#include "Adafruit_MCP23017.h"
#include <driver/gpio.h>
#include <driver/i2c.h>
#include <stdint.h>

Macros
#define	MCP23017_IODIRA 0x00

#define	MCP23017_IPOLA 0x02

#define	MCP23017_GPINTENA 0x04

#define	MCP23017_DEFVALA 0x06

#define	MCP23017_INTCONA 0x08

#define	MCP23017_IOCONA 0x0A

#define	MCP23017_GPPUA 0x0C

#define	MCP23017_INTFA 0x0E

#define	MCP23017_INTCAPA 0x10

#define	MCP23017_GPIOA 0x12

#define	MCP23017_OLATA 0x14

#define	MCP23017_IODIRB 0x01

#define	MCP23017_IPOLB 0x03

#define	MCP23017_GPINTENB 0x05

#define	MCP23017_DEFVALB 0x07

#define	MCP23017_INTCONB 0x09

#define	MCP23017_IOCONB 0x0B

#define	MCP23017_GPPUB 0x0D

#define	MCP23017_INTFB 0x0F

#define	MCP23017_INTCAPB 0x11

#define	MCP23017_GPIOB 0x13

#define	MCP23017_OLATB 0x15

#define	MCP23017_INT_ERR 255

Functions
static int	bitRead (uint32_t x, uint8_t n)

static uint32_t	bitWrite (uint32_t x, uint8_t n, uint8_t b)

Macro Definition Documentation

◆ MCP23017_DEFVALA

#define MCP23017_DEFVALA 0x06

◆ MCP23017_DEFVALB

#define MCP23017_DEFVALB 0x07

◆ MCP23017_GPINTENA

#define MCP23017_GPINTENA 0x04

◆ MCP23017_GPINTENB

#define MCP23017_GPINTENB 0x05

◆ MCP23017_GPIOA

#define MCP23017_GPIOA 0x12

◆ MCP23017_GPIOB

#define MCP23017_GPIOB 0x13

◆ MCP23017_GPPUA

#define MCP23017_GPPUA 0x0C

◆ MCP23017_GPPUB

#define MCP23017_GPPUB 0x0D

◆ MCP23017_INT_ERR

#define MCP23017_INT_ERR 255

◆ MCP23017_INTCAPA

#define MCP23017_INTCAPA 0x10

◆ MCP23017_INTCAPB

#define MCP23017_INTCAPB 0x11

◆ MCP23017_INTCONA

#define MCP23017_INTCONA 0x08

◆ MCP23017_INTCONB

#define MCP23017_INTCONB 0x09

◆ MCP23017_INTFA

#define MCP23017_INTFA 0x0E

◆ MCP23017_INTFB

#define MCP23017_INTFB 0x0F

◆ MCP23017_IOCONA

#define MCP23017_IOCONA 0x0A

◆ MCP23017_IOCONB

#define MCP23017_IOCONB 0x0B

◆ MCP23017_IODIRA

#define MCP23017_IODIRA 0x00

◆ MCP23017_IODIRB

#define MCP23017_IODIRB 0x01

◆ MCP23017_IPOLA

#define MCP23017_IPOLA 0x02

◆ MCP23017_IPOLB

#define MCP23017_IPOLB 0x03

◆ MCP23017_OLATA

#define MCP23017_OLATA 0x14

◆ MCP23017_OLATB

#define MCP23017_OLATB 0x15

Function Documentation

◆ bitRead()

static int bitRead	(	uint32_t	x,
		uint8_t	n
	)

static

◆ bitWrite()

static uint32_t bitWrite	(	uint32_t	x,
		uint8_t	n,
		uint8_t	b
	)