DSP6713 EMIF问题

只看该作者 · 2014-6-15 17:44

想将Sun_Emif_Init()这个函数加载到CE3_SDRAM，然后在IRAM里运行，写了下面的两段程序，可为什么一运行就在Sun_Emif_Init()函数的第一行停了？想实现这个应该怎么写？
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SECTIONS
{
Emif_Init: {}    load > CE3_SDRAM,
run > IRAM,
RUN_START(_Emif_Init_runstart),
LOAD_START(_Emif_Init_loadstart),
LOAD_END(_Emif_Init_loadend)
.text: {} > IRAM
.switch:  {} > IRAM
.cinit: {} > IRAM
.pinit: {} > IRAM
.const: {} > IRAM
.stack    > IRAM
.sysmem    > IRAM
.csldata    > IRAM
.bss:    {} > IRAM
.far:    {} > IRAM
.data: {} > IRAM
.cio:    {} > IRAM
}
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extern unsigned int Emif_Init_runstart;
extern unsigned int Emif_Init_loadstart;
extern unsigned int Emif_Init_loadend;

#pragma CODE_SECTION(Sun_Emif_Init,"Emif_Init")
void Sun_Emif_Init()
{
//两种初始方式，一种如MyEMIFcfg0用宏语言，一种如MyEMIFcfg1直接赋值

EMIF_Config MyEMIFcfg1 = {
0x00003068,       /*  Global Control Reg. (GBLCTL) */
0x22920712,       /*  CE0 Space Control Reg. (CECTL0) setup 2, Wstrobe 10, Rstrobe 7,hold 2 */
0x513a8502,       /*  CE1 Space Control Reg. (CECTL1) */
0x10510191,       /*  CE2 Space Control Reg. (CECTL2) */
0x10510191,       /*  CE3 Space Control Reg. (CECTL3) */
0x6b227000,       /*  SDRAM Control Reg.(SDCTL) */
0x00000300,       /*  SDRAM Timing Reg.(SDTIM) */
0x00000128       /*  SDRAM Extended Reg.(SDEXT) */
};
EMIF_config(&MyEMIFcfg1);
}

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