LED PWM sample application¶
This sample allows to test the led-pwm driver. The first “pwm-leds” compatible device instance found in DT is used. For each LEDs attached to this device (child nodes) the same test pattern (described below) is executed. The LED API functions are used to control the LEDs.
For each PWM LEDs (one after the other):
increase the brightness gradually up to the maximum level
blink (0.1 sec on, 0.1 sec off)
blink (1 sec on, 1 sec off)
Building and Running¶
This sample can be built and executed on all the boards with PWM LEDs connected. The LEDs must be correctly described in the DTS: the compatible property of the device node must match “pwm-leds”. And for each LED, a child node must be defined and the PWM configuration must be provided through a “pwms” phandle’s node.