lora-car/libopencm3/lib/stm32/l1/flash.c

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/** @defgroup flash_file FLASH peripheral API
*
* @ingroup peripheral_apis
*
* @brief <b>libopencm3 STM32L1xx FLASH</b>
*
* @version 1.0.0
*
* @author @htmlonly &copy; @endhtmlonly 2010
* Thomas Otto <tommi@viadmin.org>
* @author @htmlonly &copy; @endhtmlonly 2010
* Mark Butler <mbutler@physics.otago.ac.nz>
* @author @htmlonly &copy; @endhtmlonly 2012
* Karl Palsson <karlp@tweak.net.au>
*
* @date 14 January 2014
*
* For the STM32L1xx, accessing FLASH memory is described briefly in
* section 2.3.3 of the STM32L1xx Reference Manual.
* For detailed programming information see:
* PM0062 programming manual: STM32L1xxxx Flash and EEPROM programming
* March 2012, Doc ID 16024 Rev 5
*
* LGPL License Terms @ref lgpl_license
*/
/*
* This file is part of the libopencm3 project.
*
* Copyright (C) 2010 Thomas Otto <tommi@viadmin.org>
* Copyright (C) 2010 Mark Butler <mbutler@physics.otago.ac.nz>
* Copyright (C) 2012-13 Karl Palsson <karlp@tweak.net.au>
*
* 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/flash.h>
/*---------------------------------------------------------------------------*/
/** @brief Enable 64 Bit Programming Mode
*/
void flash_64bit_enable(void)
{
FLASH_ACR |= FLASH_ACR_ACC64;
}
/*---------------------------------------------------------------------------*/
/** @brief Enable 32 Bit Programming Mode
This mode is a low power mode. It must be used at low frequencies and does not
allow prefetch or wait states to be used.
*/
void flash_64bit_disable(void)
{
FLASH_ACR &= ~FLASH_ACR_ACC64;
}
/**@}*/