TMS320F2800157: Writing Data into Specific location of Flash Memory

Loganathan C

Part Number: TMS320F2800157

Tool/software:

Hi team,

I need to write data 0x5AA5 in specified location (0x090000) of flash memory of F2800157 using #pragma LOCATION() directive.

I tried with the following commands in my .c file.

#pragma LOCATION(MagicKey,0x090000)
unsigned int MagicKey = 0x5AA5;

But it wasn't work. How do I achieve it?. Kindly help.

Thanks & Regards,

Loganathan C

over 1 year ago

0 Aishwarya Rajesh over 1 year ago

TI__Genius 17745 points

Hi Loganathan,

Please refer to these threads for more information:

(+) TMS320F280039C:How to write data to a fixed address in memory - C2000 microcontrollers forum - C2000︎ microcontrollers - TI E2E support forums

(+) TMS320F280049: How to place _c_int00 on a flash location? - C2000 microcontrollers forum - C2000︎ microcontrollers - TI E2E support forums

Best Regards,

Aishwarya

0 Loganathan C over 1 year ago in reply to Aishwarya Rajesh

Prodigy 50 points

Hi Aishwarya,

Instead of using Flash_API(), I tried with #pragma LOCATION() directive. But it wan't works for me. But in the threads you given to me, it is mentioned use Flash_APIs(). I need a solution with #pragma Location(). Kindly understand.

0 Aishwarya Rajesh over 1 year ago

TI__Genius 17745 points

Hi Loganathan,

According to the TMS320C28x Optimizing C/C++ Compiler v22.6.0.LTS User's Guide (Rev. Z), the format you've indicated should work in C. You can try using the location attribute in the following way and see if it works for your application: