Usb Interface Boundary-scan Test Controller Design And Realization

With the development of intergrated circuit, it is difficult to test the complicated circuit quickly and efficaciously used traditional test method. Boundary-Scan Test (BST) adds a Boundary-Scan Cell (BSC) with each I/O pin, and accomplishes the test of soldering and linking chips in PCB.The Universal Serial Bus (USB) is a mainstream interface connecting PC and PC peripherals. The signaling rate of USB 2.0 is 480Mbits/sec. It can satisfy the need of high speed data communication. USB-1149.1 controller uses CY7C68013 as USB chip which works in Genera Programmable Interface (GPIF) master mode. It uses FPGA which developed by the laboratory of CAT as 1149.1 chip which works in 25MHz and has 4 channels for DUT (Device Under Test). Using USB-1149.1 controller, one can build BST system achieve the purpose of controlling the JTAG bus by computer. USB-1149.1 controller is the most important part in BST system. On one side, it can transmit vector to DUT by JTAG interface; on the other side, it can transmit respondence to PC by USB bus. PC analyzes respondence and gets conclusion.The thesis introduces the design and implementation of USB-1149.1 controller including the design of circuit (schedule and PCB),the design of framework,the implementation of framework (the selection of mode, the configuration of the chip, the implementation of 4 waves),the design and implementation of driver,the design and implementation of dynamic link library (DLL),the debug of hardware, framework, driver and DLL.