rtt.c File Reference

#include "chip.h"
#include <assert.h>

Functions
void	RTT_SetPrescaler (Rtt *rtt, uint16_t prescaler)
	Changes the prescaler value of the given RTT and restarts it.
uint32_t	RTT_GetTime (Rtt *rtt)
	Returns the current value of the RTT timer value.
void	RTT_EnableIT (Rtt *rtt, uint32_t sources)
	Enables the specified RTT interrupt sources.
uint32_t	RTT_GetStatus (Rtt *rtt)
	Returns the status register value of the given RTT.
void	RTT_SetAlarm (Rtt *pRtt, uint32_t time)
	Configures the RTT to generate an alarm at the given time.

Detailed Description

Implementation of Real Time Timer (RTT) controller.

Function Documentation

RTT_EnableIT()

void RTT_EnableIT	(	Rtt *	rtt,
		uint32_t	sources
	)

Enables the specified RTT interrupt sources.

Parameters

rtt	Pointer to a Rtt instance.
sources	Bitmask of interrupts to enable.

RTT_GetStatus()

uint32_t RTT_GetStatus

(

Rtt *

rtt

)

Returns the status register value of the given RTT.

Parameters

rtt	Pointer to an Rtt instance.

RTT_GetTime()

uint32_t RTT_GetTime

(

Rtt *

rtt

)

Returns the current value of the RTT timer value.

Parameters

rtt	Pointer to a Rtt instance.

RTT_SetAlarm()

void RTT_SetAlarm	(	Rtt *	pRtt,
		uint32_t	time
	)

Configures the RTT to generate an alarm at the given time.

Parameters

pRtt	Pointer to an Rtt instance.
time	Alarm time.

RTT_SetPrescaler()

void RTT_SetPrescaler	(	Rtt *	rtt,
		uint16_t	prescaler
	)

Changes the prescaler value of the given RTT and restarts it.

Note

This function disables RTT interrupt sources.

Parameters

rtt	Pointer to a Rtt instance.
prescaler	Prescaler value for the RTT.