how to copy the data in the flash to RAM for special address before project start running

[明伟张]

Dear all;

I need to copy the data  that from the flash special address to the RAM adress which is special;before project start running;

thanks for supply the sample code;

[davidtosenovjan]

Here I have described how it is possible to relocate code to the RAM:

https://community.freescale.com/thread/386638

Similar approach can be used with data as well but

- variable is already located in RAM whilst its default value is being loaded from flash during init, thus I don’t see any reason for relocation

int i = 10;

- if you need specific alignment, use pragma aligned like this (aligns to 8 bytes)

vuint32_t test[2] __attribute__ ((aligned (8))) =

{

    0xBABADEDA,

    0xABBAABBA

};

- if you really need to access specific address, you can do it as follows where 0x40000000 specifies address (don’t forget to reserve space in linker command file) for this accesses:

*(unsigned int*)0x40000000  = 0x44444444;