Copying object files from ROM to RAM

bjargalsaikhan — Wed, 04 Sep 2019 17:37:25 GMT

Hello,

I am confused on how to copy an object file that contains functions that erase, write, and read flash memory through flexspi.

I am working with MIMXRT1060-EVK dev-kit. I followed the IAR C/C++ Development Guide for Linking and compiling (http://supp.iar.com/FilesPublic/UPDINFO/013240/arm/doc/EWARM_DevelopmentGuide.ENU.pdf ).

But when check the map file, none of them seems to work with my code.

I think I am doing something wrong while I am working with the linker file.

In my linker file, I typed initialize by copy, which copies the file from ROM to RAM.

initialize by copy {
readwrite,
/* Place in RAM flash and performance dependent functions */
object flexspi_nor_flash_ops.o,
object fsl_flexspi.o,
section .textrw
};

My code is sitting in flash, I just wanted to copy and run the flexspi_erase, write, and read functions from the RAM to erase and write to the Flash memory.

If it is possible could you help me to tackle the problem?

Thank you.

Re: Copying object files from ROM to RAM

jeremyzhou — Fri, 06 Sep 2019 06:10:38 GMT

Hi Baasanjav Jargalsaikhan,

Thank you for your interest in NXP Semiconductor products and
for the opportunity to serve you.
Maybe you can consider to do that via using the Syntax: __ramfunc.
As the question is mainly about the IAR IDE, you'd better contact the expert of IAR for tech support.

Have a great day,
TIC

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topic Copying object files from ROM to RAM in i.MX RT Crossover MCUs

Copying object files from ROM to RAM

Re: Copying object files from ROM to RAM