USB是一种新兴的快速、双向、廉价、并可以进行热插拔的接口。在本文中，作者主要讨论基于三星公司的S3C44B0微控制器和Philips公司的PDIUSBD12接口芯片，设计的一种应用于数字喷墨印刷机系统的USB接口的具体开发过程。-USB is a new rapid, two-way, cheap, and can be hot-pluggable interface. In this paper, Based on the authors discuss the S3C44B0 Samsun

USB口打印机开启钱箱,里面有两种写法的源代码-USB port on the printer is turned on cash box, there are two ways for writing the source code

餐饮店的接单插件,可接外卖订单,支持网口串口USB口打印机，同时可设置小票的样式，java swt开发的-Orders plug restaurants and support network port serial USB port printer, java swt development