RTC emulation on top of a RTT

Detailed Description

Files
file	rtt_rtc.h
	Additional functions provided in addition to the normal RTC API.

Functions
void	rtt_rtc_settimeofday (uint32_t s, uint32_t us)
	Set the time as epoch (elapsed seconds since RIOT_EPOCH) with sub-second precision This feature is an extension provided by the rtt_rtc module.
void	rtt_rtc_gettimeofday (uint32_t *s, uint32_t *us)
	Get the current epoch (elapsed seconds since RIOT_EPOCH) with sub-second precision This feature is an extension provided by the rtt_rtc module.

Function Documentation

rtt_rtc_gettimeofday()

void rtt_rtc_gettimeofday	(	uint32_t *	s,
		uint32_t *	us
	)

Get the current epoch (elapsed seconds since RIOT_EPOCH) with sub-second precision This feature is an extension provided by the rtt_rtc module.

Note

The actual µs precision depends on the underlying hardware. The smallest time step will be 1 / RTT_FREQUENCY.

Parameters

[out]	s	The current epoch timestamp
[out]	us	Sub-Seconds

rtt_rtc_settimeofday()

void rtt_rtc_settimeofday	(	uint32_t	s,
		uint32_t	us
	)

Set the time as epoch (elapsed seconds since RIOT_EPOCH) with sub-second precision This feature is an extension provided by the rtt_rtc module.

Note

The actual µs precision depends on the underlying hardware. The smallest time step will be 1 / RTT_FREQUENCY.

Parameters

[in]	s	The new epoch timestamp
[in]	us	Sub-Seconds