LAUNCHXL-F28379D: _system_post_cinit() 0x3FE493 (an error occurred: failed to parse the previous frame FP)

For more details,

there are 3 yellow alerts on Stack Usage.

It says "Makes indirect calls".

Hi Jungwoo,

Have you tried increasing the stack size in the project properties? I'm going to see if someone else on the team has some suggestions as well.

Best,

Kevin

Hello Kevin,

I never tried to increase the stack size!

I will try and reply about it.

Thanks!!!

Sincerely,

Jungwoo

I did increased the stack size in the linker cmd.

I reached to SECTIONS and modified the .stack location with the bigger memory.(I combined the RAM sections. ex) RAMGS0_1_2 :origin = 0x00C000, length = 0x003000)

But the same error came out in debug window and the yellow alert in stack usage.

In the Stack Usage, it says

Jungwoo Hur said:

"Makes indirect calls"

and also 240 out of  240bytes.

Is it possible to modify the maximum Inclusive size(240bytes)?

I need 8bytes more

Do you have lot of variables on stack. You may want to put them in separate memory?

Hello Santosh

Yes, I just want the project run properly.

I would be happy if its possible.

Sincerely, Jungwoo

Will you be able to share your code? We can take a look? 

You may want to put the variables in separate memory in different memory section

Sure!

It's quite long project.

I did not see too many variables in stack. Was there any code stage where it was working?

Can you step through the code and narrow it down? May be comment some of the functions.

Hello, Santosh

main.cpp line 58:

PositionSensorAM5147 spi(16384, 0.0, NPP);

had a bug and I had fixed so I guess it worked at least line 58 in main.cpp

For more details about my code, comments are below.

This project is about bldc motor control.(Launchxl-f28379d + motor driver (Boostxl-DRV8323RS from TI) + encoder(AS5147P from AMS))

Summary of my code:

------------------------------------------------

1. Main function

Configuring mode and initializing parameters of Motor Driver(it communicates with SPI)(functions are located in DRVjw.h)

2. Timer ISR starts(infinite Loop)

SPI communication(receive Encoder angle value)+ADC(ADC command in timerISR which is located in main.cpp)(measure the current value from Motor Driver external pin) >

Calculation(foc.h) >

ePWM(modify the compare value of ePWM, commutate() function in foc.h) > back to ADC

--------------------------------------------------

3. CAN communication Interrupt

Command (Position, Velocity, Gain and Torque command) receive

4. Serial communication Interrupt

Command (Mode command) receive

-----------------------------------------------------

 Thanks for the notice that this is not a variable memory problem, I am searching for another problem... 

Sincerely,

Jungwoo

Hello, Santosh

Thank you for leading me to right direction!

I have to make my code simple and find what the problem is.

Thank you!

Sincerely,

Jungwoo