mirror of
https://github.com/mist-devel/mist-board.git
synced 2026-04-28 05:05:53 +00:00
70 lines
2.2 KiB
C
70 lines
2.2 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.
|
||
//
|
||
/// \ingroup driver_avr
|
||
/// \defgroup spi SPI (Serial Peripheral Interface) Function Library (spi.c)
|
||
/// \code #include "spi.h" \endcode
|
||
/// \par Overview
|
||
/// Provides basic byte and word transmitting and receiving via the AVR
|
||
/// SPI interface. Due to the nature of SPI, every SPI communication operation
|
||
/// is both a transmit and simultaneous receive.
|
||
///
|
||
/// \note Currently, only MASTER mode is supported.
|
||
//
|
||
// ----------------------------------------------------------------------------
|
||
// 17.8.2008
|
||
// Bob!k & Raster, C.P.U.
|
||
// Original code was modified especially for the SDrive device.
|
||
// Some parts of code have been added, removed, rewrited or optimized due to
|
||
// lack of MCU AVR Atmega8 memory.
|
||
// ----------------------------------------------------------------------------
|
||
//
|
||
// 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 "integer.h"
|
||
|
||
// function prototypes
|
||
void mmcChipSelect(int select);
|
||
|
||
void set_spi_clock_freq();
|
||
|
||
// SPI interface initializer
|
||
void spiInit(void);
|
||
|
||
// 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).
|
||
u08 spiTransferFF();
|
||
void spiTransferTwoFF();
|
||
void spiTx1(int i);
|
||
|
||
void spiDisplay(int i);
|
||
|
||
void spiReceiveData(u08 * from, u08 * to);
|
||
|
||
#endif
|