Abstract
Along with the electronic technology fast development, with the large scale integrated circuit technology development the miniature machine appears, which make the modern scientific research obtain great leap. Meanwhile the appearance of embedded controller technology has brought a new technological revolution in modern industry control field. The most obvious superiority in system composed of embedded controller is may be inserted to any miniature or small instruments and equipments. Along with the widely combination of embedded system and Internet, the complex application in mobile phone, PDA, router and modem etc put forward a higher demand on the performance of embedded processor, therefore developing 32-bit high performance processors will be a inevitable trend. This dissertation mainly use the ARM chip to design the FAT12 file system operation functions, these operation functions may be used in file management. In this system the Phillips ARM7 chip LPC2214 is used to design a embedded file system, which carry out the document management and various calling among different functions. These functions include formatting、opening、closing、reading、 writing、creating and so on. This dissertation mainly introduced the partial software design above mentioned.
Keywords: ARM System, Embedded System, File System
