手把手教你使用长编码功能
6 d0 D% H6 L3 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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4 @# Y; Y4 ?! p018D8F020004100000120C000000000000087F075C
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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
V* c0 V' Q6 L4 r# H a7 t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。
7 p8 o0 f8 L$ ]; I! i, c5 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。
/ ]- Z% h7 y6 t' |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。5 w7 ]& H( b0 ?* ]
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Byte 00 Bit 0 Fog Lights installed (PR-8WB)% w+ E1 `' k: v6 S: j4 O; v3 W
Byte 00 Bit 1 Xenon Headlights installed
3 C. H: l. v! pByte 00 Bit 2 Footwell Lights installed (PR-QQ4)
- g$ M( J! c6 }2 kByte 00 Bit 3 Daytime Running Lights (Scandinavia)9 Q% P% |( b6 {! B8 y
Byte 00 Bit 4 Daytime Running Lights (North America)5 ]0 B" `( D- {0 w/ V1 m+ _$ F
Byte 00 Bit 5 Assistance Driving Light & Leaving Home7 b0 O5 L1 Q# W5 y3 Y- D7 D
Byte 00 Bit 6 Rain/Light Sensor installed& u3 @8 T, @# ]5 s3 \& x
Byte 00 Bit 7 Coming-Home& N2 |# f) v/ Z$ E7 P
Byte 01 Bit 0 Rear Seat Recognition installed
- N, s. F5 E* r- N0 k8 O( H6 }Byte 01 Bit 1 Headlight Washer installed (PR-8X1)6 _2 ]0 J! z) Y7 l( {6 F o
Byte 01 Bit 2 Electronic Fuelpump Relay installed (Gasonline only): ?; ?9 r: h5 l. V* {
Byte 01 Bit 3 Rear Wiper installed
$ L2 G( p2 w5 N4 u" p8 }8 mByte 01 Bit 4 Heated Side Mirror installed
( S. L. D9 X1 ~" ?8 P$ l! eByte 01 Bit 5 Rear Lid Remote Opening
, n- d5 T6 g* f4 W4 vByte 01 Bit 6 Rear Lid Remote Opening - Release
7 l8 ~; Q3 a# Y! @0 \5 jByte 01 Bit 7 Rear Wiper with Front Wiper continiously active
f! Q, M, Z, S9 J2 gByte 02 Bit 0 Rear Wiper with Front Wiper intermittent active
! ] d: \6 l. YByte 02 Bit 1 Comfort Turn Signals
$ u& u% S8 W+ z5 ]) hByte 02 Bit 2 Cold Lamp Diagnosis active7 g# r9 N4 |5 B# }' Q
Byte 02 Bit 3 Load Management active) b& I/ _* s9 d8 @* ]
Byte 02 Bit 4 Coming-Home via4 y( I; B3 j$ ^# ?
(1 = Potentiometer / 0 = Adaptation)6 N# c. m2 R7 ` C0 Y, O, P9 X
Byte 02 Bit 5 Rear Lid Remote Openening8 I& ]( U! e/ v y/ k
(1 = Contact activated / 0 = Impuls activated)2 x5 u! B& {7 |# B
Byte 02 Bit 6 Side Turn Signal Lights installed. H, _, V: E9 A3 n, N! D! Y' S, f4 d
Byte 02 Bit 7 Seat Heating installed (PR-4A3/4A4)
; n0 ]! K. j: ?8 ^; B* V$ x3 bByte 03 Bit 0 Realy Terminal 15 installed (with 2nd Battery)
/ {2 Z/ M, E9 `, Z! G( k) j4 N0 ^' UByte 03 Bit 1 Rear Fog Lights (1 = 1 active / 0 = 2 active)
5 ~& u0 U! d f1 a3 tByte 03 Bit 2 Reverse Driving Lights (1 = 1 active / 0 = 2 active)
# `: p! f% @. |7 ]5 AByte 03 Bit 3 Reverse Driving Light off when Rear Lid open
# H' Z M0 B @# e! h5 T8 x5 G3 G" LByte 03 Bit 4 Xenon-Shutter installed (Bi-Xenon)' f- h; |- w* O8 x4 O H8 a% P- P
Byte 03 Bit 5 Teardrop Wiping active
8 p: [7 l. C1 T; tByte 03 Bit 6 2nd Battery installed: c3 d( N2 _; [$ v0 P% A7 x
Byte 03 Bit 7 Rear Lights (1 = Back Light/Brake Light dimmed / 0 = Back Light dimmed)
: k( [, f3 [, G4 x! N. B$ n3 zByte 04 Bit 0 Auxiliary Heating installed8 L4 F+ J( F( N: w
Byte 04 Bit 1 Auxiliary Heating installed
) j' R; J! e3 G! n! v( {7 QByte 04 Bit 2 Trailer/Towing Device installed' N/ Z, c y% }6 N1 B
Byte 04 Bit 3 Memory Seats installed
5 |7 v# i+ h6 W( `Byte 04 Bit 4 Activation of both Rear Fog Lights
+ g2 c8 A. W; V( N/ }1 K4 L( _Byte 04 Bit 5 Model (0 = Right Hand Drive / 1 = Left Hand Drive)
6 ^# ~) L( t3 L2 A1 l" G1 u, Q" oByte 04 Bit 6 Rear Fog Lights deactivated! ]( q' J( R" c4 w0 w
Byte 04 Bit 7 Climatronic installed6 Q) \- O* z$ w$ Z; O$ O/ a, r$ u
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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! }8 s5 k9 G9 [9 a
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
4 i4 \# Y) o* C0 C# h4 c+ f% kByte 00 Bit 1 Xenon Headlights installed
: Q( @. i+ q$ B `/ z以及离家和回家大灯+ M N2 t+ y" x2 ?1 w
Byte 00 Bit 5 Assistance Driving Light & Leaving Home3 ?5 R' A; ^# m. R$ R2 S, D
Byte 00 Bit 7 Coming-Home
8 D" D# W q1 h& J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101000119 N! o* d7 m, `8 _% I9 `7 x
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。
% \, E% }" L7 v1 A这样,再把byte00合并到09功能的长编码去,原来的长编码
~6 a( @( J3 l* U$ `9 F018D8F020004100000120C000000000000087F075C6 V! E# J6 }0 M1 h" E
就变成了
1 X2 G% t+ h% }A38D8F020004100000120C000000000000087F075C
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