手把手教你使用长编码功能
' U% {! q( `# h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:* Q" E3 w( k1 a, A3 p; q
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018D8F020004100000120C000000000000087F075C
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! M4 p' g* f4 ^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
5 C- h, C) t5 R/ ^0 _: G7 s* K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。4 r3 ^- P3 t9 A n0 `6 [9 B
- ?$ W! L$ i5 J2 x" ~- J! A- D& c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。
- G0 H) M/ _# Y+ Q; K G- H' O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。& {: H+ B8 F! V! L* }! ~, B
6 S e" B4 q/ A( _- m' l! [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。
! m) y( f4 V7 Y C( S: b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。; H& D8 s8 N# ? m3 ~7 S8 N$ d( y
4 Q4 i* K/ B+ _/ C4 c$ N. s+ ]Byte 00 Bit 0 Fog Lights installed (PR-8WB)+ _2 ]; j) a; ?8 c M
Byte 00 Bit 1 Xenon Headlights installed* C+ A8 l& z' L" D
Byte 00 Bit 2 Footwell Lights installed (PR-QQ4)
. @: K" W j% }$ S7 K6 @& E2 lByte 00 Bit 3 Daytime Running Lights (Scandinavia)
0 u3 R4 |( {! j4 n# y' l4 f7 s5 Z# ]8 oByte 00 Bit 4 Daytime Running Lights (North America)8 S2 {9 @, S1 ]: b. J7 S6 ]
Byte 00 Bit 5 Assistance Driving Light & Leaving Home6 `: U+ D% h/ U( {
Byte 00 Bit 6 Rain/Light Sensor installed- S4 W2 |- F1 u4 l+ U- {2 }
Byte 00 Bit 7 Coming-Home
( f0 W, b5 l! S1 C2 EByte 01 Bit 0 Rear Seat Recognition installed
3 [. M& w: n: H2 [Byte 01 Bit 1 Headlight Washer installed (PR-8X1)
" l' X+ M; P$ D6 N) Q1 TByte 01 Bit 2 Electronic Fuelpump Relay installed (Gasonline only)
; n1 s% m6 D2 k7 {6 g! dByte 01 Bit 3 Rear Wiper installed
, m8 B8 ^/ c. C# ^; y4 fByte 01 Bit 4 Heated Side Mirror installed+ Y, Q6 a2 `% p! _5 b
Byte 01 Bit 5 Rear Lid Remote Opening
& ^2 [; r: q" D7 TByte 01 Bit 6 Rear Lid Remote Opening - Release7 a2 y$ {7 I* U& a9 v
Byte 01 Bit 7 Rear Wiper with Front Wiper continiously active, z# N% n1 r8 `2 P
Byte 02 Bit 0 Rear Wiper with Front Wiper intermittent active% @) v/ J/ ^( y4 l8 j' T
Byte 02 Bit 1 Comfort Turn Signals# B" G$ d! g! S' A: A# F0 |' d
Byte 02 Bit 2 Cold Lamp Diagnosis active2 C7 J1 }- q8 \9 d- }$ n
Byte 02 Bit 3 Load Management active, C3 L s; a: |0 m3 M
Byte 02 Bit 4 Coming-Home via! A- U3 z' \' y# Q) P
(1 = Potentiometer / 0 = Adaptation)1 A7 V% W1 ~$ Z4 I: m
Byte 02 Bit 5 Rear Lid Remote Openening* \& m/ ?. t0 R5 s' p" t) x
(1 = Contact activated / 0 = Impuls activated)
, W9 H, Z# h5 P3 [Byte 02 Bit 6 Side Turn Signal Lights installed
5 V. m( b" ^7 p/ S' n/ u. Q1 PByte 02 Bit 7 Seat Heating installed (PR-4A3/4A4)( E: I5 v' B* H) }4 W* \2 M
Byte 03 Bit 0 Realy Terminal 15 installed (with 2nd Battery): W9 b! \; u% L2 W! O" l \
Byte 03 Bit 1 Rear Fog Lights (1 = 1 active / 0 = 2 active)
9 C) o* W) {. c8 J* YByte 03 Bit 2 Reverse Driving Lights (1 = 1 active / 0 = 2 active): z, `# z* ]& |1 ^. I4 N7 {
Byte 03 Bit 3 Reverse Driving Light off when Rear Lid open
. @" ]4 x$ c* f; cByte 03 Bit 4 Xenon-Shutter installed (Bi-Xenon) }& C2 D, i5 J; P; |! e
Byte 03 Bit 5 Teardrop Wiping active8 c6 G r, ~3 Q& H# }1 \7 ^9 z
Byte 03 Bit 6 2nd Battery installed/ w9 o" O$ N" B; h5 B: d
Byte 03 Bit 7 Rear Lights (1 = Back Light/Brake Light dimmed / 0 = Back Light dimmed)
+ d% @7 U* L3 Q \7 t0 M( XByte 04 Bit 0 Auxiliary Heating installed
1 _4 Y, o8 K8 X( I T' z; y0 c& iByte 04 Bit 1 Auxiliary Heating installed
9 K; l4 y7 g- U! w' m( l9 z% s: l4 P6 YByte 04 Bit 2 Trailer/Towing Device installed
8 \+ e/ n- y2 W4 E CByte 04 Bit 3 Memory Seats installed
# [& A' q, p9 |Byte 04 Bit 4 Activation of both Rear Fog Lights, L6 B# }% @6 m( v2 f- f* i
Byte 04 Bit 5 Model (0 = Right Hand Drive / 1 = Left Hand Drive)5 z" n7 n" r- N, d2 Q; c9 c
Byte 04 Bit 6 Rear Fog Lights deactivated
+ @' ?3 P1 }3 V2 a+ EByte 04 Bit 7 Climatronic installed$ A( S( Z1 t. B8 d/ H2 \( u
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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。, P5 _2 J$ C, z1 c
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
* [* D' v" k0 D1 yByte 00 Bit 1 Xenon Headlights installed; M; ?' x8 B6 m4 L
以及离家和回家大灯# Y' Q! i/ e5 W9 k2 ?9 J
Byte 00 Bit 5 Assistance Driving Light & Leaving Home# J. }- s4 a w& ~( t- T0 k
Byte 00 Bit 7 Coming-Home/ s$ M6 q Q+ U0 D% e9 C/ N/ F
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
; ?# A9 i" G! N6 d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。
* U, T, K, w/ [' t$ I这样,再把byte00合并到09功能的长编码去,原来的长编码& w- }# G* j; a5 U$ L
018D8F020004100000120C000000000000087F075C1 \, o. X& i+ G8 P
就变成了4 c& ?0 j8 F; W o0 N
A38D8F020004100000120C000000000000087F075C
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