Start Playing With Your Papilio Pro Logic Analyzer!

If right now you are kind of what is this guy talking about? Then you should check this and learn one of the almost infinite applications of a Papilio Pro.

Today, we bring an article that explains one use for your brand new Papilio Pro Logic Analyzer. This is to capture the communication via I2C between a Bus Pirate and the fuel gauge chip on the Fuel Tank BoosterPack.

This article is part 2 of a series of 3. Read article one to get all the details about setting up the project and then start playing with your Papilio Pro Logic Analyzer to capture all the traffic. Enjoy!

By Jan Cumps´Blog

Gadget Factory Store Discount!



Great news for everyone who has been asking about the Papilio Pro and some other products availability: Since we are out of stock on Papilio Pro boards we decided to take pre-orders and offer you the biggest discount to try to make up for the inconvenience. If you are willing to back order the Pro we are knocking the previous sale price by $15 so the new sale price is $69.99 which is the lowest Papilio pro price ever and we will ship your order as soon as the new batch is complete around October 15th.

On an other side we expect the new LogicStart MegaWing and Papilio DUO batches to be ready next week so we are now taking pre-orders for these items too.

Don’t miss the opportunity and take advantage of our new discount offer before the finish of the new batch:

Acrylic Enclosures For Papilio Pro Now Back In Stock!


Hello, hackers!

Just wanted to drop you all a quick note that the acrylic enclosures for the Papilio Pro are now back in stock at the store. There has been a hefty demand for these, and the design (by Os1r1s) is absolutely stunning. If you’re going to hack around with your PPro, we recommend that you do it in style!

It looks like there’s a Papilio One case coming soon by the same designer too!  Awesome. Here’s the render of the Papilio One enclosure: (And don’t worry – if you stay tuned to the site, you’ll be the first to know when it hits.)

We slashed the price on the newly re-available Papilio Pro enclosure from $19.99 down to $17.99 to make up for the shortage. Hopefully that will sweeten the pot a little for you guys!

(via the GF store, Os1r1s)

“Really Dumb” MIDI Monitor For RetroCade


Forum member Offroad recently hit us up with an example project, which is  based on the Papilio Pro and the RetroCade Synth. He’s calling it the Really Dumb MIDI Monitor.  This deserves a bit of explanation:

For starters, Offroad explains what he means by the term, “really dumb meaning: All the fun stuff like printf(“%02c”, byte) happens in RTL state machines…”

The project includes a simple MIDI parser for note on-/off messages. It remembers the state of all keys (all channels are combined, “omni mode”). Maybe this could be useful for some MIDI music experiments with minimal fuss: Excluding UARTs and FIFO (reused modules), the actual RTL code that does all the work is only about two screen lengths.

Here are a couple of links to the actual examples that he created, so make sure to click through and check them out for yourself.

  • Papilio Pro MIDI Monitor – (zip file)
  • meepMeep – (zip file) – This one is a MIDI monitor that actually makes an audible impression with an 18-bit saw waveform.  Offroad says it sounds like a Farfisa!  (See image above) Yikes indeed!

Do any of you guys have anything interesting that you’re working on for the RetroCade?  We’d love to hear about it!  Feel free to post to the forums, or comment on this post!  Right on.

(via the forums, and thanks to Offroad)


Initial Impressions: Firing Up The Papilio Pro

Well, what do ya know! Duane Benson over at All Programmable Planet has another nice article up, this time on the subject of getting his Papilio Pro ready. Ready to do his bidding, that is!

If you read the previous article here about the progress of the tele-presence robotic avatar that Duane is working on, I think you’ll agree that this one sheds a bit more light on where he’s coming from and how he is approaching his endgame. Let’s check in real quick – regarding how he seems to blow up his GPIO:

In order to deal with my exploding GPIO problem, I didn’t go to group therapy. Instead, I purchased two Gadget Factory 16-bit I/O buffer wings when I ordered the Papilio Pro. They cost a lot less than a new FPGA board and are completely transparent to the FPGA configuration. The image [above] shows the Papilio Pro, one of my I/O buffer wings, an LED/button wing, and a breadboard with a switch and four LEDs.

Before getting back to work on my robot avatar, I wanted to give the Papilio Pro a quick run-through to see what changes I might need when migrating my existing designs from the Avnet/Xilinx Spartan-6 LX9 board.

Click through to Mr. Benson’s article to see what his thoughts and ideas are. It is a great read, as per usual:

Thanks for the great feedback about the Papilio Pro, Duane. It’s cool to see what you have been working on!

(via All Programmable Planet)

Firing Up The RetroCade Synth: First Impressions

We found another great article by Phillip Howard from Raspberry Pi @ Gadgetoid, this time on Getting Started With The Papilio RetroCade Synth. In the image above, you can see the RedroCade MegaWing plugged into its host Papilio Pro. This is the setup that Phillip used for the purposes of his article.

After some initial fussing with Windows 8 drivers and dealing with a reversed polarity situation from MIDI note on/off commands, Philip found himself having a genuinely great time with the synth. Let’s check out some of his findings from the article:

The beauty of the RetroCade is not that is incorporates an FPGA clone of the legendary Commodore 64 SID and Yamaha YN-2169 chip, but that both these hardware implementations, and the Arduino-like Sketch used to drive them are completely open and user-editable.

Playing with the RetroCade was a nice, Friday-friendly introduction to Papilio and once everything was up and running it was really a joy to play. The synthesizer is alarmingly powerful, and exudes nostalgia, but the software has both room for improvement and the opportunity for any user to delve in and make those improvements.

We really appreciate the kind words and your candor, Philip. I know that many people are excited to give the whole synthesizer hacking thing a go, and your article shows that it is really not as difficult as one might imagine it to be.

This is a great segue to a new blog series we will be sharing with you during the coming weeks in this space. We will be sharing a first-timer’s efforts in using the Papilio Pro, the Retrocade Synth, and the LogicStart! Should be interesting!

You can check out Phillip’s full article on his RetroCade experiences here.

(via Raspberry Pi @ Gadgetoid)