Fundamentals of Xmera Simulations

This chapter covers the fundamental principles of setting up and running a spacecaft simulation by writing a python script.

• What is Xmera
  • Motivation
  • From Modules to Spacecraft
  • Module Behavior Testing
• Xmera Process and Task Creation
  • Simulation Setup
  • Creating Processes
  • Creating Tasks
  • Delayed Task Start
  • Simulation Execution
• Adding Xmera Modules
  • Simulation Structure
  • Adding Modules to a Task
  • Module Imports
  • Execution Priorities
  • Expected Output
• Execution of Xmera Modules
• Seeing the Order of Process, Task and Module Execution
• Connecting Messages
• Recording Messages
  • Adding a Message Recorder
  • Pulling the Recorded Message Data
  • Clearing the Message Recorder Data Log
  • Reading the Current Value of a Message
• Creating Stand-Alone Messages
  • Creating a Stand-Alone Message
• Setting and Recording Module Variables
  • Logging a Module Variable
  • Example Output
  • Clearing the Data Log
  • Advanced Data Logging
• Advanced: Redirecting Module Output to Stand-Alone Message
• Advanced: Enabling and Disabling Tasks
• Advanced: Using DynamicObject Xmera Modules