6678 bios工程修改.stack，sysmemheap位置

请问具体做了哪些改动？
参考以下配置代码看一下:
** Create a Heap.
*/
var HeapMem = xdc.useModule('ti.sysbios.heaps.HeapMem');
var heapMemParams = new HeapMem.Params();
heapMemParams.size = 0x300000;
heapMemParams.sectionName = "systemHeap";
Program.global.heap0 = HeapMem.create(heapMemParams);


/* This is the default memory heap. */
Memory.defaultHeapInstance = Program.global.heap0;
Program.sectMap["systemHeap"] = "DDR3";