Changing Tunable parameters from inside the model

Hello! My diploma thesis deals with code generation via the Real Time Workshop for a TI DSP. I am using tunable parameters to change values for certain blocks during runtime. For instance, I have a variable named "gain" in my Matlab workspace. As I declared it to be "exported global", it also appears in the generated C-code. During runtime, I change the value by use of a serial communication protocol. Now, I want to automatically let the generated program change one of those values, depending on the model state. Does anyone have an idea how to do this in Simulink so that the code does what I want?

Answer 1

[Kaustubha Govind]

See How Do I Change a Block Parameter Based on the Output of Another Block?