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ID: 1822
实例类型: faq
分类: Simulation
相关: Aldec
产品系列: LatticeECP3

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Simulation: Why does my PMI FIFO get a simulation error, "Error! Fifo depth can only be power of 2!"?

Simulation: The PMI FIFO (First In First Out) simulation model has a check to prevent invalid FIFO depth. This message is meant to provide an accurate model of the generated FIFO. Giving FIFO depths as a power of 2 (such as 512) will prevent this error. Since hardware Embedded Block RAM (EBR) memories have a hardened architecture, software has to implement a full EBR and the unused data and control lines are tied to logic '0'.