1 pointI have done it successfully in the past, but make sure the jumper is indeed removed. Also ensure you use as much 5V and GND wing pins as possible to lower noise and increase current capability. However, I wonder if you are replacing a PROM which used 5V as IO voltage. In this case DO NOT connect it to the wings, since IOs on the FPGA are 3.3V. There are a few solutions to convert those signals, but will depend on the IO standard (TTL or CMOS) that your system uses. If it's a TTL system, then using some 5V-tolerant buffers should do the trick. I have a design which interfaces a 3.3V FPGA to a 5V TTL system, and seems to be working OK, I can send you a link for the project if you are interested. Alvie
1 pointHi Ben, yes the Papilio boards are a great choice. One of these boards was my very first FPGA board, and I have had lots of fun and frustration. Iniitially using the Papilio One didn't go well, but I managed to work through the various problems and finally was able to start writing my own code. Still no idea what has happened to jack :-(
1 pointI'm a new Papilio Pro user (bought one a few months ago from Seeed Studio) and have bought a few wings recently from the GadgetFactory store. I think the Papilio boards would still be great for beginners but unfortunately they're not for sale anymore. It's a shame so much work went into this product and it's seemingly abandoned. I also wonder what happened to Jack Gassett. I hope he's well!