CCS/TMS320F28069: TMS320F28069 Code not executing properly in flash

Hi Maida,

Please take a look at this FAQ to make sure the project is built for flash execution correctly: https://e2e.ti.com/support/microcontrollers/c2000/f/171/t/758797?-FAQ-F05-Flash-How-do-I-convert-a-RAM-based-project-to-a-flash-based-project- 

Once you load the code in to flash and execute the memcopy(), you can check the corresponding RAM address to see whether the ISR is copied correctly from flash or not.  Also, make sure that the wait-states are configured for the flash correctly.

Note: I will not be available next week. I will ask my colleague to help you in case if you still need help on this..

Thanks and regards,

Vamsi 

How do I check if waitstates are configured correctly? I thought the InitFlash() does this.

Maida,

Yes, InitFlash() will take care of it - if you are using it, then good. Make sure you execute it from RAM.

And check all other things mentioned in the FAQ.

I assigned this to my colleague for further support in my absence.

Thanks and regards,
Vamsi

I have checked most of the settings. Actually when I run the program from flash, it behaves differently if the controller is connected to the computer vs when the controller is disconnected from computer. Could you guide me as to what could be happening? For instance in my case I am trying to run a digital control loop and its behavior is changed in the aforementioned cases even though the parameters are same.

Maida,

Is this your custom project, or are you running any C2000ware DriverLib example? Can you try one of the simple example and build flash configuration and check if it works ok from Flash?

Maida,

Any update on this? Is your issue resolved?