Launch bare metal sample

OlivierG — Mon, 05 May 2025 09:28:39 GMT

I use a Imx 93 evk board
I am tring to measure the launch time of a bare metal yocto application

i launch
MACHINE=imx91-11x11-lpddr4-evk DISTRO=nxp-real-time-edge source ./real-time-edge-setup-env.sh -b build
bitbake nxp-image-real-time-edge

in the image there are samples
/root/examples/heterogeneous-multicore/

i would like to launch a sample which emit an Ethernet trame like : hello-world-ca
/root/examples/heterogeneous-multicore/hello-world-ca/ddr_release

I would like to launch wireshark on the host PC and measure approximatively the time beetween the power on and the first trame on wireshark

Is there a way to flash an SD card with this example so that it boots immediately ?

Greeting

Olivier

Re: Launch bare metal sample

JosephAtNXP — Mon, 05 May 2025 18:30:50 GMT

Hi,

Thank you for your interest in NXP Semiconductor products,

You could use the time command for measuring the time executing the command of loading and running the demo, you will use this command:

# Use the command from 3.3.2.3.1.2 RTEDGEUG setenv load_baremetal "ext4load mmc 1:2 0xC0000000 /examples/heterogeneous-multicore/hello-world-ca/ddr_release/hello_world_ca53_RTOS0_RAM_CONSOLE-0xc0fff000.bin; dcache flush; icache flush; cpu 2 release 0xC0000000" # Measure the time that takes to run the script time run load_baremetal

Then, you can add the script to bootscript for its automatic execution upon boot.

Regards

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Launch bare metal sample

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