45 lines
1.3 KiB
C
45 lines
1.3 KiB
C
/*
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* Copyright (C) 2016 Daniele Lacamera <root at danielinux.net>
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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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#define PAGE_SIZE (1024)
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#include <unicore-mx/lm3s/flash.h>
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#define FMC_FLASH_WRITE_KEY ((0xA442) << 16)
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#define FMC_COMT (1 << 3)
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#define FMC_MERASE (1 << 2)
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#define FMC_ERASE (1 << 1)
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#define FMC_WRITE (1)
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void flash_erase_page(void *page_address)
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{
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FLASH_FMA = page_address;
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FLASH_FMC = (FMC_FLASH_WRITE_KEY | FMC_ERASE);
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}
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void flash_program_word(void *address, uint32_t *data)
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{
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FLASH_FMA = address;
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FLASH_FMD = *data;
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FLASH_FMC = FMC_FLASH_WRITE_KEY | FMC_WRITE;
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}
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int flash_write_finished(void)
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{
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return ((FLASH_FMC & FMC_WRITE) == 0);
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}
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