The main introduction in this text USB host is applied into the typical model of the type realm at the embedded system, enunciation U dish application, primarily is to base on the embedded system support to the USB host into the type product.

• 本文主要介绍USB主机在嵌入式领域的典型应用与发展,表明U盘的应用,主要是基于嵌入式产品对USB host 接口的支持。