neorv32_gptmr.c File Reference

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

#include <neorv32.h>

Functions
int	neorv32_gptmr_available (void)
int	neorv32_gptmr_get_num_slices (void)
void	neorv32_gptmr_setup (int prsc)
void	neorv32_gptmr_enable_single (int sel)
void	neorv32_gptmr_disable_single (int sel)
void	neorv32_gptmr_enable_mask (uint16_t mask)
void	neorv32_gptmr_disable_mask (uint16_t mask)
void	neorv32_gptmr_configure (int sel, uint32_t cnt, uint32_t thr, int mode)
int	neorv32_gptmr_irq_get (void)
void	neorv32_gptmr_irq_ack (int sel)

Detailed Description

General purpose timer (GPTMR) HW driver source file.

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, non-zero if GPTMR is available.

neorv32_gptmr_configure()

void neorv32_gptmr_configure	(	int	sel,
		uint32_t	cnt,
		uint32_t	thr,
		int	mode )

Configure timer slice.

Parameters

[in]	sel	Timer slice to enable (0..15).
[in]	cnt	Initial counter value (32-bit).
[in]	thr	Counter threshold value (32-bit).
[in]	Mode	Operation mode: 0 = continuous mode, 1 = single-shot mode.

neorv32_gptmr_disable_mask()

void neorv32_gptmr_disable_mask

(

uint16_t

mask

)

Disable multiple GPTMR timer slices.

Parameters

[in]

mask

Bit mask, one bit for each slice; bit set = disable slice.

neorv32_gptmr_disable_single()

void neorv32_gptmr_disable_single

(

int

sel

)

Disable single GPTMR timer slice.

Parameters

[in]

sel

Timer slice to disable (0..15).

neorv32_gptmr_enable_mask()

void neorv32_gptmr_enable_mask

(

uint16_t

mask

)

Disable multiple GPTMR timer slices.

Parameters

[in]

mask

Bit mask, one bit for each slice; bit set = enable slice.

neorv32_gptmr_enable_single()

void neorv32_gptmr_enable_single

(

int

sel

)

Disable single GPTMR timer slice.

Parameters

[in]

sel

Timer slice to enable (0..15).

neorv32_gptmr_get_num_slices()

int neorv32_gptmr_get_num_slices

(

void

)

Get number of implemented GPTMR timer slices.

Returns

Number of implemented GPTMR slices (0..16).

neorv32_gptmr_irq_ack()

void neorv32_gptmr_irq_ack

(

int

sel

)

Clear pending timer interrupt.

Parameters

[in]

sel

Timer slice interrupt to acknowledge/clear (0..15); no pending interrupt is cleared if an other value is provided).

neorv32_gptmr_irq_get()

int neorv32_gptmr_irq_get

(

void

)

Get highest-priority pending interrupt.

Returns

Id of highest-priority pending slice interrupt (0..15). -1 if no interrupt is pending.

neorv32_gptmr_setup()

void neorv32_gptmr_setup

(

int

prsc

)

Reset module and configure GPTMR global clock prescaler.

Parameters

[in]

prsc

Clock prescaler select (0..7). See NEORV32_CLOCK_PRSC_enum.