智能蓝牙:GATTVs. ATT-它们之间有什么区别? [英] Smart Bluetooth: GATT Vs. ATT - what are the differences between them?

问题描述

有人可以为我定义关贸总协定和关贸总协定之间的区别吗?我没办法理解.
我知道它们都是处理BLE服务的通用协议.但不是很了解.请解释.
谢谢！

Can anyone please define for me what are the differences between GATT and ATT? I didn't manage to understand.
I know that they are both generic protocol to handle BLE services. but didn't really understand it. Please explain.
Thanks!

推荐答案

ATT是一种较低级别的机制，基本上定义了如何传输数据单元(属性). GATT建立在ATT之上，定义了高级服务的组成方式以及在这些服务上运行的框架.

ATT is a much lower level mechanism that basically defines how to transfer a unit of data (an attribute). GATT is built on top of ATT and defines how higher level services are composed and the framework for operating on those services.

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