手把手教你使用长编码功能
! b6 B4 J, U) F) t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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018D8F020004100000120C000000000000087F075C6 j' D! g$ `6 G* R
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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200 E" p2 c. o: m: l2 R
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。3 N9 h; F0 D2 G; ?: 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。 o( _* U3 C" N, r2 c9 C# `
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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。
; J" w& N; ?/ f2 x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。% }. }1 j1 _" A+ [: r+ T
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Byte 00 Bit 0 Fog Lights installed (PR-8WB)8 c* g3 {) e" k3 u
Byte 00 Bit 1 Xenon Headlights installed
) P8 P# A0 W5 R9 fByte 00 Bit 2 Footwell Lights installed (PR-QQ4)0 D B* l# L2 w, s8 e
Byte 00 Bit 3 Daytime Running Lights (Scandinavia)
3 E: m% w- h: W% i% }2 CByte 00 Bit 4 Daytime Running Lights (North America)( d/ L3 [& C# s" c4 v* D: z
Byte 00 Bit 5 Assistance Driving Light & Leaving Home
- H) I: Z. _/ a' X' ~: y! `( HByte 00 Bit 6 Rain/Light Sensor installed4 p5 M6 u0 O! [/ ?% n' U/ U
Byte 00 Bit 7 Coming-Home+ l* { Z% u4 m3 I) k; }' S( [
Byte 01 Bit 0 Rear Seat Recognition installed3 x9 v2 u7 y% c' `
Byte 01 Bit 1 Headlight Washer installed (PR-8X1), z$ K; M( h+ e4 D! V
Byte 01 Bit 2 Electronic Fuelpump Relay installed (Gasonline only)3 N6 x. A% n4 Z7 Y' K9 {
Byte 01 Bit 3 Rear Wiper installed1 `) o7 \, c( Z
Byte 01 Bit 4 Heated Side Mirror installed7 a: O- a% K( ?$ N" {, T( L8 c1 M
Byte 01 Bit 5 Rear Lid Remote Opening# j: T" _: S9 R6 Z x
Byte 01 Bit 6 Rear Lid Remote Opening - Release
; G! K" I: H \9 D: }Byte 01 Bit 7 Rear Wiper with Front Wiper continiously active
3 A, V2 s W) G1 GByte 02 Bit 0 Rear Wiper with Front Wiper intermittent active
* V2 K' V+ _& `9 d; _Byte 02 Bit 1 Comfort Turn Signals. Z" d; b( x3 W* W" }9 P
Byte 02 Bit 2 Cold Lamp Diagnosis active+ t- A# G8 [+ x& e# ^ q0 j# Q
Byte 02 Bit 3 Load Management active
, C# s. f! `, M" D, S jByte 02 Bit 4 Coming-Home via
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' a2 H3 r. \% A# OByte 02 Bit 5 Rear Lid Remote Openening
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B7 v+ M8 A4 G% Y& _Byte 02 Bit 6 Side Turn Signal Lights installed. f- |1 x) X( d8 f$ t) f3 b* v
Byte 02 Bit 7 Seat Heating installed (PR-4A3/4A4)
# n6 p( b D; ]. L% HByte 03 Bit 0 Realy Terminal 15 installed (with 2nd Battery)
' J8 W) B( s3 v2 a2 r" Q# }Byte 03 Bit 1 Rear Fog Lights (1 = 1 active / 0 = 2 active)8 a5 q& y9 r' D9 d) x5 c
Byte 03 Bit 2 Reverse Driving Lights (1 = 1 active / 0 = 2 active)
! w$ d9 g6 H: ]2 V. ]9 LByte 03 Bit 3 Reverse Driving Light off when Rear Lid open- O5 X" }3 F1 L7 ?! c
Byte 03 Bit 4 Xenon-Shutter installed (Bi-Xenon)/ G8 l: I; Q" d" K, ~3 A7 {9 ?2 T$ c
Byte 03 Bit 5 Teardrop Wiping active3 r4 \: _4 T- k
Byte 03 Bit 6 2nd Battery installed; S! W0 l0 ^( f S. Y
Byte 03 Bit 7 Rear Lights (1 = Back Light/Brake Light dimmed / 0 = Back Light dimmed)
C y+ b4 l+ h( h$ f7 v+ KByte 04 Bit 0 Auxiliary Heating installed4 [6 o" [2 i6 ]) ^& [" g
Byte 04 Bit 1 Auxiliary Heating installed5 ^9 [" S0 c" B( j0 h+ W- Z) g+ ~" [
Byte 04 Bit 2 Trailer/Towing Device installed/ m) q: ^7 y# g7 @
Byte 04 Bit 3 Memory Seats installed
9 S ?8 |! Q* N/ y" {1 C* s9 \& PByte 04 Bit 4 Activation of both Rear Fog Lights' h$ Z9 ?+ j- S- I- d' K0 J
Byte 04 Bit 5 Model (0 = Right Hand Drive / 1 = Left Hand Drive)2 C- r! d) R: a% T/ W, ^6 J
Byte 04 Bit 6 Rear Fog Lights deactivated) l6 c! g+ ?! y, E
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。
; f1 c3 s# y/ ?1 x( c5 }0 C! h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
; B0 F7 J; R8 w) fByte 00 Bit 1 Xenon Headlights installed
j9 b4 ~! t: I, i以及离家和回家大灯, H# j- @5 N0 s4 C: z
Byte 00 Bit 5 Assistance Driving Light & Leaving Home
f2 `* C; C: o2 \" EByte 00 Bit 7 Coming-Home4 K% C" A4 e. m7 d" t" z5 e N
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 R6 c: F+ ^5 @! E
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。- p& Z" I7 ~6 x3 f
这样,再把byte00合并到09功能的长编码去,原来的长编码. Q% O1 J( L1 K5 r2 k4 V
018D8F020004100000120C000000000000087F075C( p- ^5 |7 g" S+ ]8 N* F
就变成了 {" x" C3 {9 U; O B1 q( @* B7 R
A38D8F020004100000120C000000000000087F075C
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