This page contains information that is eventually meant to result in a CHDK port for the 5D.

Firmware info[]


Latest Version v1.1.1

Firmware can be updated by end user and downloaded from Canon website.

Firmware can be decrypted with the same utility that works for the 30D.,134.msg2461.html#msg2461

Fir_tool 0.5 for 5D/30D/400D (9May2010)

fileLen = 0x4f6424
---.fir header---
0x000: modelId = 0x80000213, (5D, VxWorks)
0x010: version = 1.1.1
---ciphered part (xor)---
 xor_decoding [0x20-0x4f6424]... OK (0213_111_firmware.bin)
0x020: checksum = 0xe1a7fb7b
 checksum computing [0x0-0x4f6424] is OK!
0x024: updater offset = 0x30
0x028: firmware pack offset = 0x16e4d0
0x02c:  = 0x0
0x030: ---updater---
0x16e4d0: ---firmware---
0x16e4d0: (+0x000) firmware checksum = 0xe9f97565
 checksum computing [0x16e4d4-0x4f6424] is OK!
0x16e4d4: 0x96e4d4 (only with 5D)
0x16e4d8: number of files in the pack = 6
0x16e4dc: offset to the file table = 0x20 (from 0x16e4d0)
0x16e4e0: header size = 0x140 (from 0x16e4d0). end of header = 0x16e610
0x16e4e4: size of file table = 0x120
0x16e4e8: size after table = 0x387e14
0x16e4cc: 0x1 (only with 5D)
0x16e4d0: (+0x020) files table
0x16e4f0: 0x0002  0x000140 0x000042 MPU_FIRMWARE                     0x0001f4
0x16e520: 0x0002  0x000182 0x0010a0 MPU_FIRMWARE                     0x00047e
0x16e550: 0x0002  0x001222 0x018098 MPU_FIRMWARE                     0x00ae4c
0x16e580: 0x0001  0x0192ba 0x35d8c0 --------                         0xf8010000 0x013880
0x16e5b0: 0x0001  0x376b7a 0x011398 --------                         0xf8780000 0x000172
0x16e5e0: 0x0002  0x387f12 0x000042 MPU_FIRMWARE                     0x0001f4
0x16e610: (+0x140) end of table, first file

Hardware info[]


Current Development Progress[]

Coutts has began to work on the 5d. To follow progress, please view this thread.