各位大神你们好！
小弟新手！购买了一个TI的launchpad开发板练手，在使用RAM cmd（28027_RAM_lnk.cmd）文件的时候成功将我的程序下载到了RAM中，上电可以工作，LED灯闪烁；
在向Flash中下载程序：我首先将cmd文件换成下载到Flash的那个(F28027.cmd),我的主程序如下：
#include "include/DSP28x_Project.h"
#define TOFLASH
#ifdef TOFLASH
extern void MemCopy(Uint16 *SourceAddr, Uint16* SourceEndAddr, Uint16* DestAddr);
extern Uint16 RamfuncsLoadStart;
extern Uint16 RamfuncsLoadEnd;
extern Uint16 RamfuncsRunStart;
#endif
void delay(Uint32 m)
{
Uint32 i;
for(i=0;i<m;i++)
;
}
int main(void)
{
InitSysCtrl();
InitGpio();
DINT;
InitPieCtrl();
InitCpuTimers();
ConfigCpuTimer(&CpuTimer0,60,500000);
IER = 0x0000;
IFR = 0x0000;
InitPieVectTable();
#ifdef TOFLASH
MemCopy(&RamfuncsLoadStart, &RamfuncsLoadEnd, &RamfuncsRunStart);
InitFlash();
#endif
for(;;)
{
GpioDataRegs.GPATOGGLE.bit.GPIO0 = 1;
GpioDataRegs.GPATOGGLE.bit.GPIO2 = 1;
DELAY_US(100000L);
GpioDataRegs.GPATOGGLE.bit.GPIO0 = 0;
GpioDataRegs.GPATOGGLE.bit.GPIO1 = 1;
GpioDataRegs.GPATOGGLE.bit.GPIO2 = 0;
GpioDataRegs.GPATOGGLE.bit.GPIO3 = 1;
DELAY_US(500000L);
}
}
我的CMD（F28027.cmd）如下。PS：这个文件我没有改动；
MEMORY
{
PAGE 0: /* Program Memory */
/* Memory (RAM/FLASH/OTP) blocks can be moved to PAGE1 for data allocation */
PRAML0 : origin = 0x008000, length = 0x000800 /* on-chip RAM block L0 */
OTP : origin = 0x3D7800, length = 0x000400 /* on-chip OTP */
FLASHD : origin = 0x3F0000, length = 0x002000 /* on-chip FLASH */
FLASHC : origin = 0x3F2000, length = 0x002000 /* on-chip FLASH */
FLASHA : origin = 0x3F6000, length = 0x001F80 /* 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_P0 : origin = 0x3F7FF8, length = 0x000008 /* Part of FLASHA. CSM password locations in FLASHA */
IQTABLES : origin = 0x3FE000, length = 0x000B50 /* IQ Math Tables in Boot ROM */
IQTABLES2 : origin = 0x3FEB50, length = 0x00008C /* IQ Math Tables in Boot ROM */
IQTABLES3 : origin = 0x3FEBDC, length = 0x0000AA /* IQ Math Tables in Boot ROM */
ROM : origin = 0x3FF27C, length = 0x000D44 /* 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 */
BOOT_RSVD : origin = 0x000000, length = 0x000050 /* Part of M0, BOOT rom will use this for stack */
RAMM0 : origin = 0x000050, length = 0x0003B0 /* on-chip RAM block M0 */
RAMM1 : origin = 0x000400, length = 0x000400 /* on-chip RAM block M1 */
DRAML0 : origin = 0x008800, length = 0x000800 /* on-chip RAM block L0 */
FLASHB : origin = 0x3F4000, length = 0x002000 /* on-chip FLASH */
}
/* 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 | FLASHC | FLASHD, PAGE = 0
.pinit : > FLASHA | FLASHC | FLASHD, PAGE = 0
.text : >> FLASHA | FLASHC | FLASHD, PAGE = 0
codestart : > BEGIN PAGE = 0
ramfuncs : LOAD = FLASHA,
RUN = PRAML0,
LOAD_START(_RamfuncsLoadStart),
LOAD_END(_RamfuncsLoadEnd),
// LOAD_SIZE(_RamfuncsLoadSize),
RUN_START(_RamfuncsRunStart),
PAGE = 0
csmpasswds : > CSM_PWL_P0 PAGE = 0
csm_rsvd : > CSM_RSVD PAGE = 0
/* Allocate uninitalized data sections: */
.stack : > RAMM0 PAGE = 1
.ebss : > DRAML0 PAGE = 1
.esysmem : > DRAML0 PAGE = 1
.sysmem : > DRAML0 PAGE = 1
.cio : >> RAMM0 | RAMM1 | DRAML0 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 : > FLASHA PAGE = 0 /* Math Code */
IQmathTables : > IQTABLES, PAGE = 0, TYPE = NOLOAD
我在debug的时候没有报错，但是在向芯片中下载的时候报了错误：
C28xx: File Loader: Data verification failed at address 0x003F6582 Please verify target memory and memory map.
C28xx: GEL: File: E:\CCS_Workspace_v5_5\DSP_LED\Debug\DSP_LED.out: a data verification error occurred, file load failed.
PS：为了防止自己的板子被烧毁，我做了交叉实验，使用同学的板子，下载也不成功；我在网上下载了前辈们下载到flash中的例程，我的板子没有问题；
路过的大神请助我一臂之力，小弟不胜感激！
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