本文提出了一種基于USB HID 類的實時數據采集系統，詳細地介紹了該實時系統
的軟件設計方案和固件、硬件設計方案，并給出了實際的測試結果，操作簡便、采集數據可靠，效果良好。同傳統的數據采集系統相比，該方案使用USB HID類，避免了編寫上位機復雜的 USB 驅動程序，具有無驅動、簡單、實時和多路采集處理等優點。
關鍵詞：USB；HID；C8051F320；數據采集
Abstract: This paper presents the design of a data acquisition system base on the
USB HID class, and details the software structure, firmware and hardware structure,
and gives the result of test in operation, meanwhile, operation is simple and
convenient, and data acquisition is reliable, and the effect is wonderful. Compared
with traditional data acquisition system, this scheme employs USB HID class, no need
of designing complex USB drivers program on PC, and it has the virtue of driverless,
simple, real-time and multi-line data acquisition.
Key words: USB; HID; C8051F320; data acquisition