embedded C

Why is this even an Issue? Little-endian, big-endian, native bit orders, there are lots of subtle or not-so-subtle differences between computer architectures. Depending on how we visualize our [...]

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 [...]

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 [...]

I took a look at capacitive touch sensing on the MSP430 in 2011 and it was a little… lacking. I had another project come up and had a chance to play around with it again a couple months [...]

I had an interesting problem show up when I was working on a project at the beginning of the year.  It involved an Analog Devices Blackfin 51x series processor.  We went to transition to their [...]

One of the projects I’m working on I chose to use one of the new Freescale KL25 MCUs.  They have an ARM Cortex-M0+ core and lots of peripherals to boot, including ones specifically designed [...]

We had a bug that just wouldn’t go away. Sometimes it would show up quickly, sometimes it would show up after the code had been running for a few days… but it would show up. [...]