PWM device configuration. More...

Detailed Description

PWM device configuration.

PWM configuration.

PWM device configuration data structure.

PWM configuration options.

Each device supports up to 4 channels. If you want to use less than 4 channels, just set the unused pins to GPIO_UNDEF.

Note: define unused pins only from right to left, so the defined channels always start with channel 0 to x and the undefined ones are from x+1 to PWM_CHANNELS.

Warning: All the channels not in active use must be set to GPIO_UNDEF; just initializing fewer members of pin would insert a 0 value, which would be interpreted as the P0.00 pin that's then driven.

Definition at line 153 of file periph_cpu_common.h.

#include <periph_cpu.h>

Data Fields
mini_timer_t *	dev
	Timer used.

gpio_t	pin_ch [2]
	Output Pins.

timer_div_t	div
	Timer divider mask.

TIMER_TypeDef *	dev
	TIMER device used.

CMU_Clock_TypeDef	cmu
	the device CMU channel

IRQn_Type	irq
	the devices base IRQ channel

uint8_t	channels
	the number of available channels

const pwm_chan_conf_t *	channel
	pointer to first channel config

NRF_PWM_Type *	dev
	PWM device descriptor.

gpio_t	pin [PWM_CHANNELS]
	PWM out pins. More...

tc_tcc_cfg_t	tim
	timer configuration

const pwm_conf_chan_t *	chan
	channel configuration

uint8_t	chan_numof
	number of channels More...

uint8_t	gclk_src
	GCLK source which clocks TIMER.

TIM_TypeDef *	dev
	Timer used.

uint32_t	rcc_mask
	bit in clock enable register

pwm_chan_t	chan [TIMER_CHANNEL_NUMOF]
	channel mapping set to {GPIO_UNDEF, 0} if not used

gpio_af_t	af
	alternate function used

uint8_t	bus
	APB bus.

TPM_Type *	tpm
	used TPM

struct {
gpio_t pin
	GPIO pin used, set to GPIO_UNDEF.

uint8_t af
	alternate function mapping

uint8_t ftm_chan
	the actual FTM channel used

}	chan [PWM_CHAN_MAX]
	logical channel configuration

uint8_t	tpm_num
	FTM number used.

Field Documentation

uint8_t pwm_conf_t::chan_numof

number of channels

number of actually configured channels

Definition at line 319 of file periph_cpu_common.h.

gpio_t pwm_conf_t::pin

PWM out pins.

GPIO pin used, set to GPIO_UNDEF.

Definition at line 184 of file periph_cpu.h.

The documentation for this struct was generated from the following files: