| zongqiang.zhang | 0c6a088 | 2019-08-07 14:48:21 +0800 | [diff] [blame^] | 1 | #include "crc.h" |
| 2 | |
| 3 | static u16 const crc_table[] = |
| 4 | { |
| 5 | //CRCTB1: ;?256?? |
| 6 | 0x00000,0x01021,0x02042,0x03063, |
| 7 | 0x04084,0x050a5,0x060c6,0x070e7, |
| 8 | 0x08108,0x09129,0x0a14a,0x0b16b, |
| 9 | 0x0c18c,0x0d1ad,0x0e1ce,0x0f1ef, |
| 10 | 0x01231,0x00210,0x03273,0x02252, |
| 11 | 0x052b5,0x04294,0x072f7,0x062d6, |
| 12 | 0x09339,0x08318,0x0b37b,0x0a35a, |
| 13 | 0x0d3bd,0x0c39c,0x0f3ff,0x0e3de, |
| 14 | 0x02462,0x03443,0x00420,0x01401, |
| 15 | 0x064e6,0x074c7,0x044a4,0x05485, |
| 16 | 0x0a56a,0x0b54b,0x08528,0x09509, |
| 17 | 0x0e5ee,0x0f5cf,0x0c5ac,0x0d58d, |
| 18 | 0x03653,0x02672,0x01611,0x00630, |
| 19 | 0x076d7,0x066f6,0x05695,0x046b4, |
| 20 | 0x0b75b,0x0a77a,0x09719,0x08738, |
| 21 | 0x0f7df,0x0e7fe,0x0d79d,0x0c7bc, |
| 22 | 0x048c4,0x058e5,0x06886,0x078a7, |
| 23 | 0x00840,0x01861,0x02802,0x03823, |
| 24 | 0x0c9cc,0x0d9ed,0x0e98e,0x0f9af, |
| 25 | 0x08948,0x09969,0x0a90a,0x0b92b, |
| 26 | 0x05af5,0x04ad4,0x07ab7,0x06a96, |
| 27 | 0x01a71,0x00a50,0x03a33,0x02a12, |
| 28 | 0x0dbfd,0x0cbdc,0x0fbbf,0x0eb9e, |
| 29 | 0x09b79,0x08b58,0x0bb3b,0x0ab1a, |
| 30 | 0x06ca6,0x07c87,0x04ce4,0x05cc5, |
| 31 | 0x02c22,0x03c03,0x00c60,0x01c41, |
| 32 | 0x0edae,0x0fd8f,0x0cdec,0x0ddcd, |
| 33 | 0x0ad2a,0x0bd0b,0x08d68,0x09d49, |
| 34 | 0x07e97,0x06eb6,0x05ed5,0x04ef4, |
| 35 | 0x03e13,0x02e32,0x01e51,0x00e70, |
| 36 | 0x0ff9f,0x0efbe,0x0dfdd,0x0cffc, |
| 37 | 0x0bf1b,0x0af3a,0x09f59,0x08f78, |
| 38 | //CRCTB2: ;?256?? |
| 39 | 0x09188,0x081a9,0x0b1ca,0x0a1eb, |
| 40 | 0x0d10c,0x0c12d,0x0f14e,0x0e16f, |
| 41 | 0x01080,0x000a1,0x030c2,0x020e3, |
| 42 | 0x05004,0x04025,0x07046,0x06067, |
| 43 | 0x083b9,0x09398,0x0a3fb,0x0b3da, |
| 44 | 0x0c33d,0x0d31c,0x0e37f,0x0f35e, |
| 45 | 0x002b1,0x01290,0x022f3,0x032d2, |
| 46 | 0x04235,0x05214,0x06277,0x07256, |
| 47 | 0x0b5ea,0x0a5cb,0x095a8,0x08589, |
| 48 | 0x0f56e,0x0e54f,0x0d52c,0x0c50d, |
| 49 | 0x034e2,0x024c3,0x014a0,0x00481, |
| 50 | 0x07466,0x06447,0x05424,0x04405, |
| 51 | 0x0a7db,0x0b7fa,0x08799,0x097b8, |
| 52 | 0x0e75f,0x0f77e,0x0c71d,0x0d73c, |
| 53 | 0x026d3,0x036f2,0x00691,0x016b0, |
| 54 | 0x06657,0x07676,0x04615,0x05634, |
| 55 | 0x0d94c,0x0c96d,0x0f90e,0x0e92f, |
| 56 | 0x099c8,0x089e9,0x0b98a,0x0a9ab, |
| 57 | 0x05844,0x04865,0x07806,0x06827, |
| 58 | 0x018c0,0x008e1,0x03882,0x028a3, |
| 59 | 0x0cb7d,0x0db5c,0x0eb3f,0x0fb1e, |
| 60 | 0x08bf9,0x09bd8,0x0abbb,0x0bb9a, |
| 61 | 0x04a75,0x05a54,0x06a37,0x07a16, |
| 62 | 0x00af1,0x01ad0,0x02ab3,0x03a92, |
| 63 | 0x0fd2e,0x0ed0f,0x0dd6c,0x0cd4d, |
| 64 | 0x0bdaa,0x0ad8b,0x09de8,0x08dc9, |
| 65 | 0x07c26,0x06c07,0x05c64,0x04c45, |
| 66 | 0x03ca2,0x02c83,0x01ce0,0x00cc1, |
| 67 | 0x0ef1f,0x0ff3e,0x0cf5d,0x0df7c, |
| 68 | 0x0af9b,0x0bfba,0x08fd9,0x09ff8, |
| 69 | 0x06e17,0x07e36,0x04e55,0x05e74, |
| 70 | 0x02e93,0x03eb2,0x00ed1,0x01ef0 |
| 71 | }; |
| 72 | |
| 73 | u16 calcCRC( u8 *pBuffer, u16 BufferLength) |
| 74 | { |
| 75 | u16 crc_reg = 0; |
| 76 | |
| 77 | while (BufferLength--) |
| 78 | { |
| 79 | crc_reg = (crc_reg << 8) ^ crc_table[(crc_reg>>8) ^ *pBuffer++]; |
| 80 | } |
| 81 | |
| 82 | return crc_reg; |
| 83 | } |