State of one PPM output: its pin, PIO state machine and DMA channels. More...

Data Fields
bool	used
bool	running
uint8_t	pin
uint8_t	channels
uint16_t	frame_us
PIO	pio
uint	sm
uint	offset
int	dma_data
int	dma_ctrl
dma_channel_config	cfg_data
dma_channel_config	cfg_ctrl
uint32_t	buf [PPM_MAX_RUNS]
uint32_t	words
uint16_t	last_us [PPM_MAX_CHANNELS]
bool	have_last
const uint32_t *	restart

Detailed Description

State of one PPM output: its pin, PIO state machine and DMA channels.

Field Documentation

◆ buf

uint32_t ppm_out_t::buf[PPM_MAX_RUNS]

run counts, see RUN_TO_COUNT()

◆ cfg_ctrl

dma_channel_config ppm_out_t::cfg_ctrl

the control channel's configuration

◆ cfg_data

dma_channel_config ppm_out_t::cfg_data

the data channel's configuration

◆ channels

uint8_t ppm_out_t::channels

channels the frame carries

◆ dma_ctrl

int ppm_out_t::dma_ctrl

control channel: restarts the data channel

◆ dma_data

int ppm_out_t::dma_data

data channel: plays the run counts

◆ frame_us

uint16_t ppm_out_t::frame_us

frame length, in us

◆ offset

uint ppm_out_t::offset

program offset in the PIO instruction memory

◆ pin

uint8_t ppm_out_t::pin

GPIO pin number

◆ pio

PIO ppm_out_t::pio

PIO block

◆ running

bool ppm_out_t::running

a frame is being played

◆ sm

uint ppm_out_t::sm

state machine index

◆ used

bool ppm_out_t::used

slot is bound to a pin

◆ words

uint32_t ppm_out_t::words

runs in buf

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

protocols/ppm/rp2350/out_ppm.c

Data Fields