手把手教你使用长编码功能
# P' z, h7 V8 M7 o6 I# s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:; ^' X7 p9 t5 {) n4 k
( w6 G5 L; P8 Z4 T018D8F020004100000120C000000000000087F075C
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( E4 p# B& N) ^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
# ~0 W- s# f y4 _, I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。" o1 {$ K6 W0 q6 H. I
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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。3 ~& c4 m. u0 P
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。. A) Q) |$ I$ y1 |
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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。
" [3 o3 P! `& X9 V& m, K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。
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Byte 00 Bit 0 Fog Lights installed (PR-8WB)
7 N6 w6 k& z# i! b% LByte 00 Bit 1 Xenon Headlights installed
; t% R: X+ {$ V1 HByte 00 Bit 2 Footwell Lights installed (PR-QQ4)7 A0 ~$ ]5 M0 w/ m( }( M
Byte 00 Bit 3 Daytime Running Lights (Scandinavia). j8 y/ {- l! d
Byte 00 Bit 4 Daytime Running Lights (North America) g8 B( `8 F- l2 A4 Z: h
Byte 00 Bit 5 Assistance Driving Light & Leaving Home
" z2 Q: Z# L Z6 M" }# yByte 00 Bit 6 Rain/Light Sensor installed
5 u' j2 y0 S& i0 O! ZByte 00 Bit 7 Coming-Home
$ |+ n/ F( X8 M. f" [( G( aByte 01 Bit 0 Rear Seat Recognition installed6 y1 r1 s( H1 A; G. {
Byte 01 Bit 1 Headlight Washer installed (PR-8X1)& z# `1 v! ]8 f& x4 v; ~" C& A
Byte 01 Bit 2 Electronic Fuelpump Relay installed (Gasonline only)# B( B: f/ p5 b* n
Byte 01 Bit 3 Rear Wiper installed; w& k2 x1 }# {, y* m
Byte 01 Bit 4 Heated Side Mirror installed
# P/ |' p& a& L3 Z" P5 NByte 01 Bit 5 Rear Lid Remote Opening
3 H. L% M3 W. t5 sByte 01 Bit 6 Rear Lid Remote Opening - Release+ j, B3 d+ \) ^/ L
Byte 01 Bit 7 Rear Wiper with Front Wiper continiously active
$ G$ f2 v* P. I1 FByte 02 Bit 0 Rear Wiper with Front Wiper intermittent active
6 c6 I+ X, Q o- O8 y5 i. [Byte 02 Bit 1 Comfort Turn Signals
% P* g- R _9 q9 E5 C5 a- z* DByte 02 Bit 2 Cold Lamp Diagnosis active3 F5 h9 P; k. W$ y1 S
Byte 02 Bit 3 Load Management active
6 c7 O- b. r. Z- h& OByte 02 Bit 4 Coming-Home via
* R+ a" Q5 d c1 ^6 ^- i3 z! { (1 = Potentiometer / 0 = Adaptation)- L( N) W2 T1 {8 B$ w) K
Byte 02 Bit 5 Rear Lid Remote Openening+ M( a0 m+ ]8 I& n# c; e& D3 K
(1 = Contact activated / 0 = Impuls activated)1 Z0 h$ J' _4 R6 e& Y( v: T
Byte 02 Bit 6 Side Turn Signal Lights installed: e n0 Y2 l& c
Byte 02 Bit 7 Seat Heating installed (PR-4A3/4A4). Q5 O: f8 A0 j3 j
Byte 03 Bit 0 Realy Terminal 15 installed (with 2nd Battery)
- w% W$ [, x6 {+ i( T# TByte 03 Bit 1 Rear Fog Lights (1 = 1 active / 0 = 2 active)
1 t! o7 ?$ @, p0 TByte 03 Bit 2 Reverse Driving Lights (1 = 1 active / 0 = 2 active). v, S3 J$ g. }. a$ _
Byte 03 Bit 3 Reverse Driving Light off when Rear Lid open' s7 X: j' C7 P1 _( l v
Byte 03 Bit 4 Xenon-Shutter installed (Bi-Xenon)! C9 l% U, D1 A. ^9 m! y
Byte 03 Bit 5 Teardrop Wiping active
- g# U/ q# y7 ^7 {; m! I$ m6 T* VByte 03 Bit 6 2nd Battery installed
! K4 h& U( Z$ \" o2 j* h- ?Byte 03 Bit 7 Rear Lights (1 = Back Light/Brake Light dimmed / 0 = Back Light dimmed)7 |+ ~( b% D5 a
Byte 04 Bit 0 Auxiliary Heating installed/ [; a& K/ @# H6 X7 W
Byte 04 Bit 1 Auxiliary Heating installed
) l) V, g0 F# a1 hByte 04 Bit 2 Trailer/Towing Device installed, m p' N2 R: d8 y+ D2 E
Byte 04 Bit 3 Memory Seats installed( s/ s( b6 S8 ?6 d: D; r3 z, M
Byte 04 Bit 4 Activation of both Rear Fog Lights* k2 d# f. P1 b6 X0 |4 ]# M2 b. i
Byte 04 Bit 5 Model (0 = Right Hand Drive / 1 = Left Hand Drive)
( A1 h4 C' ?' m" x s0 f0 q% \Byte 04 Bit 6 Rear Fog Lights deactivated( H% r6 @1 O* ~
Byte 04 Bit 7 Climatronic installed
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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。
0 m' C6 C) u7 K1 n c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. d5 c/ W4 B8 M1 c0 Z
Byte 00 Bit 1 Xenon Headlights installed( E2 h& N* s$ x6 w4 q" C
以及离家和回家大灯' i0 m: U! p" C5 G
Byte 00 Bit 5 Assistance Driving Light & Leaving Home4 L G( r. J) f# E0 k7 e
Byte 00 Bit 7 Coming-Home4 g- c) ]( E- i/ V
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$ d) {2 F: o0 u; b% d! w) K- O5 N
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。- Z( ^9 O. m8 ]0 Z2 ^
这样,再把byte00合并到09功能的长编码去,原来的长编码; B: c7 j2 g& j. {0 U8 {
018D8F020004100000120C000000000000087F075C
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6 R9 U* E8 f- @6 d6 lA38D8F020004100000120C000000000000087F075C& F \) g, ]* |' x1 c
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