CCS/IWR6843: what is gtrack_alloc() and malloc()?

Victor D

Intellectual 390 points

Part Number: IWR6843

Tool/software: Code Composer Studio

Hello experts:

I want to replace gtrack_alloc() with malloc(), code listed as follows:

GtrackModuleInstance *inst = NULL;

/inst = (GtrackModuleInstance *)gtrack_alloc(1, sizeof(GtrackModuleInstance));
inst = (GtrackModuleInstance *)malloc(sizeof(GtrackModuleInstance));

//inst->bestScore = (float *)gtrack_alloc(inst->maxNumPoints, sizeof(float));
inst->bestScore = (float*)malloc(sizeof(float*)*1);

When I debug the code, when I debug to the last sentence, a prompt dialog box pops up: GtrackUnitTest.exe has triggered a breakpoint(GtrackUnitTest is my project name).

over 6 years ago

0 Keith Barkley over 6 years ago

Guru 42215 points

Are you including stdlib.h?

Do you really want to allocate space for a pointer-to-float or for a float?

0 Justin Curewitz over 6 years ago

TI__Mastermind 28055 points

HI,

What are you trying to achieve?

Regards,

Justin

0 Victor D over 6 years ago in reply to Justin Curewitz

Intellectual 390 points

One sentence in the source code (gtrack module of th 19th people counting lab ) is memory allocation. Because I don't know the use of gttack_alloc() function, I replace it with malloc() function in C language.

0 Victor D over 6 years ago in reply to Keith Barkley

Intellectual 390 points

Yes I hanve.

0 Justin Curewitz over 6 years ago in reply to Victor D

TI__Mastermind 28055 points

Hi,

Gtrack_alloc is defined as follows:

void *gtrack_alloc(unsigned int numElements, unsigned int sizeInBytes)
{
memoryBytesUsed += numElements*sizeInBytes;
return MemoryP_ctrlAlloc(numElements*sizeInBytes, 0);
}

MemoryP_ctrlAlloc comes from the osal driver in the mmWave SDK.

Regards,

Justin

0 Victor D over 6 years ago in reply to Justin Curewitz

Intellectual 390 points

Can you make an simple example to guide me how to use MemoryP_ctrlAlloc function?

In my example which files I should inclue?

Thank you!

0 Justin Curewitz over 6 years ago in reply to Victor D

TI__Mastermind 28055 points

Hi,

You can find the documentation in the mmWave SDK. Specifically, the OSAL documentation is here: file:///C:/ti/mmwave_sdk_03_02_00_04/packages/ti/drivers/osal/docs/doxygen/html/group___m_e_m_o_r_y_p___o_s_a_l___e_x_t_e_r_n_a_l___f_u_n_c_t_i_o_n.html

Regards,

Justin

0 Victor D over 6 years ago in reply to Justin Curewitz

Intellectual 390 points

I wanted to debug GTRACK unit test code in CCS, but it didn't work. So I rewrite GTRACK module code to C language in visual studio. The problem is that I don't know how to convert or use the gtack_alloc() function in the source code.

0 Justin Curewitz over 6 years ago in reply to Victor D

TI__Mastermind 28055 points

Hi,

In the makefile for gtrack, there is a "R4FFLAGS" with some arguments afterwards. Add "-g" which tells the compiler to compile for debug. Once you do this, you will be able to step in CCS after building using gmake.

Regards,

Justin

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CCS/IWR6843: what is gtrack_alloc() and malloc()?