FWIW, I've noticed another related problem in the pfb_fir and pfb_fir_real > blocks. The mask callbacks for the TotalTaps parameter of these blocks > assign and use a variable named "size". Unfortunately, this seems to wind > up in the global workspace and overrides the built-in "size" function. This > can have all kinds of potential effects, but the one I've seen involves the > simulink "Counter Free-Running" block. It can't evaluate its initialization > commands because it uses something like "size(x)" to get the size of > variable "x". Since size has been redefined as a variable, "size(x)" is > interpreted as an attempt to reference an element of the variable "size", > but because variable "size" is a scalar you get an "exceeds matrix > dimensions" error. Then you're stuck until you "clear size" from your > workspace. > > I could change this myself, but if Andrew is making additional changes to > casper_library.mdl, perhaps he can change this variable's name himself to > something else that won't conflict so he can avoid having to merge the model > file. I think the "size" variable is used only within the callback, so it > should be a pretty localized change. I thought these callbacks executed in > their own namespace, but apparently not. > > FWIW, many of the FFT blocks have a similar, though commented out, use of a > variable named "size". > > Dave > >
I shall have a look at this too
