63 lines
1.9 KiB
C
63 lines
1.9 KiB
C
/**
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Microsoft UF2
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The MIT License (MIT)
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Copyright (c) Microsoft Corporation
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All rights reserved.
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Permission is hereby granted, free of charge, to any person obtaining a copy
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of this software and associated documentation files (the "Software"), to deal
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in the Software without restriction, including without limitation the rights
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to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
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copies of the Software, and to permit persons to whom the Software is
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furnished to do so, subject to the following conditions:
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The above copyright notice and this permission notice shall be included in all
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copies or substantial portions of the Software.
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THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
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IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
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FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
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AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
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LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
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OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
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SOFTWARE.
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*/
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#ifndef UF2FORMAT_H
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#define UF2FORMAT_H 1
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#include <stdint.h>
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#include <stdbool.h>
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// All entries are little endian.
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#define UF2_MAGIC_START0 0x0A324655UL // "UF2\n"
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#define UF2_MAGIC_START1 0x9E5D5157UL // Randomly selected
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#define UF2_MAGIC_END 0x0AB16F30UL // Ditto
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// If set, the block is "comment" and should not be flashed to the device
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#define UF2_FLAG_NOFLASH 0x00000001
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typedef struct {
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// 32 byte header
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uint32_t magicStart0;
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uint32_t magicStart1;
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uint32_t flags;
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uint32_t targetAddr;
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uint32_t payloadSize;
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uint32_t blockNo;
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uint32_t numBlocks;
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uint32_t reserved;
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// raw data;
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uint8_t data[476];
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// store magic also at the end to limit damage from partial block reads
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uint32_t magicEnd;
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} UF2_Block;
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#endif
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