We are currently using Kinetis K64 for our product. We are planning to migrate to IMXRT mainly because of the increased internal RAM size available (512KB). Now we are using Free RTOS from NXP on top of FNET bootloader for our product. We need to have provision for updating the Application Firmware via TFTP from the bootloader. Is there any bootloader available for iMX RT from NXP / third party which can be used to serve this purpose?
We are not planning to use external RAM for our design.