55 lines
1.8 KiB
C
55 lines
1.8 KiB
C
/* Reflow Oven Controller
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*
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* Copyright (C) 2020 Mario Hüttel <mario.huettel@gmx.net>
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*
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* This file is part of the Reflow Oven Controller Project.
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*
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* The reflow oven controller is free software: you can redistribute it and/or modify
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* it under the terms of the GNU General Public License version 2 as
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* published by the Free Software Foundation.
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*
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* The Reflow Oven Control Firmware 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 the reflow oven controller project.
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* If not, see <http://www.gnu.org/licenses/>.
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*/
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#ifndef __SAFETY_MEMORY_H__
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#define __SAFETY_MEMORY_H__
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#include <stdint.h>
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/**
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* @brief Magic number to signal a valid safety memory header.
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*/
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#define SAFETY_MEMORY_MAGIC 0x12AA5CB7
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/**
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* @brief Offset address for the safety_memory_header.
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* @note Any other value than 0UL doesn't really make sense. Therfore, this should not be changed.
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*/
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#define SAFETY_MEMORY_HEADER_ADDRESS 0UL
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/**
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* @brief Safety memory header
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*/
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struct safety_memory_header {
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uint32_t magic; /**< @brief Magic. Set to @ref SAFETY_MEMORY_MAGIC */
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uint32_t boot_status_offset; /**< @brief Offset of the safety_memory_boot_status struct (in 32 bit words)*/
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uint32_t err_memory_offset; /**< @brief Offset of the error memory */
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uint32_t err_memory_end; /**< @brief End of the error memory. This points to the word after the error memory, containing the CRC of the whole backup RAM. */
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uint32_t magic_i; /**< @brief Invers Magic. Set to the bitwise inverse of @ref SAFETY_MEMORY_MAGIC */
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};
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struct safety_memory_boot_status {
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uint32_t reboot_to_bootloader;
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uint32_t code_updated;
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};
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#endif /* __SAFETY_MEMORY_H__ */
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