Spontaneous digital brainwashing by Jeff Johnson, consultant and designer of custom FPGA boards and solutions.

KickStarter Campaign Launched: OnCourse Goggles

In recent weeks I’ve been working with some great people on an incredible new product for open water swimmers: OnCourse Goggles. Today we announced the launch of a KickStarter campaign which might help us to reach more people with this technology.

Check it out here: https://www.kickstarter.com/projects/oncoursegoggles/oncourse-goggles-navigate-open-water-and-swim-stra

Your support is greatly appreciated!

Here are some photos of the prototype electronics which I assembled in my lab. My soldering iron is in the background, but nothing on this board was actually hand soldered, it’s all QFNs, LGAs and 0402 passives. There’s no FPGA, just a micro and a bunch of very cool MEMS devices:

Jeff holds a bachelors degree in Electrical Engineering from the University of Sydney, and has more than a decade of experience in electronic and FPGA design. He has worked for design houses in Australia and Canada developing electronic products for a wide range of industries and markets. Jeff now works as an electronic design consultant and offers electronic and FPGA design services through his company Opsero.

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Recent posts

KickStarter Campaign Launched: OnCourse Goggles

In recent weeks I’ve been working with some great people on an incredible new product for open water swimmers: OnCourse Goggles. Today we announced the launch of a KickStarter campaign which might help us to reach more people with this technology. Check it out...
Ethernet gets robust

Ethernet gets robust

Announcing that the Robust Ethernet FMC is now in stock and available for purchase. Checkout the flashy new images of the first units, ravaging Ethernet packets in this tough new form factor. Jeff Johnson Jeff holds a bachelors degree in Electrical Engineering from...
Back in black

Back in black

Here’s a look at a batch of Ethernet FMCs fresh off the production line. Jeff Johnson Jeff holds a bachelors degree in Electrical Engineering from the University of Sydney, and has more than a decade of experience in electronic and FPGA design. He has worked for...

Using Chipscope and SDK at the same time

Today I was having problems debugging a design in Chipscope and SDK. For some reason, every time I used the Chipscope trigger (either the armed trigger or immediate) the Microblaze would reset or jump to another part of the code. I figured that Chipscope was messing...
Sneak look at the new Robust Ethernet FMC

Sneak look at the new Robust Ethernet FMC

Here are the first images of my new product: the Robust Ethernet FMC. This new variation of the Ethernet FMC contains all the features of the standard version but has been designed to fit the 10mm height profile of the Vita 57.1 standard. The Robust Ethernet FMC is...
Comparison of Zynq SoMs

Comparison of Zynq SoMs

In the last year or so, there has been an explosion in the availability of System-on-Modules (SoMs) featuring the popular FPGA+ARM combo Zynq-7000 SoC from Xilinx. I’ve always promoted the idea that FPGAs and SoCs allow for faster design cycles and rapid...
1.8V Version Ethernet FMC now available

1.8V Version Ethernet FMC now available

I recently received and tested the first 1.8V Ethernet FMCs and they are now available to buy on ethernetfmc.com. There are two main reasons why you’d actually want a 1.8V version: Firstly, some carriers only support VADJ of 1.8V (such as the VC707 and VC709)....
Ethernet FMC performance benchmarks released

Ethernet FMC performance benchmarks released

One question I get a lot about the Ethernet FMC is: What is the maximum throughput? It’s a good question, so I created an example design to help me get the answer. The maximum throughput test design, that you can download on Github, uses four hardware packet...
Ethernet FMC supports Xilinx Dev Boards

Ethernet FMC supports Xilinx Dev Boards

Support for the Xilinx Series-7 development boards AC701, KC705, VC707, ZC702 and ZC706 has been added to the Ethernet FMC product page. Now you can use the Ethernet FMC on any one of these boards and support up to 8 x gigabit Ethernet ports! That’s right, the...
Ethernet FMC first units shipped

Ethernet FMC first units shipped

Today I’m excited to announce that the first Ethernet FMCs were shipped! I would like to say thanks to all those who pre-ordered the Ethernet FMC, thanks for your patience and confidence and I hope the product enables you to develop new and exciting technologies...