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SD card storage program to generate FAT32 file sys
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Application background Information storage technology has entered the stage of rapid development, information storage technology has a special status in the underwater acoustics. Underwater acoustics is a subject which needs a lot of information. Storage system to achieve the power consumption as low as possible, the volume is smaller, so that it is conducive to the storage system in the water for a long time to work reliably. It is because of the above reasons, choose MSP430 monolithic as the main control device, SD card as the storage medium. Storage function Key Technology MSP430F5529 as the main control chip SD card as a storage medium in the SD card to generate the FAT32 file system
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Fat file system generation
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Application background The method of storing and managing data in different ways is the file system. The purpose of the file system is to use and find the data and the data can be stored in the storage medium for a long time.At present, the popular Windows operating system, the file system is often used in the following format: FAT32, NTFS, FAT16, and so on. FAT16 has been phased out. Key Technology Windows95 supports FAT16 format, using 16 bit disk partition table, FAT16 disk capacity can reach 2GB. Disk read speed also has a greater improvement than FAT12. FAT16 is characterized by a very good compatibility, but the shortcomings of the FAT16 is also more obvious, low disk utilizationWindows97 support FAT32 format, using FAT32 than FAT16 disk rate greatly enhance. Limit of disk capacity reached 2000G. One of the major drawbacks of FAT32 is that the compatibility is not good, and the disk operating rate is relatively FAT16.Windows; NT suppo
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