dotnfc Tang / LibPN532

PN532 Driver library This library provides an abstract API to drive the pn532 nfc chip, with I2C/HSU/SPI interface. Its based on the Seeed Studio's Arduino version.

Dependents:   PN532_ReadUid Nfctest2

SPIClass.h

Committer:
dotnfc
Date:
2016-09-13
Revision:
0:db8030e71f55

File content as of revision 0:db8030e71f55:

/*
 * 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 <stdio.h>
#include <Arduino.h>


#define SPI_CLOCK_DIV2     SPI_BaudRatePrescaler_2  
#define SPI_CLOCK_DIV4     SPI_BaudRatePrescaler_4  
#define SPI_CLOCK_DIV8     SPI_BaudRatePrescaler_8  
#define SPI_CLOCK_DIV16    SPI_BaudRatePrescaler_16 
#define SPI_CLOCK_DIV32    SPI_BaudRatePrescaler_32 
#define SPI_CLOCK_DIV64    SPI_BaudRatePrescaler_64 
#define SPI_CLOCK_DIV128   SPI_BaudRatePrescaler_128
#define SPI_CLOCK_DIV256   SPI_BaudRatePrescaler_256

#define SPI_MODE0 0x00
#define SPI_MODE1 0x04
#define SPI_MODE2 0x08
#define SPI_MODE3 0x0C


class SPIClass {
public:
  uint8_t transfer(uint8_t _data);

  // SPI Configuration methods

  inline static void attachInterrupt();
  inline static void detachInterrupt(); // Default

  void begin(); // Default
  void end();

  void setBitOrder(uint8_t);
  void setDataMode(uint8_t);
  void setClockDivider(uint8_t);
private:
  SPI_TypeDef *spi;
  SPI_InitTypeDef SPI_InitStructure;
  uint16_t bitOrder;
};

extern SPIClass SPI;



#endif