This is the configuration structure for the I2C Master device. It is used as an argument for i2c_master_init to provide the desired configurations for the module. The structure should be initialized using the i2c_master_get_config_defaults.
| Type | Name | Description |
|---|---|---|
| uint32_t | baud_rate |
Baud rate (in KHz) for I2C operations in standard-mode, Fast-mode, and Fast-mode Plus Transfers, i2c_master_baud_rate |
| uint32_t | baud_rate_high_speed |
Baud rate (in KHz) for I2C operations in High-speed mode, i2c_master_baud_rate |
| uint16_t | buffer_timeout |
Timeout for packet write to wait for slave |
| enum gclk_generator | generator_source |
GCLK generator to use as clock source |
| enum i2c_master_inactive_timeout | inactive_timeout |
Inactive bus time out |
| bool | master_scl_low_extend_timeout |
Set to enable maser SCL low extend time-out |
| uint32_t | pinmux_pad0 |
PAD0 (SDA) pinmux |
| uint32_t | pinmux_pad1 |
PAD1 (SCL) pinmux |
| bool | run_in_standby |
Set to keep module active in sleep modes |
| bool | scl_low_timeout |
Set to enable SCL low time-out |
| bool | scl_stretch_only_after_ack_bit |
Set to enable SCL stretch only after ACK bit (required for high speed) |
| uint16_t | sda_scl_rise_time_ns |
Get more accurate BAUD, considering rise time(required for standard-mode and Fast-mode) |
| bool | slave_scl_low_extend_timeout |
Set to enable slave SCL low extend time-out |
| enum i2c_master_start_hold_time | start_hold_time |
Bus hold time after start signal on data line |
| enum i2c_master_transfer_speed | transfer_speed |
Transfer speed mode |
| uint16_t | unknown_bus_state_timeout |
Unknown bus state timeout |