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http://envy24.svobodno.com/- a- I* ^0 a* f, C7 _) a
对应声卡的detail链接里面有rom信息% Q8 @3 `1 L: J% X" A
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7 h/ e# I; I" T, c
哪位朋友知道EEPROM那些偏移量的具体意义呀?, B1 m5 m4 k! U2 |5 T
查了半天也没有查到详细的资料:(! E% B1 L5 T7 d0 Q
4 ?, K3 Y, A: M3 m/ L s( f. M' K# t目前我知道的很少的信息:$ \1 `- @$ {- M% ?& I+ O% r( O- {
(感觉有不对的地方:()# L" |4 f( s* | i# X& E
(转自http://diybbs.enet.com.cn/thread-2956019-1-1.html)" T6 g3 D& `9 @; T- r) S o0 \
Offset#0=A6; 0 l5 E+ M% y7 i3 r" B; ^3 u
; T" I- t( I4 s8 ZOffset#1=04; - J8 }! a$ d6 l. A
Offset#2=14; ) E7 Q! L5 E! r! t; _
. O9 K3 S8 S POffset#3=58; & h4 H: |; y/ H$ y# b& ^" q
Offset#4=1C;
q# V2 X: I: W9 P y% P) w3 COffset#5=01; 9 m$ B; u6 x! V2 x
Offset#6=02;
' R1 l* T4 l& {3 f( T3 ?Offset#7=02; 7 `1 P6 G4 |$ P1 |( M( O, J3 \& e, d# q" f
Offset#8=10; 9 k6 U' t( N; A& A3 H
Offset#9=C1; L) Q4 X* R: q/ v
( V9 {6 m4 I1 d! Z7 ~Offset#A=FF;
# Y. B* `. r* L2 uOffset#B=00;
, N8 f, x! m8 W0 ~! sOffset#C=00; 9 J; U2 Y: v) A6 ]# n9 @7 p4 d, f3 j, |1 @- i$ z/ Y
Offset#D=FF; ; _6 Y% o# }5 Z9 g
Offset#E=00;
# _2 t1 b6 g7 ?/ B2 P* \: ROffset#F=00; 3 J1 S3 }4 e% X& B# w2 O, P9 A0 s9 `$ H1 @5 M8 e6 G
Offset#10=FF; 6 j9 c/ O v! R
Offset#11=00; 0 i$ e: z) Y; X. H8 a0 t
" W' h+ S- g! _* q. ~Offset#12=00; 4 {" Z/ ^- ?6 f* A2 |7 h( l: [; x5 B
Offset#13=00; $ H" 2 ?2 6 d: H1 [
9 A$ Z* {/ r5 W/ G# pOffset#14=01; 7 d2 y7 q9 g( d+ B* [& `6 _. L" N
Offset#15=01; / L: ['' E3 A7 y/ Y n3 O6 M. s# Z: ~. h% c
Offset#16=01; 4 Q% L% X6 a _6 c# P- U. E& @9 x, n! w) Y
Offset#17=00;
: [* E H# w# m' q- zOffset#18=01; 1 f! i/ ^4 {4 c9 M0 C% b
5 J7 h/ B2 d0 x" s! j0 W* rOffset#19=00; , W: e% g y: d& L+ S9 e" J9 S* o+ p+ g! {3 P
Offset#1A=00; . H+ H/ G! h1 x3 S
Offset#1B=00; . s'' X! A4 L'' B
& a$ g( R K+ C Y% oOffset#1C=06; ) }' e V5 v) ]8 U3 q
Offset#1D=00; t: u'' u, L6 D; U! H! C: l) \$ x" V+ [6 G2 m# t2 ^
Offset#1E=00;
& s) \6 W$ R( }; Z! \ VOffset#1F=00;& ]: B# X% J W3 c2 J* a
5 ^4 K6 N- y4 I6 n" M7 [其中:
2 @6 ]/ x8 s c% Y/ pByte 0-3:PCI subsystem vendor and subsystem device ID,上面网址中有; _- ]4 \; i$ R! K3 h& w8 I
Byte 4: EEPROM的大小7 V/ O; s9 X& J3 t
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..)
* S7 X3 C9 O- k0 kByte 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$ z4 O' L5 B& |. c) c1 A8 h+ L
Byte 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)./ A4 O( d! _/ g% B
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).
' x6 A( O+ A, _7 tByte 9: SPDIF configuration byte - gets written tothecorresponding card register by the driver. Controls the SPDIF transmitter.3 j% x& ~+ c! H
Byte 10: GPIO Direction
- H8 \. L* m0 `/ c2 a( ?Byte 11: GPIO Direction 1
9 Y8 f1 B6 G0 {9 D' A: J% D' K. L3 l9 wByte 12: GPIO Direction 2
' f: \2 f. k) O- h, z: @* m2 `Byte 13: GPIO Mask
- O& d4 \" M; ] w6 [ h! WByte 14: GPIO Mask 1
6 Y% G9 t' E6 Z" j5 f# KByte 15: GPIO Mask 2{- S. x c1 `4 `+ i6 ]% Z( ^
6 X3 L. P( P3 r; t/ N$ D. rByte 16: GPIO State7 f'' w& V6 Z* t, V+ G/ ^1 ?% g8 ~8 w% J0 Q
Byte 17: GPIO State 14 d0 x/ x, S0 b0 R3
, T/ a% L. ^3 |; F" B r/ QByte 18: GPIO State 2+ l( L, ?, d/ k r
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address function values and their significations - ~4 O; `/ |) A/ @* Z5 [- J7 D0 R* |7 J0 `* |
$ F4 X2 S. x1 c: I) t s, OOffset#7 AC-Link Configuration Register 80=I2S. 02=AC''97'' } S. j6 T4 t'' q+ |! E* @% @+ n' n2 k! F6 y8 j& d
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( |- Z7 w4 K( J" d F6 Y
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 N2 M5 F2 B2 J5 {! s- S, a, V
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) f$ V+ E) _3 ^! a0 X[ 本帖最后由 dsxl 于 2008-6-16 15:13 编辑 ] |
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