IMAQ USB图象抓取 版本：Labview 8.0.x 以上 -This VI uses the NI-IMAQ for USB drivers to continously acquire an IMAQ image. The USB camera is selected from a list generated from the "IMAQ USB enumerate cameras" vi. Grab rate is controlled using an event

枚举主机上的USB设备数，并实现通过USB设备与单片机进行数据通信。-Enumerate the number of USB devices on the host, and data communication through the USB device with a microcontroller.

STM32F4 USB枚举调试，通过STM324的USART1跟踪枚举过程(STM32F4 USB enumerate Debug,Use USART1 to print the enumerate information)