手把手教你使用长编码功能
U/ _: _) K$ V8 z" Q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:9 Z" a# z6 S/ {% n, }
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018D8F020004100000120C000000000000087F075C
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: y: I+ X1 Q/ M& d) h09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% v+ g$ O" T( q) ^8 z' \3 d% X
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。; _8 U& q. ^- `& _# R. D1 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。6 S: l7 t; e2 P, c; ?
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。
1 _' z% W/ ?4 S, D, e3 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。
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6 o2 H" ^9 [; A/ x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)
$ m( k4 V5 d: I8 QByte 00 Bit 1 Xenon Headlights installed8 ]) x/ ~+ f" I. v6 E2 i
Byte 00 Bit 2 Footwell Lights installed (PR-QQ4)
+ v! Y0 B& d0 s# W2 q; m. sByte 00 Bit 3 Daytime Running Lights (Scandinavia)+ q& u) [' T, Z7 }# H/ i8 M
Byte 00 Bit 4 Daytime Running Lights (North America)
& v7 V# D( U+ s; `Byte 00 Bit 5 Assistance Driving Light & Leaving Home
4 q' C& q1 d1 B: i7 iByte 00 Bit 6 Rain/Light Sensor installed
9 s/ g5 Y3 @# t- |: u1 KByte 00 Bit 7 Coming-Home
& i$ I4 h6 S+ }0 ^1 @+ zByte 01 Bit 0 Rear Seat Recognition installed
0 e2 T, S& Y8 x/ }Byte 01 Bit 1 Headlight Washer installed (PR-8X1)& J% e! W h, S3 J& @0 ]- B
Byte 01 Bit 2 Electronic Fuelpump Relay installed (Gasonline only)3 {$ m# Z4 r. h0 f
Byte 01 Bit 3 Rear Wiper installed
$ ~% x. Q$ x6 b( g5 uByte 01 Bit 4 Heated Side Mirror installed/ U3 I! h' v- |* q9 Y
Byte 01 Bit 5 Rear Lid Remote Opening- Z# m1 D: A# T# }3 T' m5 I% z7 r
Byte 01 Bit 6 Rear Lid Remote Opening - Release
' k, W/ Y" h; J+ Q8 p! RByte 01 Bit 7 Rear Wiper with Front Wiper continiously active2 f! I; b& C- u3 l0 o4 f+ m, ~
Byte 02 Bit 0 Rear Wiper with Front Wiper intermittent active
( h, J5 v& U* o5 nByte 02 Bit 1 Comfort Turn Signals
2 R# P& @! p1 e- JByte 02 Bit 2 Cold Lamp Diagnosis active
$ F4 [; {1 K# g+ g/ w! DByte 02 Bit 3 Load Management active
9 t4 ~3 n0 o w% K3 m, SByte 02 Bit 4 Coming-Home via
1 _9 ?" ]" P+ i, T% L6 O; L (1 = Potentiometer / 0 = Adaptation)' x8 L7 }3 y& |% T2 B
Byte 02 Bit 5 Rear Lid Remote Openening5 w7 ]6 K& u+ t: o8 e
(1 = Contact activated / 0 = Impuls activated)3 j# h# _, z7 p7 ^8 R) z1 E
Byte 02 Bit 6 Side Turn Signal Lights installed1 N+ Y) R7 H" q# C3 Q
Byte 02 Bit 7 Seat Heating installed (PR-4A3/4A4)
6 L# F; q F0 n9 w9 |0 FByte 03 Bit 0 Realy Terminal 15 installed (with 2nd Battery) G" a. N+ j- Z/ y! y4 o
Byte 03 Bit 1 Rear Fog Lights (1 = 1 active / 0 = 2 active)- \7 x) e5 @. T- h4 ?
Byte 03 Bit 2 Reverse Driving Lights (1 = 1 active / 0 = 2 active)
0 c" t- u/ A' Z( J3 AByte 03 Bit 3 Reverse Driving Light off when Rear Lid open
1 d+ ^6 P6 J: b2 S# g1 UByte 03 Bit 4 Xenon-Shutter installed (Bi-Xenon)/ W& T7 Y' Z2 U0 V$ o
Byte 03 Bit 5 Teardrop Wiping active
$ q* F2 l5 w' c7 z& U( ZByte 03 Bit 6 2nd Battery installed) i& [- o% r7 p8 v# q1 o9 c
Byte 03 Bit 7 Rear Lights (1 = Back Light/Brake Light dimmed / 0 = Back Light dimmed)
2 g6 M8 Y* `. s8 S0 KByte 04 Bit 0 Auxiliary Heating installed
* c3 {* @% {1 ^Byte 04 Bit 1 Auxiliary Heating installed
" N6 S# @1 X p3 MByte 04 Bit 2 Trailer/Towing Device installed
* L+ e" y! W- U1 z, P* f* {1 |Byte 04 Bit 3 Memory Seats installed- x4 W8 O/ R# \* f3 i: T
Byte 04 Bit 4 Activation of both Rear Fog Lights- \0 z# C+ s5 b3 F% I8 Y- w
Byte 04 Bit 5 Model (0 = Right Hand Drive / 1 = Left Hand Drive)
( x. |8 ^* B- G: r9 z( Y |- MByte 04 Bit 6 Rear Fog Lights deactivated
/ D4 K. [. C4 ^8 l- d$ k1 Y5 tByte 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。
+ Y" S0 I, n$ f4 w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
/ ^% F% R. [8 N) `! M$ QByte 00 Bit 1 Xenon Headlights installed
# k% _% G7 o2 f/ s9 y以及离家和回家大灯
' E' y, r1 p2 ]3 a5 _0 ]+ l& x% NByte 00 Bit 5 Assistance Driving Light & Leaving Home
/ w7 H+ J1 |0 c8 B- K) _Byte 00 Bit 7 Coming-Home
5 ]" b, X% q. |* w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
1 ~2 g8 B* Z; x0 |' F6 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。
7 m$ [/ R2 W+ \8 L) O6 x, E" h- ?这样,再把byte00合并到09功能的长编码去,原来的长编码
# Q9 W+ r5 L) i" t018D8F020004100000120C000000000000087F075C$ o r8 ^2 f$ o; C
就变成了- x, \& J1 S5 L0 N1 U" c, t: d
A38D8F020004100000120C000000000000087F075C* x1 R+ s! v2 }" K# A2 g6 p
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