效率源数据恢复论坛
标题:
NVRAM Data Structure
[打印本页]
作者:
效率源技术部03
时间:
2009-8-7 09:47
标题:
NVRAM Data Structure
[/font]
% P4 t+ H9 P" e1 n4 _
[font=Verdana]Here, we only discuss NVRAM of laptop HDD. ( In desktop HDD, NVRAM is identical for a same family). The picture below shows you typical data structure of NVRAM.
w, Y% ~( s- s1 F+ [/ }
[/font]
5 g; V2 Y$ b4 |2 R! B
[/font]
0 `, D: W# a# M1 s
[font=Verdana]1: NVRAM version, "A60A"
3 D( k q! \8 d1 n4 N/ ]0 i( @
[/font]
5 T, z0 M L" Y" \4 n* A+ @" I
[font=Verdana]2: Version checksum, "1E602135" (High byte backward, low byte forward)
5 l2 ?' y; _- m% r( U7 z" q
[/font]
, l1 I& I6 o$ K+ D
[font=Verdana]3: FW boot flag. "0x01", boot from SA-A; "0x00" from SA-C, factory copy.
$ @6 j( N' t2 O0 r' [
[/font]
# _3 J( i$ F# i" \
[font=Verdana]4: Head map "00 01 02 00"
( g% i$ U# Y- G
[/font]
- s4 d' q+ u3 x: ^ e, n( S0 @6 ]
[font=Verdana]5: Adaptive parameters of data area, "14F1" (High byte backward, low byte forward)
0 E% P$ x: M6 E3 w+ b, u v c
[/font]
K' i5 Q9 n6 n, B# q/ Q' I5 D
[font=Verdana]6: Adaptive parameters of data area, "83F8" (High byte backward, low byte forward).
. M2 ? z+ H1 f/ |! m
[/font]
6 V( Y: O& M& B- L x; U: Y
[font=Verdana]7: "XGH7Z3DM", S/N on the label.
4 z6 @5 A8 F) D, u! z
[/font]
, R: o2 ^/ S9 O" T1 i# `1 w. P
[font=Verdana]Attention: the offset of those strings differs from different drive family.[/font]
+ g4 I" p. G$ [. o+ `3 G
2 U, q: F' E/ G( \/ ^
作者:
彭木姣
时间:
2011-1-25 11:51
好贴，要顶呀!~~~~~~~~
; d- y9 c n8 Q. M* e" o/ F; X
我打酱油滴~~~~~
! I- w( ]& K/ f+ S! c! H; n! c
, u. }1 N; U6 X! r! A
欢迎光临 效率源数据恢复论坛 (http://bbs.xlysoft.net/)
Powered by Discuz! X3.2