Simulating Designs for Lattice FPGA Devices Lattice Semiconductor Corporation 5555 NE Moore Court Hillsboro, OR 97124 (503) 268-8000 May 2007 Copyright Copyright © 2007 Lattice Semiconductor Corporation. This document may not, in whole or part, be copied, photocopied, reproduced, translated, or reduced to any electronic medium or machine- readable form without prior written consent from Lattice Semiconductor Corporation. Trademarks Lattice Semiconductor Corporation, L Lattice Semiconductor Corporation (logo), L (stylized), L (design), Lattice (design), LSC, E2CMOS, Extreme Performance, FlashBAK, flexiFlash, flexiMAC, flexiPCS, FreedomChip, GAL, GDX, Generic Array Logic, HDL Explorer, IPexpress, ISP, ispATE, ispClock, ispDOWNLOAD, ispGAL, ispGDS, ispGDX, ispGDXV, ispGDX2, ispGENERATOR, ispJTAG, ispLEVER, ispLeverCORE, ispLSI, ispMACH, ispPAC, ispTRACY, ispTURBO, ispVIRTUAL MACHINE, ispVM, ispXP, ispXPGA, ispXPLD, LatticeEC, LatticeECP, LatticeECP-DSP, LatticeECP2, LatticeECP2M, LatticeMico8, LatticeMico32, LatticeSC, LatticeSCM, LatticeXP, LatticeXP2, MACH, MachXO, MACO, ORCA, PAC, PAC-Designer, PAL, Performance Analyst, PURESPEED, Reveal, Silicon Forest, Speedlocked, Speed Locking, SuperBIG, SuperCOOL, SuperFAST, SuperWIDE, sysCLOCK, sysCONFIG, sysDSP, sysHSI, sysI/O, sysMEM, The Simple Machine for Complex Design, TransFR, UltraMOS, and specific product designations are either registered trademarks or trademarks of Lattice Semiconductor Corporation or its subsidiaries in the United States and/or other countries. ISP, Bringing the Best Together, and More of the Best are service marks of Lattice Semiconductor Corporation. Other product names used in this publication are for identification purposes only and may be trademarks of their respective companies. Disclaimers NO WARRANTIES: THE INFORMATION PROVIDED IN THIS DOCUMENT IS “AS IS” WITHOUT ANY EXPRESS OR IMPLIED WARRANTY OF ANY KIND INCLUDING WARRANTIES OF ACCURACY, COMPLETENESS, MERCHANTABILITY, NONINFRINGEMENT OF INTELLECTUAL PROPERTY, OR FITNESS FOR ANY PARTICULAR PURPOSE. IN NO EVENT WILL LATTICE SEMICONDUCTOR CORPORATION (LSC) OR ITS SUPPLIERS BE LIABLE FOR ANY DAMAGES WHATSOEVER (WHETHER DIRECT, INDIRECT, SPECIAL, INCIDENTAL, OR CONSEQUENTIAL, INCLUDING, WITHOUT LIMITATION, DAMAGES FOR LOSS OF PROFITS, BUSINESS INTERRUPTION, OR LOSS OF INFORMATION) ARISING OUT OF THE USE OF OR INABILITY TO USE THE INFORMATION PROVIDED IN THIS DOCUMENT, EVEN IF LSC HAS BEEN ADVISED OF THE POSSIBILITY OF SUCH DAMAGES. BECAUSE SOME JURISDICTIONS PROHIBIT THE EXCLUSION OR LIMITATION OF CERTAIN LIABILITY, SOME OF THE ABOVE LIMITATIONS MAY NOT APPLY TO YOU. LSC may make changes to these materials, specifications, or information, or to the products described herein, at any time without notice. LSC makes no commitment to update this documentation. LSC reserves the right to discontinue any product or service without notice and assumes no obligation to correct any errors contained herein or to advise any user of this document of any correction if such be made. LSC recommends its customers obtain the Simulating Designs for Lattice FPGA Devices ii latest version of the relevant information to establish, before ordering, that the information being relied upon is current. Type Conventions Used in This Document Convention Meaning or Use Bold Items in the user interface that you select or click. Text that you type into the user interface. <Italic> Variables in commands, code syntax, and path names. Ctrl+L Press the two keys at the same time. Courier Code examples. Messages, reports, and prompts from the software. ... Omitted material in a line of code. Omitted lines in code and report examples. [ ] Optional items in syntax descriptions. In bus specifications, the brackets are required. ( ) Grouped items in syntax descriptions. { } Repeatable items in syntax descriptions. | A choice between items in syntax descriptions. Simulating Designs for Lattice FPGA Devices iii Simulating Designs for Lattice FPGA Devices iv Contents Simulating Designs for Lattice FPGA Devices 1 Version Compatibility 1 Synopsys VCS 1 Cadence NC-Verilog 1 Cadence NC-VHDL 2 Aldec Riviera Pro 2 Aldec Active-HDL 2 Verilog Library Files 2 VHDL Library Files 3 Performing Simulation with Synopsys VCS 3 Functional RTL Simulation 3 Post-Map and Place-and-Route Gate-Level Simulation 3 Post-Map and Place-and-Route Gate-Level Simulation with Timing 4 Performing Simulation with Cadence NC-Verilog 4 Setting Lattice Semiconductor Libraries 4 Functional RTL Simulation 6 Post-Map and Place-and-Route Gate-Level Simulation 6 Post-Map and Place-and-Route Gate-Level Simulation with Timing 7 Performing Simulation with Cadence NC-VHDL 7 Setting Lattice Semiconductor Libraries 7 Functional RTL Simulation 10 Post-Map and Place-and-Route Gate-Level Simulation 10 Post-Map and Place-and-Route Gate-Level Simulation with Timing 10 Performing Simulation with Aldec Riviera Pro 11 Creating or Updating Lattice Semiconductor's FPGA Vendor Libraries 11 Performing Verilog Simulation 14 Performing VHDL Simulation 15 Aldec Active-HDL 16 Simulating Designs for Lattice FPGA Devices v Contents Simulating Designs for Lattice FPGA Devices vi Simulating Designs for Lattice FPGA Devices This document explains how to use Synopsys® VCS®, Cadence® NC- Verilog®, Cadence NC-VHDL®, and Aldec Riviera Pro®, and Aldec Active- HDL® software to simulate designs that target Lattice Semiconductor FPGAs. It shows you how to use these simulators to perform functional register- transfer-level (RTL) simulation, post-map simulation, and place-and-route gate-level simulation with and without timing simulation. Note Lattice Semiconductor does not supply the Synopsys VCS, Cadence NC-Verilog, Cadence NC-VHDL, Aldec Riviera Pro, or Aldec Active-HDL simulators. You must obtain them independently. Version Compatibility Lattice Semiconductor ispLEVER software is compatible with the following versions of Synopsys VCS, Cadence NC-Verilog, Cadence NC-VHDL, and Aldec. Synopsys VCS Lattice Semiconductor ispLEVER software version 7.0 is compatible with Synopsys VCS version 2006.06 on the Solaris and Linux operating systems. Cadence NC-Verilog Lattice Semiconductor ispLEVER software version 7.0 is compatible with Cadence NC-Verilog version 5.83 on the Solaris, Linux, and Windows operating systems. Simulating Designs for Lattice FPGA Devices 1 Simulating Designs for Lattice FPGA Devices Verilog Library Files Cadence NC-VHDL Lattice Semiconductor ispLEVER software version 7.0 is compatible with Cadence NC-VHDL version 5.83 on the Solaris, Linux, and Windows operating systems. Aldec Riviera Pro Lattice Semiconductor ispLEVER software version 7.0 is compatible with Aldec Riviera (Pro) version 2007.06 on the Solaris, Linux, and Windows operating systems. Aldec Active-HDL Lattice Semiconductor ispLEVER software version 7.0 is compatible with Aldec Active-HDL version 7.2 SP2 on Windows only. Verilog Library Files The Verilog functional and behavioral simulation library files are installed with the ispLEVER software in the locations shown in Table 1. Table 1: Verilog Functional and Behavioral Simulation Library File Locations FPGA Family Library Location LatticeEC <path_to_ispLEVER_installation>/cae_library/ simulation/verilog/ec LatticeECP-DSP <path_to_ispLEVER_installation>/cae_library/ simulation/verilog/ecp LatticeECP2-DSP <path_to_ispLEVER_installation>/cae_library/ simulation/verilog/ecp2 LatticeXP <path_to_ispLEVER_installation>/cae_library/ simulation/verilog/xp LatticeXP2 <path_to_ispLEVER_installation>/cae_library/ simulation/verilog/xp2 LatticeSC <path_to_ispLEVER_installation>/cae_library/ simulation/verilog/sc MachXO <path_to_ispLEVER_installation>/cae_library/ simulation/verilog/machxo Simulating Designs for Lattice FPGA Devices 2 Simulating Designs for Lattice FPGA Devices VHDL Library Files VHDL Library Files The VHDL functional and behavioral simulation library files are installed with the ispLEVER software in the locations shown in Table 2. Table 2: VHDL Functional and Behavioral Simulation Library File Locations FPGA Family Library Location LatticeEC <path_to_ispLEVER_installation>/cae_library/ simulation/vhdl/ec/src LatticeECP-DSP <path_to_ispLEVER_installation>/cae_library/ simulation/vhdl/ecp/src LatticeECP2-DSP <path_to_ispLEVER_installation>/cae_library/ simulation/vhdl/ecp2/src LatticeXP <path_to_ispLEVER_installation>/cae_library/ simulation/vhdl/xp/src LatticeXP2 <path_to_ispLEVER_installation>/cae_library/ simulation/vhdl/xp2/src LatticeSC <path_to_ispLEVER_installation>/cae_library/ simulation/vhdl/sc/src MachXO <path_to_ispLEVER_installation>/cae_library/ simulation/vhdl/machxo/src Performing Simulation with Synopsys VCS This section explains how to perform simulation with Synopsys VCS. Functional RTL Simulation Use the following vcs command to perform a functional RTL simulation with one of the libraries shown in Table 1: vcs -RI <design_name>.v <test_bench>.v -y <Lattice_verilog_library_flocation> +libext+.v +v2k Post-Map and Place-and-Route Gate-Level Simulation Use the following vcs command to perform post-map and place-and-route gate-level simulation: vcs -RI <design_name>.v <test_bench>.vo -y <Lattice_verilog_library_location> +libext+.v +v2k Simulating Designs for Lattice FPGA Devices 3 Simulating Designs for Lattice FPGA Devices Performing Simulation with Cadence NC-Verilog Post-Map and Place-and-Route Gate-Level Simulation with Timing Use the following procedure to perform post-map and place-and-route gate- level simulation with timing: 1. Add the sdf_annotate line at the