fft_code_tables.h

该源码为C8051F120混合片上数据采集系统中实现4~32768点数据的FFT运算功能。所占的代码空间小

0xF042, 0xF21E, 0xF3DE, 0xF582, 0xF709, 0xF873, 0xF9BE, 0xFAEC,
0xFBFB, 0xFCEB, 0xFDBB, 0xFE6C, 0xFEFD, 0xFF6E, 0xFFBF, 0xFFEF
};
#endif

#endif

//-----------------------------------------------------------------------------
// Window Functions for NUM_FFT = 128
//-----------------------------------------------------------------------------
#if (NUM_FFT == 128)

#if (WINDOW_TYPE == 1)
// Triangle Window
unsigned int code WindowFunc[64] =
{
0x0000, 0x0400, 0x0800, 0x0C00, 0x1000, 0x1400, 0x1800, 0x1C00,
0x2000, 0x2400, 0x2800, 0x2C00, 0x3000, 0x3400, 0x3800, 0x3C00,
0x4000, 0x4400, 0x4800, 0x4C00, 0x5000, 0x5400, 0x5800, 0x5C00,
0x6000, 0x6400, 0x6800, 0x6C00, 0x7000, 0x7400, 0x7800, 0x7C00,
0x8000, 0x8400, 0x8800, 0x8C00, 0x9000, 0x9400, 0x9800, 0x9C00,
0xA000, 0xA400, 0xA800, 0xAC00, 0xB000, 0xB400, 0xB800, 0xBC00,
0xC000, 0xC400, 0xC800, 0xCC00, 0xD000, 0xD400, 0xD800, 0xDC00,
0xE000, 0xE400, 0xE800, 0xEC00, 0xF000, 0xF400, 0xF800, 0xFC00
};
#endif

#if (WINDOW_TYPE == 2)
// Hanning Window
unsigned int code WindowFunc[64] =
{
0x0000, 0x0027, 0x009D, 0x0162, 0x0275, 0x03D6, 0x0582, 0x077B,
0x09BE, 0x0C4A, 0x0F1D, 0x1235, 0x1592, 0x1930, 0x1D0D, 0x2128,
0x257D, 0x2A0A, 0x2ECC, 0x33C0, 0x38E3, 0x3E31, 0x43A9, 0x4945,
0x4F04, 0x54E0, 0x5AD7, 0x60E6, 0x6707, 0x6D37, 0x7374, 0x79B8,
0x7FFF, 0x8647, 0x8C8B, 0x92C8, 0x98F8, 0x9F19, 0xA528, 0xAB1F,
0xB0FB, 0xB6BA, 0xBC56, 0xC1CE, 0xC71C, 0xCC3F, 0xD133, 0xD5F5,
0xDA82, 0xDED7, 0xE2F2, 0xE6CF, 0xEA6D, 0xEDCA, 0xF0E2, 0xF3B5,
0xF641, 0xF884, 0xFA7D, 0xFC29, 0xFD8A, 0xFE9D, 0xFF62, 0xFFD8
};
#endif


#if (WINDOW_TYPE == 3)
// Hamming Window
unsigned int code WindowFunc[64] =
{
0x147A, 0x149F, 0x150C, 0x15C1, 0x16BE, 0x1802, 0x198C, 0x1B5D,
0x1D71, 0x1FC9, 0x2262, 0x253B, 0x2853, 0x2BA7, 0x2F35, 0x32FC,
0x36F8, 0x3B28, 0x3F88, 0x4417, 0x48D0, 0x4DB3, 0x52BA, 0x57E4,
0x5D2C, 0x6291, 0x680E, 0x6DA0, 0x7344, 0x78F6, 0x7EB2, 0x8476,
0x8A3D, 0x9004, 0x95C8, 0x9B84, 0xA136, 0xA6DA, 0xAC6C, 0xB1E9,
0xB74E, 0xBC96, 0xC1C0, 0xC6C7, 0xCBA9, 0xD063, 0xD4F2, 0xD952,
0xDD82, 0xE17E, 0xE545, 0xE8D3, 0xEC27, 0xEF3F, 0xF218, 0xF4B1,
0xF709, 0xF91D, 0xFAED, 0xFC78, 0xFDBC, 0xFEB9, 0xFF6E, 0xFFDB
};
#endif


#if (WINDOW_TYPE == 4)
// Blackman Window
unsigned int code WindowFunc[64] =
{
0x0000, 0x000E, 0x0039, 0x0080, 0x00E6, 0x016A, 0x020F, 0x02D5,
0x03BE, 0x04CD, 0x0603, 0x0762, 0x08ED, 0x0AA7, 0x0C91, 0x0EAF,
0x1102, 0x138D, 0x1652, 0x1953, 0x1C91, 0x200F, 0x23CD, 0x27CC,
0x2C0E, 0x3091, 0x3555, 0x3A5B, 0x3FA0, 0x4523, 0x4AE3, 0x50DB,
0x570A, 0x5D6B, 0x63FA, 0x6AB4, 0x7192, 0x788F, 0x7FA5, 0x86CF,
0x8E05, 0x9541, 0x9C7B, 0xA3AB, 0xAACB, 0xB1D3, 0xB8BA, 0xBF78,
0xC607, 0xCC5E, 0xD275, 0xD846, 0xDDC9, 0xE2F6, 0xE7C8, 0xEC39,
0xF042, 0xF3DE, 0xF709, 0xF9BE, 0xFBFB, 0xFDBB, 0xFEFD, 0xFFBF
};
#endif

#endif


//-----------------------------------------------------------------------------
// Window Functions for NUM_FFT = 64
//-----------------------------------------------------------------------------
#if (NUM_FFT == 64)

#if (WINDOW_TYPE == 1)
// Triangle Window
unsigned int code WindowFunc[32] =
{
0x0000, 0x0800, 0x1000, 0x1800, 0x2000, 0x2800, 0x3000, 0x3800,
0x4000, 0x4800, 0x5000, 0x5800, 0x6000, 0x6800, 0x7000, 0x7800,
0x8000, 0x8800, 0x9000, 0x9800, 0xA000, 0xA800, 0xB000, 0xB800,
0xC000, 0xC800, 0xD000, 0xD800, 0xE000, 0xE800, 0xF000, 0xF800
};
#endif

#if (WINDOW_TYPE == 2)
// Hanning Window
unsigned int code WindowFunc[32] =
{
0x0000, 0x009D, 0x0275, 0x0582, 0x09BE, 0x0F1D, 0x1592, 0x1D0D,
0x257D, 0x2ECC, 0x38E3, 0x43A9, 0x4F04, 0x5AD7, 0x6707, 0x7374,
0x7FFF, 0x8C8B, 0x98F8, 0xA528, 0xB0FB, 0xBC56, 0xC71C, 0xD133,
0xDA82, 0xE2F2, 0xEA6D, 0xF0E2, 0xF641, 0xFA7D, 0xFD8A, 0xFF62
};
#endif


#if (WINDOW_TYPE == 3)
// Hamming Window
unsigned int code WindowFunc[32] =
{
0x147A, 0x150C, 0x16BE, 0x198C, 0x1D71, 0x2262, 0x2853, 0x2F35,
0x36F8, 0x3F88, 0x48D0, 0x52BA, 0x5D2C, 0x680E, 0x7344, 0x7EB2,
0x8A3D, 0x95C8, 0xA136, 0xAC6C, 0xB74E, 0xC1C0, 0xCBA9, 0xD4F2,
0xDD82, 0xE545, 0xEC27, 0xF218, 0xF709, 0xFAED, 0xFDBC, 0xFF6E
};
#endif


#if (WINDOW_TYPE == 4)
// Blackman Window
unsigned int code WindowFunc[32] =
{
0x0000, 0x0039, 0x00E6, 0x020F, 0x03BE, 0x0603, 0x08ED, 0x0C91,
0x1102, 0x1652, 0x1C91, 0x23CD, 0x2C0E, 0x3555, 0x3FA0, 0x4AE3,
0x570A, 0x63FA, 0x7192, 0x7FA5, 0x8E05, 0x9C7B, 0xAACB, 0xB8BA,
0xC607, 0xD275, 0xDDC9, 0xE7C8, 0xF042, 0xF709, 0xFBFB, 0xFEFD
};
#endif

#endif


//-----------------------------------------------------------------------------
// Window Functions for NUM_FFT = 32
//-----------------------------------------------------------------------------
#if (NUM_FFT == 32)

#if (WINDOW_TYPE == 1)
// Triangle Window
unsigned int code WindowFunc[16] =
{
0x0000, 0x1000, 0x2000, 0x3000, 0x4000, 0x5000, 0x6000, 0x7000,
0x8000, 0x9000, 0xA000, 0xB000, 0xC000, 0xD000, 0xE000, 0xF000
};
#endif

#if (WINDOW_TYPE == 2)
// Hanning Window
unsigned int code WindowFunc[16] =
{
0x0000, 0x0275, 0x09BE, 0x1592, 0x257D, 0x38E3, 0x4F04, 0x6707,
0x7FFF, 0x98F8, 0xB0FB, 0xC71C, 0xDA82, 0xEA6D, 0xF641, 0xFD8A
};
#endif


#if (WINDOW_TYPE == 3)
// Hamming Window
unsigned int code WindowFunc[16] =
{
0x147A, 0x16BE, 0x1D71, 0x2853, 0x36F8, 0x48D0, 0x5D2C, 0x7344,
0x8A3D, 0xA136, 0xB74E, 0xCBA9, 0xDD82, 0xEC27, 0xF709, 0xFDBC
};
#endif


#if (WINDOW_TYPE == 4)
// Blackman Window
unsigned int code WindowFunc[16] =
{
0x0000, 0x00E6, 0x03BE, 0x08ED, 0x1102, 0x1C91, 0x2C0E, 0x3FA0,
0x570A, 0x7192, 0x8E05, 0xAACB, 0xC607, 0xDDC9, 0xF042, 0xFBFB
};
#endif

#endif


//-----------------------------------------------------------------------------
// Window Functions for NUM_FFT = 16
//-----------------------------------------------------------------------------
#if (NUM_FFT == 16)

#if (WINDOW_TYPE == 1)
// Triangle Window
unsigned int code WindowFunc[8] =
{
0x0000, 0x2000, 0x4000, 0x6000, 0x8000, 0xA000, 0xC000, 0xE000
};
#endif

#if (WINDOW_TYPE == 2)
// Hanning Window
unsigned int code WindowFunc[8] =
{
0x0000, 0x09BE, 0x257D, 0x4F04, 0x7FFF, 0xB0FB, 0xDA82, 0xF641
};
#endif


#if (WINDOW_TYPE == 3)
// Hamming Window
unsigned int code WindowFunc[8] =
{
0x147A, 0x1D71, 0x36F8, 0x5D2C, 0x8A3D, 0xB74E, 0xDD82, 0xF709
};
#endif


#if (WINDOW_TYPE == 4)
// Blackman Window
unsigned int code WindowFunc[8] =
{
0x0000, 0x03BE, 0x1102, 0x2C0E, 0x570A, 0x8E05, 0xC607, 0xF042
};
#endif

#endif


//-----------------------------------------------------------------------------
// Window Functions for NUM_FFT = 8
//-----------------------------------------------------------------------------
#if (NUM_FFT == 8)

#if (WINDOW_TYPE == 1)
// Triangle Window
unsigned int code WindowFunc[4] =
{
0x0000, 0x4000, 0x8000, 0xC000
};
#endif

#if (WINDOW_TYPE == 2)
// Hanning Window
unsigned int code WindowFunc[4] =
{
0x0000, 0x257D, 0x7FFF, 0xDA82
};
#endif


#if (WINDOW_TYPE == 3)
// Hamming Window
unsigned int code WindowFunc[4] =
{
0x147A, 0x36F8, 0x8A3D, 0xDD82
};
#endif


#if (WINDOW_TYPE == 4)
// Blackman Window
unsigned int code WindowFunc[4] =
{
0x0000, 0x1102, 0x570A, 0xC607
};
#endif

#endif


//-----------------------------------------------------------------------------
// Window Functions for NUM_FFT = 4
//-----------------------------------------------------------------------------
#if (NUM_FFT == 4)

#if (WINDOW_TYPE == 1)
// Triangle Window
unsigned int code WindowFunc[2] =
{
0x0000, 0x8000
};
#endif

#if (WINDOW_TYPE == 2)
// Hanning Window
unsigned int code WindowFunc[2] =
{
0x0000, 0x7FFF
};
#endif


#if (WINDOW_TYPE == 3)
// Hamming Window
unsigned int code WindowFunc[2] =
{
0x147A, 0x8A3D
};
#endif


#if (WINDOW_TYPE == 4)
// Blackman Window
unsigned int code WindowFunc[2] =
{
0x0000, 0x570A
};
#endif

#endif