spi_device_interface_config_t Struct Reference

Per-device configuration. More...

#include <spi_master.h>

Data Fields
uint8_t	command_bits
uint8_t	address_bits
uint8_t	dummy_bits
uint8_t	mode
spi_clock_source_t	clock_source
uint16_t	duty_cycle_pos
uint16_t	cs_ena_pretrans
uint8_t	cs_ena_posttrans
int	clock_speed_hz
int	input_delay_ns
spi_sampling_point_t	sample_point
int	spics_io_num
uint32_t	flags
int	queue_size
transaction_cb_t	pre_cb
transaction_cb_t	post_cb

Detailed Description

Per-device configuration.

Field Documentation

command_bits

uint8_t spi_device_interface_config_t::command_bits

0-16, must be multiple of 8 in this port.

address_bits

uint8_t spi_device_interface_config_t::address_bits

0-64, must be multiple of 8 in this port.

dummy_bits

uint8_t spi_device_interface_config_t::dummy_bits

Dummy cycles, must be multiple of 8.

mode

uint8_t spi_device_interface_config_t::mode

SPI mode 0..3 (CPOL/CPHA).

clock_source

spi_clock_source_t spi_device_interface_config_t::clock_source

Clock source selector (ignored).

duty_cycle_pos

uint16_t spi_device_interface_config_t::duty_cycle_pos

Duty cycle (ignored).

cs_ena_pretrans

uint16_t spi_device_interface_config_t::cs_ena_pretrans

CS pre-transfer cycles (ignored).

cs_ena_posttrans

uint8_t spi_device_interface_config_t::cs_ena_posttrans

CS post-transfer cycles (ignored).

clock_speed_hz

int spi_device_interface_config_t::clock_speed_hz

SPI clock frequency, Hz.

input_delay_ns

int spi_device_interface_config_t::input_delay_ns

Slave input delay (ignored).

sample_point

spi_sampling_point_t spi_device_interface_config_t::sample_point

Sample-point tuning (ignored).

spics_io_num

int spi_device_interface_config_t::spics_io_num

CS GPIO – shim: CS index, or -1.

flags

uint32_t spi_device_interface_config_t::flags

SPI_DEVICE_* bits.

queue_size

int spi_device_interface_config_t::queue_size

Trans queue depth (1..N).

pre_cb

transaction_cb_t spi_device_interface_config_t::pre_cb

Pre-transfer callback (ISR context).

post_cb

transaction_cb_t spi_device_interface_config_t::post_cb

Post-transfer callback (ISR context).