手把手教你使用长编码功能
- n: t) i5 l# ~, q8 E O+ c; W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:2 o( Y0 _' l$ Z, H. ]
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018D8F020004100000120C000000000000087F075C/ _4 }" z5 h7 F- o. ]
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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
6 {5 k/ s( c( [% f& n& M+ {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。# W' _ {* [4 N
1 B8 m% s# t# g( A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。5 g6 \) p' l1 m! \/ @, b# 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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: K# Y# I! n7 s1 b$ v* L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。- E/ G, a3 U8 z" J
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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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。' ?' r2 k2 M0 c4 ?9 x9 O) n
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Byte 00 Bit 0 Fog Lights installed (PR-8WB)
, E, g- \9 @ L8 A% }' w0 a& [7 oByte 00 Bit 1 Xenon Headlights installed
5 W8 C- I. w1 C5 M, G0 L" {. @: bByte 00 Bit 2 Footwell Lights installed (PR-QQ4)
, }6 v2 e. k* L8 xByte 00 Bit 3 Daytime Running Lights (Scandinavia)
0 ^9 e* k+ O3 F3 x# Y) ]Byte 00 Bit 4 Daytime Running Lights (North America)4 _2 i$ e2 Q) f
Byte 00 Bit 5 Assistance Driving Light & Leaving Home4 H5 w4 m4 v$ }) Q5 c/ o q
Byte 00 Bit 6 Rain/Light Sensor installed# u9 w0 y% n/ @9 Q
Byte 00 Bit 7 Coming-Home
5 V8 L0 A- e2 M+ H5 c6 v" C5 y4 jByte 01 Bit 0 Rear Seat Recognition installed3 a L. n3 d' [- K3 Z' P
Byte 01 Bit 1 Headlight Washer installed (PR-8X1)
' B T4 ?4 o) j* D8 t4 BByte 01 Bit 2 Electronic Fuelpump Relay installed (Gasonline only)
: I( T: w: K; d& vByte 01 Bit 3 Rear Wiper installed
' {7 `5 {* y ]2 ^5 C+ AByte 01 Bit 4 Heated Side Mirror installed
' G/ K; z* {0 \; o2 ~# EByte 01 Bit 5 Rear Lid Remote Opening# M0 ?0 R; _! A8 y
Byte 01 Bit 6 Rear Lid Remote Opening - Release. I0 X W- ?# Y/ S- j- L
Byte 01 Bit 7 Rear Wiper with Front Wiper continiously active
0 q j7 c( e, S6 ?6 nByte 02 Bit 0 Rear Wiper with Front Wiper intermittent active5 t& R9 S7 A. W6 h% [9 `
Byte 02 Bit 1 Comfort Turn Signals3 d* Y2 c* ^+ Q
Byte 02 Bit 2 Cold Lamp Diagnosis active
8 F# O, ?0 N1 C! ^8 ^& p& k6 ?Byte 02 Bit 3 Load Management active/ v: l. b% }: G* U6 J
Byte 02 Bit 4 Coming-Home via
6 o" T/ \2 ^# z4 D& }2 w (1 = Potentiometer / 0 = Adaptation)
/ a, o q I# V: n) { FByte 02 Bit 5 Rear Lid Remote Openening
' b A9 T$ P/ c- E8 R3 _+ @0 z (1 = Contact activated / 0 = Impuls activated)
$ @8 m8 T. b3 d, u+ q) S2 VByte 02 Bit 6 Side Turn Signal Lights installed
- ? c; K% d7 `8 u' x+ p% g$ C6 RByte 02 Bit 7 Seat Heating installed (PR-4A3/4A4)
8 j5 w. Y0 i& x0 s9 ]Byte 03 Bit 0 Realy Terminal 15 installed (with 2nd Battery)5 n" N. {1 I! ^ O6 y% k/ z1 i
Byte 03 Bit 1 Rear Fog Lights (1 = 1 active / 0 = 2 active)
- h, I3 M1 Z7 F2 E% o4 QByte 03 Bit 2 Reverse Driving Lights (1 = 1 active / 0 = 2 active)
/ X9 G5 z& j2 w `Byte 03 Bit 3 Reverse Driving Light off when Rear Lid open
# L8 ~7 B4 u8 t4 q: j# oByte 03 Bit 4 Xenon-Shutter installed (Bi-Xenon)4 ]9 }' m# _1 g5 l) m
Byte 03 Bit 5 Teardrop Wiping active: _% _! d+ z' ?# S9 j4 \6 f2 r
Byte 03 Bit 6 2nd Battery installed
# L8 z0 x: H7 b+ s$ g NByte 03 Bit 7 Rear Lights (1 = Back Light/Brake Light dimmed / 0 = Back Light dimmed)
7 @1 L8 g, w0 _+ A& M, ?' cByte 04 Bit 0 Auxiliary Heating installed
( V; w/ l& B1 Z: b9 V6 ZByte 04 Bit 1 Auxiliary Heating installed; R* ^: W+ ~' ]9 W
Byte 04 Bit 2 Trailer/Towing Device installed
. l7 d, H+ r, C8 r; \7 R& fByte 04 Bit 3 Memory Seats installed6 q( m4 y( w/ [4 A# w( o
Byte 04 Bit 4 Activation of both Rear Fog Lights
: y' C0 ` Q) ^4 S. g) WByte 04 Bit 5 Model (0 = Right Hand Drive / 1 = Left Hand Drive)
' _; B' D3 N1 y0 z* I4 zByte 04 Bit 6 Rear Fog Lights deactivated
+ H+ j! ~$ F& Y l9 ^& IByte 04 Bit 7 Climatronic installed& Z' K+ U U" k$ \# |
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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 x( _* e) D$ q7 o5 R1 z9 l4 D
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
% G$ ^( f: O7 Z; y1 g5 B. NByte 00 Bit 1 Xenon Headlights installed
. |/ E( T, I& N+ P( |以及离家和回家大灯
: n8 U3 ? S/ @. c! DByte 00 Bit 5 Assistance Driving Light & Leaving Home2 s6 N8 s; ]) V6 y+ k( k
Byte 00 Bit 7 Coming-Home
2 R$ o: N5 Q+ ~6 H- x0 t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
( ~' n L o/ s7 V8 t! G2 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。% t! a2 \9 o! U; V; i
这样,再把byte00合并到09功能的长编码去,原来的长编码
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就变成了) s7 p. q! h3 W+ a3 b
A38D8F020004100000120C000000000000087F075C
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