Writing my own. Still early days development-wise. It will go up on github as open-source once I get it into a presentable state (its a right dog's breakfast of a hack at the moment). It will just be for lancelot/icarus boards initially as ztex are more difficult to interface to. Won't work on BlockEruptor (it that's what you mean be BE), that's a sha256d asic, completely incapable of blake.