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！
  R8 s7 T8 `2 l+ W& ~* a0 a
2 l% L2 T0 ?' Q" `$ E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
, O7 ~  H: [6 N' U; s/ T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
5 e' x3 i  j$ h4 ^1 p# M                 表1    中间余式表
/ Z/ q* j* y3 y+ C: {& K信息字、控制字的码元  查表法中间佘式
01H  1110  0000B
02H  0111  0000B
04H  0011  1000B
9 Q: r9 Q; C: e1 q) u; f9 ^  v08H  0001  1100B
/ g- }% d+ c; p: a" U; bl0H  0000  1110B
; @: `, p9 L# A7 u20H  0000  0111B
40H  1110  0011B
/ k4 A$ F1 |/ K& s2 L* b' R' r- P80H  1001  0001B
* ]8 }. Q4 U" g; t% a' q  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）
1 D# V/ K0 W. ]9 Z{                          0x00,0xE0,0x70,0x90,0x38,0xD8,0x48,0xA8,
                0x1C,0xFC,0x6C,0x8C,0x24,0xC4,0x54,0xB4,
. z# S7 i7 q2 a( E- D                0x0E,0xEE,0x7E,0x9E,0x36,0xD6,0x46,0xA6,
                0x12,0xF2,0x62,0x82,0x2A,0xCA,0x5A,0xBA,
                0x07,0xE7,0x77,0x97,0x3F,0xDF,0x4F,0xAF,
                0x1B,0xFB,0x6B,0x8B,0x23,0xC3,0x53,0xB3,
) [+ a; N* t+ {% E                0x09,0xE9,0x79,0x99,0x31,0xD1,0x41,0xA1,
+ ?& A1 g6 f0 G, r9 K- `) A+ V0 \                0x15,0xF5,0x65,0x85,0x2D,0xCD,0x5D,0xBD,
2 ~( R- |! k" T                0xE3,0x03,0x93,0x73,0xDB,0x3B,0xAB,0x4B,
, ]4 E2 E& ^. v1 m" F$ ?                0xFF,0x1F,0x8F,0x6F,0xC7,0x27,0xB7,0x57,
* m! ^0 E* |' ~# H8 ]+ l$ |8 }, J                0xED,0x0D,0x9D,0x7D,0xD5,0x35,0xA5,0x45,
                0xF1,0x11,0x81,0x61,0xC9,0x29,0xB9,0x59,
/ B! \* O7 ?  u                0xE4,0x04,0x94,0x74,0xDC,0x3C,0xAC,0x4C,
                0xF8,0x18,0x88,0x68,0xC0,0x20,0xB0,0x50,
+ |/ t' \; {! K4 v: O, V                0xEA,0x0A,0x9A,0x7A,0xD2,0x32,0xA2,0x42,
3 F* M  u/ v8 D: ]& w. h: ^                0xF6,0x16,0x86,0x66,0xCE,0x2E,0xBE,0x5E,
                0x91,0x71,0xE1,0x01,0xA9,0x49,0xD9,0x39,
                0x8D,0x6D,0xFD,0x1D,0xB5,0x55,0xC5,0x25,
5 z; [, l$ C! M6 N                0x9F,0x7F,0xEF,0x0F,0xA7,0x47,0xD7,0x37,
" B# @0 |# }+ }3 j+ [% L                0x83,0x63,0xF3,0x13,0xBB,0x5B,0xCB,0x2B,
                0x96,0x76,0xE6,0x06,0xAE,0x4E,0xDE,0x3E,
+ B# d& l  v: {( s                0x8A,0x6A,0xFA,0x1A,0xB2,0x52,0xC2,0x22,
) @8 o' a7 Z5 O# p  J                0x98,0x78,0xE8,0x08,0xA0,0x40,0xD0,0x30,
                0x84,0x64,0xF4,0x14,0xBC,0x5C,0xCC,0x2C,
" m# a* A9 {6 i0 r; w                0x72,0x92,0x02,0xE2,0x4A,0xAA,0x3A,0xDA,
                0x6E,0x8E,0x1E,0xFE,0x56,0xB6,0x26,0xC6,
  A$ B8 E+ g+ H( ?                0x7C,0x9C,0x0C,0xEC,0x44,0xA4,0x34,0xD4,
                0x60,0x80,0x10,0xF0,0x58,0xB8,0x28,0xC8,
) c& D' K  [% s6 l/ O- f$ [) t/ Q. g                0x75,0x95,0x05,0xE5,0x4D,0xAD,0x3D,0xDD,
; k. Q9 I5 p* S6 I1 X5 r                0x69,0x89,0x19,0xF9,0x51,0xB1,0x21,0xC1,
                0x7B,0x9B,0x0B,0xEB,0x43,0xA3,0x33,0xD3,
8 R: D+ u9 W- J, G4 ^                0x67,0x87,0x17,0xF7,0x5F,0xBF,0x2F,0xCF},

咱们常用都是反码表
2 ]+ O4 H  g7 p5 q: ~  Q7 V4 a' [4 Fuint8 CRC8_Check_Table_XXX[256] = {
        0x00,0x07,0x0e,0x09,0x1c,0x1b,0x12,0x15,
( ]" C$ m: Y# s( {  l        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,
& b( F8 H8 z2 B  r        0xd8,0xdf,0xd6,0xd1,0xc4,0xc3,0xca,0xcd,//2
        0x90,0x97,0x9e,0x99,0x8c,0x8b,0x82,0x85,
        0xa8,0xaf,0xa6,0xa1,0xb4,0xb3,0xba,0xbd,//3
5 F# _. X# A, ~1 B, x  P9 |        0xc7,0xc0,0xc9,0xce,0xdb,0xdc,0xd5,0xd2,
0 F) T. }5 C1 x' ~; m2 ?1 z1 `4 j9 D6 ^        0xff,0xf8,0xf1,0xf6,0xe3,0xe4,0xed,0xea,//4
7 g7 c( F- ~* r        0xb7,0xb0,0xb9,0xbe,0xab,0xac,0xa5,0xa2,
        0x8f,0x88,0x81,0x86,0x93,0x94,0x9d,0x9a,//5
! B: {6 ?) N8 I4 l; |" t        0x27,0x20,0x29,0x2e,0x3b,0x3c,0x35,0x32,
        0x1f,0x18,0x11,0x16,0x03,0x04,0x0d,0x0a,//6
3 O7 o4 R9 H4 g1 g$ A) E& s        0x57,0x50,0x59,0x5e,0x4b,0x4c,0x45,0x42,
5 r- t" \: t2 T        0x6f,0x68,0x61,0x66,0x73,0x74,0x7d,0x7a,//7
        0x89,0x8e,0x87,0x80,0x95,0x92,0x9b,0x9c,
3 t) Z+ j- d1 U8 n/ \1 a1 Y        0xb1,0xb6,0xbf,0xb8,0xad,0xaa,0xa3,0xa4,//8
        0xf9,0xfe,0xf7,0xf0,0xe5,0xe2,0xeb,0xec,
        0xc1,0xc6,0xcf,0xc8,0xdd,0xda,0xd3,0xd4,//9
4 _1 e, C' V  r7 W. J# Z( \' E        0x69,0x6e,0x67,0x60,0x75,0x72,0x7b,0x7c,
        0x51,0x56,0x5f,0x58,0x4d,0x4a,0x43,0x44,//a
        0x19,0x1e,0x17,0x10,0x05,0x02,0x0b,0x0c,
8 X7 ~: L6 X' p4 B        0x21,0x26,0x2f,0x28,0x3d,0x3a,0x33,0x34,//b
        0x4e,0x49,0x40,0x47,0x52,0x55,0x5c,0x5b,
        0x76,0x71,0x78,0x7f,0x6a,0x6d,0x64,0x63,//c
        0x3e,0x39,0x30,0x37,0x22,0x25,0x2c,0x2b,
        0x06,0x01,0x08,0x0f,0x1a,0x1d,0x14,0x13,//d
6 _  A% w- x5 M0 f, M2 m' [/ I        0xae,0xa9,0xa0,0xa7,0xb2,0xb5,0xbc,0xbb,
% O8 }5 j1 |5 c        0x96,0x91,0x98,0x9f,0x8a,0x8d,0x84,0x83,//e
        0xde,0xd9,0xd0,0xd7,0xc2,0xc5,0xcc,0xcb,
        0xe6,0xe1,0xe8,0xef,0xfa,0xfd,0xf4,0xf3,//f
( b, Q, g, D! ?: G* ^};

sdwhlcf

怎么没人解答呢？？

laowang19660504

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