手把手教你使用长编码功能) {: y% g; t3 D) o! U1 E0 k$ a
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- E" I" F* h9 e2 A4 A2 V' K
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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200 b" e6 w+ h1 r/ j- ^
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 \& a& v0 X$ X7 F- r0 S. z: ]/ V
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。2 A! Q0 E/ o1 {8 z: z C
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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。
' m1 |6 A" j& a( h4 s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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" [4 X6 {# u0 w& S& 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。
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Byte 00 Bit 0 Fog Lights installed (PR-8WB)
6 r( k3 E+ h( i; i$ FByte 00 Bit 1 Xenon Headlights installed# i2 f# ?- i8 E( e
Byte 00 Bit 2 Footwell Lights installed (PR-QQ4)
9 B# N8 y$ n7 T) n% G0 W: qByte 00 Bit 3 Daytime Running Lights (Scandinavia)5 [! R- p1 w) z( w: a$ d2 h
Byte 00 Bit 4 Daytime Running Lights (North America)* C1 a/ I: |* |( e0 g
Byte 00 Bit 5 Assistance Driving Light & Leaving Home) j- ~' y/ D; s9 p3 m) l; M" ~( z
Byte 00 Bit 6 Rain/Light Sensor installed
0 o& G D! @: v8 f6 @Byte 00 Bit 7 Coming-Home+ l7 r- {1 i# }% k: y! l
Byte 01 Bit 0 Rear Seat Recognition installed3 [2 F: H& E- t0 S) Q) k
Byte 01 Bit 1 Headlight Washer installed (PR-8X1)
5 U1 C; c- F4 [; d% [Byte 01 Bit 2 Electronic Fuelpump Relay installed (Gasonline only)1 O# K O; R/ I! p. N
Byte 01 Bit 3 Rear Wiper installed
5 H w0 L7 E+ X% |Byte 01 Bit 4 Heated Side Mirror installed3 W1 Q m, V* a9 ?
Byte 01 Bit 5 Rear Lid Remote Opening
' n0 o0 |; @' OByte 01 Bit 6 Rear Lid Remote Opening - Release+ q8 |7 `/ X3 p
Byte 01 Bit 7 Rear Wiper with Front Wiper continiously active
/ w8 C/ e& {; D9 rByte 02 Bit 0 Rear Wiper with Front Wiper intermittent active
7 m3 I& n4 N2 m* I) h; x$ ?$ _! ~Byte 02 Bit 1 Comfort Turn Signals
) U3 q& e0 H* L- a9 W- G: lByte 02 Bit 2 Cold Lamp Diagnosis active; j$ I2 \( C6 Q4 H4 r
Byte 02 Bit 3 Load Management active
0 `4 m( U R0 {# c" PByte 02 Bit 4 Coming-Home via A+ W* G6 T: v/ |4 {- Q
(1 = Potentiometer / 0 = Adaptation)7 u6 a7 _3 t" a5 ^& t
Byte 02 Bit 5 Rear Lid Remote Openening5 x' P; f& `' R: c" W) s( V
(1 = Contact activated / 0 = Impuls activated): |0 A; Q" `: X0 V6 S( [- l
Byte 02 Bit 6 Side Turn Signal Lights installed/ `( n7 s' f# R! ^3 @6 o
Byte 02 Bit 7 Seat Heating installed (PR-4A3/4A4)
7 b6 s p% [: W. m5 D- ^% IByte 03 Bit 0 Realy Terminal 15 installed (with 2nd Battery)
- n* Z1 h% w: ^+ K$ H& w1 F: [Byte 03 Bit 1 Rear Fog Lights (1 = 1 active / 0 = 2 active)
6 _* z7 i! n2 a$ XByte 03 Bit 2 Reverse Driving Lights (1 = 1 active / 0 = 2 active)7 P' ^) g- f8 P) c9 T
Byte 03 Bit 3 Reverse Driving Light off when Rear Lid open
% W$ O, K N! R& f7 H$ @: ^Byte 03 Bit 4 Xenon-Shutter installed (Bi-Xenon)2 B) G/ v. T5 U$ J5 q z4 T$ R% i
Byte 03 Bit 5 Teardrop Wiping active
; J- M4 p. u" \9 |8 H# {- nByte 03 Bit 6 2nd Battery installed
6 D' [3 y+ w7 r! y5 A) j j4 S4 hByte 03 Bit 7 Rear Lights (1 = Back Light/Brake Light dimmed / 0 = Back Light dimmed)3 ]% a M- \& o1 R: l* w# `7 }
Byte 04 Bit 0 Auxiliary Heating installed
/ D) b# ~! f8 h- @8 qByte 04 Bit 1 Auxiliary Heating installed0 j* A, P- ]' l* |! V3 d
Byte 04 Bit 2 Trailer/Towing Device installed
8 l; u: E! z p3 oByte 04 Bit 3 Memory Seats installed
# U; r9 M2 h# ]9 w" a8 e7 j( X% uByte 04 Bit 4 Activation of both Rear Fog Lights" [6 P1 P1 R& t- ^, f0 S2 e
Byte 04 Bit 5 Model (0 = Right Hand Drive / 1 = Left Hand Drive)
_% B* h1 f0 n/ z# f( VByte 04 Bit 6 Rear Fog Lights deactivated
+ Q& N" Q c9 g$ w! p$ EByte 04 Bit 7 Climatronic installed# t* s: j) I2 Y8 [3 U/ `# m* j
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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。
4 u4 d0 m$ o* E) v4 U1 [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
0 z# [% d( S4 b4 _2 nByte 00 Bit 1 Xenon Headlights installed
$ }* S& p6 f9 Z: K+ \1 G" a6 S- |以及离家和回家大灯
( A+ e$ ?' @7 b6 S+ q& P+ S& ~Byte 00 Bit 5 Assistance Driving Light & Leaving Home4 N3 f( s7 C! `0 b$ d
Byte 00 Bit 7 Coming-Home
. C6 Z2 M1 f% T6 v" D' B' U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% _/ ]6 `% f* l
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。* F/ ^" S/ N5 ^2 D: [
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
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