Technical data

Writing a Block Target File
3-19
Update(block, system)
Include an Update function if the block has code that needs to be updated each
major time step. Code generated from this function is either placed into
MdlUpdate or the subsystem’s Update function, depending on whether or not
the block resides in a nonvirtual subsystem. See
delay.tlc for an example of
the
Update function.
Derivatives(block, system)
Include a Derivatives function when generating code to compute the block’s
states. Code generated from this function is either placed into
MdlDerivatives
or the subsystem’s
Derivatives function, depending on whether or not the
block resides in a nonvirtual subsystem. See
integrat.tlc for an example of
the
Derivatives function.
Terminate(block, system)
Include a Terminate function to place any code into MdlTerminate.
User-defined S-function TLC files can use this function to save data, free
memory, reset hardware on the target, and so on. See
tofile.tlc for an
example of the
Terminate function.