Lattice Diamond: Lattice ispLEVER: The LatticeCore IPs downloaded from Lattice's website or using the IPExpress are available as a trial. These IPs will place and route in Diamond or ispLEVER, however, these are for evaluation purposes only. Using a trial version will enable a timer when the design is run in the hardware and the device will require a power reset or re-program to continue.
This is the reason that you may not be able to open these in EPIC. In order to be able to do that, you need a valid IP license.
Please contact the local Lattice Sales office to obtain a license. Find sales office closest to you by clicking here.