手把手教你使用长编码功能% u" b4 g2 h7 Q" e* T3 U5 W# }
首先我们来认识一下长编码,以09中央电器功能的长编码为例,我的原厂设置是:
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018D8F020004100000120C000000000000087F075C% e9 M7 W2 b6 s9 R2 C. t" J6 p
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09功能长编码是21个byte组成的,每个byte是16进制的2个字符,顺序是从左到右,从00开始到20) G6 C% F+ m; H+ ~
以上面一个为例,byte00的值就是01,byte01的值就是8D,byte02的值就是8F,以此类推到byte20就是最后一位5C。% u3 m: z# I/ G" F6 _6 ?' d7 b9 H: H6 |
7 M! V- D. t% W: e接下来,就是继续分解byte到bit位,我们知道,任何功能都是有开、关两种状态,在2进制中就是1、0来代表,然后,每个16进制的byte转换成2 进制就是8位bit,上面的例子中,byte00的16进制值01,转换成2进制就是00000001,byte01的16进制值8D转换成2进制就是 10001101,byte02的8F转换了就是10001111。( a/ i4 N( j. p: ^) t
有个简单的转换方法,就是利用windows系统自带的计算器,在查看选项中选择科学性计算器,然后选16进制,例如输入刚才byte01的8D,然后再点一下2进制,就会自动转换成2进制的数字。不过要记住一点,计算器转换出来的2进制,如果前面几位是0会不显示,需要我们手动补足0,例如byte00 的值01,转换成2进制,计算器上显示仍然是1,但是我们需要在前面补上7个0。
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/ R( h2 b+ x% V/ d1 n4 x这样,我们就得出了byte00的值是00000001,byte01是10001101,byte02是10001111,byte03是00000010,byte04是00000000。- z3 g& F+ ?3 @! }: p8 K9 s; s
注意一下,8位的bit的前后顺序是从右向左从bit0到bit7的,也就是以byte00为例,bit0位是1,bit7位是0, byte01的bit0位是1,bit1位是0,bit2位是1,和byte的顺序正好相反,这一点一开始很容易搞错,千万注意,呵呵。
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得到了上述的编码后,然后我们再来看09长编码的功能对照表。 u/ Z, n1 ?0 T$ O1 w
- e2 h* |! q# C g" W2 QByte 00 Bit 0 Fog Lights installed (PR-8WB); i' y. @" F7 K ^
Byte 00 Bit 1 Xenon Headlights installed
# G D0 r1 v/ r; }6 r; i, MByte 00 Bit 2 Footwell Lights installed (PR-QQ4)' T' ^# X# E3 R$ f# n
Byte 00 Bit 3 Daytime Running Lights (Scandinavia)
* D9 Y# M$ t) o" a7 C5 G8 u& S3 rByte 00 Bit 4 Daytime Running Lights (North America)
% q- X! d; H0 ?1 x) F: c4 b1 rByte 00 Bit 5 Assistance Driving Light & Leaving Home# O1 X/ n! {9 f# u$ U- U
Byte 00 Bit 6 Rain/Light Sensor installed
+ X5 Q6 E1 o- w3 ?: ]Byte 00 Bit 7 Coming-Home
; K: S6 {, ^0 D+ `Byte 01 Bit 0 Rear Seat Recognition installed
4 ]2 f- \: q. fByte 01 Bit 1 Headlight Washer installed (PR-8X1)
& E/ h: }. ^ Z! H, y; C9 e6 jByte 01 Bit 2 Electronic Fuelpump Relay installed (Gasonline only)
- X" D4 e: w: L9 TByte 01 Bit 3 Rear Wiper installed
. Q9 h: {8 G) VByte 01 Bit 4 Heated Side Mirror installed
8 R$ ]. a, p; ?Byte 01 Bit 5 Rear Lid Remote Opening: M q* G& E9 |3 j8 t% j
Byte 01 Bit 6 Rear Lid Remote Opening - Release
) F. D; v+ A$ x" jByte 01 Bit 7 Rear Wiper with Front Wiper continiously active
& W. w8 p( Y: Z! P. CByte 02 Bit 0 Rear Wiper with Front Wiper intermittent active
* Y0 v8 R c' p* ^$ WByte 02 Bit 1 Comfort Turn Signals
. P" F5 ~1 {4 ^* hByte 02 Bit 2 Cold Lamp Diagnosis active' g% o' ~2 ?. H5 m6 U0 j- _! u8 C" h
Byte 02 Bit 3 Load Management active
6 V4 Z( J) n+ J4 ]1 {( W5 hByte 02 Bit 4 Coming-Home via ^5 e$ i6 U+ Y& y- A
(1 = Potentiometer / 0 = Adaptation): @9 I9 I L. e' n1 a3 p- e& W
Byte 02 Bit 5 Rear Lid Remote Openening3 ^6 I6 w+ g8 t/ ~& O P. A+ w# j+ y
(1 = Contact activated / 0 = Impuls activated)& B- F. p$ U% e; c2 d
Byte 02 Bit 6 Side Turn Signal Lights installed
( g1 ]7 ]; A4 F# ?8 [7 bByte 02 Bit 7 Seat Heating installed (PR-4A3/4A4)& m2 H7 P3 _* L8 r, I r
Byte 03 Bit 0 Realy Terminal 15 installed (with 2nd Battery)
: {5 z7 \8 S A( BByte 03 Bit 1 Rear Fog Lights (1 = 1 active / 0 = 2 active)
2 L- y( B/ G3 Q$ EByte 03 Bit 2 Reverse Driving Lights (1 = 1 active / 0 = 2 active)
0 t) E2 D& w% G8 w$ d& PByte 03 Bit 3 Reverse Driving Light off when Rear Lid open
/ P! w* m9 K5 p. ^4 S1 L0 E" HByte 03 Bit 4 Xenon-Shutter installed (Bi-Xenon), o, p) X1 h) q4 n5 W% e& G
Byte 03 Bit 5 Teardrop Wiping active0 B d _9 q9 t% w0 O
Byte 03 Bit 6 2nd Battery installed
9 w5 Q" o; T2 N; ^9 M& gByte 03 Bit 7 Rear Lights (1 = Back Light/Brake Light dimmed / 0 = Back Light dimmed)7 _7 J4 X+ o: x( f& ^5 r
Byte 04 Bit 0 Auxiliary Heating installed
' P2 A- N. w2 L4 \9 IByte 04 Bit 1 Auxiliary Heating installed- D% x/ Y% `; t: s
Byte 04 Bit 2 Trailer/Towing Device installed
& T# S( u, G- W: _: n2 V sByte 04 Bit 3 Memory Seats installed
& V* F8 y* |: x. t( m# T+ m; @Byte 04 Bit 4 Activation of both Rear Fog Lights* r# G: c3 a X2 P5 \5 `; {
Byte 04 Bit 5 Model (0 = Right Hand Drive / 1 = Left Hand Drive)+ p$ t$ `7 G" y9 @0 _$ U
Byte 04 Bit 6 Rear Fog Lights deactivated( q! M; z; P# ~' z! @7 J3 p
Byte 04 Bit 7 Climatronic installed
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…………
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; }5 M. D1 @' h6 x上面截取了byte00-byte04的功能对照,对比上面的代码,我们很容易看出,byte00位除了只有bit0是1,即打开状态,对应的功能是 Fog Lights installed (PR-8WB)即安装了雾灯,byte01位的bit0 bit2 bit3 bit7是打开状态,对应的功能是Rear Seat Recognition installed,Electronic Fuelpump Relay installed (Gasonline only),Rear Wiper installed,Rear Wiper with Front Wiper continiously active。
2 L/ J7 u: R0 G4 p2 d. q* j. V接下来,我们再找到我们需要变更的功能,比如说我们需要调节氙灯模式,那么对应功能表中是
' {% l; W6 m. ~& F5 Q0 F5 u! |Byte 00 Bit 1 Xenon Headlights installed1 M4 J: I" e4 P
以及离家和回家大灯
* R' P7 ~& e" H; y9 rByte 00 Bit 5 Assistance Driving Light & Leaving Home9 Z# F! Y: r0 q1 F+ ]" ]6 k8 E
Byte 00 Bit 7 Coming-Home
9 G: n1 q( Z" }) g0 `+ _/ G那么我们只需要把byte00的bit1 bit5 bit7位由0变成1,这样原来的byte00位00000001就变成了10100011' a7 F, R/ P+ j Z2 l9 Q
然后我们再用windows的计算器程序把2进制变为16进制,转换回去的byte00的16进制编码就是A3。
/ _) [4 y; c7 N9 `这样,再把byte00合并到09功能的长编码去,原来的长编码 R) \' M0 k# U' ]
018D8F020004100000120C000000000000087F075C5 _: q# U( e7 B6 R( n5 a0 A
就变成了
+ S5 Y0 U% O3 C4 H0 d) |% N; H1 _A38D8F020004100000120C000000000000087F075C- r( \- Q9 s, R4 b3 E
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