Rapid Prototyping with 16/32 bits MCU

You can import all necessary file in MPLAB, but you need to configure the whole project. Do remember to add the required library. It may be better to let matlab to compile all necessary library into one object file that you will add in your mplab project.

I'm very always interesting for a dac peripheral for the 33fj64(128)GP802.

Anyway, inf time should activate the block only once at initialization. Else, you could use a triggered subsystem and place the c call function block inside this subsystem. (There are few examples like that on the forum).