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Usage of System C

Usage of System C. Marco Steffan 0215884. Overview. Standard Existing Tools Companies using SystemC. Common Standards. Open SystemC Initiative (OSCI) IEEE 1666-2005 Standard SystemC Language Reference Manual (LRM) Members Intel, ARM, Cadence, CoWare, Synopsys,

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Usage of System C

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  1. Usage of System C Marco Steffan 0215884

  2. Overview • Standard • Existing Tools • Companies using SystemC

  3. Common Standards • Open SystemC Initiative (OSCI) • IEEE 1666-2005 Standard SystemC Language Reference Manual (LRM) • Members • Intel, ARM, Cadence, CoWare, Synopsys, STMicroElectronics Canon, NEC, Infineon

  4. Tools • Forte Design Systems: Cynthesizer • Synopsys: System Studio • Veritools (Verilator) • CISC Semiconductor Design+Consulting GmbH: System Architect Designer (SyAD) • Mentor Graphics • Candence

  5. Companies using SystemC • Nokia • Infineon Technology AG • Motorola • Intel • HP • Texas Instruments

  6. Nokia • Modelling networks on mobile platforms • Basic block approach (like LEGO) • Combine blocks (SpaceWire) • Build own Network-Simulator from scratch • Start with SystemC 2.0.1 • Extended to mySystemC

  7. Infineon Technology AG • Impact of different Datatypes on performance • Appropriate type-selection gains 2x and more simulation speed improvements • Available libraries provide almost all needed features • Gcc-version has almost no impact on speedup

  8. Motorola • Early systems architecture exploration • Corner case study • Design change impact evaluation

  9. Calls for Improvement (Motorola) • Enhance model components portability • Data flow interface • Generic TLM bus interface preserving accuracy and providing flexibility in bus models selection • Inter-module functional communication and simulation flow control • Off-module process triggering and dynamic parameters sharing • User interface • Model components configuration • Simulation result representation • User-friendly

  10. Intel • Modeling interconnect & non-processor components • Architecture models (“Architect’s View”) • Functional models (“Programmer’s View”) • Above are mixed and integrated with processor models for: • Architecture exploration • Early software development • Early (post-Si) system validation readiness • Early RTL verification • Testbench* and test development (with ESL DUT) • Application of system-level stimulus • Co-simulation • Co-emulation * Testbenches primarily developed in SystemVerilog

  11. SystemC Usage RTL Verification Modeling (UTF,TF, BA/CA) System Simulation (no RTL) FW development on SW model Architectural Verification Deployment of System Verilog Applications Enterprise Level Servers Embedded Processors ASSP’s Algorithms (FFT, DCT, Wireless, etc.) Reasons for SystemC: Non proprietary, IEEE Std., LRM Industry Support TLM, AVM, SCV, etc. Proven capabilities Cost Effective HP

  12. Calls for Improvement (HP) • Mixed Signal Libraries • Topology / Configuration generation (similar to generate function) • More Academic Proliferation • Keep entry price low (benefits start ups, small companies) • More industry donations • Tools to support higher abstraction (formal verification, advanced assertions) • Increase interactions with System Verilog(common TLM API’s?)

  13. Texas Instruments • Usage Areas: • High level architectural modeling (PV/PVT) • Low level architectural/SoC modeling (CC) • Synthesis (experimental) • Internal SystemC user group meetings • Bus models, CPU models, peripheral models, configuration, statistics, debug

  14. Call for Improvements (TI) • SystemC has poor support for asynchronous events • Interrups/resets/power-downs • Cooperative co-routines/threads • For full support would require every method and every thread to add async events to their sensitivity lists • Possible to use, but very inconvenient • Need kernel support

  15. Conclusion • Missing features / libraries • Still in initial stage • Not for every kind of simulation • Personal impression: „Would like to use, but...“

  16. Thank you!

  17. References • IEEE 1666 Standard http://standards.ieee.org/getieee/1666/download/1666-2005.pdf • Tools • http://www.asic-world.com/systemc/tools.html • European SystemC Users Group • http://www-ti.informatik.uni-tuebingen.de/~systemc/systemc.html • Wikipedia.org • http://en.wikipedia.org/wiki/Systemc • ASIC-World • http://www.asic-world.com/systemc/ • SystemC Community • http://www.systemc.org • Mentor Graphics • http://www.mentor.com/products/

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