Zeroplus Technology, a leading brand for PC -Based Logic Analyzer, recently releases two new Protocol Analyzers: GPIB and FWH (based on PC system). 　　GPIB (General Purpose Interface Bus) was defined as IEEE488 standard by IEEE in 1975; With the constant evolution, the SCPI (Standard Commands for Programmable Instruments) was added in 1987, so multiple Devices can be controlled through the PC. Nowadays, GPIB has become a rather common Interface and many manufacturers have used it to develop their products. Such as Keithley Test point, NI Lab view. 　　FWH (Firmware Hub) is a device designed by Intel (Inter Product No: 82802). It can use its inside Flash array device to store data, and then communicate with ICH through LPC/FWH protocol. FWH can support 16 FWH devices at most, thereby the quantity of pins used to connect BIOS with Flash ROM can be reduced considerably. 　　Protocol Analyzer GPIB of Zeroplus Technology can be used to analyze the transmission control signals of GPIB and the packets (such as Command, Data, Ren, /Ren, End, IDY, SRQ and IFC) in the corresponding signal. Protocol Analyzer FWH can be used to analyze the transmission control signals of FWH, and the packets (such as Write, Read, IDSEL, Address, IMSIZE, Data, TAR, RSYNC and Describe) in the corresponding signal. By setting the GPIB transmission mode or FWH transmission mode for the device to be analyzed according to users’ requirements, users can solve problems and perform design testing more quickly, and further put their products into market much early. 　　In order to provide higher-speed analysis tool for developers, Zeroplus spares no effort to develop more special functions of Logic Analyzer, and many functions have obtained the patent. Besides the analysis tool, Zeroplus has developed many Protocol Analyzers, there are more than 80 Protocol Analyzers for customers to select. Zeroplus can also design the particular Protocol Analyzer in accordance with customers’ requirements.