Application Example of the Observer Pattern in C Language Projects The Observer Pattern is a behavioral design pattern that defines a one-to-many dependency between objects, so that when one object (the subject) changes state, all its dependents (the observers) are notified and updated automatically. This pattern is widely used in event handling systems, GUI frameworks, … Read more
Osprey Talks Microcontrollers • Source: Osprey Talks Microcontrollers The nRF5 SDK has updated the event callback mechanism starting from version 14, introducing the Observer Pattern to decouple different BLE layers from the callback functions for BLE events. This mechanism utilizes Flash sections, combining function calls in RAM with operations in Flash, which is a novel … Read more
ver0.3 Introduction Those who have persisted in reading this article are already remarkable, as they now understand the weak memory ordering architecture of ARM. You not only understand the types of memory, the memory sharing mechanisms, and the memory consistency mechanisms, but also the CPU architecture and the microarchitecture of processors, all of which lay … Read more
Hello everyone, I am the Mixed Content Master. This time we share a commonly used concept/programming model in embedded systems—the Observer Pattern. Overview of the Observer Pattern The Observer Pattern is a behavioral design pattern that focuses on establishing a dynamic subscription-notification mechanism between objects. It defines a one-to-many dependency between objects, so that when … Read more
1. Introduction The concept of an Event Bus may be unfamiliar to you, but you might be familiar with the Observer (Publish-Subscribe) pattern. The Event Bus is an implementation of the publish-subscribe pattern. It is a centralized event handling mechanism that allows different components to communicate with each other without needing to depend on one … Read more