neorv32_gptmr.c File Reference

General purpose timer (GPTMR) HW driver source file. More...

#include <neorv32.h>

Functions
int	neorv32_gptmr_available (void)
void	neorv32_gptmr_setup (int prsc, uint32_t threshold, int cont_mode)
void	neorv32_gptmr_disable (void)
void	neorv32_gptmr_enable (void)
void	neorv32_gptmr_irq_ack (void)

Detailed Description

General purpose timer (GPTMR) HW driver source file.

Note

These functions should only be used if the GPTMR unit was synthesized (IO_GPTMR_EN = true).

See also

https://stnolting.github.io/neorv32/sw/files.html

Function Documentation

neorv32_gptmr_available()

int neorv32_gptmr_available

(

void

)

Check if general purpose timer unit was synthesized.

Returns

0 if GPTMR was not synthesized, 1 if GPTMR is available.

neorv32_gptmr_disable()

void neorv32_gptmr_disable

(

void

)

Disable general purpose timer.

neorv32_gptmr_enable()

void neorv32_gptmr_enable

(

void

)

Enable general purpose timer.

neorv32_gptmr_irq_ack()

void neorv32_gptmr_irq_ack

(

void

)

Clear pending timer interrupt.

neorv32_gptmr_setup()

void neorv32_gptmr_setup	(	int	prsc,
		uint32_t	threshold,
		int	cont_mode )

Reset, enable and configure general purpose timer.

Parameters

[in]	prsc	Clock prescaler select (0..7). See NEORV32_CLOCK_PRSC_enum.
[in]	threshold	Threshold value, counter will reset to zero when reaching this.
[in]	cont_mode	Set to operate timer in continuous mode (instead of single-shot mode).