86 lines
2.8 KiB
C
86 lines
2.8 KiB
C
/*
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* This file is part of the libopencm3 project.
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*
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* Copyright (C) 2010 Thomas Otto <tommi@viadmin.org>
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* Copyright (C) 2010 Mark Butler <mbutler@physics.otago.ac.nz>
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*
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* This library is free software: you can redistribute it and/or modify
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* it under the terms of the GNU Lesser General Public License as published by
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* the Free Software Foundation, either version 3 of the License, or
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* (at your option) any later version.
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*
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* This library is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU Lesser General Public License for more details.
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*
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* You should have received a copy of the GNU Lesser General Public License
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* along with this library. If not, see <http://www.gnu.org/licenses/>.
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*/
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/*
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* For details see:
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* PM0081 Programming manual: STM32F40xxx and STM32F41xxx Flash programming
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* September 2011, Doc ID 018520 Rev 1
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* https://github.com/libopencm3/libopencm3-archive/blob/master/st_micro/DM00023388.pdf
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*/
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/** @cond */
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#ifdef LIBOPENCM3_FLASH_H
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/** @endcond */
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#ifndef LIBOPENCM3_FLASH_COMMON_F234_H
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#define LIBOPENCM3_FLASH_COMMON_F234_H
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#include <libopencm3/cm3/common.h>
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/* --- FLASH registers ----------------------------------------------------- */
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#define FLASH_ACR MMIO32(FLASH_MEM_INTERFACE_BASE + 0x00)
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#define FLASH_KEYR MMIO32(FLASH_MEM_INTERFACE_BASE + 0x04)
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#define FLASH_OPTKEYR MMIO32(FLASH_MEM_INTERFACE_BASE + 0x08)
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#define FLASH_SR MMIO32(FLASH_MEM_INTERFACE_BASE + 0x0C)
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#define FLASH_CR MMIO32(FLASH_MEM_INTERFACE_BASE + 0x10)
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/* --- FLASH_ACR values ---------------------------------------------------- */
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#define FLASH_ACR_LATENCY_0WS 0x00
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#define FLASH_ACR_LATENCY_1WS 0x01
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#define FLASH_ACR_LATENCY_2WS 0x02
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#define FLASH_ACR_LATENCY_3WS 0x03
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#define FLASH_ACR_LATENCY_4WS 0x04
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#define FLASH_ACR_LATENCY_5WS 0x05
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#define FLASH_ACR_LATENCY_6WS 0x06
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#define FLASH_ACR_LATENCY_7WS 0x07
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/* --- FLASH_SR values ----------------------------------------------------- */
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/* --- FLASH_CR values ----------------------------------------------------- */
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/* --- FLASH Keys -----------------------------------------------------------*/
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#define FLASH_KEYR_KEY1 ((uint32_t)0x45670123)
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#define FLASH_KEYR_KEY2 ((uint32_t)0xcdef89ab)
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/* --- Function prototypes ------------------------------------------------- */
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BEGIN_DECLS
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void flash_set_ws(uint32_t ws);
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void flash_unlock(void);
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void flash_lock(void);
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void flash_clear_pgperr_flag(void);
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void flash_clear_eop_flag(void);
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void flash_clear_bsy_flag(void);
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void flash_clear_status_flags(void);
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void flash_wait_for_last_operation(void);
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END_DECLS
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#endif
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/** @cond */
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#else
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#warning "flash_common_f234.h should not be included direcitly,"
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#warning "only via flash.h"
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#endif
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/** @endcond */
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