Thanks for your help
Help us help you!
From your post the only things we know are:
- You have a SAME70 Xplained board
- You have a 2.4" TFT, supposedly based on ILI9341
- You have tried some software
We don't know:
HW:
- How you've wired the display.
- Its exact model (or a link to the relevant ebay/aliexpress/sparkfun/adafruit).
- Whether the display is really SPI (many different options, as ajb says).
- We'll leave the touch screen controller aside for the moment.
SW:
- If you managed to at least compile, link, flash and run the the examples you mention.
- Where they failed and how.
- If you've tried modifying them to suit your configuration, and what where the results.
ILI9341 is a very common controller, plenty of initialization code on the net that can be adapted to your board and configuration.