memory-map.md

Memory Map Reference

Flash Layout (2 MB)

• 0x10000000: BOOT2 (256 B)
• 0x10000100: Bootloader (64 KB)
• 0x10010000: Firmware Bank A (768 KB)
• 0x100D0000: Firmware Bank B (768 KB)
• 0x10190000: BootData sector (4 KB)

RAM Layout

• 0x20000000 - 0x2003BFEF: firmware runtime RAM
• 0x2003BFF0 - 0x2003BFF3: update flag (0x0FDA7E00)
• 0x2003C000 - 0x2003FFFF: reserved/bootloader high RAM usage

Important constants

Defined in crispy-common-rs/src/protocol.rs:

• FLASH_BASE = 0x10000000
• FW_A_ADDR = 0x10010000
• FW_B_ADDR = 0x100D0000
• BOOT_DATA_ADDR = 0x10190000
• RAM_UPDATE_FLAG_ADDR = 0x2003BFF0
• RAM_UPDATE_MAGIC = 0x0FDA7E00
• FW_BANK_SIZE = 768 * 1024