Hello,
You can use Simulink blocks that ship with Deep Learning Toolbox. Please take a look at Deep Learning with Simulink section of documentation.
As of release R2021b we do not support library-free C code generation for dlnetwork, so you should be able to simulate your Simulink model with dlnetwork in it, but you would not be able to generate code from the deep learning block with your dlnetwork.
Do you need code generation or is simulation only acceptable?
HTH,
Arkadiy
