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本帖最后由 cjsb37 于 2013-4-29 09:01 编辑
我写了一个简单程序,用到了TI的FFT的库,其他的都好,现在就是fft结构体里面的几个函数在Flash中不运行,也试验过将他们拷贝到RAM中,效果一样,不运行,而用XDS510在RAM中运行没有问题的,实在找不到原因了,发上来请大家帮忙,我在线等待回应,谢谢!
代码:
#include "DSP280x_Device.h" // DSP280x Headerfile Include File
#include "DSP280x_Examples.h" // DSP280x Examples Include File
#include "fft.h"
#define N 256
#pragma DATA_SECTION(ipcb, "FFTipcb");
#pragma DATA_SECTION(mag, "FFTmag");
CFFT32 fft=CFFT32_256P_DEFAULTS;
long ipcb[2*N];
long mag[N];
const long win[N/2]=HAMMING256;
void main(void)
{
Uint16 i,j;
InitSysCtrl();
InitGpio();
EALLOW;
GpioCtrlRegs.GPADIR.all = 0x007F; // GPIO0-GPIO31 are GP inputs
GpioCtrlRegs.GPAPUD.all = 0x007F;
EDIS;
DINT;
InitPieCtrl();
IER = 0x0000;
IFR = 0x0000;
InitPieVectTable();
MemCopy(&RamfuncsLoadStart, &RamfuncsLoadEnd, &RamfuncsRunStart);
InitFlash();
GpioDataRegs.GPASET.all = 0x003F;
fft.ipcbptr=ipcb;
fft.magptr= mag;
fft.winptr=(long *)win;
GpioDataRegs.GPACLEAR.all = 0x0003;
fft.init(&fft);
while(1)
{
GpioDataRegs.GPATOGGLE.bit.GPIO5 = 1;
GpioDataRegs.GPATOGGLE.bit.GPIO6 = 1;
CFFT32_brev1(ipcb,ipcb,N);
fft.izero(&fft);
fft.calc(&fft);
fft.mag(&fft);
for(i = 0; i < 2000; i++)
for(j = 0; j < 3000; j++){}
}
}
CMD文件:
MEMORY
{
PAGE 0: /* Program Memory */
/* Memory (RAM/FLASH/OTP) blocks can be moved to PAGE1 for data allocation */
RAML0 : origin = 0x008000, length = 0x001000 /* on-chip RAM block L0 */
OTP : origin = 0x3D7800, length = 0x000400 /* on-chip OTP */
FLASHF : origin = 0x3E0000, length = 0x004000 /* on-chip FLASH */
FLASHE : origin = 0x3E4000, length = 0x003F80 /* on-chip FLASH */
FLASHD : origin = 0x3E8000, length = 0x004000 /* on-chip FLASH */
FLASHC : origin = 0x3EC000, length = 0x004000 /* on-chip FLASH */
FLASHA : origin = 0x3F4000, length = 0x003F80 /* on-chip FLASH */
CSM_RSVD : origin = 0x3F7F80, length = 0x000076 /* Part of FLASHA. Program with all 0x0000 when CSM is in use. */
BEGIN : origin = 0x3F7FF6, length = 0x000002 /* Part of FLASHA. Used for "boot to Flash" bootloader mode. */
CSM_PWL : origin = 0x3F7FF8, length = 0x000008 /* Part of FLASHA. CSM password locations in FLASHA */
ROM : origin = 0x3FF000, length = 0x000FC0 /* Boot ROM */
RESET : origin = 0x3FFFC0, length = 0x000002 /* part of boot ROM */
VECTORS : origin = 0x3FFFC2, length = 0x00003E /* part of boot ROM */
PAGE 1 : /* Data Memory */
/* Memory (RAM/FLASH/OTP) blocks can be moved to PAGE0 for program allocation */
/* Registers remain on PAGE1 */
RAMM0 : origin = 0x000000, length = 0x000400 /* on-chip RAM block M0 */
BOOT_RSVD : origin = 0x000400, length = 0x000080 /* Part of M1, BOOT rom will use this for stack */
RAMM1 : origin = 0x000480, length = 0x000380 /* on-chip RAM block M1 */
RAML1 : origin = 0x009000, length = 0x001000 /* on-chip RAM block L1 */
FLASHH : origin = 0x3D8000, length = 0x004000 /* on-chip FLASH */
FLASHG : origin = 0x3DC000, length = 0x004000 /* on-chip FLASH */
FLASHB : origin = 0x3F0000, length = 0x004000 /* on-chip FLASH */
RAMH0 : origin = 0x3FA000, length = 0x002000 /* on-chip RAM block H0 */
}
/* Allocate sections to memory blocks.
Note:
codestart user defined section in DSP28_CodeStartBranch.asm used to redirect code
execution when booting to flash
ramfuncs user defined section to store functions that will be copied from Flash into RAM
*/
SECTIONS
{
/* Allocate program areas: */
.cinit : > FLASHA PAGE = 0
.pinit : > FLASHA, PAGE = 0
.text : > FLASHA PAGE = 0
codestart : > BEGIN PAGE = 0
ramfuncs : LOAD = FLASHD,
RUN = RAML0,
LOAD_START(_RamfuncsLoadStart),
LOAD_END(_RamfuncsLoadEnd),
RUN_START(_RamfuncsRunStart),
PAGE = 0
csmpasswds : > CSM_PWL PAGE = 0
csm_rsvd : > CSM_RSVD PAGE = 0
/* FFT Program areas;*/
FFTipcb ALIGN(512):{} > RAML1 PAGE = 1
FFTmag > RAML1 PAGE = 1
FFTtf > FLASHD PAGE = 0
/* Allocate uninitalized data sections: */
.stack : > RAMM0 PAGE = 1
.ebss : > RAML1 PAGE = 1
.esysmem : > RAMH0 PAGE = 1
/* Initalized sections go in Flash */
/* For SDFlash to program these, they must be allocated to page 0 */
.econst : > FLASHA PAGE = 0
.switch : > FLASHA PAGE = 0
/* Allocate IQ math areas: */
IQmath : > FLASHC PAGE = 0 /* Math Code */
IQmathTables : > ROM PAGE = 0, TYPE = NOLOAD /* Math Tables In ROM */
/* .reset is a standard section used by the compiler. It contains the */
/* the address of the start of _c_int00 for C Code. /*
/* When using the boot ROM this section and the CPU vector */
/* table is not needed. Thus the default type is set here to */
/* DSECT */
.reset : > RESET, PAGE = 0, TYPE = DSECT
vectors : > VECTORS PAGE = 0, TYPE = DSECT
}
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