Design of Driver of Linux Nand Flash Based on SEP0718

With the development of consumed electronic products,the consumers continuously increase the demand of storage capability of potable electronic products.As a mass storage device,though the hard disk can satisfy user's requirements,it is restricted to use in practical applications because of hard disk's large cubage and high power consumption.Nand Flash has the characteristics of small cubage,low power consumption,fast transmission speed and shakeable.As a result,Nand Flash is ready to become the main storage in potable electronic products.With increasement of the Nand Flash,Nand Flash has now been applied in most of the potable electronic products.Describe Nand Flash hardware features,and analyse the Linux MTD layer(Memory Technology Device) features.Based on embedded microprocessor chip SEP0718 researched and developed independently by Southeast University National ASIC Center,Nand Flash driven detailed is designed and achieved in the environment of Linux operating system,describe some of its function like reading,writing,wipe,and for driver of Nand Flash,gives under non-DMA and DMA results.