idfxx::pwm Namespace Reference

Classes
class	output
	An active PWM output binding a timer, channel, and GPIO pin. More...
struct	output_config
	Output configuration parameters. More...
class	timer
	A lightweight identifier for a hardware PWM timer. More...

Enumerations
enum class	speed_mode : int { speed_mode::low_speed = 0 }
	PWM speed mode selection. More...
enum class	channel : int {   channel::ch_0 = 0 ,   channel::ch_1 ,   channel::ch_2 ,   channel::ch_3 ,   channel::ch_4 ,   channel::ch_5 }
	PWM channel slot identifiers. More...
enum class	clk_source : int { clk_source::auto_select = 0 }
	PWM timer clock source. More...
enum class	fade_mode : int {   fade_mode::no_wait = 0 ,   fade_mode::wait_done }
	Fade operation blocking mode. More...
enum class	sleep_mode : int {   sleep_mode::no_alive_no_pd = 0 ,   sleep_mode::no_alive_allow_pd ,   sleep_mode::keep_alive }
	Channel behavior during light sleep. More...

Functions
output	start (idfxx::gpio gpio, const timer &tmr, enum channel ch)
	Starts PWM output on a GPIO pin.
output	start (idfxx::gpio gpio, const timer &tmr, enum channel ch, const output_config &cfg)
	Starts PWM output on a GPIO pin with custom configuration.
output	start (idfxx::gpio gpio, const timer::config &cfg)
	Starts PWM output with automatic timer and channel allocation.
output	start (idfxx::gpio gpio, const timer::config &cfg, const output_config &out_cfg)
	Starts PWM output with automatic allocation and custom output configuration.
void	stop (enum channel ch, enum speed_mode mode=speed_mode::low_speed, idfxx::gpio::level idle_level=idfxx::gpio::level::low)
	Stops PWM output on a channel and sets it to an idle level.
result< output >	try_start (idfxx::gpio gpio, const timer &tmr, enum channel ch)
	Starts PWM output on a GPIO pin.
result< output >	try_start (idfxx::gpio gpio, const timer &tmr, enum channel ch, const output_config &cfg)
	Starts PWM output on a GPIO pin with custom configuration.
result< output >	try_start (idfxx::gpio gpio, const timer::config &cfg)
	Starts PWM output with automatic timer and channel allocation.
result< output >	try_start (idfxx::gpio gpio, const timer::config &cfg, const output_config &out_cfg)
	Starts PWM output with automatic allocation and custom output configuration.
bool	is_active (enum channel ch, enum speed_mode mode=speed_mode::low_speed)
	Returns true if the specified channel currently has an active output.
std::optional< timer >	get_timer (enum channel ch, enum speed_mode mode=speed_mode::low_speed)
	Returns the timer associated with an active channel, if any.
result< void >	try_stop (enum channel ch, enum speed_mode mode=speed_mode::low_speed, idfxx::gpio::level idle_level=idfxx::gpio::level::low)
	Stops PWM output on a channel and sets it to an idle level.

Variables
constexpr timer	timer_0 = timer_constant<0, speed_mode::low_speed>::value
constexpr timer	timer_1 = timer_constant<1, speed_mode::low_speed>::value
constexpr timer	timer_2 = timer_constant<2, speed_mode::low_speed>::value
constexpr timer	timer_3 = timer_constant<3, speed_mode::low_speed>::value