Lattice Diamond: Where can i find the Black box model for MachXO3D that is targeting Cadence?

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  For simulation, Lattice supports Cadence NC-Sim. Please see the additional notes below. Simulation libraries follow the Verilog/VHDL LRM, so moving from older to newer simulators should not be an issue. Moving from newer to older simulators may cause ...

• 7180 - ICE40: Where to find the simulation model for ICE40 SPI/I2C core?

  Description: The simulation model for Lattice devices are shipped together with their respective tool software library. Solution: For ICE40, user may find the desired simulation model in iCECube2 installation directory: ..\lscc\iCEcube2.2020.12\vhdl

• Synthesis warning: Skipping pad insertion on <pin> due to black_box_pad_pin attribute.

  Description: In synthesis, the user may encounter this warning if the synthesis tool skips the IO pad insertion when a 'black_box_pad_pin' attribute is found on the port. Solution: Users may refer to the following from Radiant Help for ...

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  Lattice Diamond: Synthesis: You can define "init" attribute on a specific ORCALUT4 that you want to instantiate. Synthesis will translate the "init" to appropriate "lut_function" in the edif netlist that it writes out. Below is a small example with ...

• Lattice Diamond: What is the meaning between black and green IC Icon in the Post Map Resources?

  The Black icon means either the design is encrypted or it can be a macro. Simply saying that it is a blackbox. Green means you can view the source.