关于CDT CRC校验的问题

sdwhlcf

我看规约里有个CRC校验表，那个表是如何得到的，我查了相关资料，有的人代码把那种校验码叫正码，谁能指点下，搞不定了？现在行业常用的都是反码，这个反码表我能计算出来！

0 A) L9 ~( o( H3 a. m本规约采用CRC校验，控制字和信息字都是（n、k）=(48,40)  码组，生成多项式为
G(X)=X8+X2+X+1,陪集码为FFH。按4.2条所述发码规则的顺序以 G(X)模2除前5个字节，生成余
式R(X)。以R(X)作为校验码。若用查表法，信息字、控制字基本码元的中间余式见
                 表1    中间余式表
# c/ w" `3 y9 [1 d( T信息字、控制字的码元  查表法中间佘式
01H  1110  0000B
! A9 V" ?2 U5 @) B02H  0111  0000B
04H  0011  1000B
. h% S( B) K1 b1 ?8 Q/ N- E$ w08H  0001  1100B
$ Z$ Z0 Q* U9 k5 W# K) Nl0H  0000  1110B
) o* T% L/ d1 x; m9 ^2 H20H  0000  0111B
6 p  u; G7 \% X, y, t40H  1110  0011B
80H  1001  0001B
  uint8 CRC8_Check_Table_XXX[256] = 这是正码表，和规约一致的，（正码表，不知是如何计算出来的，求方法）
5 b3 v  g* y8 n4 N# O{                          0x00,0xE0,0x70,0x90,0x38,0xD8,0x48,0xA8,
                0x1C,0xFC,0x6C,0x8C,0x24,0xC4,0x54,0xB4,
% B2 G8 M$ q1 }9 a: G0 |/ @; R2 ?                0x0E,0xEE,0x7E,0x9E,0x36,0xD6,0x46,0xA6,
                0x12,0xF2,0x62,0x82,0x2A,0xCA,0x5A,0xBA,
' O/ G, M  E; R# f2 m                0x07,0xE7,0x77,0x97,0x3F,0xDF,0x4F,0xAF,
                0x1B,0xFB,0x6B,0x8B,0x23,0xC3,0x53,0xB3,
7 I$ Y+ l  J: y0 @) D/ A                0x09,0xE9,0x79,0x99,0x31,0xD1,0x41,0xA1,
/ D8 ]- B7 t% B* K, b; a9 y                0x15,0xF5,0x65,0x85,0x2D,0xCD,0x5D,0xBD,
1 F, d0 ?* O* L                0xE3,0x03,0x93,0x73,0xDB,0x3B,0xAB,0x4B,
                0xFF,0x1F,0x8F,0x6F,0xC7,0x27,0xB7,0x57,
8 v! L- L9 X" [; ?" f                0xED,0x0D,0x9D,0x7D,0xD5,0x35,0xA5,0x45,
4 N8 n  y) U+ `9 k: C5 u! O5 r: y2 W" k                0xF1,0x11,0x81,0x61,0xC9,0x29,0xB9,0x59,
1 ~8 \. H9 e( \+ W5 @- T8 ^                0xE4,0x04,0x94,0x74,0xDC,0x3C,0xAC,0x4C,
                0xF8,0x18,0x88,0x68,0xC0,0x20,0xB0,0x50,
+ R. B. l3 R% l) k( i                0xEA,0x0A,0x9A,0x7A,0xD2,0x32,0xA2,0x42,
                0xF6,0x16,0x86,0x66,0xCE,0x2E,0xBE,0x5E,
  W& X' q  p& Z2 V& W* x' A: }  q- D                0x91,0x71,0xE1,0x01,0xA9,0x49,0xD9,0x39,
* W' }% u) ^; M! h: U, M                0x8D,0x6D,0xFD,0x1D,0xB5,0x55,0xC5,0x25,
                0x9F,0x7F,0xEF,0x0F,0xA7,0x47,0xD7,0x37,
                0x83,0x63,0xF3,0x13,0xBB,0x5B,0xCB,0x2B,
                0x96,0x76,0xE6,0x06,0xAE,0x4E,0xDE,0x3E,
/ G4 r- T' c/ H: M                0x8A,0x6A,0xFA,0x1A,0xB2,0x52,0xC2,0x22,
                0x98,0x78,0xE8,0x08,0xA0,0x40,0xD0,0x30,
  h) Q6 }; o- O1 d3 R+ S& \' f2 p                0x84,0x64,0xF4,0x14,0xBC,0x5C,0xCC,0x2C,
# M, A3 O. J! R  p/ O+ r                0x72,0x92,0x02,0xE2,0x4A,0xAA,0x3A,0xDA,
) }( P5 p, t# `9 N1 `                0x6E,0x8E,0x1E,0xFE,0x56,0xB6,0x26,0xC6,
; I- C1 [( _/ F                0x7C,0x9C,0x0C,0xEC,0x44,0xA4,0x34,0xD4,
                0x60,0x80,0x10,0xF0,0x58,0xB8,0x28,0xC8,
' z( b) T! g" w7 K2 \; z& \% j5 K                0x75,0x95,0x05,0xE5,0x4D,0xAD,0x3D,0xDD,
0 s/ B3 D6 \& D: g% U+ x3 @                0x69,0x89,0x19,0xF9,0x51,0xB1,0x21,0xC1,
                0x7B,0x9B,0x0B,0xEB,0x43,0xA3,0x33,0xD3,
                0x67,0x87,0x17,0xF7,0x5F,0xBF,0x2F,0xCF},
7 \$ _0 Q* m" B1 B+ E7 t- ^
咱们常用都是反码表
! n6 H1 K) _4 d: {0 Xuint8 CRC8_Check_Table_XXX[256] = {
% f8 F" v6 ^. J# M. B6 e. g- @        0x00,0x07,0x0e,0x09,0x1c,0x1b,0x12,0x15,
        0x38,0x3f,0x36,0x31,0x24,0x23,0x2a,0x2d,//0
        0x70,0x77,0x7e,0x79,0x6c,0x6b,0x62,0x65,
        0x48,0x4f,0x46,0x41,0x54,0x53,0x5a,0x5d,//1
        0xe0,0xe7,0xee,0xe9,0xfc,0xfb,0xf2,0xf5,
        0xd8,0xdf,0xd6,0xd1,0xc4,0xc3,0xca,0xcd,//2
        0x90,0x97,0x9e,0x99,0x8c,0x8b,0x82,0x85,
, f, [3 T5 D0 R$ c        0xa8,0xaf,0xa6,0xa1,0xb4,0xb3,0xba,0xbd,//3
; W/ U1 G8 J. f* q' b        0xc7,0xc0,0xc9,0xce,0xdb,0xdc,0xd5,0xd2,
        0xff,0xf8,0xf1,0xf6,0xe3,0xe4,0xed,0xea,//4
# b* d: k$ M9 B6 i: n        0xb7,0xb0,0xb9,0xbe,0xab,0xac,0xa5,0xa2,
3 a- \+ f! o  ?8 v        0x8f,0x88,0x81,0x86,0x93,0x94,0x9d,0x9a,//5
        0x27,0x20,0x29,0x2e,0x3b,0x3c,0x35,0x32,
# ]' e$ G0 \+ R- p& a3 J        0x1f,0x18,0x11,0x16,0x03,0x04,0x0d,0x0a,//6
& o  s9 x; b1 i  r- M        0x57,0x50,0x59,0x5e,0x4b,0x4c,0x45,0x42,
        0x6f,0x68,0x61,0x66,0x73,0x74,0x7d,0x7a,//7
) Q+ K1 |6 K  _  R5 p) A, t        0x89,0x8e,0x87,0x80,0x95,0x92,0x9b,0x9c,
        0xb1,0xb6,0xbf,0xb8,0xad,0xaa,0xa3,0xa4,//8
/ j. a" d$ t" ~7 E+ T" b1 s        0xf9,0xfe,0xf7,0xf0,0xe5,0xe2,0xeb,0xec,
        0xc1,0xc6,0xcf,0xc8,0xdd,0xda,0xd3,0xd4,//9
( u/ [+ X; E) W* p, S$ l        0x69,0x6e,0x67,0x60,0x75,0x72,0x7b,0x7c,
; K9 F# h" t$ f4 ]0 U9 @. l; V6 ]. o        0x51,0x56,0x5f,0x58,0x4d,0x4a,0x43,0x44,//a
: {' ?1 R" |9 w9 T$ e        0x19,0x1e,0x17,0x10,0x05,0x02,0x0b,0x0c,
        0x21,0x26,0x2f,0x28,0x3d,0x3a,0x33,0x34,//b
0 A- D! z: B% g7 [7 U) k        0x4e,0x49,0x40,0x47,0x52,0x55,0x5c,0x5b,
        0x76,0x71,0x78,0x7f,0x6a,0x6d,0x64,0x63,//c
) {& J3 r' Z5 B5 q* z/ X$ ~        0x3e,0x39,0x30,0x37,0x22,0x25,0x2c,0x2b,
; s  O: `. {& Z+ n5 s        0x06,0x01,0x08,0x0f,0x1a,0x1d,0x14,0x13,//d
        0xae,0xa9,0xa0,0xa7,0xb2,0xb5,0xbc,0xbb,
& H8 r0 T% p5 f4 G8 Z$ ?        0x96,0x91,0x98,0x9f,0x8a,0x8d,0x84,0x83,//e
        0xde,0xd9,0xd0,0xd7,0xc2,0xc5,0xcc,0xcb,
: ~4 F) ]0 ]1 o& S. b0 u        0xe6,0xe1,0xe8,0xef,0xfa,0xfd,0xf4,0xf3,//f
3 S, f9 `# d4 Q, Q9 p4 R};

sdwhlcf

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