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http://envy24.svobodno.com/
5 i0 W( n7 \6 j, n& |对应声卡的detail链接里面有rom信息
" `* i$ d& b5 r8 T购入一块莫邪II OEM版,还在路上,先看看修改什么版本的ROM合适
, V# |& ]! ] E" W哪位朋友知道EEPROM那些偏移量的具体意义呀?2 {4 R2 p" i6 C5 ]3 f- Q) c
查了半天也没有查到详细的资料:(" Z1 g. H3 ]5 k+ R" T: D T
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目前我知道的很少的信息:
: w- T/ p5 v! J( u7 I& a! q$ G) _(感觉有不对的地方:()
( p2 k. g, N' r n(转自http://diybbs.enet.com.cn/thread-2956019-1-1.html)
. L( w8 m* W; q3 |Offset#0=A6; 0 l5 E+ M% y7 i3 r" B; ^3 u
1 O7 a" T+ J! x; o6 J) M2 wOffset#1=04;
5 A& p! T; j: ^3 K/ M$ ?3 W2 ]Offset#2=14; ) E7 Q! L5 E! r! t; _! ^, L- o" U+ q& S. {# G. s" T* K
Offset#3=58; , F F1 y4 e; E9 ?: ^7 M e
Offset#4=1C;
, ~' \/ B* }& r$ q6 Z! @) oOffset#5=01;
7 v" v5 V$ R' k8 ^+ V4 F5 EOffset#6=02;
7 t* f# |6 @) `( k. wOffset#7=02; 7 `1 P6 G4 |$ P1 |( M; ^6 s" H4 }3 v5 A7 x
Offset#8=10; 1 g2 B2 A& {& [) I/ {' n
Offset#9=C1; L) Q4 X* R: q/ v
0 E3 L0 v1 v) _" B; \) {8 h7 YOffset#A=FF;
1 A+ o: r/ ?$ z8 `2 {) k9 |+ iOffset#B=00;
! m; X y" ]- jOffset#C=00; 9 J; U2 Y: v) A6 ]# n9 @7 p4 d ]1 H1 H8 ], W
Offset#D=FF;
* D9 J2 [$ [; }9 I" j; _& nOffset#E=00; 2 t: N3 ?. m1 \8 o; t* a( P
Offset#F=00; 3 J1 S3 }4 e% X& B# w2 O
0 r* e$ A* h8 u( k$ q% pOffset#10=FF; 8 P, M4 \# e1 ~, a
Offset#11=00; 0 i$ e: z) Y; X. H8 a0 t! l( @; ~ N- V, X7 A; ?
Offset#12=00; 4 {" Z/ ^- ?6 f* A* @* i0 p! g+ p8 A
Offset#13=00; $ H" 2 ?2 6 d: H1 [
2 B2 T+ ~- S. M+ a- P) `7 fOffset#14=01; 9 t# l8 W% q, }" m
Offset#15=01; / L: ['' E3 A7 y/ Y n
6 S$ D8 ]2 P5 p# V8 y# VOffset#16=01; 4 Q% L% X6 a _6 c# P- U. E+ w9 J x8 ~7 P' V
Offset#17=00; ; _% t" v6 P' v" N1 i: a! A' y
Offset#18=01; 1 f! i/ ^4 {4 c9 M0 C% b3 W4 ]/ I) u% R) ?2 n9 o( c. q
Offset#19=00; , W: e% g y: d& L+ S$ G& M- W; O, s- q) K+ w) a
Offset#1A=00; 2 |; s/ n4 v1 ^: T5 j% ?# [& \& g
Offset#1B=00; . s'' X! A4 L'' B
6 P: K( X+ A1 R( EOffset#1C=06;
& m. x5 z. b% qOffset#1D=00; t: u'' u, L6 D; U" i2 X. I5 E' m. a
Offset#1E=00;
2 _0 O- M; q; O# xOffset#1F=00;9 c, \* a! {" P# P1 ]% q+ ~
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其中:
q$ l( G4 w9 |6 u' z$ yByte 0-3:PCI subsystem vendor and subsystem device ID,上面网址中有
8 W; M! U3 I& S4 v8 U5 z) e( {6 fByte 4: EEPROM的大小" v k9 t5 u% @& k
Byte 5: EEPROM version (seems to be supposed to be 1 for ICE1712(Envy24) and 2 forICE1724 (Envy24HT), but seems like it''s usually setto 1 even on Envy24HT..)8 g% A) V& \# N
Byte 6: System configuration byte - gets written to the correspondingcard register by the driver. Controls clock crystal configuration,MPU-401 MIDI UART, how many ADCs/DACs are connected.?8 L1 _* P6 Y$ z
7 j3 K4 @7 Z" Z( eByte 7: ACLink configuration byte - gets written to the correspondingcard register by the driver. Controls the connection to the AC97 codec(i.e. the VT1616 used for the front, rear, center/LFE outputs).
1 @% _; S. u, C) s" }) S" f& uByte 8: I2S configuration byte - gets written to the corresponding cardregister by the driver. Controls the connection to the I2S codec (i.e.presumably the Wolfson codec for the high sample rate output).
@; C) N5 y; |& n' k1 ~Byte 9: SPDIF configuration byte - gets written tothecorresponding card register by the driver. Controls the SPDIF transmitter.
2 h5 l! }& v1 q" A* A( \9 XByte 10: GPIO Direction7 V! y' _/ G6 D% b- l
Byte 11: GPIO Direction 1
. s% \' a0 K, sByte 12: GPIO Direction 2" B3 y- ]0 j g+ z- _9 c8 M2 D
Byte 13: GPIO Mask6 v4 E* P; D- z. {0 U
Byte 14: GPIO Mask 15 l0 \. ^ {9 N- [8 }% C/ G* Y: ?* j
Byte 15: GPIO Mask 2{- S. x c1 `4 `+ i6 ]% Z( ^
/ M4 k4 A* h, v! q) g6 a) OByte 16: GPIO State7 f'' w& V6 Z* t, V+ G/ ^2 p. k( y8 h, X/ F
Byte 17: GPIO State 14 d0 x/ x, S0 b0 R3 - I) P# X# M8 }( I. H4 }) [0 ]. E$ ?
Byte 18: GPIO State 2# w( F( p. L2 p
3 W- X- D$ S$ g' c3 paddress function values and their significations - ~4 O; `/ |) A/ @* Z5 [- J7 D
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Offset#7 AC-Link Configuration Register 80=I2S. 02=AC''97'' } S. j6 T4 t'' q+ |! E3 G% `) _. H0 c- G1 R
Offset#8 I 2 S Converters Features Register F8=I ²S codechas volume/mute control capability and need to be programthrough GPIO;converter 96kHz sampling rate support;24-bit;I ² Sconverter 192kHz sampling rate support. F0=I ²S codec has volume/mutecontrol capability and need to be program through GPIO;I ² S converter96kHz sampling rate support;24-bit. 10=18bit) t2 J6 |: h" `$ s% M( |- Z: J+ ^' A- m% `* J( Z0 W# h
Offset#9 S/PDIF Configuration Register C1=Enableintegrated S/PDIF transmitter;Internal S/PDIF Out implemented;ExternalS/PDIF Out implemented; S8 T1 l0 k$ S8 ^6 N3 ?: L' g5 Z G& j/ w* ^0 e
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3 }! l }) S6 G. j3 d2 V9 y[ 本帖最后由 dsxl 于 2008-6-16 15:13 编辑 ] |
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