mirror of
https://github.com/RobTillaart/Arduino.git
synced 2024-10-03 18:09:02 -04:00
107 lines
2.3 KiB
C++
107 lines
2.3 KiB
C++
#pragma once
|
|
//
|
|
// FILE: PCA9552.h
|
|
// AUTHOR: Rob Tillaart
|
|
// DATE: 2023-07-17
|
|
// VERSION: 0.3.1
|
|
// PURPOSE: Arduino library for for I2C PCA9552 16 channel PWM
|
|
// URL: https://github.com/RobTillaart/PCA9552
|
|
|
|
|
|
#include "Arduino.h"
|
|
#include "Wire.h"
|
|
|
|
|
|
#define PCA9552_LIB_VERSION (F("0.3.1"))
|
|
|
|
|
|
// REGISTERS
|
|
#define PCA9552_INPUT0 0x00
|
|
#define PCA9552_INPUT1 0x01
|
|
#define PCA9552_PSC0 0x02
|
|
#define PCA9552_PWM0 0x03
|
|
#define PCA9552_PSC1 0x04
|
|
#define PCA9552_PWM1 0x05
|
|
#define PCA9552_LS0 0x06
|
|
#define PCA9552_LS1 0x07
|
|
#define PCA9552_LS2 0x08
|
|
#define PCA9552_LS3 0x09
|
|
|
|
|
|
// MUX OUTPUT MODES
|
|
#define PCA9552_MODE_LOW 0
|
|
#define PCA9552_MODE_HIGH 1
|
|
#define PCA9552_MODE_PWM0 2
|
|
#define PCA9552_MODE_PWM1 3
|
|
|
|
|
|
// ERROR CODES (not all used yet)
|
|
#define PCA9552_OK 0x00
|
|
#define PCA9552_ERROR 0xFF
|
|
#define PCA9552_ERR_WRITE 0xFE
|
|
#define PCA9552_ERR_CHAN 0xFD
|
|
#define PCA9552_ERR_MODE 0xFC
|
|
#define PCA9552_ERR_REG 0xFB
|
|
#define PCA9552_ERR_I2C 0xFA
|
|
|
|
|
|
/////////////////////////////////////////////////////
|
|
//
|
|
// CLASS PCA9552
|
|
//
|
|
class PCA9552
|
|
{
|
|
public:
|
|
explicit PCA9552(const uint8_t deviceAddress, TwoWire *wire = &Wire);
|
|
|
|
bool begin();
|
|
bool isConnected();
|
|
uint8_t reset();
|
|
|
|
uint8_t getAddress();
|
|
uint8_t outputCount();
|
|
|
|
// GPIO
|
|
uint16_t getInput();
|
|
void pinMode1(uint8_t pin, uint8_t mode);
|
|
void write1(uint8_t pin, uint8_t value);
|
|
uint8_t read1(uint8_t pin);
|
|
|
|
// PRESCALERS
|
|
void setPrescaler(uint8_t generator, uint8_t prescaler = 0);
|
|
uint8_t getPrescaler(uint8_t generator);
|
|
|
|
// PWM
|
|
void setPWM(uint8_t generator, uint8_t pwm = 128);
|
|
uint8_t getPWM(uint8_t generator);
|
|
|
|
|
|
// OUTPUT MODE - MUX SELECTION
|
|
// pin: 0..3
|
|
// mode:
|
|
// 0 = output is set LOW (LED on)
|
|
// 1 = output is set high-impedance (LED off; default)
|
|
// 2 = output blinks at PWM0 rate
|
|
// 3 = output blinks at PWM1 rate
|
|
uint8_t setOutputMode(uint8_t pin, uint8_t mode);
|
|
uint8_t getOutputMode(uint8_t pin);
|
|
|
|
// ERROR
|
|
uint8_t getLastError();
|
|
|
|
|
|
private:
|
|
uint8_t writeReg(uint8_t reg, uint8_t value);
|
|
uint8_t readReg(uint8_t reg);
|
|
|
|
uint8_t _address;
|
|
uint8_t _outputCount;
|
|
uint8_t _error;
|
|
|
|
TwoWire* _wire;
|
|
};
|
|
|
|
|
|
// -- END OF FILE --
|
|
|