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[/font]# m0 P0 T6 y8 [
[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.
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* ~9 W+ V2 a4 h+ `9 k[font=Verdana]1: NVRAM version, "A60A"
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[font=Verdana]2: Version checksum, "1E602135" (High byte backward, low byte forward)+ [, G3 G/ D$ s* l0 ]- |
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[font=Verdana]3: FW boot flag. "0x01", boot from SA-A; "0x00" from SA-C, factory copy.
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4 d, B8 k& ~$ p- a[font=Verdana]4: Head map "00 01 02 00"6 I) a* I' {, f6 B5 i" f+ \
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[font=Verdana]5: Adaptive parameters of data area, "14F1" (High byte backward, low byte forward)# \7 y% a# L% M5 J) C$ v
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[font=Verdana]6: Adaptive parameters of data area, "83F8" (High byte backward, low byte forward). z e; O9 j& `. n q' G
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[font=Verdana]7: "XGH7Z3DM", S/N on the label.& p. r* C9 o4 C. z+ l
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$ z# f+ ^2 x* J' F4 S' L+ a[font=Verdana]Attention: the offset of those strings differs from different drive family.[/font]/ p W1 P. k; u& w: y3 c1 I
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发表于 2009-8-7 09:47:00
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发表于 2011-1-25 11:51:00
