Android 스마트폰 용 USB 통신 방식의 데이터 획득 장치 구현

Abstract

Two Java programs were developed to implement a data acquisition system for a smart-phone with Android OS by using a USB 2.0 OTG interface module; one program is a device driver program to operate the USB 2.0 OTG interface module, and the other program is an application program to send a digital data from FPGA to the smart-phone by calling the device driver program. The application program also stores the incoming data in a storage of the smartphone and plots a graph on the smartphone screen. Both programs were developed by using an android development kit and are running in the smartphone. The data acquisition system worked successfully with both a commercial USB 2.0 HS/FS interface module and a custom-made USB 2.0 FS interface module implemented in a FPGA.