Ò׽ؽØÍ¼Èí¼þ¡¢µ¥Îļþ¡¢Ãâ°²×°¡¢´¿ÂÌÉ«¡¢½ö160KB

Linux NAND FLASHÇý¶¯´úÂë·ÖÎö

FLASHÇý¶¯ÔÚǶÈëʽϵͳÖÐÓÐמÙ×ãÇáÖØµÄλÖ㬶øÄ¿Ç°Êг¡ÉÏNAND FLASHµÄ¼Û¸ñÓÖÒª±ãÒËÓëNOR
FLASH,Ëæ×ÅÔ½À´Ô½¶àµÄƽ̨֧³Ö´ÓNAND FLASHÖÐÆô¶¯£¬ÕÆÎÕNAND
flashµÄÇý¶¯±àдÓÐ×ÅÖØÒªµÄÏÖʵÒâÒ壬ÓÉÓÚÄÚºËÒѾ­Íê³ÉÁ˴󲿷ֵŤ×÷£¬Êµ¼Ê¹¤×÷Öд󲿷ֹ¤³Ìʦ¶ÔNAND
FLASHÇý¶¯Ö»ÊǼòµ¥µÄÐ޸ģ¬¶ÔÆä¹¤×÷Ô­Àí²¢²»Ì«Çå³þ£¬ÏÂÃæÎÒÃÇÀ´·ÖÎöÒ»ÏÂNAND FLASHµÄ´úÂëÁ÷³Ì£¬´ÓÖÐÌå»á¿éÉ豸µÄ´úÂëÖ®ÃÀ¡£
ÔÚѧϰNAND FLASHÇý¶¯Ö®Ç°£¬ÎÒÃÇÐèÒª¶Ô¿éÉ豸ÖÐÏÂÃæµÄÖØÒª2µãÓиöÈÏʶ£º
1.gendisk: ÃèÊö¿éÉ豸ʵÌå(Ò»Õû¸önandflashоƬ)µÄ½á¹¹Ìå
        Õû¸ö¿éÉ豸µÄ×¢²á¹ý³Ì¶¼ÊÇÎ§ÈÆgendiskÀ´¿ªÕ¹µÄ
2. add_disk() //
½«Ò»¸ö·ÖÇøÐÅÏ¢(Èç/dev/mtdblock3)×¢²áµ½ÄÚºËÁбíÖÐ
ÏÂÃæÎÒÃÇÀ´·ÖÎö¾ßÌåµÄÇý¶¯£º
Ò»¡¢s3c2410nandflash¿ØÖÆÆ÷³õʼ»¯²½Öè:
        s3c2410_nand_init(&s3c2410_nand_driver)
        ->
driver_register->bus_add_driver()->driver_attach->bus_for_each_dev(__driver_attach)->driver_probe_device()->dev->probe()
[×îºóÕâ¸öº¯ÊýʵÖÊÊÇs3c2410_nand_probe()]
        -> s3c2410_nand_probe()
                        -> s3c24xx_nand_probe()
                                ->
s3c2410_nand_inithw() // ³õʼ»¯nandflash¿ØÖÆÆ÷
                                        ->
s3c2410_nand_init_chip()// ³õʼ»¯s3c2410 nandflashÇý¶¯×îµ×²ãµÄ·ÃÎÊ¿ØÖƺ¯Êý
   &nb


Ïà¹ØÎĵµ£º

ubuntu 9.10 ½â¾ö flashÖÖµÄÎÄ×ÖÂÒÂë

×î½ü·¢ÏÖÔÚgoogle»òÕßbaiduÌýmp3µÄʱºò.flashÖеÄÎÄ×ÖÏÔʾµÄÈ«²¿¶¼ÊÇÂÒÂë...ºÜÄÑ¿´! ËìgoogleÁËÒ»ÏÂ. ÕÒµ½Á˽â¾ö·½·¨. ·ÖÏíÒ»ÏÂ:
sudo vi /etc/fonts/conf.d/49-sansserif.conf 
<?xml version="1.0"?>
<!DOCTYPE fontconfig SYSTEM "fonts.dtd">
<fontconfig>
<!--
If the font still h ......

LinuxÏÂʱÖÓͬ²½

ÏÂÊöÉèÖÃÒÔʱÖÓÔ´·þÎñÆ÷IPµØÖ·Îª192.168.0.1ΪÀý¡£¿ÉÒÔÃüÁîntpstat ºÍ ntpq -p ²é¿´±¾»úNTPD·þÎñ״̬¡£ÅäÖÃÍê³Éºó£¬¾ùÐèÒªÖØÐÂÆô¶¯NTPD·þÎñ service ntpd restart
   ¡¾·þÎñÆ÷¶ËÉèÖá¿
   1.½«/etc/ϵÄÎļþntp.confÐÞ¸ÄÈçÏ£º
   server 127.127.1.0 minpoll 4 maxpoll 5 ......

Linux ×Ö·ûÉ豸Çý¶¯³ÌÐòµÄ±àд¿ò¼Ü

Ò»¡¢Linux device driver µÄ¸ÅÄî

ϵͳµ÷ÓÃÊDzÙ×÷ϵͳÄں˺ÍÓ¦ÓóÌÐòÖ®¼äµÄ½Ó¿Ú£¬É豸Çý¶¯³ÌÐòÊDzÙ×÷ϵͳÄں˺ͻúÆ÷Ó²¼þÖ®¼äµÄ½Ó¿Ú¡£É豸Çý¶¯³ÌÐòΪӦÓóÌÐòÆÁ±ÎÁËÓ²¼þµÄϸ½Ú£¬ÕâÑùÔÚÓ¦ÓóÌ
Ðò¿´À´£¬Ó²¼þÉ豸ֻÊÇÒ»¸öÉ豸Îļþ£¬Ó¦ÓóÌÐò¿ÉÒÔÏó²Ù×÷ÆÕͨÎļþÒ»Ñù¶ÔÓ²¼þÉ豸½øÐвÙ×÷¡£Éè±¸Ç ......

Linux PCIÇý¶¯µÄ±àд

PCIÊÇÍâΧÉ豸»¥ÁªµÄ¼ò³Æ(Peripheral Component
Interconnect)µÄ¼ò³Æ£¬×÷ΪһÖÖͨÓõÄ×ÜÏß½Ó¿Ú±ê×¼£¬ËûÔÚ¼ÆËã»úϵͳÖеõ½Á˹㷺µÄʹÓá£PCIµÄËÙ¶ÈÄܹ»´ïµ½132M/s¡£ÔÚÕâÀï¼òµ¥µÄ½é
ÉÜһϠlinux ÏÂPCIÇý¶¯µÄʵÏÖ¡£
ÔÚ±àдһ¸öPCIÇý¶¯µÄʱºòÎÒÃÇÏȵÃÈ·¶¨ÏµÍ³ÖÐÊÇ·ñÓÐÎÒÃǵÄÉ豸¡£ÎÒÃÇ¿ÉÒÔͨ¹ýlspci
²é¿´PCIÉ豸¡£
[roo ......
© 2009 ej38.com All Rights Reserved. ¹ØÓÚE½¡ÍøÁªÏµÎÒÃÇ | Õ¾µãµØÍ¼ | ¸ÓICP±¸09004571ºÅ