手把手教你使用长编码功能
# q# `! P2 c a; a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20& S6 N8 i4 c9 [3 l) Q: W- g5 X
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* m5 M7 i8 q8 I
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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。6 C# Y. o. w4 Q2 u z. f
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。
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3 b# _. v' [' I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 S5 U- v: y$ Q3 F3 v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。" a2 @! M9 p' H# [% ?4 m
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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。/ G+ @% Q9 L( M
G$ D4 o2 ~1 d5 g! xByte 00 Bit 0 Fog Lights installed (PR-8WB): S I: l2 A" j- A2 [- j* J0 v
Byte 00 Bit 1 Xenon Headlights installed
1 G% g% l" s! vByte 00 Bit 2 Footwell Lights installed (PR-QQ4): i) n) A7 S9 t; @) e) P# R
Byte 00 Bit 3 Daytime Running Lights (Scandinavia)7 ~* ]- u& d9 n. |3 Y. U
Byte 00 Bit 4 Daytime Running Lights (North America); p; G- ~7 W0 F; C V
Byte 00 Bit 5 Assistance Driving Light & Leaving Home
& ^% a6 v/ ^9 b8 N2 ?Byte 00 Bit 6 Rain/Light Sensor installed t+ u, L; l. m& K r1 d2 j
Byte 00 Bit 7 Coming-Home
: ^" f t! D- k" KByte 01 Bit 0 Rear Seat Recognition installed7 r% W. C- Y8 L! M2 r0 l8 s
Byte 01 Bit 1 Headlight Washer installed (PR-8X1)6 P4 w! h" s( h% e
Byte 01 Bit 2 Electronic Fuelpump Relay installed (Gasonline only)
9 T( o, c+ T- L" NByte 01 Bit 3 Rear Wiper installed3 N m- Z/ F5 W: z
Byte 01 Bit 4 Heated Side Mirror installed/ q J' k8 x% N% \
Byte 01 Bit 5 Rear Lid Remote Opening
7 C. p) J# n0 O# R$ y nByte 01 Bit 6 Rear Lid Remote Opening - Release' _1 @' E0 w! X* R/ ~4 Y
Byte 01 Bit 7 Rear Wiper with Front Wiper continiously active
: M" m _! L3 K% ]! o* LByte 02 Bit 0 Rear Wiper with Front Wiper intermittent active7 N5 R& ~- f9 G* ]. m
Byte 02 Bit 1 Comfort Turn Signals1 B9 y' u( N3 J. m8 N$ c
Byte 02 Bit 2 Cold Lamp Diagnosis active/ U9 h s+ @4 I
Byte 02 Bit 3 Load Management active
& ?. t0 f' Z0 F" ?Byte 02 Bit 4 Coming-Home via
7 W, R! c$ t" w# Z2 x (1 = Potentiometer / 0 = Adaptation)
+ m4 z! O( y! a0 O$ c& AByte 02 Bit 5 Rear Lid Remote Openening
. Z1 u, i# F- ^* }6 J (1 = Contact activated / 0 = Impuls activated)
" o% I+ Z6 a% Y$ NByte 02 Bit 6 Side Turn Signal Lights installed; f2 D! Z, M l$ _" i
Byte 02 Bit 7 Seat Heating installed (PR-4A3/4A4)
- Y5 Y; _; Q; \# mByte 03 Bit 0 Realy Terminal 15 installed (with 2nd Battery)' T8 p% z8 o& x; @
Byte 03 Bit 1 Rear Fog Lights (1 = 1 active / 0 = 2 active)7 ~. z1 b4 ^* O& \1 O' @
Byte 03 Bit 2 Reverse Driving Lights (1 = 1 active / 0 = 2 active)
) ]. x7 t0 v8 DByte 03 Bit 3 Reverse Driving Light off when Rear Lid open5 t7 R2 l8 I8 d- l/ Q; X2 @
Byte 03 Bit 4 Xenon-Shutter installed (Bi-Xenon), B' X+ P) a" d" |, F
Byte 03 Bit 5 Teardrop Wiping active
& G/ b: R3 H( m5 T, n1 s3 G, m HByte 03 Bit 6 2nd Battery installed
7 Y. J9 p# {2 g0 k4 z, |3 V4 AByte 03 Bit 7 Rear Lights (1 = Back Light/Brake Light dimmed / 0 = Back Light dimmed)$ H1 S: u) y2 K4 V
Byte 04 Bit 0 Auxiliary Heating installed+ X& v8 S @, Y2 O& |/ i, l% U
Byte 04 Bit 1 Auxiliary Heating installed" w; y* e' s' z6 q, O
Byte 04 Bit 2 Trailer/Towing Device installed
* m, d0 j& j k( v8 uByte 04 Bit 3 Memory Seats installed
2 n5 }& q6 B* h1 m3 w7 KByte 04 Bit 4 Activation of both Rear Fog Lights
! h3 C: L! l' E& I' hByte 04 Bit 5 Model (0 = Right Hand Drive / 1 = Left Hand Drive)* Y0 w; D) C( {9 V: y& B0 n
Byte 04 Bit 6 Rear Fog Lights deactivated+ r7 c4 }1 o! T; u: r
Byte 04 Bit 7 Climatronic installed" a+ A# e" x: v* I8 H% Z6 B
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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。. M9 j+ v2 s7 E% |9 d: z
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
" z+ h+ \6 M3 B5 l: {4 pByte 00 Bit 1 Xenon Headlights installed" n1 ^% {. L0 q- B4 d5 z4 k7 Z
以及离家和回家大灯
4 i9 K: X8 I2 u" A/ R3 B6 QByte 00 Bit 5 Assistance Driving Light & Leaving Home
1 c4 _ \! v `- q. b& x& Q, K/ Y1 [Byte 00 Bit 7 Coming-Home$ _% Y2 J- l" M! [# 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
6 |* B' i6 R1 Z4 p: P2 X+ D6 f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。) y" @3 a1 f6 E1 @& ?5 i6 S
这样,再把byte00合并到09功能的长编码去,原来的长编码- K# ]8 [5 i0 S& j, r/ f
018D8F020004100000120C000000000000087F075C
7 s# t+ C0 E* v5 u1 [: X% b7 v就变成了! _9 h3 B4 _3 d- f3 }& Z! {
A38D8F020004100000120C000000000000087F075C2 b* d1 l4 p: @+ r
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