手把手教你使用长编码功能
: h: k R* I4 @) g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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018D8F020004100000120C000000000000087F075C0 a6 |$ c! u9 {; P, u7 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
" B$ d5 n7 F9 s$ a5 Z; I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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3 K1 a4 G% l' x9 w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。
- t3 J3 d' N1 T5 o( i% J4 z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。; Q2 P W L7 f Y% ?
' B) c4 _) ?9 J4 i% a5 }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。
; D B7 F; w. a% z3 Y* z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)5 N- g j, V+ u3 H I, J" U
Byte 00 Bit 1 Xenon Headlights installed
- \- T- G A& u2 NByte 00 Bit 2 Footwell Lights installed (PR-QQ4)
5 g0 S* N- T0 F; H% J1 ~Byte 00 Bit 3 Daytime Running Lights (Scandinavia)
6 d9 [# T1 N/ t2 |Byte 00 Bit 4 Daytime Running Lights (North America); C. `$ m1 ]9 b3 i
Byte 00 Bit 5 Assistance Driving Light & Leaving Home
, [+ j8 \4 Y8 X) mByte 00 Bit 6 Rain/Light Sensor installed1 w6 {* l- e2 g( F- N
Byte 00 Bit 7 Coming-Home
( R% R5 Y0 T1 w: a8 [# UByte 01 Bit 0 Rear Seat Recognition installed9 O' C) |. ?* a) \
Byte 01 Bit 1 Headlight Washer installed (PR-8X1)
' s- R6 |4 H, U. Z9 ?Byte 01 Bit 2 Electronic Fuelpump Relay installed (Gasonline only)( l$ [8 p L4 ]5 Z9 z& C& [
Byte 01 Bit 3 Rear Wiper installed; u/ ]3 ?1 U7 o' Y d9 B% W+ ?
Byte 01 Bit 4 Heated Side Mirror installed
6 `+ P$ C" I5 P; qByte 01 Bit 5 Rear Lid Remote Opening/ |+ @" `5 q+ B% G# C
Byte 01 Bit 6 Rear Lid Remote Opening - Release( v& X2 @& H# ?% l6 A
Byte 01 Bit 7 Rear Wiper with Front Wiper continiously active0 e: Z/ N" r6 D' R5 @
Byte 02 Bit 0 Rear Wiper with Front Wiper intermittent active, @# g2 c' d# l! k% R$ F
Byte 02 Bit 1 Comfort Turn Signals& `4 x' K7 Q! k3 e
Byte 02 Bit 2 Cold Lamp Diagnosis active
; V' z, @! P; Y( }* G8 YByte 02 Bit 3 Load Management active
5 m H5 \( k3 }. a5 s/ OByte 02 Bit 4 Coming-Home via
! a L9 P7 C# c6 Y' I5 t2 H (1 = Potentiometer / 0 = Adaptation)
6 q6 m% T: U+ B8 oByte 02 Bit 5 Rear Lid Remote Openening& Q6 g( ` A7 ]& }
(1 = Contact activated / 0 = Impuls activated)0 g1 }* V5 Q3 O9 Z$ b6 X
Byte 02 Bit 6 Side Turn Signal Lights installed
2 H8 _( g L d. U+ `4 R ?9 @( \Byte 02 Bit 7 Seat Heating installed (PR-4A3/4A4)
U& q# v4 E6 x4 r8 J3 V- \Byte 03 Bit 0 Realy Terminal 15 installed (with 2nd Battery)
' ^' S# J. `4 h1 i7 s8 iByte 03 Bit 1 Rear Fog Lights (1 = 1 active / 0 = 2 active)
0 g& b) K& [, r; U4 v+ X u- YByte 03 Bit 2 Reverse Driving Lights (1 = 1 active / 0 = 2 active)
\' G$ m2 `: DByte 03 Bit 3 Reverse Driving Light off when Rear Lid open
& x8 l9 |& |0 {7 b' uByte 03 Bit 4 Xenon-Shutter installed (Bi-Xenon)
4 E1 L5 B) p! t9 }3 U$ A6 BByte 03 Bit 5 Teardrop Wiping active
% a: a! ~- {* r; V- zByte 03 Bit 6 2nd Battery installed
~; c, Y" }% R( g0 CByte 03 Bit 7 Rear Lights (1 = Back Light/Brake Light dimmed / 0 = Back Light dimmed)
, w: i$ E; d: \: }, PByte 04 Bit 0 Auxiliary Heating installed. K; l1 a- z3 _6 e( r
Byte 04 Bit 1 Auxiliary Heating installed
& _2 ]: O0 G2 y. @Byte 04 Bit 2 Trailer/Towing Device installed
. t8 j8 R: T9 p2 K1 kByte 04 Bit 3 Memory Seats installed9 N8 X7 |0 E) [$ N7 ?$ Y
Byte 04 Bit 4 Activation of both Rear Fog Lights
/ m% e6 K9 O) V$ k, nByte 04 Bit 5 Model (0 = Right Hand Drive / 1 = Left Hand Drive)4 |: S% Q+ ^/ q: e
Byte 04 Bit 6 Rear Fog Lights deactivated$ L+ F; L: u d# K
Byte 04 Bit 7 Climatronic installed& \+ K& }) L9 p8 }$ z2 z: F
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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。
) p1 o/ q V1 U7 ?1 _/ K! e* I! W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 ?. v6 Q, N, e3 b- `5 F3 cByte 00 Bit 1 Xenon Headlights installed
" n8 ]5 k+ J E以及离家和回家大灯& s q! _ x& ?8 ?* u
Byte 00 Bit 5 Assistance Driving Light & Leaving Home
8 n* h; E! P' m) a) Z) z2 _7 p9 {. NByte 00 Bit 7 Coming-Home
1 c) ]( ~ R" z5 j7 v1 ]: ]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101000113 C1 z. j3 t+ {- g; n
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。
( t5 F9 F) b5 G; g4 T6 w( ^这样,再把byte00合并到09功能的长编码去,原来的长编码; E4 w+ \9 R& `1 p
018D8F020004100000120C000000000000087F075C/ ?2 k6 E7 f2 Y! a3 r3 x) B; g
就变成了' N' {' s, _# C" N( a6 e4 {, A
A38D8F020004100000120C000000000000087F075C
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