Default configuration for Texas Instruments PCF857X I2C I/O expanders. More...

Detailed Description

Default configuration for Texas Instruments PCF857X I2C I/O expanders.

Author: Gunar Schorcht gunar.nosp@m.@sch.nosp@m.orcht.nosp@m..net

#include "board.h"
#include "pcf857x.h"
#include "saul_reg.h"
#include "saul/periph.h"

Include dependency graph for pcf857x_params.h:

Variables
static const pcf857x_params_t	pcf857x_params []
	Allocate some memory to store the actual configuration.

static const pcf857x_saul_gpio_params_t	pcf857x_saul_gpio_params []
	Additional meta information to keep in the SAUL registry.

Set default configuration parameters
#define	PCF857X_PARAM_DEV I2C_DEV(0)
	device is I2C_DEV(0)

#define	PCF857X_PARAM_ADDR (0)
	I2C slave address offset is 0.

#define	PCF857X_PARAM_EXP (PCF857X_EXP_PCF8575)
	PCF857X expander variant used depends on enabled pseudomodules.

#define	PCF857X_PARAM_INT_PIN (GPIO_UNDEF)
	MCU interrupt pin.

#define	PCF857X_PARAMS
	Default configuration parameter set.

#define	PCF857X_SAUL_GPIO_PARAMS
	Example for mapping expander pins to SAUL.

Macro Definition Documentation

◆ PCF857X_PARAM_ADDR

#define PCF857X_PARAM_ADDR (0)

I2C slave address offset is 0.

Definition at line 40 of file pcf857x_params.h.

◆ PCF857X_PARAM_DEV

#define PCF857X_PARAM_DEV I2C_DEV(0)

device is I2C_DEV(0)

Definition at line 35 of file pcf857x_params.h.

◆ PCF857X_PARAM_EXP

#define PCF857X_PARAM_EXP (PCF857X_EXP_PCF8575)

PCF857X expander variant used depends on enabled pseudomodules.

Definition at line 46 of file pcf857x_params.h.

◆ PCF857X_PARAM_INT_PIN

#define PCF857X_PARAM_INT_PIN (GPIO_UNDEF)

MCU interrupt pin.

Definition at line 56 of file pcf857x_params.h.

◆ PCF857X_PARAMS

#define PCF857X_PARAMS

Value:

                            { \
                            .dev = PCF857X_PARAM_DEV, \
                            .addr = PCF857X_PARAM_ADDR, \
                            .exp = PCF857X_PARAM_EXP, \
                            .int_pin = PCF857X_PARAM_INT_PIN, \
                        },

Default configuration parameter set.

Definition at line 62 of file pcf857x_params.h.

◆ PCF857X_SAUL_GPIO_PARAMS

#define PCF857X_SAUL_GPIO_PARAMS

Value:

                                        { \
                                        .dev = 0, \
                                        .gpio = { \
                                            .name = "P00 Output", \
                                            .pin = PCF857X_GPIO_PIN(0, 0), \
                                            .mode = GPIO_OUT, \
                                            .flags = SAUL_GPIO_INIT_CLEAR, \
                                        } \
                                 }, \
                                 { \
                                        .dev = 0, \
                                        .gpio = { \
                                            .name = "P01 Input", \
                                            .pin = PCF857X_GPIO_PIN(0, 1), \
                                            .mode = GPIO_IN, \
                                            .flags = 0, \
                                        } \
                                 },

Example for mapping expander pins to SAUL.

Definition at line 79 of file pcf857x_params.h.

Variable Documentation

◆ pcf857x_params

const pcf857x_params_t pcf857x_params[]

static

Initial value:

=
{
    PCF857X_PARAMS
}

Allocate some memory to store the actual configuration.

Definition at line 103 of file pcf857x_params.h.

◆ pcf857x_saul_gpio_params

const pcf857x_saul_gpio_params_t pcf857x_saul_gpio_params[]