MIMXRT1020-EVK xip folder

[tomsong]

There is a folder named xip with source files such as evkmimxrt1020_flexspi_nor_config.c and evkmimxrt1020_sdram_ini_dcd.c when the example project is imported with the sdk zip file. I can't find  where the structure defined in the source file is used. Could you help to explain how these files are used and what need to change for a new project?

Thanks!

[Alice_Yang · Accepted solution]

Hello Tom Song,

- The XIP is "execute-in-place", it includes flash confiuration block and Image Vector Table(IVT). It allows

programming application to external flash memory directly using debugger , for exaple hyper flash .

In the SDK proejct, IDE use macros to call the configure code in XIP,

In IAR:

MDK:

ARMGCC：

MCUXpresso IDE:

You can searched the Macros in files under XIP folder ， for example :

- If you want to change the configuration ,  you need to take a look at the Chapter 8  System Boot of  I.MX RT1020 Reference Manual .

main the parts:

8.6 Boot devices(internal boot) and 8.7 Program image .

Hope it helps,

Have a great day,
TIC

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[tomsong]

Hi Alice,

    Thanks a lot! It is very helpful.

    Regards,

    Tom