October 2024
Intermediate to advanced
180 pages
5h 16m
Spanish
book
Primeros pasos con Bluetooth de baja energía
by Kevin Townsend, Carles Cufí, Akiba, Robert Davidson
Content preview from Primeros pasos con Bluetooth de baja energía
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Capítulo 2. Conceptos básicos del protocolo
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Aunque los usuarios suelen interactuar directamente sólo con las capas superiores de la pila del protocolo Bluetooth Low Energy, probablemente sea mejor empezar con una visión general básica de la pila completa, que proporciona una base sólida para entender cómo y por qué las cosas funcionan como lo hacen.
Como se muestra en la Figura 2-1, un dispositivo BLE monomodo completo se divide en tres partes: controlador, host y aplicación.
Cada uno de estos componentes básicos de la pila de protocolos se divide en varias capas que proporcionan la funcionalidad necesaria para funcionar:
- Aplicación
-
La aplicación, como en todos los demás tipos de sistemas, es la capa más alta y la responsable de contener la lógica, la interfaz de usuario y el manejo de datos de todo lo relacionado con el caso de uso real que implementa la aplicación. La arquitectura de una aplicación depende en gran medida de cada implementación concreta.
- Anfitrión
-
Incluye las siguientes capas:
-
Perfil de Acceso Genérico (PAG)
-
Perfil genérico de atributos (GATT)
-
Protocolo de Adaptación y Control de Enlace Lógico (L2CAP)
-
Protocolo de Atributos (ATT)
-
Director de Seguridad (SM)
-
Interfaz de controlador de host (HCI), lado del host
-
- Controlador
-
Incluye las siguientes capas:
-
Interfaz de controlador de host (HCI), lado del controlador
-
Capa de enlace ...
-
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