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i2c_master_bus_config_t struct
I2C master bus specific configurations
Syntax
typedef struct
{
i2c_port_num_t i2c_port;
gpio_num_t sda_io_num;
gpio_num_t scl_io_num;
union {
i2c_clock_source_t clk_source;
#if SOC_LP_I2C_SUPPORTED
lp_i2c_clock_source_t lp_source_clk;
#endif
};
uint8_t glitch_ignore_cnt;
int intr_priority;
size_t trans_queue_depth;
struct {
uint32_t enable_internal_pullup: 1;
uint32_t allow_pd: 1;
} flags;
} i2c_master_bus_config_t;
Fields
Field
Declared as
Description
I2C port number, `-1` for auto selecting, (not include LP I2C instance).
uint8_t
If the glitch period on the line is less than this value, it can be filtered out, typically value is 7 (unit: I2C module clock cycle).
int
I2C interrupt priority, if set to 0, driver will select the default priority (1,2,3).
size_t
Depth of internal transfer queue, increase this value can support more transfers pending in the background, only valid in asynchronous transaction. (Typically max_device_num * per_transaction).
I2C master config flags.
Related Functions
Found 2 other functions taking a i2c_master_bus_config_t
argument: