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http://envy24.svobodno.com/% P% s2 z/ \- C" ^ m; Q' V
对应声卡的detail链接里面有rom信息7 R9 A" U# l7 u5 ]
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) B8 y5 b" ?4 u2 J: Y7 j" _! Y
哪位朋友知道EEPROM那些偏移量的具体意义呀?
4 t9 k. g8 d; x2 s: Z5 O7 |, A查了半天也没有查到详细的资料:(
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目前我知道的很少的信息:
: f% @! Y2 X2 p; |% Y(感觉有不对的地方:()( L* ^6 O+ h' h6 H: Z7 ~& t
(转自http://diybbs.enet.com.cn/thread-2956019-1-1.html)$ s- y* U; N# r9 y7 B. _) ~) f' K2 H
Offset#0=A6; 0 l5 E+ M% y7 i3 r" B; ^3 u
, a1 A* y6 k3 [& | FOffset#1=04; : c1 P9 ~4 o5 v3 O: Q& \' O7 k$ e
Offset#2=14; ) E7 Q! L5 E! r! t; _$ ]+ n H* b% a
Offset#3=58; ( a7 Y4 T3 A; q- a* H& D' K
Offset#4=1C;
9 r, }" l! |- s W6 |: g" bOffset#5=01;
p% R: |2 F+ ^7 q1 G! z8 v# `Offset#6=02; & g7 d2 e- V7 u- s8 h
Offset#7=02; 7 `1 P6 G4 |$ P1 |( M
" q+ ?) P: H8 p4 Z, I" F+ P" LOffset#8=10;
% V. R4 y% e" d9 D# ?7 }+ m0 \: i% EOffset#9=C1; L) Q4 X* R: q/ v6 ]) T: w+ Q; M. r* j1 z
Offset#A=FF; # F: V+ f" q' N% a- x
Offset#B=00; - B9 c8 P2 _+ I2 r. _
Offset#C=00; 9 J; U2 Y: v) A6 ]# n9 @7 p4 d
9 Q' n* k1 X- ~& O. s! [Offset#D=FF; - K( F' l8 S* @/ z2 N: h% u
Offset#E=00;
7 n' C" J4 U( T j* bOffset#F=00; 3 J1 S3 }4 e% X& B# w2 O( a# g4 R1 w6 D
Offset#10=FF; " |- Y0 j7 I6 @5 ~% U
Offset#11=00; 0 i$ e: z) Y; X. H8 a0 t, z; p0 Y' C) m/ f: x) G" x; i8 H
Offset#12=00; 4 {" Z/ ^- ?6 f* A
8 q# [8 k5 r ?2 }, s1 @& ROffset#13=00; $ H" 2 ?2 6 d: H1 [4 _4 o- k8 q# @5 b3 n( F6 m1 j
Offset#14=01;
: q; r" S) d! R- hOffset#15=01; / L: ['' E3 A7 y/ Y n! z+ {% ]' G1 m' f0 O
Offset#16=01; 4 Q% L% X6 a _6 c# P- U. E+ x6 W1 G u K7 N" Z; y6 F- \
Offset#17=00; b0 b, p' }6 O# _) C9 ^% j9 r
Offset#18=01; 1 f! i/ ^4 {4 c9 M0 C% b
7 Z! p( z3 e) COffset#19=00; , W: e% g y: d& L+ S
4 s' w3 ]) n; j. L" o- \Offset#1A=00;
6 P+ ~4 J8 y* ZOffset#1B=00; . s'' X! A4 L'' B0 M$ M9 W0 Y8 A: ]; s1 S( n, l
Offset#1C=06; * D) L: i+ j% |$ c3 S2 r5 B
Offset#1D=00; t: u'' u, L6 D; U/ K6 Y/ H0 i9 y2 G- m8 J/ _
Offset#1E=00; / J+ _) a$ k6 O. _) h
Offset#1F=00;
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其中:
; r' m2 p2 e& B3 r, |Byte 0-3:PCI subsystem vendor and subsystem device ID,上面网址中有+ g# Z% v1 {( V7 N
Byte 4: EEPROM的大小, ]7 }, t" z C1 @: |' ?1 J5 K" J
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..)
# v1 p5 N: ^/ t* Y: a! z, jByte 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
2 Y- I! @7 v% h' z0 p* OByte 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).4 E4 W/ [9 n& x
Byte 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).; B: x$ F2 k7 G9 ?4 t
Byte 9: SPDIF configuration byte - gets written tothecorresponding card register by the driver. Controls the SPDIF transmitter.# r& i4 q6 ^9 h+ N
Byte 10: GPIO Direction
! K5 w: G* c* d$ x. R3 H; n TByte 11: GPIO Direction 1
' v: d( h- \/ i8 tByte 12: GPIO Direction 2
4 Z& ]: B A' \; U$ dByte 13: GPIO Mask
) L3 D+ k0 e5 @8 J' J+ @Byte 14: GPIO Mask 1
: L8 @. J- B9 |, fByte 15: GPIO Mask 2{- S. x c1 `4 `+ i6 ]% Z( ^
m( @2 M9 H6 u& p' x; f8 T/ E7 vByte 16: GPIO State7 f'' w& V6 Z* t, V+ G/ ^
2 v: B* L- H- H2 SByte 17: GPIO State 14 d0 x/ x, S0 b0 R3
J3 p) s, |* o- n# ~* s0 |Byte 18: GPIO State 2
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$ }0 K8 i6 q! |6 I6 E' vaddress 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+ |! E
f1 N1 x6 S% P' x; COffset#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( |- Z1 A6 |) z! {* G* R" k+ q
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 N
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; |/ S4 Q9 M5 n0 z, B+ [; [[ 本帖最后由 dsxl 于 2008-6-16 15:13 编辑 ] |
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