手把手教你使用长编码功能
: g' [3 G; D" m, h4 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:( s' K$ {6 Z) N( a
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018D8F020004100000120C000000000000087F075C
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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: l' A* K2 }% Z* V9 C% d9 Z; U- 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。
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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。' W; r4 E6 E% E7 ^& i8 V5 Y
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。- ~$ ]7 H# b( y. r. o! K- Y
; _9 X' X) B3 L/ Y+ B$ C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。- ?# d8 b0 K9 G5 \
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。
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Byte 00 Bit 0 Fog Lights installed (PR-8WB)$ z( g3 `; [* U8 d( Y( ^
Byte 00 Bit 1 Xenon Headlights installed- Y/ s: d+ ?# [/ ^7 N( T
Byte 00 Bit 2 Footwell Lights installed (PR-QQ4)
* f3 ~9 h9 Y9 l' @- m7 hByte 00 Bit 3 Daytime Running Lights (Scandinavia)
! P0 e7 r4 e$ u4 j8 oByte 00 Bit 4 Daytime Running Lights (North America), B6 P3 X# g$ T+ X7 a G
Byte 00 Bit 5 Assistance Driving Light & Leaving Home
# c5 O) g7 b$ u! |4 fByte 00 Bit 6 Rain/Light Sensor installed
0 {0 ]% W: [5 g1 d& z0 K6 \/ y& zByte 00 Bit 7 Coming-Home2 q7 X4 f0 X6 f( \/ l3 v
Byte 01 Bit 0 Rear Seat Recognition installed
5 w- e% j# t) v% z o0 aByte 01 Bit 1 Headlight Washer installed (PR-8X1), M& I, A9 f6 o
Byte 01 Bit 2 Electronic Fuelpump Relay installed (Gasonline only)
* h7 e% }/ U0 a7 aByte 01 Bit 3 Rear Wiper installed
, H/ N4 |! U) R5 s$ EByte 01 Bit 4 Heated Side Mirror installed0 U+ o1 Y6 W8 @) t" n$ q5 N7 P
Byte 01 Bit 5 Rear Lid Remote Opening3 k0 N8 |, z) p" ]! T
Byte 01 Bit 6 Rear Lid Remote Opening - Release
1 ?, z" t9 J. j+ CByte 01 Bit 7 Rear Wiper with Front Wiper continiously active
' Q0 n5 r$ x' Z$ mByte 02 Bit 0 Rear Wiper with Front Wiper intermittent active
7 A8 z$ q8 e# bByte 02 Bit 1 Comfort Turn Signals4 B1 ~/ \' m- f9 F) P; \4 t
Byte 02 Bit 2 Cold Lamp Diagnosis active# J5 p# w8 Y5 j! \/ @3 v) d+ N
Byte 02 Bit 3 Load Management active/ o4 F) }# O$ `# C
Byte 02 Bit 4 Coming-Home via
, R9 @" d# C0 ~$ R1 p: [9 h (1 = Potentiometer / 0 = Adaptation)
& ~# M! p( ?& B, N, oByte 02 Bit 5 Rear Lid Remote Openening
4 h) w# i$ ]0 q7 J (1 = Contact activated / 0 = Impuls activated)- B- o6 g( i1 O3 V
Byte 02 Bit 6 Side Turn Signal Lights installed
1 a) k/ i& p2 W8 u: _Byte 02 Bit 7 Seat Heating installed (PR-4A3/4A4)6 C c; n" f; o1 q) T4 H* W1 K
Byte 03 Bit 0 Realy Terminal 15 installed (with 2nd Battery)+ {& _* W i2 N7 S4 U) X i( {
Byte 03 Bit 1 Rear Fog Lights (1 = 1 active / 0 = 2 active)
7 b) ]9 Q& o. xByte 03 Bit 2 Reverse Driving Lights (1 = 1 active / 0 = 2 active)
/ ^" v0 ~! g; xByte 03 Bit 3 Reverse Driving Light off when Rear Lid open
4 E: T' V! q& j1 \/ h& ? @& V2 e' PByte 03 Bit 4 Xenon-Shutter installed (Bi-Xenon)
( {' g6 P& y" gByte 03 Bit 5 Teardrop Wiping active# {% O0 X! R4 O/ i+ F! _8 d6 [
Byte 03 Bit 6 2nd Battery installed
, I! k! ^4 x1 k/ RByte 03 Bit 7 Rear Lights (1 = Back Light/Brake Light dimmed / 0 = Back Light dimmed)4 \; W2 {. I" T/ {5 O# O# r
Byte 04 Bit 0 Auxiliary Heating installed% Q$ E# ?' r8 K" W `7 ?# p" M
Byte 04 Bit 1 Auxiliary Heating installed
3 W5 n6 K2 P: s% X0 F# q7 PByte 04 Bit 2 Trailer/Towing Device installed& o, l& v# ^8 Q" H. d
Byte 04 Bit 3 Memory Seats installed- Q7 a6 w- K9 N" Z$ E
Byte 04 Bit 4 Activation of both Rear Fog Lights
* e# s3 i. o5 M4 c! L' YByte 04 Bit 5 Model (0 = Right Hand Drive / 1 = Left Hand Drive)+ R3 P+ L7 ~! K$ h3 l
Byte 04 Bit 6 Rear Fog Lights deactivated
, d0 y- Y& ?8 \Byte 04 Bit 7 Climatronic installed
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…………
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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。9 |# H* e, F% q
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
& i( X9 k: U0 y& |0 J9 ?) n% hByte 00 Bit 1 Xenon Headlights installed( H; g8 U! K; O! b/ X7 b' @1 w w, J
以及离家和回家大灯7 }; ~6 T" B& @5 M9 U6 B5 O0 N
Byte 00 Bit 5 Assistance Driving Light & Leaving Home
- `& Y5 w% u k7 xByte 00 Bit 7 Coming-Home
) R- U k- z) Z0 R# s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
9 u% O. L( [: p! x3 P9 H) f) M0 M2 B2 j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。+ `5 a) h0 y! B- \
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
% U$ K) H, _% UA38D8F020004100000120C000000000000087F075C
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