The Research On Some Problem Of An Fiscal Cash Registers Embedded System's Structure

Currently the State Administration of Taxation and Regional Taxation Departments energetically popularize Fiscal Cash Registers for strengthening the function of taxation administration and preventing tax evasion. Anticipating for the coming 5 to 10 years, the Fiscal Cash Register will soon be widely available, thus the industry of Fiscal Cash Register itself will become a big potential market accordingly. However, currently all the widely used low-end Fiscal Cash Registers are relying on the 8 bit MCU as core & mature technology. And the application of new technology of 32 bit Embedded processor has not yet been mature. The following text will take the ARM7 processor as an example, to study a new Embedded Fiscal cash register's systematic structure by analyzing the composition of software and hardware of 32 bit Embedded system. An entire Embedded System's structure includes hardware, software and the functions of how they can work harmoniously with each other to complete related tasks accordingly.Firstly let's look back to the Embedded System and Fiscal Cash Register's history, current status, relevant technique and functional requirements; then I'll introduce the hardware of Embedded system, analysis and contrast its varies aspects, my purpose is to create an appropriate Embedded hardware structure for the Fiscal Cash Register; later we will discuss its software structure, and then give a detail description for different levels of designed structure. The next, we will discuss the subjects of Embedded operation system and flash memory file system(innovation) in turn. Lastly, we will discuss the reliable design and introduce the development process.Fiscal cash register system structure is a typical Embedded system's structure, the entire technique structure and research process is quite representative, which owns the most immediate and realistic meaning to the taxation administration field. Meanwhile the Embedded structure technology of Fiscal Cash Register would also be applied into other fields or other kind of products.