Execute specific functions from RAM

[nagarasr]

Hi, I would like to know the procedure to execute specific functions from RAM.

I have tried __ramfunc at beginning of the function but it requires all the subsequent functions also to be run from RAM. This would require lot of manual code updates. Is there a way to do it from linker script? I tried placing the functions like below but it would not move the function from ROM to RAM.

place in RAM_region { readwrite,
                                    block CSTACK,
                                    block HEAP,
                                    readonly object function1 // this is my expected function to run from RAM
};

[SofLit · Accepted solution]

Did you test the project I shared as it is and checked how it works?

Are you using an RTOS? if yes start with a simple code (without RTOS), then move on to a complex code.

For the interrupt, I suggested to follow the application note section: 2.2 Execute an interrupt handler from CCM SRAM.