RTOS/TMDXLCDK6748: Internal exception: IERR=0x1 Instruction fetch exception ti.sysbios.family.c64p.Exception: line 256

Hi,

Please share which SDK version are yo using?
Under what circumstances did you get this error? Which SDK driver were you utilizing?
Best Regards,
Yordan

Sorry for mention that, Yordan Kovachev. I am using Process SDK RTOS OMAPL138 LCDK 4.00.00.04 on my custom C6746 board.

Recently I add system stack size in my app.cfg

The problem occur more often. Even when i start my app application.

I guess this is caused by memory issue. this is piece of my app.cfg

/*
** Create a Heap. 
*/
var HeapMem = xdc.useModule('ti.sysbios.heaps.HeapMem');
var heapMemParams = new HeapMem.Params();
heapMemParams.size = 0x20000;
heapMemParams.sectionName = "systemHeap";
Program.global.heap0 = HeapMem.create(heapMemParams);

var heapMem0Params = new HeapMem.Params();
heapMem0Params.instance.name = "MyHeap";
heapMem0Params.size = 91392;
heapMem0Params.align = 8;
heapMem0Params.sectionName = "MyHeap";
Program.global.MyHeap = HeapMem.create(heapMem0Params);

var heapMem1Params = new HeapMem.Params();
heapMem1Params.instance.name = "TcpHeap";
heapMem1Params.size = 15232;
heapMem1Params.sectionName = "TcpHeap";
Program.global.TcpHeap = HeapMem.create(heapMem1Params);


/* This is the default memory heap. */
Memory.defaultHeapInstance  =   Program.global.heap0;
Program.sectMap["sharedL2"] = "DDR"; 
Program.sectMap["systemHeap"] = "DDR";
Program.sectMap["MyHeap"] = "DDR";
Program.sectMap["TcpHeap"] = "DDR";
Program.sectMap[".sysmem"]  = "DDR";
Program.sectMap[".args"]    = "DDR";
Program.sectMap[".cio"]     = "DDR";
Program.sectMap[".far"] 	= 	"DDR";
Program.sectMap[".rodata"] 	= 	"DDR";
Program.sectMap[".neardata"] 	= 	"DDR";
Program.sectMap[".cppi"] 	= 	"DDR";
Program.sectMap[".init_array"] 	= 	"DDR";
Program.sectMap[".qmss"] 	= 	"DDR";
Program.sectMap[".cinit"] 	= 	"DDR";
Program.sectMap[".bss"]		=	"DDR";
Program.sectMap[".const"]	=	"DDR";
Program.sectMap[".text"]	=	"DDR";
Program.sectMap[".code"]	=	"DDR";
Program.sectMap[".switch"]	=	"DDR";
Program.sectMap[".data"]	=	"DDR";
Program.sectMap[".fardata"] = 	"DDR";
Program.sectMap[".args"] 	= 	"DDR";
Program.sectMap[".cio"] 	= 	"DDR";
Program.sectMap[".vecs"] 	= 	"DDR";

Program.sectMap["emacComm"]          = "DDR"


Program.sectMap[".far:taskStackSection"] = "DDR";
Program.sectMap[".stack"]	=	"DDR";
Program.sectMap[".far:IMAGEDATA"] = {loadSegment: "DDR", loadAlign: 8};
Program.sectMap[".far:NDK_OBJMEM"] = {loadSegment: "DDR", loadAlign: 8};
Program.sectMap[".far:NDK_PACKETMEM"] = {loadSegment: "DDR", loadAlign: 128};
Program.stack = 0x4000;

I am not familar with low level memory issue.

Can someone help me?