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AM2732: QSPI boot: is it supported 2-line/1-line SPI flash?

Chris Meng
Mastermind 40966 points

Part Number: AM2732

Hi,

My customer would like to know if AM2732 QSPI flash boot mode can use flash which doesn't support 4-line mode. 

Would you pls help?

Do we have more document to describe the detail info of the QSPI flash boot? The info in TRM is not enough.

Thanks,

Chris

  • 0
    TI__Genius 15435 points

    Hi

    The ROM on AM2732 expects the flash to be in the 1S-1S-4S (4 lines fo the Data in Single data rate mode) however when you interace an normal SPI flash where there are only 2 data lines (MOSI/MISO) the QSPI boot mode doesn't work out of the box as the ROM fails to read the data and hence all the consecutive tasks like SBL loading etc., fails 

    So to answer your query, NO the Am2732 doesn't work if you have a normal SPi flash instead of a QSPI flash.

    Thanks