I know how to boot from SPDIF_Flash .

[jongsubkim]

I know how to boot from SPDIF_Flash address 0x10000000 on LPC54628 LPCXpresso Board.

SPDIF_Flash: MX25R6435 3V version!

[Alice_Yang]

Hello jongsubkim,

LPC5628 doesn't support boot from external flash, while you can use it after initialize SPIFI, there is demo spifi demo under SDK, you can downlaod from:

https://mcuxpresso.nxp.com/en/select  

Regards,

Alice