power.c File Reference

Power management implementation. More...

#include "power.h"
#include "regs.h"
#include <nrf52840.h>
#include <cmsis_gcc.h>

Macros
#define	BUTTON_PIN   2u
#define	BUTTON_ACTIVE_LOW   1u

Functions
void	power_init (void)
	Enable the DC/DC converter, configure GPIO input and GPIOTE wakeup on the PTT button.
void	power_sleep_until_button (void)
	Enter SYSTEM_ON low-power sleep and return on the next GPIOTE event.
bool	power_button_pressed (void)
	Return the current state of the PTT button.
void	GPIOTE_IRQHandler (void)

Detailed Description

Power management implementation.

Macro Definition Documentation

BUTTON_ACTIVE_LOW

#define BUTTON_ACTIVE_LOW   1u

BUTTON_PIN

#define BUTTON_PIN   2u

Function Documentation

GPIOTE_IRQHandler()

void GPIOTE_IRQHandler

(

void

)

power_button_pressed()

bool power_button_pressed

(

void

)

Return the current state of the PTT button.

Returns

true when the button is pressed.

power_init()

void power_init

(

void

)

Enable the DC/DC converter, configure GPIO input and GPIOTE wakeup on the PTT button.

power_sleep_until_button()

void power_sleep_until_button

(

void

)

Enter SYSTEM_ON low-power sleep and return on the next GPIOTE event.

Sets TASKS_LOWPWR then executes WFI. The CPU wakes when the GPIOTE interrupt fires (button press) and resumes from here.