Design of virtual logic analyzer based on USB interface
Zheng Qin-jiang · Mechanical & Electrical Engineering Magazine · 2008
Traditional logic analyzer is complicated and expensive.Design of virtual logic analyzer based on Universal Serial Bus(USB) interface was described,functions such as display,analysis and control were realized on PC,thus difficulty and cost of hardware design was reduced,reliability and performance were enhanced.Triggering,caching and transferring of signal were realized based on MCU+FPGA.Communicating between PC by USB,its sampling rate was enhanced.The design of hardware and software was described.The result of application shows that the method is officient and effective.