手把手教你使用长编码功能
& P+ j; s0 s, d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. l3 U$ }) f1 @9 c) D8 T
6 N- K! K% k. e; o: f3 D. {4 A2 O t09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
* [/ b9 x, s- u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。' P T `6 n$ L/ E
. I# d, T9 D3 S6 ]6 n0 g* i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 {7 c: t2 p9 c/ N- K- ?+ l
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。9 G+ L! ]: }* u5 }" e6 {
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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。, q9 x# X6 J9 c+ V9 o( H$ @; `9 f3 r
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。$ E. k. z& J2 B% ]6 N9 [
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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。7 ^/ H1 }+ u1 {' o
7 k$ ~- k5 @1 m$ wByte 00 Bit 0 Fog Lights installed (PR-8WB)
3 T# @, S9 @* G6 \( bByte 00 Bit 1 Xenon Headlights installed7 S' W- }, {4 ~! Y
Byte 00 Bit 2 Footwell Lights installed (PR-QQ4)* Y. F5 f' Z" \8 h- | i" f
Byte 00 Bit 3 Daytime Running Lights (Scandinavia)+ G. G2 s7 N4 K2 y" S/ J
Byte 00 Bit 4 Daytime Running Lights (North America)
* ^( A9 g/ y) J$ C3 ?Byte 00 Bit 5 Assistance Driving Light & Leaving Home
E9 t6 ?/ n9 r1 l2 f# bByte 00 Bit 6 Rain/Light Sensor installed2 X/ {& }9 \2 V5 E
Byte 00 Bit 7 Coming-Home; M7 L. e) w" S" b4 N Z9 z
Byte 01 Bit 0 Rear Seat Recognition installed
/ T% r4 r, e2 v. i/ k: lByte 01 Bit 1 Headlight Washer installed (PR-8X1)) U8 k: }; P+ s& ]
Byte 01 Bit 2 Electronic Fuelpump Relay installed (Gasonline only)
. s7 C6 s8 l; }% ~Byte 01 Bit 3 Rear Wiper installed( D1 d0 @7 y, m3 L! L
Byte 01 Bit 4 Heated Side Mirror installed
7 f! W Z& k L+ U% ?" G& rByte 01 Bit 5 Rear Lid Remote Opening4 u% R$ r6 \( W# m' p
Byte 01 Bit 6 Rear Lid Remote Opening - Release
; o. G4 J7 U0 j+ O" s& v. Y1 x0 UByte 01 Bit 7 Rear Wiper with Front Wiper continiously active
/ W# r0 ~* ?6 B LByte 02 Bit 0 Rear Wiper with Front Wiper intermittent active0 B3 ?+ b6 R4 x
Byte 02 Bit 1 Comfort Turn Signals5 L, p$ ]6 Y/ {' C
Byte 02 Bit 2 Cold Lamp Diagnosis active
5 k. B: S, X: @ D5 wByte 02 Bit 3 Load Management active8 k8 S3 b9 H: S6 H* a1 W
Byte 02 Bit 4 Coming-Home via0 P4 ~; L( M9 O, h# s# H6 h" X
(1 = Potentiometer / 0 = Adaptation)# F% d9 y, r: s+ ^8 x
Byte 02 Bit 5 Rear Lid Remote Openening
' ^8 r" F* O1 Q) Q9 M (1 = Contact activated / 0 = Impuls activated)
9 g' ?0 ~2 o$ J( NByte 02 Bit 6 Side Turn Signal Lights installed
1 C' O5 t8 W+ |- ]Byte 02 Bit 7 Seat Heating installed (PR-4A3/4A4)- Q8 v0 O5 Y1 C( a/ p: j
Byte 03 Bit 0 Realy Terminal 15 installed (with 2nd Battery)' W b/ x' i; j; }' i8 {, N
Byte 03 Bit 1 Rear Fog Lights (1 = 1 active / 0 = 2 active)9 @0 {: u. k% K2 `& |, h
Byte 03 Bit 2 Reverse Driving Lights (1 = 1 active / 0 = 2 active)/ G0 r% u2 G( Q, M
Byte 03 Bit 3 Reverse Driving Light off when Rear Lid open
1 x+ G/ J1 A! x: C: d! qByte 03 Bit 4 Xenon-Shutter installed (Bi-Xenon). y- P9 C+ `1 F& R
Byte 03 Bit 5 Teardrop Wiping active+ D) ?+ H' q: z$ ^! s
Byte 03 Bit 6 2nd Battery installed
/ E" T! K: D: C9 s4 {, VByte 03 Bit 7 Rear Lights (1 = Back Light/Brake Light dimmed / 0 = Back Light dimmed)
) w' }# v3 y) NByte 04 Bit 0 Auxiliary Heating installed) M) e% _( p. a N4 L$ Q
Byte 04 Bit 1 Auxiliary Heating installed5 M6 w3 P2 A4 F' H6 v
Byte 04 Bit 2 Trailer/Towing Device installed
* f% v' k% w: T0 N+ AByte 04 Bit 3 Memory Seats installed
4 W2 ?8 k3 B# Y/ w9 e4 `' _Byte 04 Bit 4 Activation of both Rear Fog Lights$ y% C% @1 } @4 U
Byte 04 Bit 5 Model (0 = Right Hand Drive / 1 = Left Hand Drive)
8 w; T9 E# ]+ c [( Y/ \; V& WByte 04 Bit 6 Rear Fog Lights deactivated/ b( Y/ Q7 q4 Z# T
Byte 04 Bit 7 Climatronic installed
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…………
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& p. M! {6 G5 \9 D c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。
" @ E$ q) @. N" R$ m4 ^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, g0 U& N5 i/ B1 a, t# r! l( U4 D
Byte 00 Bit 1 Xenon Headlights installed
" U! V8 E: N% S; J6 d+ O以及离家和回家大灯
: R" }6 P7 Z6 l/ i0 w! E* V* RByte 00 Bit 5 Assistance Driving Light & Leaving Home3 [) k: k: `! k% P5 }( R' u* P( w" X
Byte 00 Bit 7 Coming-Home7 |1 x6 m5 E& d5 e
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
( B$ E/ l; E; Z; B8 O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。
* O' w7 X& W7 r# x这样,再把byte00合并到09功能的长编码去,原来的长编码! z! \* i1 l/ w/ Q5 c% a4 v8 E; j8 P& V
018D8F020004100000120C000000000000087F075C
" @9 @* k: u4 Q. G, @" ^就变成了% A) l% O8 f" ~6 x9 N
A38D8F020004100000120C000000000000087F075C
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