johnbeetem Posted August 26, 2014 Report Share Posted August 26, 2014 Flavia, the Free Logic Array, is a programmable device intended primarily as a teaching tool for FPGAs and CPLDs. Unlike every commercial device I'm aware of, Flavia's tool suite is free-as-in-liberty open-source software (FLOSS). This means it can run on platforms other than x86 PCs, including Raspberry Pi (tested) and BeagleBoard/Bone (not fully tested yet).Flavia is a "CPLD in an FPGA", which uses FPGA look-up tables (LUTs) to implement both logic and routing. Since Xilinx documents ways to find the locations of your LUTs and flip-flops in their otherwise undocumented bitstreams, it's possible to program those LUTs to make a reasonably nice CPLD that can be programmed using FLOSS tools.Flavia's first implementation uses the Papilio One 250K as its underlying FPGA. The 250K Spartan-3E FPGA has enough logic resources to make a useful CPLD and the FT2232D provides an easy programming interface for Flavia's software.If you're interested, take a look at my 'blog at element14, which has links to all the software and documentation.This post has been promoted to an article Quote Link to comment Share on other sites More sharing options...
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