Interruptions aren’t just a staple of our daily lives. They’re also crucial for making computer systems work as well as they do, as they allow for a system to immediately respond to an event. While on ...
The plan was simple: a quiet hike to get some fresh air and maybe some alone time. But Matty, the Bernese Mountain Dog, had ...
Microcontroller interrupts are one of the big tools in our embedded programming arsenal. They make the chip listen for particular events, and once detected they stop what they’re doing and run a ...
Traditionally programmers and organizations have had an irrational fear of using interrupts. One might think that statement is facetious but on more than one occasion in the last year the author has ...
Callbacks are references to executable code that higher levels of software pass into a function. These callbacks have the ability to greatly increase the portability and reuse of embedded software, ...
Nearly every embedded system uses interrupt service routines (ISRs). If you need to keep track of time, you likely have a timer interrupt that generates a system tick. If you have a USART, you’re ...
To see the interrupts occurring on your system, run the command: # watch -n1 "cat /proc/interrupts" CPU0 CPU1 0: 330 0 IO-APIC-edge timer 1: 11336 0 IO-APIC-edge i8042 4: 2 0 IO-APIC-edge 6: 3 0 ...
A Thursday Oval Office event, where President Donald Trump announced price reductions for weight loss drugs, was interrupted by a health emergency. One of the attendees at the event appeared to faint ...
Dear Eric: I have been married to a wonderful woman for many years. She is educated and has many years of practical experience. But if there is anything that makes me “bite the bullet” it’s her ...