hi im working on imx6ul board using yacto. the thing is when i coped ccimx6ulstarter-installer in to Root folder with fat32 configuration. after this configuration inserted sd card in my board but unable to see anything in terminal and i can see RX led is blinking when i press any key on my keyboard. i'm not able to see the board booting also. please help to get out of this.
To bring up the board you need to load u-boot prior to Linux.
I mean that boot ROM code of the processor loads u-boot from some media and then u-boot loads Linux kernel.
If you are using some stadnard boadd you can use u-boot from its binary demo files.
For example here you can get u-boot-imx6ulevk_sd.imx file for i.MX6UltraLite Evaluation Kit board:
https://www.nxp.com/support/developer-resources/software-development-tools/i.mx-developer-resources/...
When the board is running u-boot you can see some diagnostic output in terminal.
And finally you can load Linux kernel using u-boot.
Have a great day,
Victor
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