topic Boot from QSPI on the MIMXRT1062 in i.MX RT Crossover MCUs

Boot from QSPI on the MIMXRT1062

edcs — Sat, 02 Oct 2021 01:53:54 GMT

Hello,

I am new to this and working on a custom board with MIMXRT1062DVJ6B. I am able

to write code using mcuxpresso ide and using the ARM Keil debugger probe able to

debug and run the code. Can someone please post mcuxpresso example to boot from

QSPI on MIMXRT1062 or what steps to make the code bootable??

Your help would be greatly appreciated.

Thank you in advance.

JK.-edcs

Re: Boot from QSPI on the MIMXRT1062

Masmiseim — Sat, 02 Oct 2021 20:21:02 GMT

Hello edc,

the examples from the SDK can boot from the flash. Are these examples working on your board?

If not, which QSPI-Flash are you using in your design?

Best regards

Re: Boot from QSPI on the MIMXRT1062

mjbcswitzerland — Sun, 03 Oct 2021 15:45:15 GMT

Booting from serial NOR is controlled by BOOT_CFG[4:7] - pins GPIO_B0_08..GPIO_B0_11, which should be '0' at reset. There are other pins controlling some further details too.
If these are not defines like this the processor will try booting from other sources.

In case the HW is not allowing t to boot as required and can't be modified to do so you can connect in ISP mode and program eFUSEs to override it checking the pins and force the mode that you require.

Regards

Mark

[uTasker project developer for Kinetis and i.MX RT]
Contact me by personal message or on the uTasker web site to discuss professional training, solutions to problems or rapid product development requirements

For professionals searching for faster, problem-free Kinetis and i.MX RT 10xx developments the uTasker project holds the key: https://www.utasker.com/iMX/RT1062.html

Re: Boot from QSPI on the MIMXRT1062

bruceeisenhard — Sun, 03 Oct 2021 19:52:03 GMT

The part is W25Q128JVS

In Keil we can load code and execute from QSPI, just can't get the bootloader to recognize the part

In MCUxpresso says we loaded the code, but can't see it.

Re: Boot from QSPI on the MIMXRT1062

Masmiseim — Mon, 04 Oct 2021 06:53:27 GMT

Hello bruceeisenhard,

do you have made the adjustments in the flexspi_nor_config_t datastructure for your flash type? This data structure is read by the HW-Bootloader (Preloader) on startup and defines how the flash is accessed.

Check also your linker configuration to ensure that the .boot sectors are placed in the right order at the beginning on the image placed in your flash.

Best Regards