The following article is a step-by-step tutorial how to use the NXP MCUXpresso SDK & IDE to create a SD card bootable image on i.MX RT. It features the i.MX RT1050-EVK(B) but is with minor changes applicable to any other i.MX RT device:
Tutorial: Booting the NXP i.MX RT from Micro SD Card
- Creating a project running in RAM
- Generating S19 file
- Running application in RAM
- Creating SD card boot image with Flashloader and elftosb
- Loading image to SD card with MfgTool
- Booting i.MX from SD card image
I hope you find it useful,
Erich