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DRA829V: How can we change the peripheral value to 80 (QSPI) of Boot Parameter Table Common Header

Hideaki Matsumoto
Genius 9120 points
Part Number: DRA829V

Hi,

Could you tell us how we can change the peripheral value to 80 (QSPI) in the "Table 4-51. Boot Parameter Table Common Header" from DRA829V TRM ?

Regards,
Hideaki

  • 0
    TI__Guru 52265 points

    Not completely sure I understand your request.  To boot QSPI, you need to set the BOOT pins (defined in Section 4.3) to select QSPI boot as primary boot source.

  • 0 in reply to Robert Eschler
    TI__Genius 9120 points

    Hi Robert,

    Thank you for your reply.

    They set the BOOT pins as QSPI boot, and QSPI boot was successful. However, "Peripheral" of Boot Parameter Table Common Header indicates "85" OSPI, not "80" QSPI. Why is it ? How can they set it correctly ?

    Thanks and regards,
    Hideaki

  • 0 in reply to Hideaki Matsumoto
    TI__Guru 51303 points

    Hi Matsumoto-san,

    As Robert is out until Monday, I will try to fill in. Based on the DIP switch settings for OSPI found in the SDK documentation's Boot Modes(link) section and for QSPI a FAQ(link) from my colleague, this is how OSPI and QSPI are set:

    • QSPI: SW8: 00000000 SW9: 00100000
    • OSPI: SW8: 00000000 SW9: 01000000

    Referencing the EVM(link) userguide's Table 3-8, setting SW9.3 high for QSPI and setting SW9.2 high for OSPI are both setting "Primary Boot Mode A". ROM code will read these pins to determine whether to boot from QSPI vs OSPI.

    Does this answer your question?

    Regards,

    Takuma