i2c_master_bus_config_t Struct Reference

I2C master bus configuration. More...

#include <i2c_master.h>

Data Fields
i2c_clock_source_t	clk_source
i2c_port_num_t	i2c_port
gpio_num_t	scl_io_num
gpio_num_t	sda_io_num
uint8_t	glitch_ignore_cnt
int	intr_priority
size_t	trans_queue_depth
struct {
uint32_t   enable_internal_pullup: 1
}	flags

Detailed Description

I2C master bus configuration.

Note

sda_io_num / scl_io_num / glitch_ignore_cnt / intr_priority / flags.enable_internal_pullup are accepted for source compatibility but ignored: pin routing and interrupt priority are managed by the underlying VSF HAL driver.

Field Documentation

clk_source

i2c_clock_source_t i2c_master_bus_config_t::clk_source

Clock source (ignored)

i2c_port

i2c_port_num_t i2c_master_bus_config_t::i2c_port

Port number, or -1 = auto

scl_io_num

gpio_num_t i2c_master_bus_config_t::scl_io_num

SCL GPIO (ignored)

sda_io_num

gpio_num_t i2c_master_bus_config_t::sda_io_num

SDA GPIO (ignored)

glitch_ignore_cnt

uint8_t i2c_master_bus_config_t::glitch_ignore_cnt

Glitch filter (ignored)

intr_priority

int i2c_master_bus_config_t::intr_priority

ISR priority (ignored)

trans_queue_depth

size_t i2c_master_bus_config_t::trans_queue_depth

Async queue depth (unused)

enable_internal_pullup

uint32_t i2c_master_bus_config_t::enable_internal_pullup

Pull-up (ignored)

[struct]

struct { ... } i2c_master_bus_config_t::flags