EZ-USB-FX1 based PSOC 3/5 programmer source files uploaded Posted byDP November 17, 2011November 17, 2011 Leave a comment on EZ-USB-FX1 based PSOC 3/5 programmer source files uploaded As promised, Zeta uploaded PCB and schematic files for his PSOC 3/5 programer we covered a few days ago. Via the forum.