MATLAB: Use inputs of a user defined Matlab function block as global variables whithin the block

Question

In my simulink model there is a Matlab function which consists of many functions:

function block_output = MatFun1(input1, input2, ...)
  ...
  block_output = MatFun2(x, t)
end
 function y = MatFun2(x, t)
    y = f(x, t, input1, input2, ...)
 end

Mathematically MatFun2 is just a function of x and t. Therefore, I would like to keep the notation intact. However, the function requires the block's inputs as well. I tried to globalize the variables input1, input2, … to be able to use them in MatFun2 as well:

 function block_output = MatFun1(input1, input2, ...)
    global block_inputs
    block_inputs = [input1, input2, ...]
    ...
    block_output = MatFun2(x, t)
  end

However, I encounter the following error:

 Global declaration not resolved to a Data Store Memory block registered via the Ports and Data Manager.

As I mentioned, I do not want to pass input1, input2, … to MatFun2 as arguments. Moreover, I want these variables to be known just within this block (not the whole simulink model). Nested functions are also not desirable. What options do I have and how can I resolve the problem?

Answer 1

This documentation shows how to do this: How to Use Data Store Memory Blocks

Specific fix to the question in the comments to the question.