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AWR2944EVM: the implement of the XIP operation

Sonia Yang
Intellectual 460 points
Part Number: AWR2944EVM
Other Parts Discussed in Thread: AWR2944

Hi

   I want to ask how to implement the XIP operation using the AWR2944EVM?

BR 

Sonia Yang 

  • 0
    TI__Guru* 91206 points

    Dear Sonia - 

    Thanks for the post and welcome to E2E!

    The AWR2944 does not support executing code from Flash memory. Memory use must be optimized when developing the application.

    The HWA includes Data Memory Compression support that allows to expand the data memory.

  • 0 in reply to Josh Wyatt
    Intellectual 460 points

    hi josh，

         Thanks for your reply, as my board hasn't arrived yet, so I'll have to work on our SDK first.

          I still have doubt about if the AWR2944 support the XIP operation or not.

    Firstly, in the SDK(mcu_plus_sdk_awr294x_09_00_00_15\examples\drivers\boot\sbl_qspi), will set the QSPI to memory map mode, then the SBL can copy the image from the address(EXT_FLASH + appimageoffset) to the CPU RAM, I think that means the SDF interfaced to the QSPI interface has mapped into the EXT_FLASH range, so if we can access the SDF through the EXT_FLASH, why we can not implement the CODE in the SDF through EXT_FLASH rather than copy the image into the CPU RAM?

    Secondly, if AWR can not support the XIP,  what is this tool(ti\mmwave_mcuplus_sdk_04_04_01_02\mcu_plus_sdk_awr294x_09_00_00_15\tools\boot\xipGen) used for?

  • +1 in reply to Sonia Yang
    TI__Mastermind 32865 points

    Hi,

    The XIP feature is not supported for AWR294x device. The ROM bootloader based on the SOP settings form the device decides on the booting mode of the device. The primary bootloader does not have any provisions for the XIP. 

    Since the SDK is shared across multiple devices the folder structure is kept same. hence the xipGen folder is there but it is not applicable for AWR294x device. 

    Thanks,

    Pradipta.