Problem with create a large size heapMem

Killo Lu

Other Parts Discussed in Thread: SYSBIOS

Hi,

I want to create a large heap (using SYS/BOIS, vision Mid), and I do the following 2 steps

(1) Change the .cfg setting

var Memory = xdc.useModule('xdc.runtime.Memory');
var HeapMem = xdc.useModule('ti.sysbios.heaps.HeapMem');
var heapMemParams = new HeapMem.Params();
heapMemParams.size = 0x2000000;
heapMemParams.sectionName = "systemHeap";
Program.global.heap0 = HeapMem.create(heapMemParams);
Memory.defaultHeapInstance = Program.global.heap0;

(2) allocate memory in c code

Ptr bufs[1];

IHeap_Handle heap = HeapMem_Handle_upCast(heap0);
bufs[0] = Memory_alloc(heap, SURR_VIEW_SIZE, 0, NULL);
Memory_free(heap, bufs[0], SURR_VIEW_SIZE);

When I run this program in debug mode, the error message is "0x86C01C3B out of memory"

What should I do ?

Besides, I have another question.

When I read SYS/BIOS user guide, section 6.8, it says HeapBuf is faster than HeapMem.

So if I just need a 0x2000000 memory, the better way is to use HeapBuf?

I follow the example in the user's guide, but never success.

Can you provide an example for this case?

Thank you very much!

Regards,

Killo

over 12 years ago

0 ToddMullanix over 12 years ago

TI__Guru* 96960 points

Hi Killo,

What device and codegen are you on? The issue you are seeing might be related to this thread: http://e2e.ti.com/support/development_tools/compiler/f/343/p/253348/886334.aspx#886334.

Todd

0 Killo Lu over 12 years ago in reply to ToddMullanix

Prodigy 150 points

Hi Todd,

Thank you for reply.

My device is vision Mid (EVM8168), and use CCS5 , SYS/BIOS, XDC 3.24. 3.33

But my question seems different from the problem in the link. The memory I use is 32MB, not so big like 256 MB.

Let me rephrase the problem

============================

I want to create a 32MB heap, so I add the code in .cfg

<BIOS_AVSDK_dsp.cfg>

var HeapMem = xdc.useModule('ti.sysbios.heaps.HeapMem');

var heapMemParams = new HeapMem.Params();

heapMemParams.size = 0x2000000; // 32MB

Program.global.heap0 = HeapMem.create(heapMemParams);

Then compile, and error appears :

"./configPkg/linker.cmd", line 201: error #10099-D: program will not fit into available memory. run placement with alignment fails for section ".far"
size 0x233959f . Available memory ranges:
CODE_CORE_DSP size: 0x1000000 unused: 0xcc6aac max hole: 0xcc6a68

I guess the error caused by the memory is too small(only 0x1000000 and I want 0x2000000 ) ?

Then I try to modify the memory size in <mem_segment_definition.xs>

<mem_segment_definition.xs>

memory[23] = ["CODE_CORE_DSP",
{
name: "CODE_CORE_DSP",
base: 0x85C00000,
len: 0x01000000, // change to len: 0x02000000,
space: "code"
}];

but it doesn't work....

Thank you again!

Regards

0 ToddMullanix over 12 years ago in reply to Killo Lu

TI__Guru* 96960 points

Sorry, this thread was bounced around internally and fell through the cracks. Did your issue get resolved?

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Problem with create a large size heapMem