)
 
 SPI driver:
 

diff --git a/samples/drivers/led_ws2812/boards/nrf7002dk_nrf5340.conf b/samples/drivers/led_ws2812/boards/nrf7002dk_nrf5340.conf
@@ -0,0 +1,5 @@
+CONFIG_SPI=n
+
+CONFIG_I2S=y
+CONFIG_WS2812_STRIP=y
+CONFIG_WS2812_STRIP_I2S=y
diff --git a/samples/drivers/led_ws2812/boards/nrf7002dk_nrf5340.overlay b/samples/drivers/led_ws2812/boards/nrf7002dk_nrf5340.overlay
@@ -0,0 +1,41 @@
+#include <zephyr/dt-bindings/led/led.h>
+
+&pinctrl {
+	i2s0_default_alt: i2s0_default_alt {
+		group1 {
+			/* Default I2S config for the nRF5340, P1.13 is the output */
+			psels = <NRF_PSEL(I2S_SCK_M, 1, 15)>,
+				<NRF_PSEL(I2S_LRCK_M, 1, 12)>,
+				<NRF_PSEL(I2S_SDOUT, 1, 13)>,
+				<NRF_PSEL(I2S_SDIN, 1, 14)>;
+		};
+	};
+};
+
+i2s_led: &i2s0 {
+	status = "okay";
+	pinctrl-0 = <&i2s0_default_alt>;
+	pinctrl-names = "default";
+};
+
+&gpio1 {
+	status = "okay";
+};
+
+/ {
+	led_strip: ws2812 {
+		compatible = "worldsemi,ws2812-i2s";
+
+		i2s-dev = < &i2s_led >;
+		chain-length = <42>; /* arbitrary; change at will */
+		color-mapping = <LED_COLOR_ID_GREEN
+					LED_COLOR_ID_RED
+					LED_COLOR_ID_BLUE>;
+		// out-active-low;
+		reset-delay = <500>;
+	};
+
+	aliases {
+		led-strip = &led_strip;
+	};
+};