手把手教你使用长编码功能
t/ A# u9 R3 M* s# z: N+ N. c v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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2 ^/ T$ Z( B$ @& K0 \( l7 \' A: V/ W018D8F020004100000120C000000000000087F075C
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( X* e1 I' F: G9 f5 q( x* [8 ^3 j09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! L) [1 K1 u, Z& @: c: k
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。( o" Z3 \1 b6 k2 `8 ^3 Q2 [
! S4 r4 N2 S& Z& h7 A& 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。. Y7 }1 o% @2 x. E4 ^: {- 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。8 s* N; d2 e8 Y2 S4 k$ s& V
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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。
* k0 t4 P4 B( p; |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 H( Y; ~. L' p7 z) p$ J+ U6 h6 L
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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)
; U' d k$ P( ]) L; pByte 00 Bit 1 Xenon Headlights installed
H7 F2 ]& X, @& A T. WByte 00 Bit 2 Footwell Lights installed (PR-QQ4)& U1 M K0 ^6 g' x/ L: b
Byte 00 Bit 3 Daytime Running Lights (Scandinavia)
+ ?3 B) ^0 H7 I* vByte 00 Bit 4 Daytime Running Lights (North America)
3 W- i. `$ G+ p, I: N7 mByte 00 Bit 5 Assistance Driving Light & Leaving Home
+ w, j; D# f {) l( K3 V; IByte 00 Bit 6 Rain/Light Sensor installed1 M$ y% S0 Q7 Z; o3 G
Byte 00 Bit 7 Coming-Home4 j/ i' c* B1 I! _* e& ?
Byte 01 Bit 0 Rear Seat Recognition installed
( T2 x# s3 ^1 p5 o% @Byte 01 Bit 1 Headlight Washer installed (PR-8X1)% ~$ J) `9 v5 `, N7 v
Byte 01 Bit 2 Electronic Fuelpump Relay installed (Gasonline only), I7 _; q! ^) ?5 P
Byte 01 Bit 3 Rear Wiper installed
! a R+ L5 w8 N g+ MByte 01 Bit 4 Heated Side Mirror installed
7 \3 G9 r0 M9 tByte 01 Bit 5 Rear Lid Remote Opening' J, l+ q: u! |( f! y6 n4 m
Byte 01 Bit 6 Rear Lid Remote Opening - Release" d, ^8 A" E3 L
Byte 01 Bit 7 Rear Wiper with Front Wiper continiously active: m9 B& F( z( V# J6 o& r
Byte 02 Bit 0 Rear Wiper with Front Wiper intermittent active1 i) Z) g7 f/ m! s
Byte 02 Bit 1 Comfort Turn Signals& K/ n! B4 q5 a+ W
Byte 02 Bit 2 Cold Lamp Diagnosis active) v1 w+ b/ F) ~* G4 Z3 B# G
Byte 02 Bit 3 Load Management active
: A, n% G6 s Y" mByte 02 Bit 4 Coming-Home via9 O( E1 h/ u* M/ P5 Q! i
(1 = Potentiometer / 0 = Adaptation)) N+ ^* e2 i4 t3 H0 u3 x- D _; o
Byte 02 Bit 5 Rear Lid Remote Openening
2 f2 }8 |$ R5 D/ A, n (1 = Contact activated / 0 = Impuls activated)1 f2 f2 l' O4 Y
Byte 02 Bit 6 Side Turn Signal Lights installed( v' M5 ]7 M5 M3 r
Byte 02 Bit 7 Seat Heating installed (PR-4A3/4A4)4 T, k- W0 r) g; P S
Byte 03 Bit 0 Realy Terminal 15 installed (with 2nd Battery): ?1 V: j3 [! `1 X# J
Byte 03 Bit 1 Rear Fog Lights (1 = 1 active / 0 = 2 active)
) n) `& S) W6 _) k5 U5 O+ Q0 F/ DByte 03 Bit 2 Reverse Driving Lights (1 = 1 active / 0 = 2 active)2 P3 x$ e) H7 g$ _; j
Byte 03 Bit 3 Reverse Driving Light off when Rear Lid open. N: O6 n3 ~. T4 y4 c' m; v
Byte 03 Bit 4 Xenon-Shutter installed (Bi-Xenon)( C9 v# s" h$ E
Byte 03 Bit 5 Teardrop Wiping active$ s+ z' {/ V. T$ w5 u6 @; G+ S7 m" F
Byte 03 Bit 6 2nd Battery installed
" G) V6 k5 U& w, K3 K* M, s, b' d( mByte 03 Bit 7 Rear Lights (1 = Back Light/Brake Light dimmed / 0 = Back Light dimmed), e! A6 _9 X$ R: \
Byte 04 Bit 0 Auxiliary Heating installed
: Y- x; d) b" y3 p5 TByte 04 Bit 1 Auxiliary Heating installed" v) g0 a9 D. ~' }0 b
Byte 04 Bit 2 Trailer/Towing Device installed
7 U4 j! {, H/ w3 w# IByte 04 Bit 3 Memory Seats installed( w/ ^# @, u* m' T/ H9 X
Byte 04 Bit 4 Activation of both Rear Fog Lights
3 Y* G; ~6 n- `: l" pByte 04 Bit 5 Model (0 = Right Hand Drive / 1 = Left Hand Drive), z1 {: @' p6 {3 ^
Byte 04 Bit 6 Rear Fog Lights deactivated' R4 k) S% s9 z6 i" u2 _: X4 p
Byte 04 Bit 7 Climatronic installed, A; z4 n9 W! G( l% ]- F: ~
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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。: I: ~: U# c% [4 s$ K. R+ a4 [
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+ Y# b# r* X8 p( N
Byte 00 Bit 1 Xenon Headlights installed
" N6 m$ @0 b( C, r' O. b4 C以及离家和回家大灯
1 p' f8 N. J4 j9 eByte 00 Bit 5 Assistance Driving Light & Leaving Home7 v9 i# q; t' L' Q, ]; Z% y% H
Byte 00 Bit 7 Coming-Home
8 e7 s# _8 W2 O- h5 A; V! o W% C' n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
. `+ p7 j8 H% U- [! d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。) r! I! j2 j3 C& u+ @
这样,再把byte00合并到09功能的长编码去,原来的长编码
& L4 k8 a1 {9 Y) U$ S* b( I018D8F020004100000120C000000000000087F075C9 e: v0 c1 t: T* S
就变成了+ X: o' S7 F$ x& u/ A& s& ^" v
A38D8F020004100000120C000000000000087F075C0 a4 n( H! i9 ?
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