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！

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
% T0 M* `; |" t0 J7 u9 O* cG(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
: V5 _1 k) Q8 Y; T9 M: @8 B                 表1    中间余式表
6 L- Q0 J5 z4 O6 a0 B& H信息字、控制字的码元  查表法中间佘式
01H  1110  0000B
& g" m, u3 M, W' Q6 |02H  0111  0000B
0 X6 Z. Y  ?9 }& _! M* c3 T04H  0011  1000B
08H  0001  1100B
l0H  0000  1110B
20H  0000  0111B
. Q* d2 X3 t& M  _1 t  H$ ?* a40H  1110  0011B
7 }, H, z3 W" Z1 G80H  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 d4 E, ]5 u/ i: L) F{                          0x00,0xE0,0x70,0x90,0x38,0xD8,0x48,0xA8,
4 v4 {  \; E. c                0x1C,0xFC,0x6C,0x8C,0x24,0xC4,0x54,0xB4,
                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,
                0x09,0xE9,0x79,0x99,0x31,0xD1,0x41,0xA1,
' U$ V" i+ [4 c. B- ~# u                0x15,0xF5,0x65,0x85,0x2D,0xCD,0x5D,0xBD,
/ T1 W9 }- }* V4 Q  P                0xE3,0x03,0x93,0x73,0xDB,0x3B,0xAB,0x4B,
0 X- t/ s# y  v: I                0xFF,0x1F,0x8F,0x6F,0xC7,0x27,0xB7,0x57,
4 b6 K# r* \$ k+ \# L                0xED,0x0D,0x9D,0x7D,0xD5,0x35,0xA5,0x45,
0 O7 L6 q) _6 i- H+ }                0xF1,0x11,0x81,0x61,0xC9,0x29,0xB9,0x59,
2 ]2 H) Y! A" @9 U2 E  t                0xE4,0x04,0x94,0x74,0xDC,0x3C,0xAC,0x4C,
" j" }" q, |! a* b) }' V                0xF8,0x18,0x88,0x68,0xC0,0x20,0xB0,0x50,
                0xEA,0x0A,0x9A,0x7A,0xD2,0x32,0xA2,0x42,
4 ~! K) L/ H* v0 Q' Z( C, i  e) A                0xF6,0x16,0x86,0x66,0xCE,0x2E,0xBE,0x5E,
; [% J' N+ o& @) Z5 ~; [0 c                0x91,0x71,0xE1,0x01,0xA9,0x49,0xD9,0x39,
  y* R5 s6 u% }2 {7 h1 t0 X; \7 e                0x8D,0x6D,0xFD,0x1D,0xB5,0x55,0xC5,0x25,
                0x9F,0x7F,0xEF,0x0F,0xA7,0x47,0xD7,0x37,
. r3 e% K# j- Z# g                0x83,0x63,0xF3,0x13,0xBB,0x5B,0xCB,0x2B,
                0x96,0x76,0xE6,0x06,0xAE,0x4E,0xDE,0x3E,
2 ^% ]) g/ m/ F                0x8A,0x6A,0xFA,0x1A,0xB2,0x52,0xC2,0x22,
                0x98,0x78,0xE8,0x08,0xA0,0x40,0xD0,0x30,
; w4 U5 D8 s/ @! a, x; C                0x84,0x64,0xF4,0x14,0xBC,0x5C,0xCC,0x2C,
                0x72,0x92,0x02,0xE2,0x4A,0xAA,0x3A,0xDA,
                0x6E,0x8E,0x1E,0xFE,0x56,0xB6,0x26,0xC6,
2 ~) L: i4 ]. o4 k                0x7C,0x9C,0x0C,0xEC,0x44,0xA4,0x34,0xD4,
  t. S! X: L% u) H                0x60,0x80,0x10,0xF0,0x58,0xB8,0x28,0xC8,
, g' @) w: {. K/ q                0x75,0x95,0x05,0xE5,0x4D,0xAD,0x3D,0xDD,
" F* i$ a9 l) w* }' g+ W3 n                0x69,0x89,0x19,0xF9,0x51,0xB1,0x21,0xC1,
# X$ L. E% @7 L% s$ ]                0x7B,0x9B,0x0B,0xEB,0x43,0xA3,0x33,0xD3,
                0x67,0x87,0x17,0xF7,0x5F,0xBF,0x2F,0xCF},
! _1 l5 T. q1 L0 w
& \4 \! e- B( Z1 S3 P咱们常用都是反码表
) V! R! H4 f7 n6 p- ], \uint8 CRC8_Check_Table_XXX[256] = {
: P( n. [) u( S* W. F        0x00,0x07,0x0e,0x09,0x1c,0x1b,0x12,0x15,
1 f* v2 m$ s) T' H7 ]+ U8 V        0x38,0x3f,0x36,0x31,0x24,0x23,0x2a,0x2d,//0
8 w/ y; K# g4 P, F# Y0 Y" F        0x70,0x77,0x7e,0x79,0x6c,0x6b,0x62,0x65,
& \5 U4 R& M& i. J% \5 ]+ S        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
& o" L/ O- r) w, E        0x90,0x97,0x9e,0x99,0x8c,0x8b,0x82,0x85,
        0xa8,0xaf,0xa6,0xa1,0xb4,0xb3,0xba,0xbd,//3
        0xc7,0xc0,0xc9,0xce,0xdb,0xdc,0xd5,0xd2,
        0xff,0xf8,0xf1,0xf6,0xe3,0xe4,0xed,0xea,//4
$ L4 W/ }/ s5 e7 F# t- Y        0xb7,0xb0,0xb9,0xbe,0xab,0xac,0xa5,0xa2,
        0x8f,0x88,0x81,0x86,0x93,0x94,0x9d,0x9a,//5
        0x27,0x20,0x29,0x2e,0x3b,0x3c,0x35,0x32,
, j2 e4 l1 ^4 ~# j$ l        0x1f,0x18,0x11,0x16,0x03,0x04,0x0d,0x0a,//6
        0x57,0x50,0x59,0x5e,0x4b,0x4c,0x45,0x42,
1 q0 B5 W' j  q* a        0x6f,0x68,0x61,0x66,0x73,0x74,0x7d,0x7a,//7
        0x89,0x8e,0x87,0x80,0x95,0x92,0x9b,0x9c,
        0xb1,0xb6,0xbf,0xb8,0xad,0xaa,0xa3,0xa4,//8
8 ^+ M* x$ O2 Q$ T4 a' z        0xf9,0xfe,0xf7,0xf0,0xe5,0xe2,0xeb,0xec,
        0xc1,0xc6,0xcf,0xc8,0xdd,0xda,0xd3,0xd4,//9
9 H+ x/ ]: x; O  t6 v1 E  I        0x69,0x6e,0x67,0x60,0x75,0x72,0x7b,0x7c,
8 h6 O& ?3 Y" [( G% {; \        0x51,0x56,0x5f,0x58,0x4d,0x4a,0x43,0x44,//a
        0x19,0x1e,0x17,0x10,0x05,0x02,0x0b,0x0c,
        0x21,0x26,0x2f,0x28,0x3d,0x3a,0x33,0x34,//b
        0x4e,0x49,0x40,0x47,0x52,0x55,0x5c,0x5b,
5 J: g3 d8 _# T5 l        0x76,0x71,0x78,0x7f,0x6a,0x6d,0x64,0x63,//c
; E7 J; F. N* ~0 E        0x3e,0x39,0x30,0x37,0x22,0x25,0x2c,0x2b,
        0x06,0x01,0x08,0x0f,0x1a,0x1d,0x14,0x13,//d
        0xae,0xa9,0xa0,0xa7,0xb2,0xb5,0xbc,0xbb,
$ {) C1 n1 J  j) o+ s1 O        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
# k3 X3 ?2 O, G' f, X3 |};

sdwhlcf

怎么没人解答呢？？

laowang19660504

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