When tasks share resources, as they often do/must, strange things can and will happen. Priority inversions can be particularly difficult to anticipate. A basic understanding of the problem is key.
Memory leaks can be particularly risky for long-running embedded systems. Here are some tools to identify, track, and analyze memory leaks in embedded C and C++ programs.
Some human languages are read and written from left to right; others from right to left. A similar issue arises in the field of computers, involving the representation of numbers.
Pulse width modulation (PWM) is a powerful technique for controlling analog circuits with a processor's digital outputs. PWM is employed in a wide variety of applications, ranging from measurement and communications to power control and conversion.
The format of non-volatile data may change with a new version of software. Carefully planning data layouts and using data version numbers can make these upgrades easier.
Embedded systems programmers often value the assert() macro. This article explores the underlying definition of this handy macro, to show you how to roll your own.
The assert() macro is one of those simple tools that would not seem to merit an entire article, but I have come across an alarming number of engineers who have not heard of it or do not use it.
