手把手教你使用长编码功能
6 y+ Y# E% m8 Z8 A1 {0 s$ a/ k& q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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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202 B/ K+ ]. n5 q/ v
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。
" T* U$ |7 N/ I$ \6 A/ e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。) A+ J5 ^# G1 Z
; [) S P7 N4 e9 E! S; q' G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。8 X# U8 W" ~; @8 l( H& s
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。+ N& c& ]5 ^& l6 G& }; T% t) f) K
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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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" r( L- _) m* g" O2 _Byte 00 Bit 0 Fog Lights installed (PR-8WB)- u) M; |- w: ^1 W$ }
Byte 00 Bit 1 Xenon Headlights installed
& Z. H% ~0 G8 l( R0 U1 a% [1 vByte 00 Bit 2 Footwell Lights installed (PR-QQ4)7 _- |9 z9 c$ u" m/ t+ D2 j
Byte 00 Bit 3 Daytime Running Lights (Scandinavia)" B4 n( a: ?. ~
Byte 00 Bit 4 Daytime Running Lights (North America)! y: X2 l1 y" ~
Byte 00 Bit 5 Assistance Driving Light & Leaving Home
( J2 }. l& Z: c- A* b, b. OByte 00 Bit 6 Rain/Light Sensor installed9 V: ]3 P% p- n
Byte 00 Bit 7 Coming-Home
7 L2 Y5 S% p Y% JByte 01 Bit 0 Rear Seat Recognition installed; s K' y4 y; G/ q0 O. U. F! a$ N
Byte 01 Bit 1 Headlight Washer installed (PR-8X1): m k% k8 J" y4 G- ?1 Z) D
Byte 01 Bit 2 Electronic Fuelpump Relay installed (Gasonline only): Z5 }, E# _0 V8 A9 a0 H
Byte 01 Bit 3 Rear Wiper installed
7 P& d7 u/ h" h* e$ DByte 01 Bit 4 Heated Side Mirror installed
% f+ m" d Y3 X; aByte 01 Bit 5 Rear Lid Remote Opening
6 c# E0 f; j: [3 ?# [$ BByte 01 Bit 6 Rear Lid Remote Opening - Release
/ X4 g% K% Z4 Z; G& Z, G5 QByte 01 Bit 7 Rear Wiper with Front Wiper continiously active. l6 N4 l$ K6 e7 ?
Byte 02 Bit 0 Rear Wiper with Front Wiper intermittent active! ]. c; Y, R2 X! n' t/ P3 L( I
Byte 02 Bit 1 Comfort Turn Signals& J. b& Q+ o, r. [8 p$ A
Byte 02 Bit 2 Cold Lamp Diagnosis active' H$ m5 ^, A T/ c/ p& i- W
Byte 02 Bit 3 Load Management active- v4 c! [$ R- k. R4 ^# m0 P' ~
Byte 02 Bit 4 Coming-Home via/ j- u$ r) h3 C/ j! Z
(1 = Potentiometer / 0 = Adaptation)9 V& K# W, y8 P8 T6 I8 {; [
Byte 02 Bit 5 Rear Lid Remote Openening7 K' [. Q3 N- ^0 b" F. y
(1 = Contact activated / 0 = Impuls activated)( }' [+ G$ i6 H7 J) c$ u1 K
Byte 02 Bit 6 Side Turn Signal Lights installed
6 S7 x7 u% `2 r/ B1 I, |4 uByte 02 Bit 7 Seat Heating installed (PR-4A3/4A4)5 D& l6 w- _; Y0 |- y7 I
Byte 03 Bit 0 Realy Terminal 15 installed (with 2nd Battery): C3 \. P! S* W/ q# |( [3 w
Byte 03 Bit 1 Rear Fog Lights (1 = 1 active / 0 = 2 active)5 W8 _7 D1 ]' M. ~ x* _3 R
Byte 03 Bit 2 Reverse Driving Lights (1 = 1 active / 0 = 2 active)' w+ x Y0 `) n. a% n/ L
Byte 03 Bit 3 Reverse Driving Light off when Rear Lid open8 v& i' h, U, q' A2 ^
Byte 03 Bit 4 Xenon-Shutter installed (Bi-Xenon)$ |& z c! I8 z/ N+ C. M* K
Byte 03 Bit 5 Teardrop Wiping active+ F; S: J1 M. r3 u; H$ G& p& U+ I
Byte 03 Bit 6 2nd Battery installed
8 P5 ]" H( V# l4 x) eByte 03 Bit 7 Rear Lights (1 = Back Light/Brake Light dimmed / 0 = Back Light dimmed)
+ |7 o. {$ W( [* v: _* m$ Z2 ^Byte 04 Bit 0 Auxiliary Heating installed
2 D5 i1 a" G6 x/ z0 _/ J4 cByte 04 Bit 1 Auxiliary Heating installed
8 p" ?# G- i' ]/ t, x8 gByte 04 Bit 2 Trailer/Towing Device installed
" x% S0 N+ {' T3 c) \Byte 04 Bit 3 Memory Seats installed- u" Z& Y* e" ^9 Z! N; X
Byte 04 Bit 4 Activation of both Rear Fog Lights
/ s( K& s# U5 H$ g& ~7 Z5 m. Z: kByte 04 Bit 5 Model (0 = Right Hand Drive / 1 = Left Hand Drive)4 q- n0 ?) l8 Y- g' m% T7 C
Byte 04 Bit 6 Rear Fog Lights deactivated) z+ \' X1 ]9 h. g9 S7 n
Byte 04 Bit 7 Climatronic installed. S) ]0 e2 H }# ?3 ^# S4 I
p6 y/ s0 a9 A5 @…………
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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。
' I- b4 b( \! Z9 M" q: {" o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; U. x( b/ F. E$ I
Byte 00 Bit 1 Xenon Headlights installed$ ~2 x* D. D4 W. F4 q" ?
以及离家和回家大灯
o* k( X$ y1 z, GByte 00 Bit 5 Assistance Driving Light & Leaving Home+ |5 M1 p2 b6 g, g! S+ V3 L
Byte 00 Bit 7 Coming-Home
* M0 C* b4 R' @& [: J$ {# _% B' @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
: P- o1 m) u4 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。& [. B* y6 R& ?' z& I7 M. k
这样,再把byte00合并到09功能的长编码去,原来的长编码; j# X5 | u. E( A
018D8F020004100000120C000000000000087F075C
9 {3 X2 }& z. L; Z! t' {# O- ?就变成了" M5 A4 t; N- j7 A1 z- W3 E0 h
A38D8F020004100000120C000000000000087F075C1 _: q2 r4 T" v0 }# n
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