#include "crc_cfg.h"
//---CRC32表
const UINT32_T crc32Tab[256] =
{
0x00000000,0x04C11DB7,0x09823B6E,0x0D4326D9,0x130476DC,0x17C56B6B,0x1A864DB2,0x1E475005,
0x2608EDB8,0x22C9F00F,0x2F8AD6D6,0x2B4BCB61,0x350C9B64,0x31CD86D3,0x3C8EA00A,0x384FBDBD,
0x4C11DB70,0x48D0C6C7,0x4593E01E,0x4152FDA9,0x5F15ADAC,0x5BD4B01B,0x569796C2,0x52568B75,
0x6A1936C8,0x6ED82B7F,0x639B0DA6,0x675A1011,0x791D4014,0x7DDC5DA3,0x709F7B7A,0x745E66CD,
0x9823B6E0,0x9CE2AB57,0x91A18D8E,0x95609039,0x8B27C03C,0x8FE6DD8B,0x82A5FB52,0x8664E6E5,
0xBE2B5B58,0xBAEA46EF,0xB7A96036,0xB3687D81,0xAD2F2D84,0xA9EE3033,0xA4AD16EA,0xA06C0B5D,
0xD4326D90,0xD0F37027,0xDDB056FE,0xD9714B49,0xC7361B4C,0xC3F706FB,0xCEB42022,0xCA753D95,
0xF23A8028,0xF6FB9D9F,0xFBB8BB46,0xFF79A6F1,0xE13EF6F4,0xE5FFEB43,0xE8BCCD9A,0xEC7DD02D,
0x34867077,0x30476DC0,0x3D044B19,0x39C556AE,0x278206AB,0x23431B1C,0x2E003DC5,0x2AC12072,
0x128E9DCF,0x164F8078,0x1B0CA6A1,0x1FCDBB16,0x018AEB13,0x054BF6A4,0x0808D07D,0x0CC9CDCA,
0x7897AB07,0x7C56B6B0,0x71159069,0x75D48DDE,0x6B93DDDB,0x6F52C06C,0x6211E6B5,0x66D0FB02,
0x5E9F46BF,0x5A5E5B08,0x571D7DD1,0x53DC6066,0x4D9B3063,0x495A2DD4,0x44190B0D,0x40D816BA,
0xACA5C697,0xA864DB20,0xA527FDF9,0xA1E6E04E,0xBFA1B04B,0xBB60ADFC,0xB6238B25,0xB2E29692,
0x8AAD2B2F,0x8E6C3698,0x832F1041,0x87EE0DF6,0x99A95DF3,0x9D684044,0x902B669D,0x94EA7B2A,
0xE0B41DE7,0xE4750050,0xE9362689,0xEDF73B3E,0xF3B06B3B,0xF771768C,0xFA325055,0xFEF34DE2,
0xC6BCF05F,0xC27DEDE8,0xCF3ECB31,0xCBFFD686,0xD5B88683,0xD1799B34,0xDC3ABDED,0xD8FBA05A,
0x690CE0EE,0x6DCDFD59,0x608EDB80,0x644FC637,0x7A089632,0x7EC98B85,0x738AAD5C,0x774BB0EB,
0x4F040D56,0x4BC510E1,0x46863638,0x42472B8F,0x5C007B8A,0x58C1663D,0x558240E4,0x51435D53,
0x251D3B9E,0x21DC2629,0x2C9F00F0,0x285E1D47,0x36194D42,0x32D850F5,0x3F9B762C,0x3B5A6B9B,
0x0315D626,0x07D4CB91,0x0A97ED48,0x0E56F0FF,0x1011A0FA,0x14D0BD4D,0x19939B94,0x1D528623,
0xF12F560E,0xF5EE4BB9,0xF8AD6D60,0xFC6C70D7,0xE22B20D2,0xE6EA3D65,0xEBA91BBC,0xEF68060B,
0xD727BBB6,0xD3E6A601,0xDEA580D8,0xDA649D6F,0xC423CD6A,0xC0E2D0DD,0xCDA1F604,0xC960EBB3,
0xBD3E8D7E,0xB9FF90C9,0xB4BCB610,0xB07DABA7,0xAE3AFBA2,0xAAFBE615,0xA7B8C0CC,0xA379DD7B,
0x9B3660C6,0x9FF77D71,0x92B45BA8,0x9675461F,0x8832161A,0x8CF30BAD,0x81B02D74,0x857130C3,
0x5D8A9099,0x594B8D2E,0x5408ABF7,0x50C9B640,0x4E8EE645,0x4A4FFBF2,0x470CDD2B,0x43CDC09C,
0x7B827D21,0x7F436096,0x7200464F,0x76C15BF8,0x68860BFD,0x6C47164A,0x61043093,0x65C52D24,
0x119B4BE9,0x155A565E,0x18197087,0x1CD86D30,0x029F3D35,0x065E2082,0x0B1D065B,0x0FDC1BEC,
0x3793A651,0x3352BBE6,0x3E119D3F,0x3AD08088,0x2497D08D,0x2056CD3A,0x2D15EBE3,0x29D4F654,
0xC5A92679,0xC1683BCE,0xCC2B1D17,0xC8EA00A0,0xD6AD50A5,0xD26C4D12,0xDF2F6BCB,0xDBEE767C,
0xE3A1CBC1,0xE760D676,0xEA23F0AF,0xEEE2ED18,0xF0A5BD1D,0xF464A0AA,0xF9278673,0xFDE69BC4,
0x89B8FD09,0x8D79E0BE,0x803AC667,0x84FBDBD0,0x9ABC8BD5,0x9E7D9662,0x933EB0BB,0x97FFAD0C,
0xAFB010B1,0xAB710D06,0xA6322BDF,0xA2F33668,0xBCB4666D,0xB8757BDA,0xB5365D03,0xB1F740B4
};
//---全局变量定义
CRC_HandlerType g_CRC;
pCRC_HandlerType pCRC = &g_CRC;
///////////////////////////////////////////////////////////////////////////////
//////函 数：
//////功 能：
//////输入参数:
//////输出参数:
//////说 明：
//////////////////////////////////////////////////////////////////////////////
void CRC32_Init(UINT8_T isHW)
{
CRC32_DeInit(isHW);
if (isHW)
{
//---使能CRC模块的总线时钟
LL_AHB1_GRP1_EnableClock(LL_AHB1_GRP1_PERIPH_CRC);
}
else
{
//---不使能CRC模块的总线时钟
LL_AHB1_GRP1_DisableClock(LL_AHB1_GRP1_PERIPH_CRC);
}
pCRC->msg8BitsTask = NULL;
pCRC->msg32BitsTask = NULL;
}
///////////////////////////////////////////////////////////////////////////////
//////函 数：
//////功 能：
//////输入参数:
//////输出参数:
//////说 明：
//////////////////////////////////////////////////////////////////////////////
void CRC32_DeInit(UINT8_T isHW)
{
if (isHW)
{
LL_CRC_DeInit(CRC);
}
}
///////////////////////////////////////////////////////////////////////////////
//////函 数：
//////功 能：
//////输入参数:
//////输出参数:
//////说 明：
//////////////////////////////////////////////////////////////////////////////
void CRC32_HWReSet(void)
{
//---复位CRC
LL_CRC_ResetCRCCalculationUnit(CRC);
}
///////////////////////////////////////////////////////////////////////////////
//////函 数：
//////功 能：
//////输入参数:
//////输出参数:
//////说 明：
//////////////////////////////////////////////////////////////////////////////
UINT32_T CRC32_Revbit(UINT32_T uData)
{
UINT32_T uRevData = 0, uIndex = 0;
uRevData |= ((uData >> uIndex) & 0x01);
for (uIndex = 1;uIndex < 32;uIndex++)
{
uRevData <<= 1;
uRevData |= ((uData >> uIndex) & 0x01);
}
return uRevData;
}
///////////////////////////////////////////////////////////////////////////////
//////函 数：
//////功 能： 硬件计算CRC的值
//////输入参数:
//////输出参数:
//////说 明：
//////////////////////////////////////////////////////////////////////////////
UINT32_T CRC32_HWGetCalc8BitsData(UINT8_T *pVal, UINT32_T length)
{
UINT32_T uIndex = 0, uData = 0;
//---复位CRC模块
CRC32_HWReSet();
//---计算CRC值
for (uIndex=0;uIndex<length;uIndex++)
{
//---强制转换为4字节数据
uData = (UINT32_T)pVal[uIndex];
//---计算CRC
LL_CRC_FeedData32(CRC, uData);
}
//---返回计算结果
return LL_CRC_ReadData32(CRC);
}
///////////////////////////////////////////////////////////////////////////////
//////函 数：
//////功 能：
//////输入参数:
//////输出参数:
//////说 明：
//////////////////////////////////////////////////////////////////////////////
UINT32_T CRC32_HWGetCalc323BitsData(UINT32_T *pVal, UINT32_T length)
{
UINT32_T uIndex = 0, uData = 0;
//---复位CRC模块
CRC32_HWReSet();
//---计算CRC值
for (uIndex = 0;uIndex < length;uIndex++)
{
//---强制转换为4字节数据
uData = pVal[uIndex];
//---计算CRC
LL_CRC_FeedData32(CRC, uData);
}
//---返回计算结果
return LL_CRC_ReadData32(CRC);
}
///////////////////////////////////////////////////////////////////////////////
//////函 数：
//////功 能： 软件查表进行CRC32计算
//////输入参数:
//////输出参数:
//////说 明：
//////////////////////////////////////////////////////////////////////////////
UINT32_T CRC32_SWGetCalc8BitsData(UINT8_T *pVal, UINT32_T length)
{
UINT32_T nReg= 0xFFFFFFFF;//CRC寄存器
UINT32_T nTemp = 0;
UINT32_T byteIndex=0, uIndex=0;
//---开始计算CRC32的值
for (uIndex = 0; uIndex < length; uIndex++)
{
//---强制转换为4字节数据
nReg ^= (UINT32_T)pVal[uIndex];
//---4字节数据计算
for (byteIndex = 0; byteIndex < 4; byteIndex++)
{
//---取一个字节，查表
nTemp = crc32Tab[((nReg >> 24) & 0xFF)];
//---丢掉计算过的头一个BYTE
nReg <<= 8;
//---与前一个BYTE的计算结果异或
nReg ^= nTemp;
}
}
return nReg;
}
///////////////////////////////////////////////////////////////////////////////
//////函 数：
//////功 能：
//////输入参数:
//////输出参数:
//////说 明：
//////////////////////////////////////////////////////////////////////////////
UINT32_T CRC32_SWGetCalc32BitsData(UINT32_T *pVal, UINT32_T length)
{
UINT32_T nReg = 0xFFFFFFFF;//CRC寄存器
UINT32_T nTemp = 0;
UINT32_T byteIndex = 0, uIndex = 0;
//---开始计算CRC32的值
for (uIndex = 0; uIndex < length; uIndex++)
{
//---强制转换为4字节数据
nReg ^= pVal[uIndex];
//---4字节数据计算
for (byteIndex = 0; byteIndex < 4; byteIndex++)
{
//---取一个字节，查表
nTemp = crc32Tab[((nReg >> 24) & 0xFF)];
//---丢掉计算过的头一个BYTE
nReg <<= 8;
//---与前一个BYTE的计算结果异或
nReg ^= nTemp;
}
}
return nReg;
}
#ifndef CRC_CFG_H
#define CRC_CFG_H
//////////////////////////////////////////////////////////////////////////////////////
#include "complier_lib.h"
//---消息结构体
typedef struct _CRC_HandlerType CRC_HandlerType;
//---指针消息结构体
typedef struct _CRC_HandlerType *pCRC_HandlerType;
//---结构定义
struct _CRC_HandlerType
{
UINT32_T(*msg8BitsTask)(UINT8_T *pVal, UINT32_T length);
UINT32_T(*msg32BitsTask)(UINT32_T *pVal, UINT32_T length);
};
//---提供外部调用的结构
extern CRC_HandlerType g_CRC;
extern pCRC_HandlerType pCRC;
//---函数定义
void CRC32_Init(UINT8_T isHW);
void CRC32_DeInit(UINT8_T isHW);
UINT32_T CRC32_HWGetCalc8BitsData(UINT8_T *pVal, UINT32_T length);
UINT32_T CRC32_HWGetCalc323BitsData(UINT32_T *pVal, UINT32_T length);
UINT32_T CRC32_SWGetCalc8BitsData(UINT8_T *pVal, UINT32_T length);
UINT32_T CRC32_SWGetCalc32BitsData(UINT32_T *pVal, UINT32_T length);
//////////////////////////////////////////////////////////////////////////////////////
#endif /* CRC_CFG_H */
