Design And Implement Of The Fiscal Register Based On ARM And μClinux

Fiscal Cash Register as a "hub throat" of Electronic-Tax, is the most important revenue tools. As the important tools of tax-collection, its application and promotion is critical for the collection and check of revenue. The Fiscal Cash Register which we have developed conforms to the national standards. It has high performance and low cost, because it adopts the method of "S3C44B0X CPU and software" to implement the main peripherals.Firstly, this paper discusses the development condition of fiscal cash register on both of domestic and foreign markets and points out its insufficiencies. In accordance with national standards, this thesis has a detail design about the Needs analysis of the Fiscal Cash Register, the system platform (hardware platform and software platform), the establishment of development environment are described. In the design of hardware, the advantages of the ARM processor are introduced and the hardware platform has been designed based on the S3C44B0X chip.Secondly, this paper has a research and design about a Bootloader that supports SD card loading system mirror image and starts operating system in detail. In series of key technologies such as the Bootloader start, the interrupt processing, the hardware initialization as well as the address mapping and bootingμClinux kernel and so on have been given a detailed analysis.Finally, it has a reduction and board-level transplantation about the embeddedμClinux kernel, and has a modified about theμClinux kernel based on the hardware platform, and has a detailed design about the board-level transplants, and the configuration, modify, compile, download of theμClinux kernel have been studied.