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Tactical Systems Common Operating Environment (TS-COE)

The Tactical Systems Common Operating Environment (TS-COE) provides a robust solution for the challenges faced in re-implementing common functions across multiple projects without changing requirements. It addresses the difficulties of testing software before target hardware readiness and ensures maximum utilization of COTS processors and operating systems. With features like static threads and scheduling, and a methodology for easy implementation, TS-COE enhances the productivity and reliability of embedded, real-time software by simulating environments before hardware deployment.

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Tactical Systems Common Operating Environment (TS-COE)

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  1. Tactical Systems Common Operating Environment (TS-COE) Team A1 Williamson, MacFarlane, Crabtree

  2. Problem • Re-implementing Common Functions on multiple Projects with no requirements changes • Application Code locked to O/S and Hardware • Difficult to test Software reliably before Target Hardware is ready

  3. Requirements/Assumptions • Maximum Use of COTS Processors and Operating Systems • Handle High Bandwidth Sensors and DSP • Application Domain • Static Threads • Static Scheduling • Simulation before Hardware

  4. TS-COE • Tactical Systems Common Operating Environment (TS-COE) • Language, O/S Independent • Product and a Design Methodology • Simple to Implement • Improves Embedded, Real-Time Software Productivity and Reliability

  5. TS-COE Facilities

  6. Typical TS-COE Software Layers Applications COE Extensions Drivers Legacy API Legacy Wrapper COE VxWorks/BSP/Drivers Board Specs Hardware COE MCCR From Board Vendor

  7. API Logic Layer O/S and Communication Bindings TS-COE Sub-Layers

  8. Endpoints(implemented one or more per thread) Sending thread(s) Receiving thread (owns the pipe/endpoint) Thread pops one mailbox at a time out of endpoint and processes it Mail Registered mail goes in here when sent by sending thread(s) (FIFO)

  9. Design Methodology • Decomposition into Tasks • Inter-task Communication • Sequence Diagrams • Task State Machine Design • State Charts • Coding to Thread Templates • Simulation • Universal Test Driver (UTD)

  10. Application Interfaces(documented in sequence diagrams) threads MissileGuidance FmControl Arm Mailboxes (across VME and shared memory) GuidanceResults

  11. Sample State Chart

  12. Sample UTD Input Files

  13. Other Approaches • RT-COE • DAPRA Project • Large Scale Computing • RT-CORBA • DII COE Recommended for weapons system domain • Client/Server Distributed Object

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