eheap Part 2: Bins
Like dlmalloc and similar heaps, embedded heap uses bins to hold free chunks. However, eheap bins are designed for the needs of embedded systems.
eheap Part 1: Basics
embedded heap, eheap, is specifically designed for embedded systems. Traditionally, embedded systems have used block pools instead of heaps due to the need for determinism. However, that is changing.
Memory Protection Unit, Part 3: Memory Efficiency
In this part we show how to achieve good memory efficiency with the Armv7-M MPU.
Memory Protection Unit, Part 2: Advanced Concepts
In this part we will examine ways to work around MPU problems and to improve MPU control.
Memory Protection Unit, Part 1: Basics
In this part we cover the basics of use of an MPU with an RTOS.
Portals Isolate Partitions
Portals provide an indirect API to isolate services in one partition from callers in other partitions.
How to Use Task Callbacks
Task callbacks add powerful tools to the embedded programmers toolbox. Each task can have its own callback function.
The Mighty Event Group
Event groups can play a central role in determining when tasks run in a system. They are useful for system control and state machines. Most RTOSs support event groups, but capabilities vary.
ptasks and utasks Improve Security
Two kinds of tasks, two levels of protection — and a four-step, partition-by-partition process for moving vulnerable legacy code out of privileged mode into unprivileged mode.