MIMXRT1176 internal boot mode not working

[ancymuhammed]

I am using MIMXRT1176AVM8A and NOR flash W25Q512NWEIM for primary booting via flexspi. Flashed the LED blinking code. Code can flashed successfully in serial downloader mode 01. After changing to internal boot mode 10, it is not working. The same code is working fine in EVK. I had interchanged the flash between EVK & custom board. Now also EVK is working fine. While checking the Utilty tool it is clear that writing & reading occurs correctly. Compare the read dat with the write one and seems to be correct. Boot mode switch is also working. I had checked the voltages also. What may be the other possible reasons that internal boot is not occuring. The code is working fine in internal RAM.

[kerryzhou]

Hi @ancymuhammed 

Any RT issues, you can post it directly in the RT forum:

https://community.nxp.com/t5/i-MX-RT/bd-p/imxrt

Seems this is the same issue as your another post:

https://community.nxp.com/t5/i-MX-RT/Imxrt-boot-mode-not-working/m-p/1392412#M17749

Please check the boot mode, 10, 01, should be boot_mode[1:0], as your customer board is not the same as the EVK, you need to make sure your boot mode is set correctly.

As you mentioned, even your customer board in the internal boot mode, you still can connect the USB HID which like the serial download mode.

It means your internal boot failed.

Do you use the MCUBootUtility tool which I recommend you? Can you connect the board, download app, read out the flash?

Then use the MCUBOOTUTILITY to connect and program your board:

https://github.com/JayHeng/NXP-MCUBootUtility/archive/refs/tags/v3.4.0.zip
the related user manual is:
https://github.com/JayHeng/NXP-MCUBootUtility

Please reply me in the last area, as your another post reply me in the middle area, it is difflicut to find your updated information.

Best Regards,

Kerry