TFFS文件系统为各种FLASH存储器提供块设备接口,是M-System公司为Vxworks操作系统定制实现的。原先的TFFS的格式化在FTL层是按照FLASH的块进行格式化,由于FLASH的块数比较多,故格式化的时间比较长;快速格式化的原理是按照FLASH的片,使用整片擦除函数,提高FTL格式化的速度。测试结果表明,该方法和传统方法相比能大大提高FLASH格式化的速度。

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VxWorks操作系统中TFFS快速格式化方法的实现

Date 2020-05-04
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TFFS ( Ture Flash File System) provides device interface for all kinds of flash memory,which is customized for Vxworks operating by M - system company. Traditional TFFS formatting is formatted in accordance with FLASH blocks in FTL ( Flash Translation Layer) . More formatting time is spent,because of numerous FLASH blocks. While the principle of fast formatting is according to flash chip,full - chip erasing function is used to improve the speed of FTL format.