手把手教你使用长编码功能
$ b! W* p: E7 }( |; B4 j7 I8 h: @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:' ?5 U% F) a% W+ O+ _' P$ M" l
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018D8F020004100000120C000000000000087F075C! @5 M, _" }& E9 s
5 _& I( m v$ Z/ U' f09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208 _, k* k9 O0 R. ?# M
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。
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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。
u3 p/ @6 I9 O: n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。2 D' `% S6 s. ?8 f( {2 M+ M7 j
9 Z# Q! u. R0 `* K E; J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。
7 |- ]# R6 N; S, c2 A7 s3 d% K/ n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。7 z( g9 l3 l" |2 m, q) k8 y
+ T2 f3 c9 G" ~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)! U/ S- ]! ~8 r7 r$ C# z
Byte 00 Bit 1 Xenon Headlights installed, \0 R1 l( l* M& d0 B
Byte 00 Bit 2 Footwell Lights installed (PR-QQ4)
5 W8 k! }8 V# [7 Z. SByte 00 Bit 3 Daytime Running Lights (Scandinavia)2 c' Y7 I2 y& u) h) s
Byte 00 Bit 4 Daytime Running Lights (North America)
+ I2 |3 ?5 ?- b3 }/ _! A5 d3 _+ gByte 00 Bit 5 Assistance Driving Light & Leaving Home
+ u5 R9 \; r! x& L# d7 Q3 s, N' `# kByte 00 Bit 6 Rain/Light Sensor installed
, Z5 b3 ~* i- ^8 oByte 00 Bit 7 Coming-Home
- d. A; z9 \3 H5 z; OByte 01 Bit 0 Rear Seat Recognition installed$ |$ t6 Z' _' ]2 {$ y3 [
Byte 01 Bit 1 Headlight Washer installed (PR-8X1)
- N* c1 c2 \# b0 xByte 01 Bit 2 Electronic Fuelpump Relay installed (Gasonline only)
8 o! H) l' T5 G9 e- V |9 _Byte 01 Bit 3 Rear Wiper installed! q( k# M2 w" }
Byte 01 Bit 4 Heated Side Mirror installed
7 O4 h3 i# t) ~' b- I7 A5 E* FByte 01 Bit 5 Rear Lid Remote Opening- ~" D ^; `# L% F; `- @
Byte 01 Bit 6 Rear Lid Remote Opening - Release5 K7 S7 J, S% s/ g$ G- [' t
Byte 01 Bit 7 Rear Wiper with Front Wiper continiously active1 p# T& n( O/ ]/ o6 C
Byte 02 Bit 0 Rear Wiper with Front Wiper intermittent active. h& |/ i u1 l. E
Byte 02 Bit 1 Comfort Turn Signals
8 j c- v' D. @6 e+ `( j) }Byte 02 Bit 2 Cold Lamp Diagnosis active
: e6 y( [& |8 J4 }0 pByte 02 Bit 3 Load Management active
7 i+ `5 I: K, h/ J1 Y$ p% dByte 02 Bit 4 Coming-Home via/ P O# e0 r7 v6 E& {! E
(1 = Potentiometer / 0 = Adaptation) N A* T. K& I' w
Byte 02 Bit 5 Rear Lid Remote Openening
2 F' @* W, O$ g% z3 { (1 = Contact activated / 0 = Impuls activated): p& _- y3 |) f; T3 r9 n2 @: f
Byte 02 Bit 6 Side Turn Signal Lights installed% z& R* `9 @6 Z' p J6 J' ]
Byte 02 Bit 7 Seat Heating installed (PR-4A3/4A4)! v3 X0 c* a$ P a0 N
Byte 03 Bit 0 Realy Terminal 15 installed (with 2nd Battery)
7 R/ W9 i5 w- F U* @$ \, HByte 03 Bit 1 Rear Fog Lights (1 = 1 active / 0 = 2 active)( @( c6 p1 |8 m8 z
Byte 03 Bit 2 Reverse Driving Lights (1 = 1 active / 0 = 2 active)
4 h+ W, V$ K% L1 a! }7 OByte 03 Bit 3 Reverse Driving Light off when Rear Lid open- K& T- \2 u- Y/ e) P
Byte 03 Bit 4 Xenon-Shutter installed (Bi-Xenon)
6 a# z! K. \+ X0 q7 P% e, vByte 03 Bit 5 Teardrop Wiping active8 v' u6 H4 W2 b- T# x, ?* z
Byte 03 Bit 6 2nd Battery installed3 N# n0 m5 F. t: ~0 U2 V, j
Byte 03 Bit 7 Rear Lights (1 = Back Light/Brake Light dimmed / 0 = Back Light dimmed)/ r" M. k9 V- q W
Byte 04 Bit 0 Auxiliary Heating installed
5 e4 j% L" q1 T% x3 m* WByte 04 Bit 1 Auxiliary Heating installed2 m3 f( ~6 w% x) b# m+ R
Byte 04 Bit 2 Trailer/Towing Device installed
9 N6 v9 a6 e: [8 L9 f( G9 D% AByte 04 Bit 3 Memory Seats installed! H* V' F7 a( e" B
Byte 04 Bit 4 Activation of both Rear Fog Lights1 j: ]. u$ T# r# o
Byte 04 Bit 5 Model (0 = Right Hand Drive / 1 = Left Hand Drive)
6 D8 \# l+ a7 y0 U0 ZByte 04 Bit 6 Rear Fog Lights deactivated" H+ f5 w0 ~ j; [) @
Byte 04 Bit 7 Climatronic installed
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…………
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- m/ C5 G& N% @1 l v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。
" r f9 ]) ~+ |5 Z$ E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- \. [" n4 e% g
Byte 00 Bit 1 Xenon Headlights installed
+ z2 r3 G/ v' @; Y; X1 R W/ S6 a以及离家和回家大灯
& s3 o. S) m$ k" oByte 00 Bit 5 Assistance Driving Light & Leaving Home
" M0 ]9 v* e& C! ]3 l7 S3 T) |' S* {Byte 00 Bit 7 Coming-Home
# }2 r4 I+ B. l. J5 @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101000112 R! O9 Z# H- O! _# w% R
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。3 c. n+ D: k0 W. t, s9 L, Y A
这样,再把byte00合并到09功能的长编码去,原来的长编码
9 A$ I; F* h! N- B1 L* Q6 M" [% c018D8F020004100000120C000000000000087F075C
3 S( ^$ O2 W4 c$ C就变成了* c" e0 r: h* L1 z7 i' ?: |
A38D8F020004100000120C000000000000087F075C8 j b; L& E+ S! V" g0 @
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