mirror of
https://github.com/arduino/Arduino.git
synced 2024-11-30 11:24:12 +01:00
47 lines
1.5 KiB
C
47 lines
1.5 KiB
C
|
/*! \file spi.h \brief SPI interface driver. */
|
||
|
|
//*****************************************************************************
|
||
|
|
//
|
||
|
|
// File Name : 'spi.h'
|
||
|
|
// Title : SPI interface driver
|
||
|
|
// Author : Pascal Stang - Copyright (C) 2000-2002
|
||
|
|
// Created : 11/22/2000
|
||
|
|
// Revised : 06/06/2002
|
||
|
|
// Version : 0.6
|
||
|
|
// Target MCU : Atmel AVR series
|
||
|
|
// Editor Tabs : 4
|
||
|
|
//
|
||
|
|
// NOTE: This code is currently below version 1.0, and therefore is considered
|
||
|
|
// to be lacking in some functionality or documentation, or may not be fully
|
||
|
|
// tested. Nonetheless, you can expect most functions to work.
|
||
|
|
//
|
||
|
|
// This code is distributed under the GNU Public License
|
||
|
|
// which can be found at http://www.gnu.org/licenses/gpl.txt
|
||
|
|
//
|
||
|
|
//*****************************************************************************
|
||
|
|
|
||
|
|
#ifndef SPI_H
|
||
|
|
#define SPI_H
|
||
|
|
|
||
|
|
#include "global.h"
|
||
|
|
|
||
|
|
// function prototypes
|
||
|
|
|
||
|
|
// SPI interface initializer
|
||
|
|
void spiInit(void);
|
||
|
|
|
||
|
|
// spiSendByte(u08 data) waits until the SPI interface is ready
|
||
|
|
// and then sends a single byte over the SPI port. This command
|
||
|
|
// does not receive anything.
|
||
|
|
void spiSendByte(u08 data);
|
||
|
|
|
||
|
|
// spiTransferByte(u08 data) waits until the SPI interface is ready
|
||
|
|
// and then sends a single byte over the SPI port. The function also
|
||
|
|
// returns the byte that was received during transmission.
|
||
|
|
u08 spiTransferByte(u08 data);
|
||
|
|
|
||
|
|
// spiTransferWord(u08 data) works just like spiTransferByte but
|
||
|
|
// operates on a whole word (16-bits of data).
|
||
|
|
u16 spiTransferWord(u16 data);
|
||
|
|
|
||
|
|
#endif
|