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TMS320F28377D 双核应用，在CPU2中使用malloc函数动态分配内存进入ILLEGAL_ISR中断。

2019-12-21 分类：C2000™ 32位实时 MCU 阅读(431)

在程序中单步调试发现实在进入malloc函数后发生的ILLEGAL_ISR中断，查了很多帖子一般都是说将堆区分配的大一些还有的说是CMD 文件的问题，然而我在CMD文件中的".esysmem"将内存扩大，并增大Heap容量，或者换其他的内存块都没有起作用，但是在CPU1中使用malloc却没有问题，也对比了两个CPU的CMD 文件，没有太大差别，在官方给的双核历程中也是可以正常使用，弄了很久现在想不到其它办法，大家看看是什么原因? 

下面是两个CPU的 CMD文件，以及在CPU2中出现问题的代码。

F2837xD_cpu1.cmd

MEMORY
{
PAGE 0 : /* Program Memory */
/* Memory (RAM/FLASH) blocks can be moved to PAGE1 for data allocation */
/* BEGIN is used for the "boot to Flash" bootloader mode */

BEGIN : origin = 0x080000, length = 0x000002
RAMM0 : origin = 0x000122, length = 0x0002DE
RAMD0 : origin = 0x00B000, length = 0x000800
RAMLS0 : origin = 0x008000, length = 0x001000
RAMLS1 : origin = 0x009000, length = 0x000800
RAMLS2 : origin = 0x009800, length = 0x000800
RAMLS3 : origin = 0x00A000, length = 0x000800
RAMGS0 : origin = 0x00C000, length = 0x001000
RAMGS1 : origin = 0x00D000, length = 0x001000
RESET : origin = 0x3FFFC0, length = 0x000002

/* Flash sectors */
FLASHA : origin = 0x080002, length = 0x001FFE /* on-chip Flash */
FLASHB : origin = 0x082000, length = 0x002000 /* on-chip Flash */
FLASHC : origin = 0x084000, length = 0x002000 /* on-chip Flash */
FLASHD : origin = 0x086000, length = 0x002000 /* on-chip Flash */
FLASHE : origin = 0x088000, length = 0x008000 /* on-chip Flash */
FLASHF : origin = 0x090000, length = 0x008000 /* on-chip Flash */
FLASHG : origin = 0x098000, length = 0x008000 /* on-chip Flash */
FLASHH : origin = 0x0A0000, length = 0x008000 /* on-chip Flash */
FLASHI : origin = 0x0A8000, length = 0x008000 /* on-chip Flash */
FLASHJ : origin = 0x0B0000, length = 0x008000 /* on-chip Flash */
FLASHK : origin = 0x0B8000, length = 0x002000 /* on-chip Flash */
FLASHL : origin = 0x0BA000, length = 0x002000 /* on-chip Flash */
FLASHM : origin = 0x0BC000, length = 0x002000 /* on-chip Flash */
FLASHN : origin = 0x0BE000, length = 0x001960 /* on-chip Flash */
FPUTABLES : origin = 0x0BF960, length = 0x0006A0 /* FPU tables*/

PAGE 1 : /* Data Memory */
/* Memory (RAM/FLASH) blocks can be moved to PAGE0 for program allocation */

BOOT_RSVD : origin = 0x000002, length = 0x000120 /* Part of M0, BOOT rom will use this for stack */
RAMM1 : origin = 0x000400, length = 0x000400 /* on-chip RAM block M1 */
RAMD1 : origin = 0x00B800, length = 0x000800

RAMLS4 : origin = 0x00A800, length = 0x000800

RAMGS2 : origin = 0x00E000, length = 0x006000
RAMGS8 : origin = 0x014000, length = 0x001000
RAMGS9 : origin = 0x015000, length = 0x001000
RAMGS11 : origin = 0x016000, length = 0x004000
RAMGS14 : origin = 0x01A000, length = 0x001000
RAMGS15 : origin = 0x01B000, length = 0x001000

CPU2TOCPU1RAM : origin = 0x03F800, length = 0x000400
CPU1TOCPU2RAM : origin = 0x03FC00, length = 0x000400
}

SECTIONS
{
/* Allocate program areas: */
.cinit : > FLASHB PAGE = 0, ALIGN(4)
.pinit : > FLASHB, PAGE = 0, ALIGN(4)
.text : >> FLASHB | FLASHC | FLASHD | FLASHE PAGE = 0, ALIGN(4)
codestart : > BEGIN PAGE = 0, ALIGN(4)
ramfuncs : LOAD = FLASHD,
RUN = RAMLS0,
LOAD_START(_RamfuncsLoadStart),
LOAD_SIZE(_RamfuncsLoadSize),
LOAD_END(_RamfuncsLoadEnd),
RUN_START(_RamfuncsRunStart),
RUN_SIZE(_RamfuncsRunSize),
RUN_END(_RamfuncsRunEnd),
PAGE = 0, ALIGN(4)

/* Allocate uninitalized data sections: */
.stack : > RAMM1 PAGE = 1
.ebss : > RAMGS2 PAGE = 1
.esysmem : > RAMLS4 PAGE = 1

/* Initalized sections go in Flash */
.econst : >> FLASHF | FLASHG | FLASHH PAGE = 0, ALIGN(4)
.switch : > FLASHB PAGE = 0, ALIGN(4)

.reset : > RESET, PAGE = 0, TYPE = DSECT /* not used, */

Filter_RegsFile : > RAMGS2, PAGE = 1

FPUmathTables : > FPUTABLES, PAGE = 0

SHARERAMGS0 : > RAMGS14, PAGE = 1
SHARERAMGS1 : > RAMGS15, PAGE = 1

#ifdef __TI_COMPILER_VERSION
#if __TI_COMPILER_VERSION >= 15009000
.TI.ramfunc : {} LOAD = FLASHD,
RUN = RAMLS0,
LOAD_START(_RamfuncsLoadStart),
LOAD_SIZE(_RamfuncsLoadSize),
LOAD_END(_RamfuncsLoadEnd),
RUN_START(_RamfuncsRunStart),
RUN_SIZE(_RamfuncsRunSize),
RUN_END(_RamfuncsRunEnd),
PAGE = 0, ALIGN(4)
#endif
#endif
/* The following section definitions are required when using the IPC API Drivers */ GROUP : > CPU1TOCPU2RAM, PAGE = 1
{
PUTBUFFER PUTWRITEIDX GETREADIDX }
GROUP : > CPU2TOCPU1RAM, PAGE = 1
{
GETBUFFER : TYPE = DSECT
GETWRITEIDX : TYPE = DSECT
PUTREADIDX : TYPE = DSECT
}

}

/*
//===========================================================================
// End of file.
//===========================================================================
*/

F2837xD_cpu2.cmd

MEMORY
{
PAGE 0 :
/* BEGIN is used for the "boot to SARAM" bootloader mode */

BEGIN : origin = 0x080000, length = 0x000002
RAMM0 : origin = 0x000080, length = 0x000380
RAMD0 : origin = 0x00B000, length = 0x000800
RAMLS0_1_2 : origin = 0x008000, length = 0x001800
/*
RAMLS0 : origin = 0x008000, length = 0x000800
RAMLS1 : origin = 0x008800, length = 0x000800
RAMLS2 : origin = 0x009000, length = 0x000800
*/
RESET : origin = 0x3FFFC0, length = 0x000002

/* Flash sectors */
FLASHA : origin = 0x080002, length = 0x001FFE /* on-chip Flash */
FLASHB : origin = 0x082000, length = 0x002000 /* on-chip Flash */
FLASHC : origin = 0x084000, length = 0x002000 /* on-chip Flash */
FLASHD : origin = 0x086000, length = 0x002000 /* on-chip Flash */
FLASHE : origin = 0x088000, length = 0x028000 /* on-chip Flash */
FLASHJ : origin = 0x0B0000, length = 0x008000 /* on-chip Flash */
FLASHK : origin = 0x0B8000, length = 0x002000 /* on-chip Flash */
FLASHL : origin = 0x0BA000, length = 0x002000 /* on-chip Flash */
FLASHM : origin = 0x0BC000, length = 0x002000 /* on-chip Flash */
FLASHN : origin = 0x0BE000, length = 0x001960 /* on-chip Flash */
FPUTABLES : origin = 0x0BF960, length = 0x0006A0 /* FPU tables*/

PAGE 1 :

BOOT_RSVD : origin = 0x000002, length = 0x00007E /* Part of M0, BOOT rom will use this for stack */
RAMM1 : origin = 0x000400, length = 0x000400 /* on-chip RAM block M1 */
RAMD1 : origin = 0x00B800, length = 0x000800

RAMLS3 : origin = 0x009800, length = 0x000800
RAMLS4 : origin = 0x00A000, length = 0x000800
RAMLS5 : origin = 0x00A800, length = 0x000800

RAMGS11 : origin = 0x016000, length = 0x004000
RAMGS14 : origin = 0x01A000, length = 0x001000
RAMGS15 : origin = 0x01B000, length = 0x001000

CPU2TOCPU1RAM : origin = 0x03F800, length = 0x000400
CPU1TOCPU2RAM : origin = 0x03FC00, length = 0x000400

}

SECTIONS
{
/* Allocate program areas: */
.cinit : > FLASHB PAGE = 0, ALIGN(4)
.pinit : > FLASHB PAGE = 0, ALIGN(4)
.text : > FLASHE | FLASHJ PAGE = 0, ALIGN(4)
codestart : > BEGIN PAGE = 0, ALIGN(4)
ramfuncs : LOAD = FLASHD,
RUN = RAMLS0_1_2,
LOAD_START(_RamfuncsLoadStart),
LOAD_SIZE(_RamfuncsLoadSize),
LOAD_END(_RamfuncsLoadEnd),
RUN_START(_RamfuncsRunStart),
RUN_SIZE(_RamfuncsRunSize),
RUN_END(_RamfuncsRunEnd),
PAGE = 0, ALIGN(4)

/* Allocate uninitalized data sections: */
.stack : > RAMD1 PAGE = 1
.ebss : > RAMGS11 PAGE = 1
.esysmem : > RAMLS4 PAGE = 1

/* Initalized sections go in Flash */
.econst : > FLASHM PAGE = 0, ALIGN(4)
.switch : > FLASHB PAGE = 0, ALIGN(4)
.reset : > RESET, PAGE = 0, TYPE = DSECT /* not used, */

FPUmathTables : > FPUTABLES, PAGE = 0

firldb : > RAMLS3 PAGE = 1
firfilt : > RAMLS3 PAGE = 1
coefffilt : > RAMLS3 PAGE = 1

SHARERAMGS0 : > RAMGS14, PAGE = 1
SHARERAMGS1 : > RAMGS15, PAGE = 1

#ifdef __TI_COMPILER_VERSION
#if __TI_COMPILER_VERSION >= 15009000
.TI.ramfunc : {} LOAD = FLASHD,
RUN = RAMLS0_1_2,
LOAD_START(_RamfuncsLoadStart),
LOAD_SIZE(_RamfuncsLoadSize),
LOAD_END(_RamfuncsLoadEnd),
RUN_START(_RamfuncsRunStart),
RUN_SIZE(_RamfuncsRunSize),
RUN_END(_RamfuncsRunEnd),
PAGE = 0, ALIGN(4)
#endif
#endif

/* The following section definitions are required when using the IPC API Drivers */
GROUP : > CPU2TOCPU1RAM, PAGE = 1
{
PUTBUFFER
PUTWRITEIDX
GETREADIDX
}

GROUP : > CPU1TOCPU2RAM, PAGE = 1
{
GETBUFFER : TYPE = DSECT
GETWRITEIDX : TYPE = DSECT
PUTREADIDX : TYPE = DSECT
}

}

/*
//===========================================================================
// End of file.
//===========================================================================
*/

 

CPU2 出现问题的代码段：

char *tempbuf;
tempbuf = (char *)malloc(100);
free(tempbuf);

 

Green Deng：

你的程序应该是运行在flash中的，有没有可能是其他原因，比如程序中调用delay_us函数，但是没有加memcopy函数。

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