Using Nextion displays with a Due

Hello,
I work on a project that comes to an end in memory capacity on Arduino Mega, I discovered the arduino DUE which has very good capacity for my needs but wanting to test the Nextion 7 "it blocks! already advanced on the subject?

Split post from another topic

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Please provide more information. I have no idea what the question means. What does 'it blocks' mean?

Please read General guidance on using the forum
And follow the instructions.

Although it was for a Sainsmart LCD, this thread, reply #13 might help you:

https://forum.arduino.cc/index.php?topic=286567.0