RTOS/TDA2P-ACD: Unable to Access Variable Defined in IPU1_0 on DSP1

Abhay Sorte

Part Number: TDA2P-ACD

Tool/software: TI-RTOS

Hi Rishabh,

I have a related question to my previous thread.

Now that I can compile my file for DSP as well as IPU1_0 core, I have a variable declared as below in my file "vision_sdk/apps/src/rtos/config/chains_configuration.c",

#pragma DATA_SECTION(cfgPrms,".bss:extMemNonCache:linkStats");
#pragma DATA_ALIGN(cfgPrms, 128);
static ConfigObj cfgPrms = { 0 };

I have assigned values to this variable in my file and I am trying to access this variable on my alg_plugin running on DSP1 core. But in my plugin I get zero value for this variable.

Can you tell me how can I access this variable "cfgPrms" with updated values on DSP1 core.

Regards,

Abhay

over 6 years ago

0 Rishabh Garg over 6 years ago

TI__Guru 55685 points

Hi,

You should use IPC to communicate between different cores.

Regards,
Rishabh

0 Brijesh Jadav over 6 years ago in reply to Rishabh Garg

TI__Guru**** 478015 points

Abhay,

Can you check first in the map file if variable is allocated from this shared section for both the cores?

Rgds,
Brijesh

0 Abhay Sorte over 6 years ago in reply to Brijesh Jadav

Genius 4105 points

Hi Brijesh,

In map files I cannot find the variable. I clean build vision sdk but still the variable is not present in the map file of DSP1 and IPU1_0 cores.
What could be the issue here.

Regards,
Abhay

0 Brijesh Jadav over 6 years ago in reply to Abhay Sorte

TI__Guru**** 478015 points

Try removing static keyword.

Rgds,
Brijesh

0 Abhay Sorte over 6 years ago in reply to Brijesh Jadav

Genius 4105 points

Hi Brijesh,

It was indeed the issue of static keyword. I can now access the variable on DSP as well as IPU cores.
Thanks for your support.

Regards,
Abhay

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RTOS/TDA2P-ACD: Unable to Access Variable Defined in IPU1_0 on DSP1