usbtest/libopencm3/lib/stm32/common/flash_common_f.c

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/** @addtogroup flash_file
*
*/
/*
* This file is part of the libopencm3 project.
*
* 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>
#include <libopencm3/stm32/common/flash_common_f.h>
void flash_unlock(void)
{
/* Authorize the FPEC access. */
FLASH_KEYR = FLASH_KEYR_KEY1;
FLASH_KEYR = FLASH_KEYR_KEY2;
}
void flash_lock(void)
{
FLASH_CR |= FLASH_CR_LOCK;
}
/* The bit number for EOP moves sometimes, but it's always a write 1 to clear */
void flash_clear_eop_flag(void)
{
FLASH_SR |= FLASH_SR_EOP;
}
/**@}*/