Boot Pinout for QSPI

[info54]

Hi all. I have a question about the pin selection for FLEXSPI for booting. I would like to know if we can boot off FLEXSPI_B instead of FLEXSPI_A as in the EVK. In table 8-1 of the reference manual, it seems to indicate that only FLEXSPI_A can be used to boot. However in table 52 of datasheet, it seems to imply that both can be used. In addition, in table 21-2 of the reference manual, eFUSE BOOT_CFG1[FLASH_TYPE] equal to 0b111 says 'on secondary pinmux option'. What is that referring to? What is the primary pinmux option, and can you not have QSPI on that?

[jeremyzhou]

Hi Chris K,

Thank you for your interest in NXP Semiconductor products and for the opportunity to serve you.
Before answer the question, whether you can tell me what the chip you use.
Have a great day,
TIC

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[info54]

Hi jeremyzhou,

That would have been useful information for me to provide:-/. I am using the i.MXRT1015.

Thanks,

Chris

[jeremyzhou]

Hi Chris K,

Thanks for your reply.
Yes, the references manual is not consistent with ROM bootloader peripheral pin mux in the datasheet, I'll inform you after confirming with the AE team.
Have a great day,
TIC

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Note:
- If this post answers your question, please click the "Mark Correct" button. Thank you!

- We are following threads for 7 weeks after the last post, later replies are ignored
Please open a new thread and refer to the closed one, if you have a related question at a later point in time.
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