RockchipConfigFileSpecification.pdf

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Rockchip Config Files – Specs
DocumentVersion: 20140427-1658
Hi - here comes the result of my research to understand the file format of the
rockchip config files.
In case of questions don't hesitate to ask - you'll find me here:
http://www.freaktab.com/showthread.php?12404-RockchipDumpSplit-Simplifies-the-
creating-of-backups-from-rockchip-devices
Common:
Each config files consists of a header followed by one or more partition-blocks.
The older Rockchip tools (eg. 'RKAndroidTool v1.37') use ASCII to store
filenames while the new tool 'AndroidTool v2.1' now uses UTF16.
HEADER
Header ASCII:
Length=24 Bytes
123456789012345678901234
AAA#B#CCDEFGHI##J###KK##
Example HEX:
43 46 47 00 18 00 DE 07 04 0C 13 39 18 02 00 00 18 00 00 00 38 01 00 00
AA AA AA ## BB ## CC CC DD EE FF GG HH II ## ## JJ ## ## ## KK KK ## ##
Header UTF16:
Length=29 Bytes
12345678901234567890123456789
AAA#B#CCD###E#F#G#H#LLIJ###KK
Example HEX:
43 46 47 00 1D 00 DE 07 04 00 00 00 0D 00 0C 00 12 00 20 00 7A 02 01 1D 00 00 00 62 02
AA AA AA ## BB ## CC CC DD ## ## ## EE ## FF ## GG ## HH ## LL LL II JJ ## ## ## KK KK
Fields
:
AAA
B
CC
D
E
F
G
H
I
J
KK
LL
=
=
=
=
=
=
=
=
=
=
=
=
(ASCII)Indicator – is always 'CFG'
(BYTE) Header Length
(WORD) Date - YEAR: 0xDE 0x07 > 07DE=2014
(BYTE) Date - MONTH: 0x04 > 04
(BYTE) Date - DAY:
0x0C > 12
(BYTE) Date - HOUR: 0x13 > 19
(BYTE) Date - MIN:
0x39 > 57
(BYTE) Date - SEC:
0x18 > 24
(BYTE) Nr. of partition-blocks
(BYTE) address of first partition-block
(WORD) length of partition-block 0x38 0x01 >> 0x0138=312 Bytes
(WORD) Date - MSEC: 0x7A 0x02 > 027A=634 mSec
# = NULL
Additional information:
The 'Header Length' is always at the same address – it can be used to check if
file is ASCII or UTF16.
PARTITON-BLOCK
Block ASCII:
Length=312 Bytes
Block UTF16:
Length=610 Bytes
Basic Block Structure:
1. length of partition block (WORD)
1. 2 Bytes
2. name of partition (FIXED LENGTH STRING)
1. ASCII: 40 Characters=40 Bytes
2. UTF16: 40 Characters=80 Bytes
3. filename of partition-image (FIXED LENGTH STRING)
1. ASCII: 262 Characters=262 Bytes
2. UTF16: 260 Characters=520 Bytes
4. destination address on device (LONG)
1. 4 Bytes
5. block enabled/disabled (BYTE)
1. 1 Byte
6. 3 Byte NULL
Additional information:
1. character length of 'name of partition' and 'filename of partition-image'
INCLUDE the null-terminator! So effectively there's 1 character less
available!
2. Destination address is optional – the rockchip tools retrieve the correct
destination-addresses from the parameter file.

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