手把手教你使用长编码功能
8 e. k4 t# q$ ?+ a! W1 R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：( j0 H3 Z8 D* h9 K
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018D8F020004100000120C000000000000087F075C8 W2 Z, g+ l, J R% y2 w) t
: ^' c/ d" M* x. z09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, f* R. M: l6 n J
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。0 N1 K6 W( W- l6 g* h- m+ g
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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。
. k2 G L" _( R" g1 @2 {" D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。0 a; R+ k. e% e1 N8 g
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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。
& v+ ?' g+ Y; @! G$ m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。6 Q( v7 b/ ~ X# {9 B! _
& E( o& t9 a! `5 v7 _% [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。9 f: L a$ ?& f6 n, y; ]
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Byte 00 Bit 0 Fog Lights installed (PR-8WB)* V% ~/ k5 H* h& E0 z2 Z' V2 ]0 m
Byte 00 Bit 1 Xenon Headlights installed
% @3 p" P8 Y8 ]' r- x4 z+ gByte 00 Bit 2 Footwell Lights installed (PR-QQ4)8 E7 t& u7 ]6 U+ {
Byte 00 Bit 3 Daytime Running Lights (Scandinavia)# |% R6 X( U0 R2 O7 u8 V0 G
Byte 00 Bit 4 Daytime Running Lights (North America)
/ @, l7 s3 g0 O1 s: BByte 00 Bit 5 Assistance Driving Light & Leaving Home# f! v% k" {; A4 A" i9 y. ]! g
Byte 00 Bit 6 Rain/Light Sensor installed
: r( C$ ^% U% e$ [Byte 00 Bit 7 Coming-Home# O( t% I- A6 L D; ^
Byte 01 Bit 0 Rear Seat Recognition installed4 K* K: {: c+ n1 U- V
Byte 01 Bit 1 Headlight Washer installed (PR-8X1)6 B, Z1 N0 d, q
Byte 01 Bit 2 Electronic Fuelpump Relay installed (Gasonline only)
- d- l6 ^ u+ q/ p3 w$ ~. D' V: d! {Byte 01 Bit 3 Rear Wiper installed
8 B! x- ~& H- C7 T4 qByte 01 Bit 4 Heated Side Mirror installed6 F5 k3 X4 w7 W6 i2 y
Byte 01 Bit 5 Rear Lid Remote Opening
9 D- K; e" U2 MByte 01 Bit 6 Rear Lid Remote Opening - Release
% k( p5 w" U" {+ Y; VByte 01 Bit 7 Rear Wiper with Front Wiper continiously active
8 M" M( T& e8 U3 M5 a" x" oByte 02 Bit 0 Rear Wiper with Front Wiper intermittent active( F v- {. M0 w! B1 ]
Byte 02 Bit 1 Comfort Turn Signals
: @2 W9 d, d" ~: n1 Z: rByte 02 Bit 2 Cold Lamp Diagnosis active
2 {" J4 b- S4 B* l4 Z3 K1 ~' CByte 02 Bit 3 Load Management active! D0 N% s* v% [% j7 w, W
Byte 02 Bit 4 Coming-Home via
9 c' X( G8 j! O( ?2 Y. F (1 = Potentiometer / 0 = Adaptation)4 ~/ f2 i/ o$ h3 J; y; N+ P
Byte 02 Bit 5 Rear Lid Remote Openening
. {5 ^" S, W( \3 ^ [1 c (1 = Contact activated / 0 = Impuls activated) X" S- j7 q2 e% x* ]
Byte 02 Bit 6 Side Turn Signal Lights installed
3 ~& [0 z' K' }: MByte 02 Bit 7 Seat Heating installed (PR-4A3/4A4)7 c. y- z) F8 _
Byte 03 Bit 0 Realy Terminal 15 installed (with 2nd Battery): |9 `; r8 C M" ~% W0 ]9 a/ Y
Byte 03 Bit 1 Rear Fog Lights (1 = 1 active / 0 = 2 active)
0 a/ ^ B% ]. e. ~0 JByte 03 Bit 2 Reverse Driving Lights (1 = 1 active / 0 = 2 active)1 W$ J/ s5 \6 m0 R1 w% Q
Byte 03 Bit 3 Reverse Driving Light off when Rear Lid open$ z7 I# b" f4 c
Byte 03 Bit 4 Xenon-Shutter installed (Bi-Xenon)
/ D5 W" r7 g0 b* z9 `& vByte 03 Bit 5 Teardrop Wiping active. g5 Z' I/ [, V' s. V7 K
Byte 03 Bit 6 2nd Battery installed$ y" V/ B2 q) v6 ]. o
Byte 03 Bit 7 Rear Lights (1 = Back Light/Brake Light dimmed / 0 = Back Light dimmed)8 ~$ E5 a8 W' y* G5 \
Byte 04 Bit 0 Auxiliary Heating installed9 D! {3 ]: A7 {' H: k9 u7 T4 q+ ]9 h
Byte 04 Bit 1 Auxiliary Heating installed
9 y9 n/ {/ @2 J0 u; hByte 04 Bit 2 Trailer/Towing Device installed$ W4 k! W; G, \0 T7 B c2 _3 q
Byte 04 Bit 3 Memory Seats installed9 i! B$ ^, n6 z. u! k2 J5 ~3 Z
Byte 04 Bit 4 Activation of both Rear Fog Lights& d4 d! x, T1 {6 K4 D9 O. X9 t) T" f
Byte 04 Bit 5 Model (0 = Right Hand Drive / 1 = Left Hand Drive)
|7 ~+ F# O1 S" Q' H6 {Byte 04 Bit 6 Rear Fog Lights deactivated: m. X2 R7 r: @4 G$ U/ ?- N& I- G
Byte 04 Bit 7 Climatronic installed T2 D6 B( w9 E% C' T/ S# Y d' R
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…………. l9 {/ ]. q$ M5 S* z5 w: z
( h0 R) |$ a, S; @: f' X$ u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。) T1 q" a; m' _
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
1 b1 E5 ]0 U' h0 ~* h7 ~/ PByte 00 Bit 1 Xenon Headlights installed
4 i5 W [" o9 {$ K以及离家和回家大灯
A ]$ m; I2 U3 r6 {7 `Byte 00 Bit 5 Assistance Driving Light & Leaving Home
+ {: f2 E+ `3 [Byte 00 Bit 7 Coming-Home* L# |8 [4 g3 u [- j" S% F
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
- ~! T0 }8 ~7 g5 Q; R2 B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。
% X# a( \) v9 L/ T; Q' a. H2 v这样，再把byte00合并到09功能的长编码去，原来的长编码
' }5 q& E% e; c8 g) [8 B0 g+ f018D8F020004100000120C000000000000087F075C
% p* ]: d1 A& L# B就变成了! s+ ~2 R0 J& a7 D+ j& C
A38D8F020004100000120C000000000000087F075C
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