手把手教你使用长编码功能
% k( { o( k+ d( L* M1 p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/ y3 l$ g1 P6 [/ L c l1 }
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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! |/ v" \5 T% `$ p7 u& S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。" h% G, Q( c4 r
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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/ C- t( D& y% `0 U+ B* D6 w. v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 W8 L) s0 A& Q l, D1 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。9 |. C" O$ x* F2 g' C5 T5 a
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Byte 00 Bit 0 Fog Lights installed (PR-8WB)
! J( X: U0 ]9 ~; S* \Byte 00 Bit 1 Xenon Headlights installed
$ p" c- h( d% m9 {4 ~- pByte 00 Bit 2 Footwell Lights installed (PR-QQ4)" z+ S1 q7 O* @- C- P
Byte 00 Bit 3 Daytime Running Lights (Scandinavia)4 w `7 y1 L5 Q |
Byte 00 Bit 4 Daytime Running Lights (North America)% D/ O( C% Y0 c/ l5 P0 D
Byte 00 Bit 5 Assistance Driving Light & Leaving Home
! L3 |, q& p: t) iByte 00 Bit 6 Rain/Light Sensor installed
2 [, k6 X6 ^% N, _7 K' F- Y5 OByte 00 Bit 7 Coming-Home+ q! o3 ?" X% @) q4 t$ p$ N0 ]- m5 m
Byte 01 Bit 0 Rear Seat Recognition installed9 Y0 B: D% N+ r! o7 d/ L0 X
Byte 01 Bit 1 Headlight Washer installed (PR-8X1)
: F# Z& F- c* \7 T4 Y1 UByte 01 Bit 2 Electronic Fuelpump Relay installed (Gasonline only)
- B2 f1 Z K; j4 M5 p! HByte 01 Bit 3 Rear Wiper installed2 ? F2 P+ a$ ^- n
Byte 01 Bit 4 Heated Side Mirror installed6 h8 R) Y: f. q: A C
Byte 01 Bit 5 Rear Lid Remote Opening
8 v6 F0 H1 f7 T. R: z( aByte 01 Bit 6 Rear Lid Remote Opening - Release
0 x# |2 Q6 {4 r' |! g3 x u7 zByte 01 Bit 7 Rear Wiper with Front Wiper continiously active8 ^8 B4 m X6 w1 f% K
Byte 02 Bit 0 Rear Wiper with Front Wiper intermittent active8 X3 W7 V5 e9 n7 D+ q5 x
Byte 02 Bit 1 Comfort Turn Signals% W) k( d* d: z/ x, e) g! M! ~
Byte 02 Bit 2 Cold Lamp Diagnosis active
& H) R) h. z0 k- {- WByte 02 Bit 3 Load Management active
: r6 W! y# d q5 c. mByte 02 Bit 4 Coming-Home via
9 V7 C: U; B2 D; B# B1 V! R (1 = Potentiometer / 0 = Adaptation)
: l9 y! ?" K1 Y) q9 oByte 02 Bit 5 Rear Lid Remote Openening
9 _7 \/ {) ?& @9 M (1 = Contact activated / 0 = Impuls activated)
4 p* z7 q3 _; d& M, L' e9 n* BByte 02 Bit 6 Side Turn Signal Lights installed
' C9 I+ B2 e: [3 SByte 02 Bit 7 Seat Heating installed (PR-4A3/4A4)
6 P% q6 Q/ b2 N! C0 E, ^Byte 03 Bit 0 Realy Terminal 15 installed (with 2nd Battery)
+ J2 j D7 S4 `6 |Byte 03 Bit 1 Rear Fog Lights (1 = 1 active / 0 = 2 active)
4 z1 s \* g) B9 SByte 03 Bit 2 Reverse Driving Lights (1 = 1 active / 0 = 2 active)
% A; t. O7 m- }1 x4 p. zByte 03 Bit 3 Reverse Driving Light off when Rear Lid open5 G9 h. g5 X0 Y$ d
Byte 03 Bit 4 Xenon-Shutter installed (Bi-Xenon)
$ S+ b: g! A% b: X* I+ MByte 03 Bit 5 Teardrop Wiping active
0 _$ ?8 B7 w8 W1 H: eByte 03 Bit 6 2nd Battery installed5 z8 Y. T- k+ K+ I+ }. ~) {) Q
Byte 03 Bit 7 Rear Lights (1 = Back Light/Brake Light dimmed / 0 = Back Light dimmed); P+ L# Z& z; t, m, \+ T7 J$ z6 f
Byte 04 Bit 0 Auxiliary Heating installed
$ S6 \4 \! w- H* [& F: Y$ ]2 IByte 04 Bit 1 Auxiliary Heating installed
- r, _, |, |- S$ N, i1 d# ~Byte 04 Bit 2 Trailer/Towing Device installed6 Y/ V2 s7 @$ Y1 l k" j k
Byte 04 Bit 3 Memory Seats installed2 t3 X- p( H Y; u! I4 E
Byte 04 Bit 4 Activation of both Rear Fog Lights* d& \5 t) E! d; k
Byte 04 Bit 5 Model (0 = Right Hand Drive / 1 = Left Hand Drive)# q' ?; S6 O/ X$ V9 |, H9 [
Byte 04 Bit 6 Rear Fog Lights deactivated S6 o, H6 m. I
Byte 04 Bit 7 Climatronic installed
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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。( a6 c; o1 p$ A% w0 ^# A
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
0 J* K5 P( F) XByte 00 Bit 1 Xenon Headlights installed! o O" R* ~( o% h; r/ l1 H
以及离家和回家大灯
: ]9 u- a) P; d- o/ MByte 00 Bit 5 Assistance Driving Light & Leaving Home
( W0 h' U1 [7 n/ J# f. o$ CByte 00 Bit 7 Coming-Home
' P0 f; k" j. F; |: m! y9 s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
/ X0 O9 Y8 N( X/ k2 q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。 n. g, }3 _% j1 ~7 D$ y
这样,再把byte00合并到09功能的长编码去,原来的长编码
0 h" U2 \0 C0 Z$ ?3 h$ M1 X018D8F020004100000120C000000000000087F075C
/ Y9 l6 ^/ H8 f# t& j就变成了
! ?/ @+ I- [4 K7 `$ [; ^! _A38D8F020004100000120C000000000000087F075C
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