CH378主机方式USB存储设备写入速度提升方法研究

摘要

CH378接口芯片完成对USB存储设备的读写操作,实现大容量数据的便携存储.系统采用MCU控制CH378接口芯片来完成对USB存储设备的读写操作.并对CH378主机方式USB存储设备的写入速度方案进行比较,从而设计一种新的方案对CH378主机方式 USB存储设备写入速度有较大程度的提升,经过测试验证,USB存储设备的写入平均速度达517.9 kbyte/s,对同类开发具有很好的参考意义,可以方便地集成于各种测试系统.%The article CH378 interface chip to complete the USB storage devices to read and write operations provides a portable large capacity data storage. System controlled by MCU CH378 interface chip completes the read and write operations of USB storage devices. Compared two projects about import speed of USB storage device based on CH378 host modes,a new method to lifting import speed of USB storage device has been designed under the same host modes. Test validation,the averages of the import speed of the USB storage device runs up to 517.9 kbyte/s has a great refer-ence for similar development,and gathers all kinds of test systems easily.