TMS320F28069M: SYS/BIOS task stack runtime allocation

Daniel Rush

Part Number: TMS320F28069M

So I have an application using SYS/BIOS which is seemingly running out of stack space the behavior is: I allocate task space, and add some new variables to main(), debug the program, the program goes through cinit and jumps to 0x3FF4A(WAIT boot-mode), If I reduce the size of one of the task stacks, it will run(and sometimes spit out a task stack overflow) I still have unallocated RAM according to the .map file, but I seem to be overflowing in some way. Is there a way that I can: A) fix this, or B) tell the linker to place things better so that I get an error if this error will happen after I load the program?

Thanks!

over 4 years ago

0 ToddMullanix over 4 years ago

TI__Guru* 96960 points

Hi Daniel,

Can you open the disassembly window after you load the .out file. Type is "Error_raise" and the auto-fill should bring up the full name of the Error raise function (it will be something like xdc_runtime_Error_raise_*... I'm traveling and have limited access to work stuff). Once the function is shown in the disassembly window, put a breakpoint on it. Run the application. When the stack overflow happens the breakpoint should be hit. Open ROV to see which task stack is overflowing. How are you increasing the size of that stack?

Todd

0 ToddMullanix over 4 years ago in reply to ToddMullanix

TI__Guru* 96960 points

Hi Daniel,

Did this get resolved?

Todd

0 Daniel Rush over 4 years ago in reply to ToddMullanix

Intellectual 585 points

Hey Todd,

Haven't had a chance to try breaking on the error_raise. I was able to progress by just reducing the stacks of all the other tasks, but I still have a few KB of RAM leftover even when I'm getting the stack overflow.