michaelh/zephyr
1
0
Fork 0
Code Releases Activity

pwm: Add PWM support for nRF5340 Audio DK RGB LED

Browse source 
Adding PWM support for the center RGB LED to allow for
fancy disco lights, suitable for an audio development kit.

Signed-off-by: Lars Knudsen <larsgk@gmail.com>
This commit is contained in:
Lars Knudsen 2023-01-15 11:03:50 +01:00 • committed by Carles Cufí
commit 426c9cbc90
2 changed files with 42 additions and 0 deletions
Download patch file Download diff file Expand all files Collapse all files

17
boards/arm/nrf5340_audio_dk_nrf5340/nrf5340_audio_dk_nrf5340_cpuapp_common-pinctrl.dtsi
View file

@ -66,6 +66,23 @@
};
};
pwm0_default: pwm0_default {
group1 {
psels = <NRF_PSEL(PWM_OUT0, 0, 7)>,
<NRF_PSEL(PWM_OUT1, 0, 25)>,
<NRF_PSEL(PWM_OUT2, 0, 26)>;
};
};
pwm0_sleep: pwm0_sleep {
group1 {
psels = <NRF_PSEL(PWM_OUT0, 0, 7)>,
<NRF_PSEL(PWM_OUT1, 0, 25)>,
<NRF_PSEL(PWM_OUT2, 0, 26)>;
low-power-enable;
};
};
spi4_default: spi4_default {
group1 {
psels = <NRF_PSEL(SPIM_SCK, 0, 8)>,

25
boards/arm/nrf5340_audio_dk_nrf5340/nrf5340_audio_dk_nrf5340_cpuapp_common.dtsi
View file

@ -29,6 +29,28 @@
compatible = "nordic,npm1100";
nordic,iset-gpios = <&gpio0 23 GPIO_ACTIVE_HIGH>;
};
pwmleds {
compatible = "pwm-leds";
rgb1_red_pwm_led: pwm_led_0 {
pwms = <&pwm0 0 PWM_MSEC(20) PWM_POLARITY_NORMAL>;
};
rgb1_green_pwm_led: pwm_led_1 {
pwms = <&pwm0 1 PWM_MSEC(20) PWM_POLARITY_NORMAL>;
};
rgb1_blue_pwm_led: pwm_led_2 {
pwms = <&pwm0 2 PWM_MSEC(20) PWM_POLARITY_NORMAL>;
};
};
aliases {
pwm-led0 = &rgb1_red_pwm_led;
pwm-led1 = &rgb1_green_pwm_led;
pwm-led2 = &rgb1_blue_pwm_led;
red-pwm-led = &rgb1_red_pwm_led;
green-pwm-led = &rgb1_green_pwm_led;
blue-pwm-led = &rgb1_blue_pwm_led;
};
};
&adc {
@ -140,6 +162,9 @@
&pwm0 {
status = "okay";
pinctrl-0 = <&pwm0_default>;
pinctrl-1 = <&pwm0_sleep>;
pinctrl-names = "default", "sleep";
};
&timer0 {