A Virtual Oscilloscope Module Based on PC104 Bus

摘要

This paper discusses the chief techniques and design principles of a virtual oscilloscope module based on PC104 bus. The module consists of pre-processing circuit, A/D circuit, on-board memories and control circuit integrated in FPGA.. It can achieve 30MHz bandwidth, 400 MHz real time sample rate and 512K byte real time memory. The module can be used in embedded PC system through PC104 bus interface.