TMS320F28379D: Program on CPU2 starts running immediately on load versus going to halted state

Mark Feller

Expert 1220 points

Part Number: TMS320F28379D

I am trying to create a new project using CPU1 and CPU2.

Both projects were copied from another project that only used CPU1.

Copy original project --> CPU1 project

Copy original project --> CPU2 project

Basically I am modifying the project so that the CPU1 project just starts CPU2, and the original project would run on CPU2.

I start the debug session from CPU1.

I connect to CPU2.

I then load the output from the CPU2 project, and it immediately moves to a "Running" state.

Any suggestions on what may not be configured correctly in this case?

over 2 years ago

0 Mark Feller over 2 years ago

Expert 1220 points

I moved one of the CPU2 RAM sections from GS RAM to LS RAM, and it seems to have corrected the issue. I guess that leads to a new question: I will need to use GS RAM. What is the issue with using GS RAM?

Also, in the case, I am executing entirely out of RAM on both CPU cores. I'm not sure if that makes a difference.

0 Santosh Jha over 2 years ago in reply to Mark Feller

TI__Guru 50611 points

Mark,

GSRAM is shared with both cores.

Which section you needed to modify to make it functional?

Regards, Santosh

+1 Veena Kamath over 2 years ago in reply to Santosh Jha

TI__Mastermind 32635 points

In addition to what Santosh replied, CPU1 needs to configure the ownership of GSRAM to CPU2 before CPU2 starts using the GSRAM.

Regards,

Veena

0 Mark Feller over 2 years ago in reply to Veena Kamath

Expert 1220 points

I think this was it. I knew about assigning GSRAM, but I missed initializing one of the GSRAM sections I am using.

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TMS320F28379D: Program on CPU2 starts running immediately on load versus going to halted state