lora-car/libopencm3/lib/stm32/common/spi_common_v1_frf.c
Arti Zirk 054740c5de git subrepo clone https://github.com/libopencm3/libopencm3.git
subrepo:
  subdir:   "libopencm3"
  merged:   "88e91c9a7cce"
upstream:
  origin:   "https://github.com/libopencm3/libopencm3.git"
  branch:   "master"
  commit:   "88e91c9a7cce"
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2023-01-21 21:54:42 +02:00

69 lines
2.0 KiB
C

/** @addtogroup spi_file SPI peripheral API
* @ingroup peripheral_apis
@author @htmlonly © @endhtmlonly 2009
Uwe Hermann <uwe@hermann-uwe.de>
@author @htmlonly &copy; @endhtmlonly 2012
Ken Sarkies <ksarkies@internode.on.net>
@author @htmlonly &copy; @endhtmlonly 2018
Guillaume Revaillot <revaillot@archos.com>
*/
/*
* This file is part of the libopencm3 project.
*
* Copyright (C) 2009 Uwe Hermann <uwe@hermann-uwe.de>
*
* 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/>.
*/
#include <libopencm3/stm32/spi.h>
/**@{*/
/*---------------------------------------------------------------------------*/
/** @brief SPI Set Frame Format to TI
@param[in] spi Unsigned int32. SPI peripheral identifier @ref spi_reg_base.
*/
void spi_set_frf_ti(uint32_t spi)
{
SPI_CR2(spi) |= SPI_CR2_FRF;
}
/*---------------------------------------------------------------------------*/
/** @brief SPI Set Frame Format to Motorola
@param[in] spi Unsigned int32. SPI peripheral identifier @ref spi_reg_base.
*/
void spi_set_frf_motorola(uint32_t spi)
{
SPI_CR2(spi) &= ~SPI_CR2_FRF;
}
#define SPI_CR2_FRF (1 << 4)
#define SPI_CR2_FRF_MOTOROLA_MODE (0 << 4)
#define SPI_CR2_FRF_TI_MODE (1 << 4)
/* --- SPI_SR values ------------------------------------------------------- */
/* FRE / TIFRFE: TI frame format error */
#define SPI_SR_TIFRFE (1 << 8) //F2
#define SPI_SR_FRE (1 << 8) //others
/**@}*/