手把手教你使用长编码功能/ j0 X$ I* r8 u$ z
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) _4 k" G: D, x1 V2 q) J2 S6 {
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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
/ @& N! ^( l2 m" r" V& y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。4 z8 c4 u" p9 t$ B( k' E
8 E5 x/ P. \# {7 n( v& 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。
. q7 D/ b- X5 t7 l( ]' _! }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。
. J! D+ h0 G0 z7 j( Z1 z% C; R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。6 ]3 R" W# O$ S) d' B
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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)8 D" k I9 y! w
Byte 00 Bit 1 Xenon Headlights installed( q4 Z# H- j8 A* d8 x6 }9 D/ W! ~
Byte 00 Bit 2 Footwell Lights installed (PR-QQ4)0 P' H/ D3 l% N/ e1 a6 m
Byte 00 Bit 3 Daytime Running Lights (Scandinavia): a* l/ q9 |1 P$ X! G
Byte 00 Bit 4 Daytime Running Lights (North America)
5 @: C" q. y$ c8 z$ uByte 00 Bit 5 Assistance Driving Light & Leaving Home
) c! F' B8 v0 ?. [ QByte 00 Bit 6 Rain/Light Sensor installed
* w3 s0 `2 E+ FByte 00 Bit 7 Coming-Home! b, s2 e1 { D1 u, t
Byte 01 Bit 0 Rear Seat Recognition installed4 D d( ^- k6 y5 t- U
Byte 01 Bit 1 Headlight Washer installed (PR-8X1)
]- _8 a7 \2 |- dByte 01 Bit 2 Electronic Fuelpump Relay installed (Gasonline only)
2 B2 X' K3 R O# T, q& T7 uByte 01 Bit 3 Rear Wiper installed
! r, c0 G. i% F, QByte 01 Bit 4 Heated Side Mirror installed
- O# C( c2 M, x5 N4 c# l- E( lByte 01 Bit 5 Rear Lid Remote Opening3 R P9 E4 V, ^! Y* r
Byte 01 Bit 6 Rear Lid Remote Opening - Release
0 m1 i, r0 Q. ^( qByte 01 Bit 7 Rear Wiper with Front Wiper continiously active! O, R! O$ }8 N9 e& e( q
Byte 02 Bit 0 Rear Wiper with Front Wiper intermittent active7 `# z2 O+ \7 s- c) Y5 \: U# h
Byte 02 Bit 1 Comfort Turn Signals3 H* W. z5 e* k- y4 C% G- j; m
Byte 02 Bit 2 Cold Lamp Diagnosis active+ T, a& d2 P: c& t* H$ q" ~9 v
Byte 02 Bit 3 Load Management active
6 a9 D& p/ B' `# V' r4 `Byte 02 Bit 4 Coming-Home via
7 G: t8 u1 z( m* K$ K" b (1 = Potentiometer / 0 = Adaptation) \8 o4 Q- s8 D* a# t
Byte 02 Bit 5 Rear Lid Remote Openening
1 a1 l8 C6 Y8 P6 v9 b (1 = Contact activated / 0 = Impuls activated)
1 y4 T, ~" D: b" P: F0 Y/ |Byte 02 Bit 6 Side Turn Signal Lights installed0 h. A: }. q/ g; G4 s. ~: y/ K
Byte 02 Bit 7 Seat Heating installed (PR-4A3/4A4)
/ {) P6 ^, C( X' d% W0 t3 b8 p. VByte 03 Bit 0 Realy Terminal 15 installed (with 2nd Battery)
& Y0 {) o0 K. `& l. h, S+ \$ _7 zByte 03 Bit 1 Rear Fog Lights (1 = 1 active / 0 = 2 active)
' ?6 ~+ }9 Z3 y9 T' \Byte 03 Bit 2 Reverse Driving Lights (1 = 1 active / 0 = 2 active)
2 k1 Q0 G# ~9 AByte 03 Bit 3 Reverse Driving Light off when Rear Lid open& f+ q1 n0 F9 O8 Y4 I
Byte 03 Bit 4 Xenon-Shutter installed (Bi-Xenon)
7 l/ `8 t O4 Y @' }Byte 03 Bit 5 Teardrop Wiping active
) x" a! w. u! Q3 E/ eByte 03 Bit 6 2nd Battery installed3 w1 ~" K9 A5 ^8 `) K0 ?
Byte 03 Bit 7 Rear Lights (1 = Back Light/Brake Light dimmed / 0 = Back Light dimmed)2 c1 _" ~) j- t: X1 a/ D5 ` z
Byte 04 Bit 0 Auxiliary Heating installed0 O C" Z7 }. F# h: o
Byte 04 Bit 1 Auxiliary Heating installed
5 h8 U/ q& Z" vByte 04 Bit 2 Trailer/Towing Device installed
8 \3 M- ?# `! P0 b* t* ZByte 04 Bit 3 Memory Seats installed
f5 L, y1 c% T3 y3 Z( M) P ]Byte 04 Bit 4 Activation of both Rear Fog Lights
9 r4 }. g' k) _( p, HByte 04 Bit 5 Model (0 = Right Hand Drive / 1 = Left Hand Drive)3 B/ i3 Z# v/ B8 q" G' a
Byte 04 Bit 6 Rear Fog Lights deactivated* Q; {: Y2 O& U9 h
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。; x9 W' |5 j+ x6 F) I& H
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
$ x# a* V( G: P- FByte 00 Bit 1 Xenon Headlights installed" O* \; {7 t8 \: c# V
以及离家和回家大灯. Y0 U5 }. o0 M& _7 c! l
Byte 00 Bit 5 Assistance Driving Light & Leaving Home
% U# r8 g8 v/ z; D7 |Byte 00 Bit 7 Coming-Home) N# D' s2 j X6 a
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
& @# H6 L7 W; ~! A& d) ~) _% h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。
6 S U. R; ~1 a- N4 x% Q' l1 i8 O这样,再把byte00合并到09功能的长编码去,原来的长编码
/ N% W. @6 m7 z, e& n018D8F020004100000120C000000000000087F075C
* {3 E& G) X8 @4 _5 D就变成了6 ~# u4 `. ?; h4 r% W
A38D8F020004100000120C000000000000087F075C8 e' H L; N- e3 D7 k k
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