clock-arch.c File Reference

Implementation of the clock libary for CC13xx/CC26xx. More...

#include "contiki.h"
#include "sys/cc.h"
#include "sys/clock.h"
#include "sys/etimer.h"
#include <ti/devices/DeviceFamily.h>
#include <DeviceFamily_constructPath(driverlib/aon_rtc.h)>
#include <DeviceFamily_constructPath(driverlib/systick.h)>
#include <ti/drivers/dpl/ClockP.h>
#include <ti/drivers/power/PowerCC26XX.h>
#include "watchdog-arch.h"
#include <stdbool.h>
#include <stdint.h>

Go to the source code of this file.

Functions
bool	clock_arch_enter_idle (void)
	Prepare to enter some low-power mode.
void	clock_arch_exit_idle (void)
	Cleanup after returning from low-power mode.
void	clock_arch_standby_policy (void)
	Called by the Power driver when dropping to some low-power state.
void	clock_init (void)
	Initialize the clock library.
clock_time_t	clock_time (void)
	Get the current clock time.
unsigned long	clock_seconds (void)
	Get the current value of the platform seconds.
void	clock_wait (clock_time_t i)
	Wait for a given number of ticks.
void	clock_delay_usec (uint16_t usec)
	Delay a given number of microseconds.
void	clock_delay (unsigned int i)
	Obsolete delay function but we implement it here since some code still uses it.

Detailed Description

Implementation of the clock libary for CC13xx/CC26xx.

The periodic polling of etimer is implemented using SysTick. Since SysTick is paused when the system clock stopped, that is when the device enters some low-power mode, a wakeup clock is armed with the next etimer expiration time OR watchdog timeout everytime the device enters some low-power mode.

Definition in file clock-arch.c.