struct_ConfigMasterI2C Struct Reference

The configuration data of I2C interface used as Master. More...

#include <hw_i2c.h>

Collaboration diagram for struct_ConfigMasterI2C:

Public Attributes
i2c_inst_t *	i2c = i2c0
	the I2C interface used in the rp2040: i2c0 or i2c1
uint	sda_pin = 04
	the associated gpio pin for data
uint	scl_pin = 05
	the associated gpio pin for clock
uint	baud_rate = 100 * 1000
	the I2C baudrate:
irq_handler_t	i2c_tx_master_handler = NULL
	a function pointer to the IRQ i2c_master_exclusive_handler, to the program that manage the I2C IRQ when used with DMA

Detailed Description

The configuration data of I2C interface used as Master.

Member Data Documentation

baud_rate

uint struct_ConfigMasterI2C::baud_rate = 100 * 1000

the I2C baudrate:

• I2C_STANDARD_MODE = 100kb/s
• I2C_FAST_MODE = 400kb/s
• I2C_FAST_MODE_PLUS = 1Mb/s

i2c_tx_master_handler

irq_handler_t struct_ConfigMasterI2C::i2c_tx_master_handler = NULL

a function pointer to the IRQ i2c_master_exclusive_handler, to the program that manage the I2C IRQ when used with DMA

NOTICE: This i2c_master_exclusive_handler is the one given to NVIC IRQ map. It seems that it must be a static function defined in the main code.

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

• hw_i2c.h