手把手教你使用长编码功能9 k0 {; q }! `+ z: V) h# ?- 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
. N$ g* o& @* I# p0 z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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9 `0 H$ O: `* o( _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。' r" D5 ?7 H! |8 }& c- ?
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。5 k$ H. T' F1 D! L$ N5 x8 e
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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。
! |3 \+ Q( Z( O6 d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。
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Byte 00 Bit 0 Fog Lights installed (PR-8WB); i2 ~( t5 d8 |2 ^
Byte 00 Bit 1 Xenon Headlights installed
a5 j4 d" X- \0 K# o, l- sByte 00 Bit 2 Footwell Lights installed (PR-QQ4)4 q5 H! g# y5 G& U# ]& `
Byte 00 Bit 3 Daytime Running Lights (Scandinavia)
% l4 }) m; ?$ g4 ?+ WByte 00 Bit 4 Daytime Running Lights (North America)
1 W( u4 c, u4 B# {* [, \, MByte 00 Bit 5 Assistance Driving Light & Leaving Home: R9 K7 N1 j C, E6 f7 H
Byte 00 Bit 6 Rain/Light Sensor installed7 R z; T1 l- d
Byte 00 Bit 7 Coming-Home
" P( b, U3 y( Y( v/ B* l" dByte 01 Bit 0 Rear Seat Recognition installed
/ j% W2 C) Y! `& aByte 01 Bit 1 Headlight Washer installed (PR-8X1)
2 z: a- ]$ |' _+ D4 HByte 01 Bit 2 Electronic Fuelpump Relay installed (Gasonline only)/ B# ]( M2 Z1 {
Byte 01 Bit 3 Rear Wiper installed
9 _: v( i" B0 t U% H! U" AByte 01 Bit 4 Heated Side Mirror installed
7 D3 w, I3 ?, Q W+ d7 N4 e9 X5 OByte 01 Bit 5 Rear Lid Remote Opening* V# P. O& e& F
Byte 01 Bit 6 Rear Lid Remote Opening - Release
$ g( q7 N: L5 q& ?Byte 01 Bit 7 Rear Wiper with Front Wiper continiously active L* D; U7 {0 ?5 g
Byte 02 Bit 0 Rear Wiper with Front Wiper intermittent active" K1 z' {/ v: ]6 C y
Byte 02 Bit 1 Comfort Turn Signals6 O/ W" m- F) O b
Byte 02 Bit 2 Cold Lamp Diagnosis active9 S) p% O# f1 p
Byte 02 Bit 3 Load Management active
" L5 i3 ]" r, {3 B; u, rByte 02 Bit 4 Coming-Home via
6 @6 U; \1 w( {7 P: d" b% ~% D" ? (1 = Potentiometer / 0 = Adaptation), \* Y( u3 o" W& `+ B# K; ^3 A
Byte 02 Bit 5 Rear Lid Remote Openening% _9 N1 S' ]0 X5 W$ ~$ _. e1 h
(1 = Contact activated / 0 = Impuls activated)2 n9 z6 L; S1 M- u) ^/ ]$ D8 J" G
Byte 02 Bit 6 Side Turn Signal Lights installed
7 G9 s1 f5 K$ h* l2 nByte 02 Bit 7 Seat Heating installed (PR-4A3/4A4)" l: V) o; @: L* e e& D
Byte 03 Bit 0 Realy Terminal 15 installed (with 2nd Battery)
9 I! R7 y8 Z! [2 Y9 mByte 03 Bit 1 Rear Fog Lights (1 = 1 active / 0 = 2 active)- Z0 E0 R- w8 V5 B
Byte 03 Bit 2 Reverse Driving Lights (1 = 1 active / 0 = 2 active)" B( g3 r6 P C' j1 r5 C
Byte 03 Bit 3 Reverse Driving Light off when Rear Lid open
: e' }: X5 S+ B7 l) H: [9 t- CByte 03 Bit 4 Xenon-Shutter installed (Bi-Xenon)
- c+ q- v; w3 W( |2 D/ ]2 QByte 03 Bit 5 Teardrop Wiping active+ n) i6 F: ?# H( K
Byte 03 Bit 6 2nd Battery installed
' v4 R0 \9 d Z/ [+ z# p( EByte 03 Bit 7 Rear Lights (1 = Back Light/Brake Light dimmed / 0 = Back Light dimmed)
4 ~; K1 T o* }! l9 YByte 04 Bit 0 Auxiliary Heating installed
: E% S0 ^8 e" sByte 04 Bit 1 Auxiliary Heating installed
. g5 \$ J# s( ?, m0 e+ {1 [Byte 04 Bit 2 Trailer/Towing Device installed
; E! _7 \/ X, B/ G2 ^Byte 04 Bit 3 Memory Seats installed$ D @4 X( X# W) O
Byte 04 Bit 4 Activation of both Rear Fog Lights
' \( P% c' i$ @* JByte 04 Bit 5 Model (0 = Right Hand Drive / 1 = Left Hand Drive)
1 c2 B2 [" C2 T! B* }2 ]1 Q, S: cByte 04 Bit 6 Rear Fog Lights deactivated
5 X/ }* A/ {) \- ?7 k' LByte 04 Bit 7 Climatronic installed/ {0 |) A& s0 @6 q
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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。
o) f0 b- W" C% L* B; `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
1 o2 z" S# b Z, J- p1 uByte 00 Bit 1 Xenon Headlights installed
* s5 V$ H9 e& b. H. t% S1 y4 U以及离家和回家大灯
{9 [/ j$ T# h ]/ E }8 X7 h! YByte 00 Bit 5 Assistance Driving Light & Leaving Home4 |9 J0 m, t+ [. t
Byte 00 Bit 7 Coming-Home5 n( x9 }; {$ u# P Y& i$ Z2 ~; {) i+ j
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; c. u' S1 t: Q) G, A9 ]
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。
) j* A- Y) Q: ?7 Z- z' K: h1 R% ~, S这样,再把byte00合并到09功能的长编码去,原来的长编码$ T# U$ G6 _6 A* o; O
018D8F020004100000120C000000000000087F075C- Y; C, r3 d" q2 s e% M/ i
就变成了# A; E1 O' p. r; f% d6 v
A38D8F020004100000120C000000000000087F075C
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