Compiler/TMS320C6748: TMS320C6748

HILLSON CHEN

Part Number: TMS320C6748

Tool/software: TI C/C++ Compiler

I have a FIR fliter question about source code :

DSP_fir_r8_h24_d.c -- FIR 24 Coefficient Filter (Radix 8)

const short x[NX + 2*PAD] =
{
0x032C, -0x544D, -0x6A9D, 0x09C4, 0x5226, 0x6A85, 0x6EDE, 0x1463, // Beginning
-0x158A, 0x75BC, 0x7407, 0x160B, -0x0E16, -0x3F82, 0x5F6D, -0x567B, // PAD

     0x453E, -0x321D, 0x2DBB, 0x77C7, -0x57B9, -0x4ADD, 0x10B7, -0x113F,
    -0x1A92, 0x7CA7, 0x4A14, 0x719D, 0x3E61, 0x1858, -0x0D4C, 0x3D94,
    -0x32B8, -0x14B2, 0x1B6A, 0x7A1D, 0x0D5B, 0x1D2C, 0x55D8, -0x5459,
     0x5030, -0x5CBD, 0x0180, 0x059B, 0x4D97, 0x49E3, 0x68A4, -0x3629,
    -0x7AA5, -0x582E, 0x1D05, 0x3A65, -0x4734, 0x3D6B, -0x6CE3, 0x4A99,
     0x1D54, -0x50B4, 0x62F5, -0x75A7, -0x6AFA, 0x5D26, 0x3C1A, -0x793D,
    -0x6493, 0x4282, -0x0020, 0x1BE0, 0x1A7F, 0x621B, -0x1C86, -0x254E,
    -0x12FB, -0x4E5B, 0x3409, 0x223E, 0x3856, -0x4179, -0x60C9, -0x102C,
     0x5EB6, -0x097B, 0x7A6E, 0x1450, -0x41CD, -0x133A, 0x0358, -0x2677,
    -0x0BA0, 0x6732, 0x19A5, -0x4961, -0x1E47, -0x6657, 0x57C6, 0x1E70,
     0x1F12, 0x59F9, 0x13A4, 0x16D9, 0x26E6, -0x4FE0, 0x39FA, -0x6AF4,
    -0x2829, -0x673F, 0x7460, 0x57A6, -0x5BB4, 0x424C, -0x6068, 0x2CC9,
     0x0F61, -0x4030, -0x00AD, 0x6AE1, -0x4FD3, 0x56ED, 0x2FDA, -0x759C,
    -0x726F, 0x78E3, 0x42DF, -0x63D3, -0x1F88, -0x71D0, 0x07E8, -0x6D4A,
     0x21E5, -0x6C4D, -0x0072, 0x0EEE, 0x749D, -0x4622, -0x2AF7, -0x3A2B,
     0x3DC4, 0x05D0, -0x00C7, 0x059F, 0x1C52, 0x36EE, 0x58B6, -0x7864,
    -0x145A, -0x3F1F, 0x4107, 0x1B89, 0x2024, 0x4771, 0x3F8F, 0x4298,
     0x231F, 0x6C44, -0x79AD, 0x58DA, -0x1706, 0x37E1, 0x6B2A, 0x6447,
    -0x7C33, 0x080C, 0x426E, 0x1F1C, -0x2095, 0x64D2, -0x7634, 0x4BC4,

-0x01CC, -0x1F8D, -0x35A1, 0x432A, -0x35C6, -0x0E0F, -0x7FEF, 0x3D0B, // Ending
0x3D0B, 0x2B67, -0x7BC7, 0x48D5, -0x1FE3, 0x0ADA, 0x4F02, -0x69DF // PAD
};

const short h[NH + 2*PAD] =
{
-0x6226, 0x4E99, 0x52AC, -0x322F, -0x4CF2, 0x34FE, -0x26B0, 0x512C, // Beginning
-0x7CE4, 0x59F0, -0x4137, -0x7CBE, -0x7F4B, -0x5471, -0x1A85, -0x0F38, // PAD

    -0x0007, 0x002A, -0x0006, 0x0027, -0x0016, 0x001E, 0x0047, 0x005B,
     0x0064, -0x0017, -0x001F, 0x0039, -0x0015, -0x0063, -0x0009, -0x0016,
    -0x0007, 0x002A, -0x0006, 0x0027, -0x0016, 0x001E, 0x0047, 0x005B,

0x524B, -0x71B5, 0x5C6E, 0x4C92, 0x6100, 0x4ED3, 0x7244, -0x5594, // Ending
-0x12C8, -0x6F88, 0x6EDB, 0x3284, -0x36A5, 0x33E6, 0x05AC, -0x1E10 // PAD
};

the two arrays(x and h), What's mean these value marked "// Beginning PAD " , "//Ending PAD " , how to obtain these values?

over 5 years ago