手把手教你使用长编码功能
, ^% d' l) W0 b6 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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2 g& H6 M/ a7 L- \2 A018D8F020004100000120C000000000000087F075C
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% D9 l; `- _3 v' }0 ?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 J* y8 d4 b* F: g! S; 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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( {' I y9 l8 ]! z" g, c/ g6 m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。
$ {2 L7 Z; }1 p) c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。 T! R$ U2 ?( 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。
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Byte 00 Bit 0 Fog Lights installed (PR-8WB)
0 U: _3 k; r, b& x: QByte 00 Bit 1 Xenon Headlights installed
: k* r% C+ }. N! d, ]1 w1 W) aByte 00 Bit 2 Footwell Lights installed (PR-QQ4)2 O. J0 K q% R1 w3 Y
Byte 00 Bit 3 Daytime Running Lights (Scandinavia)
: { U3 t4 \8 P8 YByte 00 Bit 4 Daytime Running Lights (North America)
Z: V- |9 m$ V. l2 qByte 00 Bit 5 Assistance Driving Light & Leaving Home
3 E( e5 E1 {$ K j: K; EByte 00 Bit 6 Rain/Light Sensor installed) q* m% n) O: _" L7 T9 @+ X) \
Byte 00 Bit 7 Coming-Home
9 p. V+ B! v/ U* R, i4 w' XByte 01 Bit 0 Rear Seat Recognition installed
3 Q. [/ T2 ?, g$ [4 h, FByte 01 Bit 1 Headlight Washer installed (PR-8X1)- W% J4 o2 K4 F) a; T2 Z/ O- R
Byte 01 Bit 2 Electronic Fuelpump Relay installed (Gasonline only)
& v% Z) g, Q [0 aByte 01 Bit 3 Rear Wiper installed. ?1 }: O, O8 W% l7 e0 p
Byte 01 Bit 4 Heated Side Mirror installed
- J# R8 ^! p) PByte 01 Bit 5 Rear Lid Remote Opening
1 v# y, g3 L$ QByte 01 Bit 6 Rear Lid Remote Opening - Release
; e/ z8 ]8 t2 E% uByte 01 Bit 7 Rear Wiper with Front Wiper continiously active
$ ?7 H2 | e$ d+ _# @ LByte 02 Bit 0 Rear Wiper with Front Wiper intermittent active
: w9 O C( _8 s, G! p5 v6 h, T9 k5 qByte 02 Bit 1 Comfort Turn Signals
; h$ A0 u, ? ~ m, k! W+ ^Byte 02 Bit 2 Cold Lamp Diagnosis active8 q* }2 B/ F, }
Byte 02 Bit 3 Load Management active
1 P; p0 A, c; @5 j$ @( ~- N3 C& EByte 02 Bit 4 Coming-Home via) \5 W% [+ g$ b* j3 a5 ^$ C+ Y
(1 = Potentiometer / 0 = Adaptation)1 p8 N5 C1 c( ^/ F: B0 y5 J, t; c
Byte 02 Bit 5 Rear Lid Remote Openening
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3 O4 x$ b( l4 ^: v( V0 v6 e' \Byte 02 Bit 6 Side Turn Signal Lights installed
; E0 K: p0 X4 L1 GByte 02 Bit 7 Seat Heating installed (PR-4A3/4A4)
+ l: _$ b" M6 j# zByte 03 Bit 0 Realy Terminal 15 installed (with 2nd Battery)
?5 Y+ s) _% M: A9 n, CByte 03 Bit 1 Rear Fog Lights (1 = 1 active / 0 = 2 active)
' w9 m b1 W4 @ j8 P0 T9 ?Byte 03 Bit 2 Reverse Driving Lights (1 = 1 active / 0 = 2 active)/ R7 A, H. @5 K
Byte 03 Bit 3 Reverse Driving Light off when Rear Lid open
( }: F) Q7 b' o" I1 i$ ^Byte 03 Bit 4 Xenon-Shutter installed (Bi-Xenon)4 U9 v, u* Q( v$ H: v8 y
Byte 03 Bit 5 Teardrop Wiping active
) w* N" F$ N6 j" s! ^0 O a6 GByte 03 Bit 6 2nd Battery installed5 U8 u1 J, u( c6 T
Byte 03 Bit 7 Rear Lights (1 = Back Light/Brake Light dimmed / 0 = Back Light dimmed) I3 v8 C8 a1 A+ {, x4 h
Byte 04 Bit 0 Auxiliary Heating installed1 O" M/ @$ Y4 _6 ]
Byte 04 Bit 1 Auxiliary Heating installed
& w Z% p, @6 K. WByte 04 Bit 2 Trailer/Towing Device installed% ^( K, B$ ]- m
Byte 04 Bit 3 Memory Seats installed2 P' S+ a J+ X) O' R4 X2 O. J5 D, Q
Byte 04 Bit 4 Activation of both Rear Fog Lights
( D4 Z2 B' u) O5 \: }7 Z& kByte 04 Bit 5 Model (0 = Right Hand Drive / 1 = Left Hand Drive)
! |; Z* \7 c) @Byte 04 Bit 6 Rear Fog Lights deactivated
# t U$ h9 }/ |( C1 Q9 @Byte 04 Bit 7 Climatronic installed) e/ E. b' g' p- f
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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。+ P5 {6 |/ L) r# f# e/ [
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
7 O$ [! r6 h+ c+ U: E& y' d; uByte 00 Bit 1 Xenon Headlights installed
. B2 G$ n; n6 D8 O: N6 o以及离家和回家大灯
) J7 r G% b; W; \Byte 00 Bit 5 Assistance Driving Light & Leaving Home+ Z6 b* h; u# L/ w* f
Byte 00 Bit 7 Coming-Home8 E/ D( T7 P8 ?; {! I" X# D$ @
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
. r9 J, ?; A4 {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。4 O; ]7 |* o5 w7 p6 z0 c
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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$ u& L( M8 k( x" U就变成了
: T* i. e) e0 AA38D8F020004100000120C000000000000087F075C+ A$ c- g( X9 _, p0 t- T' E
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