neorv32_pwm.h File Reference

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

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Functions
int	neorv32_pwm_available (void)
void	neorv32_pwm_setup (uint8_t prsc)
void	neorv32_pwm_disable (void)
void	neorv32_pwm_enable (void)
int	neorv32_pmw_get_num_channels (void)
void	neorv32_pwm_set (uint8_t channel, uint8_t duty)
uint8_t	neorv32_pwm_get (uint8_t channel)

Detailed Description

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

Note

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

Function Documentation

neorv32_pmw_get_num_channels()

int neorv32_pmw_get_num_channels

(

void

)

Get number of implemented channels.

Warning

This function will override all duty cycle configuration registers.

Returns

Number of implemented channels.

neorv32_pwm_available()

int neorv32_pwm_available

(

void

)

Check if PWM unit was synthesized.

Returns

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

neorv32_pwm_disable()

void neorv32_pwm_disable

(

void

)

Disable pulse width modulation controller.

neorv32_pwm_enable()

void neorv32_pwm_enable

(

void

)

Enable pulse width modulation controller.

neorv32_pwm_get()

uint8_t neorv32_pwm_get

(

uint8_t

channel

)

Get duty cycle from channel.

Parameters

[in]

channel

Channel select (0..59).

Returns

Duty cycle (0..255) of channel 'channel'.

neorv32_pwm_set()

void neorv32_pwm_set	(	uint8_t	channel,
		uint8_t	duty
	)

Set duty cycle for channel.

Parameters

[in]	channel	Channel select (0..59).
[in]	duty	Duty cycle (0..255).

neorv32_pwm_setup()

void neorv32_pwm_setup

(

uint8_t

prsc

)

Enable and configure pulse width modulation controller. The PWM control register bits are listed in NEORV32_PWM_CTRL_enum.

Parameters

[in]

prsc

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