topic Re: Non-xip for hyperFlash boot in i.MX RT Crossover MCUs

Non-xip for hyperFlash boot

rans — Sat, 15 Sep 2018 11:24:11 GMT

Hello,

I am trying to understand what makes the bootable image to be detected as non-xip but the bootrom.

We actually need to make modification in helloworld_xip example, so that it will be non-xip bootable image (running from RAM).

Does anyone knows what are the required steps to modify the example from xip to non-xip with MCUXpresso IDE (yet, still a bootable image from hyperFlash) ?

Thank you,

Ranran

Re: Non-xip for hyperFlash boot

igorpadykov — Sun, 16 Sep 2018 22:54:21 GMT

Hi Ranran

one can look at

RT1050 - Booting from serial NOR flash to SDRAM
or reuse non-xip example from SD described in AN1207 How to Enable Boot from Octal
SPI Flash and SD Card
https://www.nxp.com/docs/en/application-note/AN12107.pdf
Also SDK contains a led blinky example gpio_led_output which by
default runs from a RAM region.

Best regards
igor
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Re: Non-xip for hyperFlash boot

rans — Mon, 17 Sep 2018 04:51:52 GMT

Thank you igor.

I am already familiar with these documents.

I work with MCUXpresso, not IAR.

I tried in my question to understand the required steps for building non-xip in MCUXpresso, and what makes a project non-xip.

Thank you,

ranran

Re: Non-xip for hyperFlash boot

rans — Mon, 17 Sep 2018 04:54:49 GMT

I also don't understand where is the flexSPI configuration parameter added with elftosb,

and how it can boot if it is not added....

I asked it in another question, I hope someone can take a look at it

https://community.nxp.com/thread/484576

ranran

Re: Non-xip for hyperFlash boot

jay_heng — Sun, 23 Dec 2018 05:41:34 GMT

You can also try this tool, with this tool, You can flash bare image into various boot devices easily and don't need to care about headers (ivt, boot data...)

GitHub - JayHeng/nxp-sec-boot-ui: A one-stop GUI tool to work with NXP MCU (Kinetis, i.MXRT, LPC) ROM bootloader, It can…