本帖最后由 lwjzxy 于 2018-5-21 20:19 编辑
外扩了一片RAM，CMD文件做了相应修改：
ZONE7B : origin = 0x200000, length = 0x100000 /* XINTF zone 7 - data space */
ZONE7DATA : > ZONE7B, PAGE = 1
定义了一个数组来测试：
unsigned int xyz[1000];
#pragma DATA_SECTION(xyz,"ZONE7DATA")
但程序即使没对RAM进行操作，运行中CPU不停跑飞，去掉上述两行就正常，查.MAP文件，看到xyz确实
分配到了0x200000。而且在该处写入读出数据都正确，证明硬件没问题。
求高手解答！
CMD 文件如下：
MEMORY
{
PAGE 0: /* Program Memory */
/* Memory (RAM/FLASH/OTP) blocks can be moved to PAGE1 for data allocation */
ZONE0 : origin = 0x004000, length = 0x001000 /* XINTF zone 0 */
RAML0 : origin = 0x008000, length = 0x001000 /* on-chip RAM block L0 */// 此段保留给 ramfuncs : LOAD = FLASHD, RUN = RAML0, 2018.5.14
// RAML1 : origin = 0x009000, length = 0x001000 /* on-chip RAM block L1 */ //移到PAGE1，更改为RAML0 2018.5.14
// RAML2 : origin = 0x00A000, length = 0x001000 /* on-chip RAM block L2 */
// RAML3 : origin = 0x00B000, length = 0x001000 /* on-chip RAM block L3 */
ZONE6A : origin = 0x100000, length = 0x00FC00 /* XINTF zone 6 - program space*/
// ZONE7 : origin = 0x200000, length = 0x100000 /* XINTF zone 7 */
FLASHH : origin = 0x300000, length = 0x008000 /* on-chip FLASH */
FLASHG : origin = 0x308000, length = 0x008000 /* on-chip FLASH */
FLASHF : origin = 0x310000, length = 0x008000 /* on-chip FLASH */
FLASHE : origin = 0x318000, length = 0x008000 /* on-chip FLASH */
FLASHD : origin = 0x320000, length = 0x008000 /* on-chip FLASH */
FLASHC : origin = 0x328000, length = 0x008000 /* on-chip FLASH */
FLASHA : origin = 0x338000, length = 0x007F80 /* on-chip FLASH */
CSM_RSVD : origin = 0x33FF80, length = 0x000076 /* Part of FLASHA. Program with all 0x0000 when CSM is in use. */
BEGIN : origin = 0x33FFF6, length = 0x000002 /* Part of FLASHA. Used for "boot to Flash" bootloader mode. */
CSM_PWL : origin = 0x33FFF8, length = 0x000008 /* Part of FLASHA. CSM password locations in FLASHA */
OTP : origin = 0x380400, length = 0x000400 /* on-chip OTP */
ADC_CAL : origin = 0x380080, length = 0x000009 /* ADC_cal function in Reserved memory */
IQTABLES : origin = 0x3FE000, length = 0x000b50 /* IQ Math Tables in Boot ROM */
IQTABLES2 : origin = 0x3FEB50, length = 0x00008c /* IQ Math Tables in Boot ROM */
FPUTABLES : origin = 0x3FEBDC, length = 0x0006A0 /* FPU 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 */
//将statck 移到RAML1，空间变大到1000H，原来在 RAMM1，大小 400H
//将几个段合并到RAML1，空间增大，更改为RAML0 2018.5.14
RAML1 : origin = 0x009000, length = 0x001000 /* on-chip RAM block L1 */
RAML2 : origin = 0x00A000, length = 0x006000 /* on-chip RAM block L2 */// 从PAGE0移过来更，改为RAML2 2018.5.14
// RAML3 : origin = 0x00B000, length = 0x001000 /* on-chip RAM block L3 */
// RAML4 : origin = 0x00C000, length = 0x001000 /* on-chip RAM block L1 */
// RAML5 : origin = 0x00D000, length = 0x001000 /* on-chip RAM block L1 */
// RAML6 : origin = 0x00E000, length = 0x001000 /* on-chip RAM block L1 */
// RAML7 : origin = 0x00F000, length = 0x001000 /* on-chip RAM block L1 */
//将RAML4空间增大 其他空间起始地址后移 LWJ 2016.6.22
// RAML4 : origin = 0x00C000, length = 0x002000 /* on-chip RAM block L1 */
// RAML5 : origin = 0x00E000, length = 0x001000 /* on-chip RAM block L1 */
// RAML6 : origin = 0x00F000, length = 0x001000 /* on-chip RAM block L1 */
// RAML7 : origin = 0x010000, length = 0x000100 /* on-chip RAM block L1 */
ZONE6B : origin = 0x10FC00, length = 0x000400 /* XINTF zone 6 - data space */
ZONE7B : origin = 0x200000, length = 0x100000 /* XINTF zone 7 - data space */
FLASHB : origin = 0x330000, length = 0x008000 /* 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 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
/* Allocate uninitalized data sections: */
// .stack : > RAMM1 PAGE = 1
.stack : > RAML1 PAGE = 1//更改为RAML1 2018.5.14
//.ebss : > RAML4 PAGE = 1
.ebss : > RAML2 PAGE = 1//更改为RAML2 2018.5.14
.esysmem : > RAMM1 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 : > IQTABLES, PAGE = 0, TYPE = NOLOAD
IQmathTables2 : > IQTABLES2, PAGE = 0, TYPE = NOLOAD
FPUmathTables : > FPUTABLES, PAGE = 0, TYPE = NOLOAD
/* Allocate DMA-accessible RAM sections: */
// DMARAML4 : > RAML4, PAGE = 1//暂时不考虑此段， 2018.5.14
// DMARAML5 : > RAML5, PAGE = 1
// DMARAML6 : > RAML6, PAGE = 1
// DMARAML7 : > RAML7, PAGE = 1
/* Allocate 0x400 of XINTF Zone 6 to storing data */
ZONE6DATA : > ZONE6B, PAGE = 1
ZONE7DATA : > ZONE7B, PAGE = 1
/* .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
/* Allocate ADC_cal function (pre-programmed by factory into TI reserved memory) */
.adc_cal : load = ADC_CAL, PAGE = 0, TYPE = NOLOAD
}
/*
//===========================================================================
// End of file.
//===========================================================================
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