TMS320F280023C: Using Flash module to save data between power cycles

Hi Vamsi,

Thanks for the quick reply.

I read that there shouldn't be any flash accesses during the erase/program that will happen when I call the APIs -- so that means I will either have to make it "blocking" somehow (prevent my application code from running until that sector has been programmed) or somehow run the code from RAM temporarily.

Could you advise me on how to proceed with this restriction? Is there a mechanism by which I can program the MCU to execute from RAM instead of flash while an E/P cycle is going on?

Thanks,

Vishnu

Edit: Nevermind about the blocking part, seems like all I have to do is poll the status of the FSM until it's ready. Still curious about the the RAM part, is there a way to do that? Just for reference.

Edit 2: Seems like

#pragma CODE_SECTION(<function name>, ".TI.ramfunc");

Hi Vishnu,

I will be able to review and get back to you early next week.

Thanks and regards,

Vamsi

Hi Vishnu,

Do you have further questions on this?  Or can we close this thread?

Thanks and regards,
Vamsi

Hi Vamsi,

Apologies for the late reply, something came up in between.

Just confirming - the memcpy you are referring to is "memcpy(&RamfuncsRunStart, &RamfuncsLoadStart, (size_t) &RamfuncsLoadSize);", right?

Another small question. I was going through the example code and saw something else I didn't understand - #pragma  DATA_SECTION(Buffer,"DataBufferSection");.

Is this line necessary in application code involving flash? What does it accomplish?

Regards,

Vishnu