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1 | /*
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2 | * Copyright (c) 2010 by Cristian Maglie <c.maglie@bug.st>
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3 | * SPI Master library for arduino.
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4 | *
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5 | * This file is free software; you can redistribute it and/or modify
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6 | * it under the terms of either the GNU General Public License version 2
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7 | * or the GNU Lesser General Public License version 2.1, both as
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8 | * published by the Free Software Foundation.
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9 | */
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10 |
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11 | #ifndef _SPI_H_INCLUDED
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12 | #define _SPI_H_INCLUDED
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13 |
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14 | #include "variant.h"
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15 | #include "wiring_constants.h"
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16 |
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17 | #define SPI_MODE0 0x02
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18 | #define SPI_MODE1 0x00
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19 | #define SPI_MODE2 0x03
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20 | #define SPI_MODE3 0x01
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21 |
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22 | class SPIClass {
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23 | public:
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24 | SPIClass(SERCOM *p_sercom, uint8_t uc_pinMISO, uint8_t uc_pinSCK, uint8_t uc_pinMOSI);
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25 |
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26 | byte transfer(uint8_t data);
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27 |
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28 | // SPI Configuration methods
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29 | void attachInterrupt();
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30 | void detachInterrupt();
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31 |
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32 | void begin();
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33 | void end();
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34 |
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35 | void setBitOrder(BitOrder order);
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36 | void setDataMode(uint8_t uc_mode);
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37 | void setClockDivider(uint8_t uc_div);
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38 |
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39 | private:
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40 | SERCOM *_p_sercom;
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41 | uint8_t _uc_pinMiso;
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42 | uint8_t _uc_pinMosi;
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43 | uint8_t _uc_pinSCK;
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44 | };
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45 |
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46 | #if SPI_INTERFACES_COUNT > 0
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47 | extern SPIClass SPI;
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48 | #endif
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49 |
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50 | #endif
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