【摘要】 采用 USB Host 器件 CH375与增强型单片机 STC89C51RD 实现 U 盘接口,设计了大容量数据采集系统。该系统遵守 USB 海量存储设备类规范中的 Bulk-Only 和 UFI 子规范,支持 FAT16文件系统。大量现场采集数据可以及时保存到 U 盘之中,并且可随时读取 U 盘通过液晶显示器以文本或曲线方式进行数据回放。利用 U 盘的良好移动性,与计算机进行数据交换十分方便,达到现场数据采集、室内数据分析的目的。更多还原

【Abstract】 A mass storage data acquisition system is designed based on USB Host device CH375 inter- face with enhanced microcontroller STC89CS1RD. The system is used to observe USB mass storage class Bulk-Only and UFI,support FAT 16 file system. Local mass data can be stored in USB FlashDi- sk as soon as possible. Stored data can also be read back for display on LCD in text or curve for- mat. Local data acquisition and office data analysis can be easily conducted for easy data exchanging between USB FlashDisk and computer.更多还原