摘要
在一个USB系统中,USB主机管理系统主机与外设的通信传输时,调度器的设计是USB主机驱动设计的主要部分。对嵌入式USB主机控制器而言,主机一般以帧为基础分时调度各传输单元。介绍ISP1760的工作机制,设计基于ISP1760的嵌入式USB主机传输调度器,给出了具体的算法,并成功应用于无线通信终端设备中。
The design of scheduler is a main part in the design of USB host driver in a USB system considering the communication between the host of USB Host Management System and its peripherals. For embedded USB host controller, the host attemper every transportation unit based on frame in time-sharing. The working mechanism of ISP1760 is introduced in the paper, a design of transportation scheduler of embedded USB Host is proposed based on ISP1760 as well, and an algorithm for it is put forward in detail, the algorithm has been applied in wireless communication terminals successfully.
出处
《计算机应用与软件》
CSCD
2009年第3期92-94,共3页
Computer Applications and Software
基金
浙江省科技计划重点科研项目(2006C21022)
