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/** @addtogroup spi_defines
@author @htmlonly © @endhtmlonly 2011 Fergus Noble <fergusnoble@gmail.com>
*/
/*
* This file is part of the libopencm3 project.
*
* Copyright (C) 2011 Fergus Noble <fergusnoble@gmail.com>
*
* This library is free software: you can redistribute it and/or modify
* it under the terms of the GNU Lesser General Public License as published by
* the Free Software Foundation, either version 3 of the License, or
* (at your option) any later version.
*
* This library is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public License
* along with this library. If not, see <http://www.gnu.org/licenses/>.
*/
/* THIS FILE SHOULD NOT BE INCLUDED DIRECTLY, BUT ONLY VIA SPI.H
The order of header inclusion is important. spi.h includes the device
specific memorymap.h header before including this header file.*/
/** @cond */
#ifdef LIBOPENCM3_SPI_H
/** @endcond */
#pragma once
/**@{*/
#include <libopencm3/stm32/common/spi_common_all.h>
/* DFF: Data frame format */
/****************************************************************************/
/** @defgroup spi_dff SPI data frame format
@ingroup spi_defines
@{*/
#define SPI_CR1_DFF_8BIT (0 << 11)
#define SPI_CR1_DFF_16BIT (1 << 11)
/**@}*/
#define SPI_CR1_DFF (1 << 11)
/* --- Function prototypes ------------------------------------------------- */
BEGIN_DECLS
int spi_init_master(uint32_t spi, uint32_t br, uint32_t cpol, uint32_t cpha,
uint32_t dff, uint32_t lsbfirst);
void spi_set_dff_8bit(uint32_t spi);
void spi_set_dff_16bit(uint32_t spi);
END_DECLS
/** @cond */
#else
#warning "spi_common_v1.h should not be included explicitly, only via spi.h"
#endif
/** @endcond */
/**@}*/
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