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AM263P4-Q1: AM263P OSPI XIP function

Motoyasu Hattori
Genius 11815 points
Part Number: AM263P4-Q1


Hi,

My cutomer has the following questions related OSPI/QSPI XIP function.  Could you pkease answer them?

*1. When one core execute program (XIP) on OSPI Flash, is it possible for another core to execute other programs on OSPI Flash?
Of course, we understand it is difficult to execute them simultaneously. But we want to know the correct executions for both cores.

*2. After one core is writing data to OSPI Flash, is it possible for another core to execute programs on another bank of OSPI Flash?

*3. If AM263P OSPI is connected with QSPI Flash (instead of OSPI Flash), is "XIP function" available?

Thanks and best regards,
M.Hattori.

 

  • 0
    TI__Genius 11815 points

    Hi,

    One additional question.  

    *4. Is it OK for two cores to access data of OSPI/QSPI Flash?  In other words, after one core finished access the OSPI/QSPI Flash data, is it corect operation for another core to access the OSPI/QSPI Flash data?   Please advise us.

    Thanks and best regards,
    M.Hattori.

  • 0 in reply to Motoyasu Hattori
    TI__Genius 11815 points

    Hi,

    Any response?

    Thanks and best regards,
    M.Hattori.

  • 0 in reply to Motoyasu Hattori
    TI__Expert 3550 points

    Hi Hattori-san,

    Apologies for the delay. It was a national holiday in India yesterday.

    Motoyasu Hattori said:
    1. When one core execute program (XIP) on OSPI Flash, is it possible for another core to execute other programs on OSPI Flash?
    Of course, we understand it is difficult to execute them simultaneously. But we want to know the correct executions for both cores.

    Yes, this possible to perform XIP concurrently from multiple cores.

    Motoyasu Hattori said:
    *2. After one core is writing data to OSPI Flash, is it possible for another core to execute programs on another bank of OSPI Flash

    Yes, this is possible using the FOTA Accelerator (Firmware over the Air) and RWW (Read While Write) Flash.

    For more information please refer to

    Motoyasu Hattori said:
    3. If AM263P OSPI is connected with QSPI Flash (instead of OSPI Flash), is "XIP function" available?

    Yes, XIP is possible using QSPI flash.

    Motoyasu Hattori said:
    Is it OK for two cores to access data of OSPI/QSPI Flash?  In other words, after one core finished access the OSPI/QSPI Flash data, is it corect operation for another core to acce

    Yes, this is a subset of 1st question. Concurrent access is supported hence accesses one after another is also supported.


    Thanks & Regards,
    Rijohn