Research And Development Of Fiscal Cash Register Based On UClinux System

Tax system is the safeguard for every country, and everyone knows that it is very important. Our tax tools drop behind the developed countries'a large distance. However, every country's tax system is different, we can't use their tax tools freely, so we must develop our tax tools quickly. The article deeply discusses the disadvantage of our country's fiscal cash Register at present time, and it also studies and researchs the new generation fiscal cash register on the base of the country's prescribe of the tax system.Firstly, the paper describes the fiscal cash register carefully, including: system summarize, requirement summarize, system requirement and so on. Secondly, it designeds the whole system consummately, including: system design, software and hardware designat, port design and so on. It also shows the software and hardware system's structure pictures. Thirdly, it describes the principle of every module in the system, on the base of it, the paper gives its own design, for some hardware ports, it also shows their device drivers and the flow charts. At last, the paper gives the application-program. Because the codes of the program are so long, it only describes the simple struct of the program.