unable to compile simulink fft and peak algorithm due to some error.

I built couple blocks as shown in the image. However the error keeps poping up, and I have no idea how to change it. Appreciate your help.

Answer 1

[Birdman]

Enter Buffer block and set its Output buffer size(per channel parameter to 3 or to a number more than 3.

[Jun W]

the change on the buffer seems to work, it has show some datatype mismatch in between fft and peak finder, and i added the complex-real block(though it's for image).but now this error pops up. do you know how to solve it? Thank you so much.

[Birdman]

Can you share your model as a mdl file?

[Jun W]

you might need an arduino setup to check the model. Thanks!