The STM32 range of Microcontrollers have a built in bootloader that may be used to update the firmware running on the MCU. Depending upon the STM32 variant being used this update may be done using a USART, USB, or SPI …
Once again I find that the best technology doesn’t always prevail. In the mid-1970s Sony launched the Betamax video format into the consumer marketplace and the “Videotape Wars” began; in spite of the superior quality of the video recordings made …
As a part of my Grow with Google Nanodegree I submitted my latest project for review yesterday. Imagine my surprise this morning when the reviewer rejected it because it crashed on startup. How could that be? I mean, if it …
The Black Magic Debug Probe (BMP) v2.1 was launched through a Kickstarter campaign. It is an Open Hardware, Open Source device that enables attachment of a source-level debug tool to an embedded Cortex-M MCU using either JTAG or SWD. The …
Currently, I am taking a Udacity Android Developer Nanodegree after receiving a Grow with Google Scholarship. My current project for the course is the first stage of an app enabling the user to browse The Movie Database (TMDb) for movies. …
I am a long-time user of source code management tools, for many years I used Microsoft Visual SourceSafe (VSS). I tried several times to understand and use Git but found the learning curve rather steep and went back to my …
Just received the first two pre-production prototypes of the Wireless Debug Probe (WDBP) from MacroFab. After initial inspection and power-up I am so far very pleased with the quality of the work done. There are a few firmware issues to …
For several decades I have designed, built, and tested my own PCBs for several products/projects. During all of that time I made use of traditional “through-hole” mounting components. Beyond the schematic capture and PCB design software no special tools were …
In my previous post I wrote about interrupts and atomic operations in embedded systems. After getting bitten myself with just such an issue I thought I would write about the details of what I just experienced on my current project. …
I have been trying to track down a particularly tricky problem on my Wireless Debug Probe over the last few days. When embedded systems begin to perform in strange, apparently illogical, ways the culprit is usually related to interrupts disrupting …
Interrupts, atomic variables, and the “volatile” keyword Read more »