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基于目前在数据采集设备和仪器仪表等嵌入式系统中,数据交换多采用串行口或以太网等方式的现状,本文介绍了一种以U盘为存储介质的U盘控制器设计方案,并给出了系统电路原理图和单片机读写U盘的程序流程。该方案以USB接口芯片CH376和单片机为核心,具有成本低、通用性强、可靠性高等特点,可方便的集成到各种测控系统中,解决了串口、网络通信方式需要布线施工、成本高、移动性差的问题。
Based on the current status of embedded systems such as data acquisition devices and instrumentation, the data exchange uses a serial port or an Ethernet network. This paper presents a U disk controller design using a U disk as a storage medium, Given the system circuit schematic and MCU read and write U disk program flow. The program to the USB interface chip CH376 and microcontroller as the core, with low cost, versatility, high reliability, and can be easily integrated into a variety of measurement and control systems, to solve the serial port, network communication requires wiring construction, high cost, Mobility problem.