4840b6bc7e
All the "f" type flash parts have an EOP flag, even if it's in different bit positions. Add a header for this common functionality, and move it's implementation to the existing common file.
70 lines
2.0 KiB
C
70 lines
2.0 KiB
C
/** @addtogroup flash_file
|
|
*
|
|
*/
|
|
|
|
/*
|
|
* 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>
|
|
*
|
|
* 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 Set the Number of Wait States
|
|
|
|
Used to match the system clock to the FLASH memory access time. See the
|
|
programming manual for more information on clock speed ranges. The latency must
|
|
be changed to the appropriate value <b>before</b> any increase in clock
|
|
speed, or <b>after</b> any decrease in clock speed.
|
|
|
|
@param[in] ws values from @ref flash_latency.
|
|
*/
|
|
void flash_set_ws(uint32_t ws)
|
|
{
|
|
uint32_t reg32;
|
|
reg32 = FLASH_ACR & ~(FLASH_ACR_LATENCY_MASK);
|
|
reg32 |= ws & FLASH_ACR_LATENCY_MASK;
|
|
FLASH_ACR = reg32;
|
|
}
|
|
|
|
|
|
/*---------------------------------------------------------------------------*/
|
|
/** @brief Clear the Programming Error Status Flag
|
|
|
|
*/
|
|
|
|
void flash_clear_pgperr_flag(void)
|
|
{
|
|
FLASH_SR |= FLASH_SR_PGPERR;
|
|
}
|
|
|
|
/*---------------------------------------------------------------------------*/
|
|
/** @brief Wait until Last Operation has Ended
|
|
|
|
This loops indefinitely until an operation (write or erase) has completed by
|
|
testing the busy flag.
|
|
*/
|
|
|
|
void flash_wait_for_last_operation(void)
|
|
{
|
|
while ((FLASH_SR & FLASH_SR_BSY) == FLASH_SR_BSY);
|
|
}
|
|
/**@}*/
|