neorv32_pwm.h File Reference

Pulse-Width Modulation Controller (PWM) HW driver header file. More...

#include <stdint.h>

Go to the source code of this file.

Data Structures
struct	neorv32_pwm_t

Macros
IO Device: Pulse Width Modulation Controller (PWM)
#define	NEORV32_PWM   ((neorv32_pwm_t*) (NEORV32_PWM_BASE))

Functions
Prototypes
int	neorv32_pwm_available (void)
int	neorv32_pmw_get_num_channels (void)
void	neorv32_pwm_set_clock (int prsc)
void	neorv32_pwm_ch_enable_mask (uint32_t mask)
void	neorv32_pwm_ch_disable_mask (uint32_t mask)
void	neorv32_pwm_ch_enable_single (int ch)
void	neorv32_pwm_ch_disable_single (int ch)
void	neorv32_pwm_ch_setup (int ch, int top, int pol)
void	neorv32_pwm_ch_set_duty (int ch, int duty)

Detailed Description

Pulse-Width Modulation Controller (PWM) HW driver header file.

Macro Definition Documentation

NEORV32_PWM

#define NEORV32_PWM   ((neorv32_pwm_t*) (NEORV32_PWM_BASE))

PWM module hardware handle (neorv32_pwm_t)

Function Documentation

neorv32_pmw_get_num_channels()

int neorv32_pmw_get_num_channels

(

void

)

Get number of implemented PWM channels.

Warning

This function overrides the POLARITY register.

Returns

Number of implemented PWM channels.

neorv32_pwm_available()

int neorv32_pwm_available

(

void

)

Check if PWM unit was synthesized.

Returns

0 if PWM was not synthesized, non-zero if PWM is available.

neorv32_pwm_ch_disable_mask()

void neorv32_pwm_ch_disable_mask

(

uint32_t

mask

)

Disable PWM channel using bit mask.

Parameters

[in]

mask

Channel bit mask (16 bits).

neorv32_pwm_ch_disable_single()

void neorv32_pwm_ch_disable_single

(

int

ch

)

Disable individual PWM channel using bit mask.

Parameters

[in]

ch

Channel select (0..16).

neorv32_pwm_ch_enable_mask()

void neorv32_pwm_ch_enable_mask

(

uint32_t

mask

)

Enable PWM channel using bit mask.

Parameters

[in]

mask

Channel bit mask (16 bits).

neorv32_pwm_ch_enable_single()

void neorv32_pwm_ch_enable_single

(

int

ch

)

Enable individual PWM channel.

Parameters

[in]

ch

Channel select (0..16).

neorv32_pwm_ch_set_duty()

void neorv32_pwm_ch_set_duty	(	int	ch,
		int	duty )

Set PWM channel's duty cycle.

Parameters

[in]	ch	Channel select (0..15).
[in]	duty	Duty cycle (16-bit).

neorv32_pwm_ch_setup()

void neorv32_pwm_ch_setup	(	int	ch,
		int	top,
		int	pol )

Configure a single channel's wrap value and polarity.

Parameters

[in]	ch	Channel select (0..15).
[in]	top	Wrap value for PWM counter (16-bit).
[in]	pol	Idle polarity of PWM output (0 or 1).

neorv32_pwm_set_clock()

void neorv32_pwm_set_clock

(

int

prsc

)

Set global PWM counter clock prescaler.

Parameters

[in]

prsc

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