Archives

If that title means anything to you, you’ve spent time on the internet trying to make RTT work for you. Read on for code to help you dynamically change if your RTT output blocks or not.

It’s not clear how to tell if a semaphore is taken in FreeRTOS, but it’s critical in troubleshooting some problems.

You’re being a good engineer and have this super awesome system that allows you to do remote code updates with code signing, etc. on your embedded processor. That’s awesome. [...]

Sometimes we want to individualize a piece of hardware.  We don’t want to recompile the whole program (because then it’s hard to verify that it is the same program), and we don’t want to [...]

I recently picked up a Hantek DSO1202S oscilloscope to do some measurements of 120V AC power lines and UPSes.  I got it setup and took some measurements.  When I went to post-process the CSV [...]

While recently working on a project where we had included, nested, embedded, or inherited XSDs, I had errors while getting the XML to validate using LXML.  The solution ended up being that when [...]

One of this year’s projects was taking a CC2540 and making an interactive iBeacon with it.  This turned out to be more difficult than expected… which may explain recent design trends [...]

This is a story of trying to do the right thing… without reading all the instructions.  I recently was setting up OpenVPN for my home network.  The instructions are pretty strait forward. [...]

After troubleshooting a problem I was having with the supplier links in Altium Designer, I recently found that, for at least one of the supplier links (Mouser), your login credentials are being [...]

Sometimes you have a design where you don’t want to make a new footprint, but need to move a certain track or via 10 mil one way… for 30 copies of the same footprint.