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将程序烧写至外部FLASH后,发现并不能启动起来,链接JTAG后检查发现程序一直在boot28.inc中循环,并没有跳至main函数,这是什么原因
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你好,从外部flash启动的话相应的启动地址等等也需要更改,不知道你对程序有做过相应修改吗?
你好,你是通过哪个外设外扩flash的?对应的boot mode pin有没有修改?以及,cmd文件具体是如何修改的?
我是直接用zone7,外扩的flash,从外部flash启动应该不需要修改pin脚吧?
MEMORY
{
PAGE 0: /* Program Memory */
/* Memory (RAM/FLASH/OTP) blocks can be moved to PAGE1 for data allocation */
ZONE0 : origin = 0x002000, length = 0x002000 /* XINTF zone 0 */
ZONE1 : origin = 0x004000, length = 0x002000 /* XINTF zone 1 */
// RAML0 : origin = 0x008000, length = 0x001000 /* on-chip RAM block L0 */
ZONE2 : origin = 0x080000, length = 0x080000 /* XINTF zone 2 */
ZONE6 : origin = 0x100000, length = 0x001000 /* XINTF zone 6 allocated for code */
OTP : origin = 0x3D7800, length = 0x000800 /* on-chip OTP */
CSM_RSVD : origin = 0x3F7F80, length = 0x000076 /* Part of FLASHA. Program with all 0x0000 when CSM is in use. */
BEGIN : origin = 0x3F8000, length = 0x000002
// BEGIN : origin = 0x3F8000, 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 */
RAMH0 : origin = 0x3F8002, length = 0x001FFD /* on-chip RAM block H0 */
// RAML1 : origin = 0x009000, length = 0x001000 /* on-chip RAM block L1 */
ZONE7 : origin = 0x3FC002, length = 0x001FFE /* XINTF zone 7 available if MP/MCn=1 */
//ZONE7 : origin = 0x3FC000, length = 0x001000 /* XINTF zone 7 available if MP/MCn=1 */
ROM : origin = 0x3FF000, length = 0x000FC0 /* Boot ROM available if MP/MCn=0 */
RESET : origin = 0x3FFFC0, length = 0x000002 /* part of boot ROM (MP/MCn=0) or XINTF zone 7 (MP/MCn=1) */
/*RESET : origin = 0x3E9908, length = 0x000002 */ /* part of boot ROM (MP/MCn=0) or XINTF zone 7 (MP/MCn=1) */
VECTORS : origin = 0x3FFFC2, length = 0x00003E /* part of boot ROM (MP/MCn=0) or XINTF zone 7 (MP/MCn=1) */
/* BEGIN : origin = 0x3FD000, length = 0x000002 */
PAGE 1 : /* Data Memory */
/* Memory (RAM/FLASH/OTP) blocks can be moved to PAGE0 for program allocation */
/* Registers remain on PAGE1 */
/* ZONE7 : origin = 0x3FD000, length = 0x001000 */ /* XINTF zone 7 available if MP/MCn=1 */
RAMM01 : origin = 0x000000, length = 0x000800 /* on-chip RAM block M0 */
/* RAMM1 : origin = 0x000400, length = 0x000400 */ /* on-chip RAM block M1 */
RAML1 : origin = 0x008000, length = 0x002000 /* on-chip RAM block L1 */
ZONE6 : origin = 0x101000, length = 0x001000 /* XINTF zone 6 allocated for data */
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 : > ZONE7 PAGE = 0
.pinit : > ZONE7, PAGE = 0
.text : > ZONE7 PAGE = 0
codestart : > BEGIN PAGE = 0
reset_vec : > RESET PAGE = 0
// ramfuncs : > RAML1 PAGE = 0
ramfuncs : LOAD = ZONE7,
RUN = RAMH0,
LOAD_START(_RamfuncsLoadStart),
LOAD_END(_RamfuncsLoadEnd),
RUN_START(_RamfuncsRunStart),
PAGE = 0
/* csmpasswds : > CSM_PWL PAGE = 0 */
ramdata : > RAMM01 PAGE = 1
/* Allocate uninitalized data sections: */
.stack : > RAMM01 PAGE = 1
// .ebss : > RAMM01 PAGE = 1
.ebss : > RAML1 PAGE = 1
.esysmem : > RAMM01 PAGE = 1
/* Initalized sections go in Flash */
.econst : > RAMM01, PAGE = 1
.switch : > RAMM01, PAGE = 1
/* Allocate IQ math areas: */
IQmath : > ZONE7 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 booting from XINTF this is a pointer to the c_init routine */
/* For this example we will go through codestart first, in order to*/
/* disable the watchdog before the init. Thus this is DSECT */
.reset : > RESET, PAGE = 0, TYPE = DSECT
vectors : > VECTORS PAGE = 0, TYPE = DSECT
}
目前看不是程序没跑起来 而是进不去中断,在主程序内的程序都是正常运行的,但是中断的程序就是进不去,但若是连上仿真器,全速运行,又是没问题的。
这个是哪不对了
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