毕业设计的问题，诚心求一个高手帮帮忙。

我的毕业设计题目是用TMS320F2812EVM做一个变声器，现在实在弄不出来，因为DSP的编程有问题，有谁能给我一点思路和程序指点吗?如果有谁能帮忙的话那就感激不尽了，需要的话加我QQ，53430188。
我打算用AD+FFT+DA的流程，但是在具体操作的时候发现不会关联这三个模块。

在线等

目前的问题是FFT文件没办法加载到EVM上去，可能是CMD文件有问题，我把我的FFT的CMD贴给大家看看，看看谁能帮忙找找原因
/****************************************************************************/
/* SINEWAVE.CMD - COMMAND FILE FOR LINKING TMS27xx/TMS28xx C PROGRAMS */
/* */
/* Description: This file is a sample command file that can be used */
/* for linking programs built with the TMS320C28xx C */
/* Compiler. Use it as a guideline; you may want to change */
/* the allocation scheme according to the size of your */
/* program and the memory layout of your target system. */
/****************************************************************************/

MEMORY
{
PAGE 0 : PROG(R) : origin = 0x3D8000, length = 0x20000
PAGE 0 : BOOT(R) : origin = 0x3FF000, length = 0xFC0
PAGE 0 : RESET(R) : origin = 0x3FFFC0, length = 0x2
PAGE 0 : VECS(R) : origin = 0x3FFFC2, length = 0x3E
PAGE 0 : PIEVECS(R) : origin = 0x000D00, length = 0xFF
PAGE 0 : H0RAM(RW) : origin = 0x3F8000, length = 0x2000

PAGE 1 : M0RAM(RW) : origin = 0x000000, length = 0x400
PAGE 1 : M1RAM(RW) : origin = 0x000400, length = 0x400
PAGE 1 : L0L1RAM(RW) : origin = 0x008000, length = 0x2000

}

SECTIONS
{
/* 22-bit program sections */
.reset : > RESET, PAGE = 0
vectors : > VECS, PAGE = 0
.pinit : > H0RAM, PAGE = 0
.cinit : > H0RAM, PAGE = 0
.text : > H0RAM, PAGE = 0
FFTtf: > H0RAM, PAGE = 0
DLOG : > H0RAM, PAGE = 0
FFTipcb ALIGN(4096) : { } > L0L1RAM PAGE 1
FFTmag : > L0L1RAM PAGE 1
SINTBL : > L0L1RAM, PAGE = 1

/* 16-Bit data sections */
.const : > L0L1RAM, PAGE = 1
.bss : > L0L1RAM, PAGE = 1
.stack : > M1RAM, PAGE = 1
.sysmem : > M0RAM, PAGE = 1


/* 32-bit data sections */
.ebss : > L0L1RAM, PAGE = 1
.econst : > L0L1RAM, PAGE = 1
.esysmem : > L0L1RAM, PAGE = 1
}