本文以usb逻辑分析仪作为一种典型的被测对象，进行了可测性设计的再开发工作，使其具有支持IEEE 1149.1边界扫描功能的设备结构。
This paper chooses USB logic analyzer as a typical tested object, and carries through a second develop to design it supporting IEEE 1149.1 boundary-scan function for testability.
今天我们可以看到大量应用usb接口的终端设备出现。如键盘、鼠标、调制解调器、打印机、扫描仪、数码相机、摄像头以及移动存储设备等等。
Now we see a large number of computer peripherals using USB around us, such as keyboard, mouse, modem, printer, scanner, digital camera, video CAM and removable storage device etc.
只要您选择所需的USB设备，应用程序会自动扫描并验证usb设备在一定的时间。
As soon as you select the desired USB device, the application automatically scans and validates the USB device at a certain time.
只要您选择所需的USB设备，应用程序会自动扫描并验证usb设备在一定的时间。
As soon as you select the desired USB device, the application automatically scans and validates the USB device at a certain time.
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