手把手教你使用长编码功能
: Y1 h+ e+ N; K# u" Q! j( C, u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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/ m( }! ~1 a- E018D8F020004100000120C000000000000087F075C& c# i* K( B8 j
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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
- G e. E& m4 E& @ p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。& i" q" d% P, e% v2 _ ]$ l
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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。
0 N* r2 M1 b) ^5 x' S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。4 G5 A: x7 c( l3 r
$ h5 k4 T u' _% {/ t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。
% |( g' a7 Z( T2 f. m( T! g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)4 U" K% X4 B+ z
Byte 00 Bit 1 Xenon Headlights installed
' p9 \$ I. _) Q' z3 h: x6 }/ tByte 00 Bit 2 Footwell Lights installed (PR-QQ4)
! l, F$ Z" U; ? p6 G8 L qByte 00 Bit 3 Daytime Running Lights (Scandinavia)
) ^( ^3 w$ M% T1 Y/ l" K- ?Byte 00 Bit 4 Daytime Running Lights (North America)
; j! M; s* w' v4 h; P+ VByte 00 Bit 5 Assistance Driving Light & Leaving Home6 S+ W& z n9 t
Byte 00 Bit 6 Rain/Light Sensor installed- p2 q: I$ G# }. _) e
Byte 00 Bit 7 Coming-Home9 z- i4 m" j2 v5 G8 O. F' ]
Byte 01 Bit 0 Rear Seat Recognition installed
; X$ s# p! s5 Y9 bByte 01 Bit 1 Headlight Washer installed (PR-8X1)4 \6 R8 |5 @( M) y: Y
Byte 01 Bit 2 Electronic Fuelpump Relay installed (Gasonline only)' W3 \* t* g% [$ V- R t! `) _
Byte 01 Bit 3 Rear Wiper installed
: e+ X+ n! \3 e9 b$ l+ }Byte 01 Bit 4 Heated Side Mirror installed
: d6 u/ \+ |) [( p* q' \) oByte 01 Bit 5 Rear Lid Remote Opening
# B4 v& z$ p, `* Y+ B5 rByte 01 Bit 6 Rear Lid Remote Opening - Release
8 c1 {9 _' F" ]; `( RByte 01 Bit 7 Rear Wiper with Front Wiper continiously active
+ N2 ?% I) [6 r& X5 l% AByte 02 Bit 0 Rear Wiper with Front Wiper intermittent active
3 P; \8 f( b% ^8 u. R: LByte 02 Bit 1 Comfort Turn Signals
& a$ q( l& {+ JByte 02 Bit 2 Cold Lamp Diagnosis active
1 f( `9 n1 D5 |Byte 02 Bit 3 Load Management active
- @8 E" F7 i$ C) ~Byte 02 Bit 4 Coming-Home via
; H [! g K5 N- F1 z) x (1 = Potentiometer / 0 = Adaptation)8 F9 t+ v6 l: U0 m8 Y
Byte 02 Bit 5 Rear Lid Remote Openening
& |5 X, G! ~% X4 h, Z% ~! D9 o. V (1 = Contact activated / 0 = Impuls activated)7 N+ [! W7 y0 F# A4 ]
Byte 02 Bit 6 Side Turn Signal Lights installed" d1 x2 [ C( A& `: ^/ n( L$ Y2 W
Byte 02 Bit 7 Seat Heating installed (PR-4A3/4A4)
3 c8 d0 b9 g3 h! o+ Z) pByte 03 Bit 0 Realy Terminal 15 installed (with 2nd Battery)
# j# U2 z/ M6 m/ n9 I& MByte 03 Bit 1 Rear Fog Lights (1 = 1 active / 0 = 2 active)
$ x$ O, S- g/ OByte 03 Bit 2 Reverse Driving Lights (1 = 1 active / 0 = 2 active)& h0 Y7 l4 e9 `3 P( a$ N+ }0 S
Byte 03 Bit 3 Reverse Driving Light off when Rear Lid open
& Q. `; ? c& A! _' f$ F! OByte 03 Bit 4 Xenon-Shutter installed (Bi-Xenon)9 o( b, A; [9 f8 Q, U! y
Byte 03 Bit 5 Teardrop Wiping active# G, L/ d2 ^. I7 @3 \
Byte 03 Bit 6 2nd Battery installed
2 J4 M& F( f( N) [( v+ ?4 o6 bByte 03 Bit 7 Rear Lights (1 = Back Light/Brake Light dimmed / 0 = Back Light dimmed)( B6 z; E( I3 `& m# y, U8 B
Byte 04 Bit 0 Auxiliary Heating installed
5 K/ C: v0 X( f iByte 04 Bit 1 Auxiliary Heating installed/ N/ z( `6 E* Y) U J! k2 V. J
Byte 04 Bit 2 Trailer/Towing Device installed% ~4 m8 \+ t4 {1 d
Byte 04 Bit 3 Memory Seats installed
b6 B- B, d$ X$ OByte 04 Bit 4 Activation of both Rear Fog Lights
; l4 T6 o4 z4 zByte 04 Bit 5 Model (0 = Right Hand Drive / 1 = Left Hand Drive)
7 b% H/ G( L; {% ^Byte 04 Bit 6 Rear Fog Lights deactivated
9 R4 g2 I5 G- Q. EByte 04 Bit 7 Climatronic installed' v1 f. r) P1 x- ]- e; q
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' g2 t( P: j& u% I8 S1 F; [$ n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。& @$ H5 L$ _/ r1 x& Y
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6 I' G" k( F \/ G+ I
Byte 00 Bit 1 Xenon Headlights installed
& d7 _. g3 L6 t8 k1 F' l# e以及离家和回家大灯2 ]: F6 y6 d2 U8 Y
Byte 00 Bit 5 Assistance Driving Light & Leaving Home' N" s# B# f# F* ~. F8 u7 ]
Byte 00 Bit 7 Coming-Home
4 T/ j2 q+ L. @" 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 T' r3 u- 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。
& V$ W# U0 k# K. Q5 y) |这样,再把byte00合并到09功能的长编码去,原来的长编码
4 b e" N+ F9 U; ~: E% x5 Q018D8F020004100000120C000000000000087F075C
' l2 \1 y$ G8 V就变成了4 v4 E7 A5 y0 v/ o7 N
A38D8F020004100000120C000000000000087F075C
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