getPersistentVariables

Get persistent variables from the Simulink Real-Time target computer to MATLAB

Since R2022a

Syntax

variables_struct = getPersistentVariables(target_object)

Description

variables_struct = getPersistentVariables(target_object) gets persistent variables values from the persistent variables on the Speedgoat^® target computer and places these values into a structure of MATLAB variables on the MATLAB^® development computer.

Examples

Get and Set Persistent Variables

The getPersistentVariables function and setPersistentVariables function enable you to access persistent variables that are created and updated in the real-time application by using the Persistent Variable Read block and Persistent Variable Write block.

1. Get persistent variable values from target computer tg.

   myPersist = getPersistentVariables(tg)

   myPersist =
   
        []

2. Change the value of Variable1 in the myPersist structure. Add Variable1 to the structure.

   myPersist.Variable1 = 10;
   myPersist.Variable2 = int8([1, 2; 3, 4]);
   myPersist

   myPersist = 
   
     struct with fields:
   
       Variable1: 10
       Variable2: [2×2 int8]

3. Set the persistent variable values on the target computer. Get the variables from the target computer.

   setPersistentVariables(tg,myPersist)
   myMorePersist = getPersistentVariables(tg)

   myMorePersist = 
   
     struct with fields:
   
       Variable1: 10
       Variable2: [2×2 int8]

Input Arguments

target_object — Object that represents target computer

slrealtime.Target object

Provides access to methods that manipulate the target computer properties.

Example: tg

Output Arguments

variables_struct — Structure of persistent variable values

struct

Stores persistent variables from the target computer in a structure on the development computer.

Example: myPersist

Version History

Introduced in R2022a