47 lines
1.0 KiB
C
47 lines
1.0 KiB
C
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/*
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* Copyright (c) 2020 Raspberry Pi (Trading) Ltd.
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*
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* SPDX-License-Identifier: BSD-3-Clause
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*/
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#ifndef _BOOT_UF2_H
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#define _BOOT_UF2_H
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#include <stdint.h>
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#include <assert.h>
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/** \file uf2.h
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* \defgroup boot_uf2 boot_uf2
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*
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* Header file for the UF2 format supported by an RP2040 in BOOTSEL mode.
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*/
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#define UF2_MAGIC_START0 0x0A324655u
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#define UF2_MAGIC_START1 0x9E5D5157u
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#define UF2_MAGIC_END 0x0AB16F30u
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#define UF2_FLAG_NOT_MAIN_FLASH 0x00000001u
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#define UF2_FLAG_FILE_CONTAINER 0x00001000u
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#define UF2_FLAG_FAMILY_ID_PRESENT 0x00002000u
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#define UF2_FLAG_MD5_PRESENT 0x00004000u
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#define RP2040_FAMILY_ID 0xe48bff56
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struct uf2_block {
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// 32 byte header
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uint32_t magic_start0;
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uint32_t magic_start1;
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uint32_t flags;
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uint32_t target_addr;
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uint32_t payload_size;
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uint32_t block_no;
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uint32_t num_blocks;
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uint32_t file_size; // or familyID;
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uint8_t data[476];
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uint32_t magic_end;
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};
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static_assert(sizeof(struct uf2_block) == 512, "uf2_block not sector sized");
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#endif
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