工作和技术

crifan 17年前 (2008-04-01) 2146浏览 0评论

用busybox制作根文件系统和bootloader的参数解释【转】 今天终于把linux下的文件系统搞定了。好高兴，困扰我几天的问题有了小小的突破，特写BLOG留念！ 1,关键的是问题是要把bootloader要传递给Linux kernel的参...

crifan 17年前 (2008-04-01) 1878浏览 0评论

Table of contents I cannot mount JFFS2 and see "Magic bitmask 0x1985 not found" messages I am going to use JFFS...

crifan 17年前 (2008-04-01) 2943浏览 0评论

Cache Write Policy and the Dirty Bit In addition to caching reads from memory, the system is capable of caching writes to mem...

crifan 17年前 (2008-04-01) 1858浏览 0评论

Table of contents Is an MTD device a block device or a char device? What are the differences between flash devices and ha...

crifan 17年前 (2008-04-01) 1625浏览 0评论

#include <stdio.h>#include <fcntl.h>#include <string.h> #define BUFF_SIZE 1024#define SECTOR_SIZE 1024*170m...

crifan 17年前 (2008-03-31) 2750浏览 0评论

JFFS2 specific information JFFS2 Out of Band usage JFFS2 uses the default autoplacement scheme. The only JFFS2 specific usa...

crifan 17年前 (2008-03-31) 3878浏览 0评论

Brief Intro of Nand Flash NAND vs. NOR Beside the different silicon cell design, the most important difference between NAND ...

crifan 17年前 (2008-03-31) 4311浏览 0评论

XIP – eXecute In Place，中文常译为，就地执行。指代码可以在当前（存储器中）执行 关于Nor Flash的XIP : NAND and NOR and XIP "NOR的特点是芯片内执行(XIP, eXecu...

crifan 17年前 (2008-03-31) 2192浏览 0评论

eXecute In Place XIP eXecute In Place XIP (eXecute In Place ) is a useful option available with uClinux systems. Its main va...

crifan 17年前 (2008-03-31) 1717浏览 0评论

uboot用当时的数据算出来的ECC用的是不是bch， 计算出来的ECC是否正确 Uboot写入rootfs的时候， 把ECC放在哪里了 jffs2调用的是不是as352x_nand中的calculat_ecc和correct_ecc 是的话，cal...