mirror of
https://github.com/arduino/Arduino.git
synced 2024-12-13 23:48:46 +01:00
73 lines
1.8 KiB
C++
73 lines
1.8 KiB
C++
/*
|
|
* Copyright (c) 2010 by Cristian Maglie <c.maglie@bug.st>
|
|
* SPI Master library for arduino.
|
|
*
|
|
* This file is free software; you can redistribute it and/or modify
|
|
* it under the terms of either the GNU General Public License version 2
|
|
* or the GNU Lesser General Public License version 2.1, both as
|
|
* published by the Free Software Foundation.
|
|
*/
|
|
|
|
#ifndef _SPI_H_INCLUDED
|
|
#define _SPI_H_INCLUDED
|
|
|
|
#include "variant.h"
|
|
#include <stdio.h>
|
|
|
|
#define SPI_MODE0 0x02
|
|
#define SPI_MODE1 0x00
|
|
#define SPI_MODE2 0x03
|
|
#define SPI_MODE3 0x01
|
|
|
|
enum SPITransferMode {
|
|
SPI_CONTINUE,
|
|
SPI_LAST
|
|
};
|
|
|
|
class SPIClass {
|
|
public:
|
|
SPIClass(Spi *_spi, uint32_t _id, void(*_initCb)(void));
|
|
|
|
byte transfer(uint8_t _data, SPITransferMode _mode = SPI_LAST) { return transfer(BOARD_SPI_DEFAULT_SS, _data, _mode); }
|
|
byte transfer(byte _channel, uint8_t _data, SPITransferMode _mode = SPI_LAST);
|
|
|
|
// SPI Configuration methods
|
|
|
|
void attachInterrupt(void);
|
|
void detachInterrupt(void);
|
|
|
|
void begin(void);
|
|
void end(void);
|
|
|
|
// Attach/Detach pin to/from SPI controller
|
|
void begin(uint8_t _pin);
|
|
void end(uint8_t _pin);
|
|
|
|
// These methods sets a parameter on a single pin
|
|
void setBitOrder(uint8_t _pin, BitOrder);
|
|
void setDataMode(uint8_t _pin, uint8_t);
|
|
void setClockDivider(uint8_t _pin, uint8_t);
|
|
|
|
// These methods sets the same parameters but on default pin BOARD_SPI_DEFAULT_SS
|
|
void setBitOrder(BitOrder _order) { setBitOrder(BOARD_SPI_DEFAULT_SS, _order); };
|
|
void setDataMode(uint8_t _mode) { setDataMode(BOARD_SPI_DEFAULT_SS, _mode); };
|
|
void setClockDivider(uint8_t _div) { setClockDivider(BOARD_SPI_DEFAULT_SS, _div); };
|
|
|
|
private:
|
|
void init();
|
|
|
|
Spi *spi;
|
|
uint32_t id;
|
|
BitOrder bitOrder[SPI_CHANNELS_NUM];
|
|
uint32_t divider[SPI_CHANNELS_NUM];
|
|
uint32_t mode[SPI_CHANNELS_NUM];
|
|
void (*initCb)(void);
|
|
bool initialized;
|
|
};
|
|
|
|
#if SPI_INTERFACES_COUNT > 0
|
|
extern SPIClass SPI;
|
|
#endif
|
|
|
|
#endif
|