34 lines
780 B
C
34 lines
780 B
C
#ifndef UF2FORMAT_H
|
|
#define UF2FORMAT_H 1
|
|
|
|
#include <stdint.h>
|
|
#include <stdbool.h>
|
|
|
|
// All entries are little endian.
|
|
|
|
#define UF2_MAGIC_START0 0x0A324655UL // "UF2\n"
|
|
#define UF2_MAGIC_START1 0x9E5D5157UL // Randomly selected
|
|
#define UF2_MAGIC_END 0x0AB16F30UL // Ditto
|
|
|
|
// If set, the block is "comment" and should not be flashed to the device
|
|
#define UF2_FLAG_NOFLASH 0x00000001
|
|
|
|
typedef struct {
|
|
// 32 byte header
|
|
uint32_t magicStart0;
|
|
uint32_t magicStart1;
|
|
uint32_t flags;
|
|
uint32_t targetAddr;
|
|
uint32_t payloadSize;
|
|
uint32_t blockNo;
|
|
uint32_t numBlocks;
|
|
uint32_t reserved;
|
|
|
|
// raw data;
|
|
uint8_t data[476];
|
|
|
|
// store magic also at the end to limit damage from partial block reads
|
|
uint32_t magicEnd;
|
|
} UF2_Block;
|
|
|
|
#endif
|