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diff --git a/zephyr/projects/intelrvp/led.md b/zephyr/projects/intelrvp/led.md new file mode 100644 index 0000000000..c36bc6b36c --- /dev/null +++ b/zephyr/projects/intelrvp/led.md @@ -0,0 +1,44 @@ +## LED behavior on Intel RVP + +There are two LEDs on RVP, they represent battery and charger status +respectively. + +LED | Description +------------|------------------------ +CHARGER_LED | Represent charger state +BATTERY_LED | Represent battery state + +LEDs on RVP emit a single color (green). Rather than just using the on and off +state of the LED, PWM is used to blink the LED to represent multiple states and +the below table represents the multiple LED states. + +LED State | Description +---------------|------------------------------ +LED_ON | Switch On using gpio/pwmduty +LED_OFF | Switch Off using gpio/pwmduty +LED_FLASH_SLOW | Flashing with 2 sec period +LED_FLASH_FAST | Flashing with 250ms period + +### LED Behavior : Charger + +CHARGER_LED is dedicated to represent Charger status and the below table +represents the LED states for the Charger. + +Charger Status | LED States +---------------------|--------------- +Charging | LED_ON +Discharging | LED_FLASH_SLOW +Charging error | LED_FLASH_FAST +No Charger Connected | LED_OFF + +### LED Behavior : Battery + +BATTERY_LED is dedicated to represent Battery status and the below table +represents the LED states for the Battery. + +Battery Status | LED States +----------------------------|--------------- +Battery Low (<10%) | LED_FLASH_FAST +Battery Normal (10% to 90%) | LED_FLASH_SLOW +Battery Full (>90%) | LED_ON +Battery Not Present | LED_OFF |