Description: This FAQ complements Application Note FPGA-AN-02084 by offering practical guidance for using Synopsys VCS and Cadence Xcelium in Lattice FPGA simulations. It expands on the original note with real-world examples involving Lattice IPs and ...
Description: This example details the simulation flow for a PCIe server IP targeting the MachXO5 device using manual Radiant library references in VCS. or Xcelium The process includes configuring environment variables, generating the IP from the ...
Description: This example demonstrates the recommended procedure for simulating a phase-locked loop (PLL) IP, specifically a foundation IP, on the Avant-G70 device using the cmpl_libs method within Synopsys VCS or Cadence Xcelium. The cmpl_libs ...
Description: This example outlines a fallback simulation method for a Phase-Locked Loop IP on the MachXO5 device using Synopsys VCS or Cadence Xcelium. It involves manually referencing the Radiant device library using +incdir/-incdir (VCS/Xcelium) ...
Description: This error is found when trying to simulate using Lattice libraries on Synopsys VCS. Solution: This is caused by a missing GSR instantiation in the user testbench. GSR is needed because all Lattice hard blocks are connected to GSR. ...
Description: In VCS, an error can occur when simulating designs with some foundational IPs. Solution: This is due to the 'include lines in the Verilog files used for the IP/s. Thus, VCS cannot resolve these modules. See the following steps to be able ...
Lattice Technical Support Expectation Please be advised that highest priority for Lattice Technical Support will be given to 1. Software which is not working as expected or suspected bugs. We recommend that customers use the latest software tools and ...
Lattice currently recommends the following for implementing Gigabit Ethernet interfaces: CertusPro-NX FPGAs: Use SERDES-based SGMII or RGMII Certus-NX, MachXO5-NX, and CrossLink-NX: Use RGMII These recommendations are based on updated LVDS-based ...
Glitch Fliter is used to prevent short-duration events of glitches, This is used to prevent False tripping on noise in a system. GLITCHFilter in device constraints , enables 1ns glitch filtering.
Description: In simulating designs for Lattice devices, this error may appear if there is no GSR instantiated in the testbench. Solution: There is no planned fix for this simulation issue. To work around this, please instantiate GSR on your ...
Description: Nexus device family has a default I2C slave address of 0x40 and you are allow to modify it based on your requirement. Solution: To permanently modify the I2C address, you can modify the desired value in .fea file and use the Programmer ...