Accessing data from simulink to Matlab workspace

Hi,

I am trying to retrieve my data coming from simulink to plot it and perform some processing on it.

My test example is a 10 MHz /0.5 V discretized sinusoid exported to the workspace (sampling frequncey 80 MHz/100 sample per frame during a 1e-4 sec. simulation.

here the example and the configuration of the blocks - source and export:

when I look to the exported variable "sin"

struct with fields:

time: [81×1 double]

signals: [1×1 struct]

blockName: 'access_data_from_simulink/To Workspace'

I understand 81 as the number of frames

when I look the signals structure

I have

struct with fields:

values: [100×1×81 double]

dimensions: [100 1]

label: ''

I wanted to plot my sinusoid on an time axis from 0 to 1e-4 s. and perform a fft on it and have my dirac frequency at 10 MHz...

I admit the notion of frame for me is not very clear...

I have tried a lot of things but none is working...

an idea ?

thanks for your time