How can i access to simulink's 'vco_testbench'block source code? Is it impossible?

How can i access to simulink's 'vco_testbench'block source code? Is it impossible?

[Steven Lord]

Could you share a little more information about why you're trying to look at that block's source code? Is it curiosity, is it an attempt to change how the block functions, is it that you think you've found a bug in the block and want to investigate, etc.?

Answer 1

[Angelo Yeo]

VCO Testbench block is fundamentally a masked subsystem. You can click the block and press "Ctrl + U" to look under the mask. Also, this is from a library. You can press "Ctrl + L" to look into the original library.

Moreover, the VCO Testbench doc explains what's inside the block.

Last but not least, if you are more interested in how the block measures "Phase noise" or "Kvco and Fo", you can open mask editor by clicking the block and pressing "Ctrl + M". The "initialization" function will tell you what the blocks do when simulation started to run. However, note that although these source codes are open to end users, they are not written for your convenience.