topic Pre-built image is loaded to the wrong location in FLASH in MCUXpresso Secure Provisioning Tool

Pre-built image is loaded to the wrong location in FLASH

andrewmccartney — Wed, 22 Jul 2020 19:18:03 GMT

It appears that using the Secure Provisioning Tool to program a pre-built image into an RT1050 the image is placed at 0x60001000 instead of 0x60000000. This results in an image that does not boot. Using the SDP and BLHOST utilities from the command line and placing the same image at 0x60000000 the result is an image that boots correctly.

1. Why does the tool place the image offset by 0x1000?

2. Is there a way to change this offset?

Here is a snippet from the log file of the tool when it writes the image into FLASH.

/Applications/MCUX_Provi_v1/MCUXpresso Secure Provisioning Tools v1.app/Contents/MacOS/tools/blhost/mac/blhost -u 0x15A2,0x0073 -j -- write-memory 0x60001000 /Users/andrewm/MUN4_NXP_provisioning_tool/u-boot.bin 9

Re: Pre-built image is loaded to the wrong location in FLASH

marek-trmac — Thu, 23 Jul 2020 06:31:22 GMT

Hi Andrew,

write expects the bootable image without FCB configuration (_nopadding.bin). Typical workflow for images located in flash:

image (interrupt vector table) starts at 0x60002000
during build, bootable image is created with IVT (image vector table) starting at 0x60001000
during write, FCB (flash configuration block) is created at 0x60000000

You can find detailed description in the documentation, chapter Workflow.

Regards

Marek

Re: Pre-built image is loaded to the wrong location in FLASH

andrewmccartney — Thu, 23 Jul 2020 14:39:17 GMT

Marek,

Thanks for the information, that's helpful in understanding how the tool works. Is there any way to change the settings of the tool in order to accommodate a bootable image that includes the FCB already?

thanks,

Andrew

Re: Pre-built image is loaded to the wrong location in FLASH

marek-trmac — Fri, 24 Jul 2020 06:12:47 GMT

Hi Andrew,

currently such image is not supported. However you can specify custom FCB content using:

toolbar - Boot Device - flex-spi-nor/user FCB file

Regards

Marek