CCS/TMS320F28379D: How to access and share the common variables between the two cores of TMS320F28379D?

Sindhu H

Part Number: TMS320F28379D

Tool/software: Code Composer Studio

Hello,

I have two programs on two cores of TMS320F28379D ( one program on each ). And i need to access the common variables between these two cores, hence the data communication is needed between two cores. Is GSRAM the concept to appply for this scenario? If yes, please help me find example programs regarding the same.

Thank you

over 6 years ago

0 Veena Kamath over 6 years ago

TI__Mastermind 32565 points

Hi,

You can use DATA_SECTION pragma to allocate gloabl variables to GSRAM.
You can find sample code in the driverlib dual core examples like example dma_ex1_shared_periph, ram_ex1_management etc. These examples demonstrate more that what you have asked for. But you could you that as a reference on how shared variable is used between cores.

Regards,
Veena

0 Sindhu H over 6 years ago in reply to Veena Kamath

Intellectual 450 points

Hello Veena,

Thank you. I found the program in RAM_MANAGEMENT.

I am facing the above error. Can you please help me out?

Thank you

Best Regards,

Sindhu H

0 Veena Kamath over 6 years ago in reply to Sindhu H

TI__Mastermind 32565 points

Hi Sindhu,

These symbols typically should come from the linker command file. You can refer to linker command file available in the same folder where you found that example (ram_ex1_isr_cpu1.cmd)

Regards,
Veena

0 Sindhu H over 6 years ago in reply to Veena Kamath

Intellectual 450 points

Hello Veena,

Thank you. The solution helped me a lot.

Best Regards,

Sindhu H

C2000™︎ microcontrollers

C2000 microcontrollers forum

CCS/TMS320F28379D: How to access and share the common variables between the two cores of TMS320F28379D?