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AM6442: confirmation on boot pin settings

Colombo Carlo
Mastermind 24070 points
Part Number: AM6442

Hi everybody 

please I  need a confirmation on boot  setting to have proper  boot out of OSPI 

I m expecting  to set as table hereunder  using OSPI as primary  , am I right _

I did the same on EVM and it does not work , while on EVM work if I set xSPI >  where am I wrong ?

thank you 

BR

here is the table 

  • 0
    Prodigy 130 points

    Hi TI team, 

    can anyone answer this question please?

    Why with a OSPI connected to AM64x Sitara I have to choose xSPI bootmode instead of OSPI bootmode config? I have tested this situation with your GPEVM board and, after programming the FLASH via UART, I configured the bootmode pins as OSPI but the board did not start, while configuring bootmode pins as xSPI the system booted correctly from the previously programmed OSPI.

    In the AM64x TRM (rev C) it is stated that "If the flash memory is complaint with JEDEC xSPI standards JESD251 and JESD216D (like the one in the GPEVM and the one I have installed on my board, from Infineon/Cypress), then xSPI boot mode is additionally supported". Additionally means alternative respect to something, in this case I assume respect to the default OSPI.

    Where am I wrong?

    Thank you in advance.

    Flavio

  • 0 in reply to Flavio Simoncini1
    TI__Mastermind 24070 points

    Hi Everybody , 

    please any news  ?  what are we doing wrong ?

    thank you 

    BR


    Carlo

  • +1 in reply to Colombo Carlo
    TI__Guru* 86180 points

    The flash device on the EVM is an xSPI that boots up in 1-bit data mode.  Thus, you must use xSPI boot mode which will start out in 1-bit mode, and when the ROM detect the appropriate capabilities, will switch to 8-bit mode. 

    If you set the bootmode pins to OSPI, the flash needs to power up in 8-bit data mode.  Some flash devices have this capability, but the one on the EVM does not.

    Regards,

    James