手把手教你使用长编码功能
8 c+ }* H, O) F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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$ a2 s ~0 h+ M% s( a0 h! J018D8F020004100000120C000000000000087F075C
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; \) H( D- J# Q* T09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
. I7 z a5 Q5 H2 \2 S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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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。4 y3 p$ |" G; M/ n5 m& y: ], 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。 k5 p+ o: P3 r5 G
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。+ G/ Z7 J2 K) [. `
' Y, H: M5 j$ a8 Q4 Z' Z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。1 A+ M3 T4 v* s" V( q! R/ w
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Byte 00 Bit 0 Fog Lights installed (PR-8WB)$ G. l; h" W! Y- G# s
Byte 00 Bit 1 Xenon Headlights installed
8 a% V. d6 z) ]/ VByte 00 Bit 2 Footwell Lights installed (PR-QQ4)8 R. r" f& B/ c: A0 ^! a4 y# H- X
Byte 00 Bit 3 Daytime Running Lights (Scandinavia)
- t9 z& L6 I; g% c/ }. [; x0 uByte 00 Bit 4 Daytime Running Lights (North America)& g, l3 \+ o( E% X+ G
Byte 00 Bit 5 Assistance Driving Light & Leaving Home5 e/ l5 H j- ^: U
Byte 00 Bit 6 Rain/Light Sensor installed
1 d! V; [1 D+ J* f8 X( c# z# iByte 00 Bit 7 Coming-Home0 B! n/ n5 W4 \9 o: n7 E
Byte 01 Bit 0 Rear Seat Recognition installed' S( Y5 h) }8 z7 Q2 F# D
Byte 01 Bit 1 Headlight Washer installed (PR-8X1)/ D* p% X! x) t z3 P
Byte 01 Bit 2 Electronic Fuelpump Relay installed (Gasonline only) J: l( S3 ^6 l% P
Byte 01 Bit 3 Rear Wiper installed3 s2 m5 W9 v. r$ |9 Y7 p) Y5 O
Byte 01 Bit 4 Heated Side Mirror installed7 Y" l! ~. e# l: l& U+ ~' _+ `0 \# Z: o
Byte 01 Bit 5 Rear Lid Remote Opening/ ~: h5 g- \+ A3 a$ ^9 _7 E
Byte 01 Bit 6 Rear Lid Remote Opening - Release
; G) |) v* B0 bByte 01 Bit 7 Rear Wiper with Front Wiper continiously active# B7 X/ p* x/ d3 r. W
Byte 02 Bit 0 Rear Wiper with Front Wiper intermittent active
8 `9 K' |8 L. X5 `) j5 E" VByte 02 Bit 1 Comfort Turn Signals' R# a1 v' V* N
Byte 02 Bit 2 Cold Lamp Diagnosis active6 t7 R" K d7 t8 a) x2 n) V8 f/ H
Byte 02 Bit 3 Load Management active) [# o7 ~0 C5 e4 T2 _
Byte 02 Bit 4 Coming-Home via) s9 y. y2 [' f3 X' K( L3 `1 M) E
(1 = Potentiometer / 0 = Adaptation)
5 w0 o) K, w4 o0 l+ g2 uByte 02 Bit 5 Rear Lid Remote Openening+ C6 u) E J! v/ E4 H
(1 = Contact activated / 0 = Impuls activated)
7 o9 B+ O& m: V1 t0 IByte 02 Bit 6 Side Turn Signal Lights installed
0 _8 E8 g2 y7 @- T4 `$ |Byte 02 Bit 7 Seat Heating installed (PR-4A3/4A4)) j- e- R {( N; l3 U& I9 j$ Q
Byte 03 Bit 0 Realy Terminal 15 installed (with 2nd Battery)
% u' I" D: |( M T4 FByte 03 Bit 1 Rear Fog Lights (1 = 1 active / 0 = 2 active)
8 Y0 I) |" H& U9 s) XByte 03 Bit 2 Reverse Driving Lights (1 = 1 active / 0 = 2 active)
3 ~) s: a P+ l6 Y; o BByte 03 Bit 3 Reverse Driving Light off when Rear Lid open- j; B) d1 j4 X% s% }0 k M0 A; W4 v
Byte 03 Bit 4 Xenon-Shutter installed (Bi-Xenon)
. T6 t( x8 [5 k6 y+ B" SByte 03 Bit 5 Teardrop Wiping active; Q0 z/ }0 h- U! u4 W
Byte 03 Bit 6 2nd Battery installed
7 S8 Z* i8 E: H2 yByte 03 Bit 7 Rear Lights (1 = Back Light/Brake Light dimmed / 0 = Back Light dimmed)' |, p" y+ M, W; @6 j: q
Byte 04 Bit 0 Auxiliary Heating installed
8 Q3 ?+ L$ c) Y3 PByte 04 Bit 1 Auxiliary Heating installed6 P: w0 b* X- [+ t5 t
Byte 04 Bit 2 Trailer/Towing Device installed
+ y3 a( A; R# Y" nByte 04 Bit 3 Memory Seats installed/ {- b$ v/ O& k3 S4 Y
Byte 04 Bit 4 Activation of both Rear Fog Lights
6 E f+ Y9 }) ?: S2 WByte 04 Bit 5 Model (0 = Right Hand Drive / 1 = Left Hand Drive)/ H# F# f4 B$ M2 q* j) g/ s
Byte 04 Bit 6 Rear Fog Lights deactivated' E6 k- r% ^: u* E. q& o
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。2 \7 h; g& [6 j y$ p
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
- W' D9 o; p1 I& W- V" qByte 00 Bit 1 Xenon Headlights installed
' y1 D( A. q4 n0 [1 B9 ~9 s以及离家和回家大灯
4 q2 |! C/ s) Q( P& iByte 00 Bit 5 Assistance Driving Light & Leaving Home
3 I; D& ~. U7 _Byte 00 Bit 7 Coming-Home
6 X& [5 ? T% t# {3 Z. B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# V3 b9 T: {' Q
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。0 i$ h& l3 r: b! k
这样,再把byte00合并到09功能的长编码去,原来的长编码/ A5 ~8 r, ? v; R; ? h( i1 F: O
018D8F020004100000120C000000000000087F075C
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9 v. u2 p v" O5 g1 ?2 \, A5 KA38D8F020004100000120C000000000000087F075C
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