34 lines
1.6 KiB
C
34 lines
1.6 KiB
C
/* This program is free software: you can redistribute it and/or modify
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* it under the terms of the GNU 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 program 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 General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program. If not, see <http://www.gnu.org/licenses/>.
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*
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*/
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/* Copyright (c) 2016 King Kévin <kingkevin@cuvoodoo.info> */
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/* this library is used to store (read and write) data in flash */
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/* peripherals used: none */
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#include <libopencm3/stm32/desig.h> // device signature utilities
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// how much data (in bytes) should we be able to store (be sure it's available and does not overlap the firmware)
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#define STORAGE_SIZE 2048
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// the end of the flash area where to store data
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#define STORAGE_END FLASH_BASE+DESIG_FLASH_SIZE
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// the start of the flash area where to store data (be sure it's after the firmware data)
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// we will only use the last kilobytes
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#define STORAGE_START STORAGE_END-STORAGE_SIZE
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/* read <size> data from address <address> into <buffer>
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* returns if read succeeded */
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bool storage_read(uint32_t address, uint8_t *buffer, size_t size);
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/* write <size> data from <buffer> to address <address>
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* returns if write succeeded */
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bool storage_write(uint32_t address, uint8_t *buffer, size_t size);
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