手把手教你使用长编码功能6 F7 z2 s5 c/ ?* b
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:
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018D8F020004100000120C000000000000087F075C& ]' w& {1 t" X9 j' r
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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20
& U) J( P( Q/ ~$ G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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8 z, m1 P4 G6 ?) O# f, q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。9 F1 T4 P- Y5 }# U3 [# E7 D5 \6 R1 I
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。
0 o3 h" _' M: g' H. V, 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。: l) C+ t% S' u
! {( W% b! U9 ?1 E5 m# S2 p) o" _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。& L1 x7 E: V2 D2 @ V; Y
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Byte 00 Bit 0 Fog Lights installed (PR-8WB)3 U/ G! X P4 @6 p
Byte 00 Bit 1 Xenon Headlights installed
' j! T- E8 n! k9 V mByte 00 Bit 2 Footwell Lights installed (PR-QQ4)2 Q: i5 B& w) ?) \/ k: R
Byte 00 Bit 3 Daytime Running Lights (Scandinavia)" m7 g3 U! R( F; ?
Byte 00 Bit 4 Daytime Running Lights (North America)6 Y/ `! `- E7 Y6 x) j [' v! b
Byte 00 Bit 5 Assistance Driving Light & Leaving Home, l2 u+ |4 l7 @+ E- m8 J9 U" Y
Byte 00 Bit 6 Rain/Light Sensor installed, _0 ` C: E. }$ x' b% }$ e( e- f7 f
Byte 00 Bit 7 Coming-Home" \ u9 L& I$ Z: b( t
Byte 01 Bit 0 Rear Seat Recognition installed( Z8 T$ ^4 W4 v
Byte 01 Bit 1 Headlight Washer installed (PR-8X1); s# j) ?3 [; \+ A
Byte 01 Bit 2 Electronic Fuelpump Relay installed (Gasonline only)
7 h7 a: b* f, D$ u* iByte 01 Bit 3 Rear Wiper installed: H- g* @! j1 |" W! u0 f D8 U/ @
Byte 01 Bit 4 Heated Side Mirror installed, K f2 ?% V! I- Z$ V
Byte 01 Bit 5 Rear Lid Remote Opening2 ` P4 \; o1 c' @/ p, E( Y
Byte 01 Bit 6 Rear Lid Remote Opening - Release
+ e) V' \' p+ o$ `+ cByte 01 Bit 7 Rear Wiper with Front Wiper continiously active
+ O' R5 p; @* K) ^Byte 02 Bit 0 Rear Wiper with Front Wiper intermittent active
7 \. z5 [8 Y2 _8 y* T! F+ hByte 02 Bit 1 Comfort Turn Signals1 n, V6 W. |+ L
Byte 02 Bit 2 Cold Lamp Diagnosis active3 [* O9 `5 v# \ J& v
Byte 02 Bit 3 Load Management active
6 A: d2 k, G- u3 R& s2 OByte 02 Bit 4 Coming-Home via( g1 J$ R+ O$ N5 {5 \- l& c
(1 = Potentiometer / 0 = Adaptation)8 n3 Y, u6 I" f8 c1 S0 ?8 X [
Byte 02 Bit 5 Rear Lid Remote Openening7 v9 z: T6 n1 k! c3 b& s% m
(1 = Contact activated / 0 = Impuls activated)* w8 c- z; y0 w7 F& ^9 q
Byte 02 Bit 6 Side Turn Signal Lights installed& f' @1 Q# O/ i0 n: J \) w" z# f
Byte 02 Bit 7 Seat Heating installed (PR-4A3/4A4)
) ^; f/ Q* j$ P" ~. V5 W1 `Byte 03 Bit 0 Realy Terminal 15 installed (with 2nd Battery)
/ ^# H4 N5 C7 q- d& \& jByte 03 Bit 1 Rear Fog Lights (1 = 1 active / 0 = 2 active)# F# c* g: B$ |/ j" K
Byte 03 Bit 2 Reverse Driving Lights (1 = 1 active / 0 = 2 active)
$ R# R4 z1 z/ F; C, yByte 03 Bit 3 Reverse Driving Light off when Rear Lid open/ G3 t; t1 m" V( y
Byte 03 Bit 4 Xenon-Shutter installed (Bi-Xenon)
0 j: H( e* N7 h/ }# W T: ]Byte 03 Bit 5 Teardrop Wiping active
* B% }0 p0 ~8 F- q7 l) q0 O) P' bByte 03 Bit 6 2nd Battery installed8 F! g8 z' P# }4 ~4 T4 A. m
Byte 03 Bit 7 Rear Lights (1 = Back Light/Brake Light dimmed / 0 = Back Light dimmed)3 n! L2 z! i6 X1 ^9 U
Byte 04 Bit 0 Auxiliary Heating installed6 j. b4 Q" c. Z% @. d; p, e" g
Byte 04 Bit 1 Auxiliary Heating installed. x0 U E9 v7 _* F7 Z$ ^2 K
Byte 04 Bit 2 Trailer/Towing Device installed) v/ Q' W1 x/ @2 x
Byte 04 Bit 3 Memory Seats installed
+ W, U% z9 R' S- YByte 04 Bit 4 Activation of both Rear Fog Lights8 Z6 I8 W0 I b2 D0 _
Byte 04 Bit 5 Model (0 = Right Hand Drive / 1 = Left Hand Drive)
0 H6 J! ~: X+ B. OByte 04 Bit 6 Rear Fog Lights deactivated% G- Q$ h6 S# z- e1 ?+ P+ i
Byte 04 Bit 7 Climatronic installed' K. W; t0 ^2 K9 i1 E
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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。8 y( n, Y4 C' h& c4 m0 x5 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
6 Y7 p! b, q$ \8 R* K' g5 oByte 00 Bit 1 Xenon Headlights installed, V2 B" `: d& M) X) u9 C
以及离家和回家大灯
5 f. y% C, E+ X+ o" XByte 00 Bit 5 Assistance Driving Light & Leaving Home
1 A$ f7 `3 {- d( |7 W/ ^; ~+ ZByte 00 Bit 7 Coming-Home
0 ^+ _ B4 n8 ?% k6 G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# y# h) @9 g# ]# |- p
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 Z- \! s# h0 d) d6 V/ I这样,再把byte00合并到09功能的长编码去,原来的长编码
( \( X" g! J6 h4 W018D8F020004100000120C000000000000087F075C
+ Y; Q/ e4 x5 [/ L( @就变成了
( u. N- d; j1 \: A7 MA38D8F020004100000120C000000000000087F075C
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