手把手教你使用长编码功能
& ]; ]# U0 r) H- m+ 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:" O+ B: D* m' E
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018D8F020004100000120C000000000000087F075C
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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205 E4 Q( d8 t! Y$ \+ V
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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; S% r" K+ v6 `: u1 l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。5 a: b% C1 O- b& [* o+ S
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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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。
. i& W! z6 c2 t( |( v: I: i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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) L9 m4 x5 d. GByte 00 Bit 0 Fog Lights installed (PR-8WB)
7 |3 G3 w5 L4 N) u3 h" P5 ?Byte 00 Bit 1 Xenon Headlights installed
+ C! \, E" L4 j s4 mByte 00 Bit 2 Footwell Lights installed (PR-QQ4)
0 M% E4 a9 e; s. [, C: S+ MByte 00 Bit 3 Daytime Running Lights (Scandinavia)
6 n* _' Q$ c8 l1 f1 |Byte 00 Bit 4 Daytime Running Lights (North America)
2 m# `$ z1 @7 q+ nByte 00 Bit 5 Assistance Driving Light & Leaving Home5 q( ]4 O5 v" ^
Byte 00 Bit 6 Rain/Light Sensor installed
9 L! U' x6 i3 o. L7 qByte 00 Bit 7 Coming-Home. d) U4 p% {6 X4 r$ Q
Byte 01 Bit 0 Rear Seat Recognition installed
# C- |: U3 v1 ?7 ?* I7 T6 bByte 01 Bit 1 Headlight Washer installed (PR-8X1)& o, c" I, ^( F1 t2 y
Byte 01 Bit 2 Electronic Fuelpump Relay installed (Gasonline only)& l5 @- m& @# b% a; W5 n+ Q& y
Byte 01 Bit 3 Rear Wiper installed
* r& f" d" \" e$ [& k+ @$ HByte 01 Bit 4 Heated Side Mirror installed
9 C ?7 |4 a& KByte 01 Bit 5 Rear Lid Remote Opening
+ G9 r/ C" Q/ L% OByte 01 Bit 6 Rear Lid Remote Opening - Release
4 r6 k1 g: y' f0 K( J2 HByte 01 Bit 7 Rear Wiper with Front Wiper continiously active
' ]4 E9 D3 {* o* Q* N7 ]Byte 02 Bit 0 Rear Wiper with Front Wiper intermittent active/ ?2 `0 H3 n1 ]* u
Byte 02 Bit 1 Comfort Turn Signals% G7 \( |% y& P" T" z; r
Byte 02 Bit 2 Cold Lamp Diagnosis active- T% N# g+ T; K6 n
Byte 02 Bit 3 Load Management active
0 P; V2 ^4 I" U) a3 A9 c* KByte 02 Bit 4 Coming-Home via
6 p9 o# {6 S+ L! c) M (1 = Potentiometer / 0 = Adaptation)
Q6 W: K- {! Z8 KByte 02 Bit 5 Rear Lid Remote Openening
2 K2 g0 m+ {) { `0 ?( P7 _' v (1 = Contact activated / 0 = Impuls activated)) q# X' u* e8 ~3 s: Y
Byte 02 Bit 6 Side Turn Signal Lights installed. k6 p- K" p8 G
Byte 02 Bit 7 Seat Heating installed (PR-4A3/4A4)' y# N- d1 J% G# i$ Z/ \2 t
Byte 03 Bit 0 Realy Terminal 15 installed (with 2nd Battery)
% y4 `8 W z5 E; `Byte 03 Bit 1 Rear Fog Lights (1 = 1 active / 0 = 2 active)
. J; C$ T, G& Y+ B6 j4 kByte 03 Bit 2 Reverse Driving Lights (1 = 1 active / 0 = 2 active); `! V" v3 H% O4 N
Byte 03 Bit 3 Reverse Driving Light off when Rear Lid open9 [ Z. K/ j; \9 z' O
Byte 03 Bit 4 Xenon-Shutter installed (Bi-Xenon)
3 p5 u% M/ I9 H n! `% H; SByte 03 Bit 5 Teardrop Wiping active
5 p) {7 a/ a5 i# \' P( }/ y! f- zByte 03 Bit 6 2nd Battery installed
' e. j3 e! Q8 O* M7 SByte 03 Bit 7 Rear Lights (1 = Back Light/Brake Light dimmed / 0 = Back Light dimmed)0 D; |* d7 J% R
Byte 04 Bit 0 Auxiliary Heating installed
/ ~. \9 r/ [8 q& R& u3 D0 a6 MByte 04 Bit 1 Auxiliary Heating installed& Z2 r o$ O% m
Byte 04 Bit 2 Trailer/Towing Device installed
' i( K% O% O6 T& H1 k4 ]( a3 yByte 04 Bit 3 Memory Seats installed8 V. l5 C/ G+ ~- n( _6 Z
Byte 04 Bit 4 Activation of both Rear Fog Lights' Z( b, v. F0 J6 j9 o
Byte 04 Bit 5 Model (0 = Right Hand Drive / 1 = Left Hand Drive)7 z ^5 X: p! U$ I5 v# y, A# }
Byte 04 Bit 6 Rear Fog Lights deactivated
6 q/ u% v* L$ E6 lByte 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。
: f4 e% s/ ^' u. b" N0 N% @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
" |4 |! U4 S- {" F' g6 R8 ^Byte 00 Bit 1 Xenon Headlights installed
+ r5 u2 D2 G3 e3 I: S8 A! }以及离家和回家大灯$ s% j! o: K4 l A0 a5 f$ @
Byte 00 Bit 5 Assistance Driving Light & Leaving Home
R3 Q4 y+ N y& KByte 00 Bit 7 Coming-Home5 I( P, M9 V9 E( 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, ?- W; e6 P/ q9 H! O( y; ]; C
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。
5 g% o4 E, l' ?( h$ U; I" t' n" M这样,再把byte00合并到09功能的长编码去,原来的长编码9 S* P: |* F9 |( D, G! z+ D, g. Z" U) K
018D8F020004100000120C000000000000087F075C+ Z9 r& ~7 e: d& Y% ^
就变成了
+ u6 ^' k5 r3 M: k3 Q# k `" t; qA38D8F020004100000120C000000000000087F075C/ m( f. h2 @; T$ a/ V- F
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