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

ǶÈëʽLinuxµÄLCDÇý¶¯£¨FB @ s3c2410£©

CPU : ARM9 s3c2410 
LCD : ¹æ¸ñ²»Ã÷£¨Õâ¸öºÜÎÞÄΣ¬µ«ÊÇÎÒËùÖªµÀµÄÖ»ÓÐÒ»¸ö·Ö±æÂÊ£©
Ô´ÂëÐ޸ģº
/linux-2.6.30.4/arch/arm/mach-s3c2410/mach-smdk2410.c
        ÔÚÕâ¸öÎļþÖмÓÈëframebufferµÄ³õʼ»¯Êý¾Ý½á¹¹£¨¾ßÌåÊý¾Ý²ÎÕÕLCD¼¼ÊõÊֲᣩÈçÏ£º
#include <mach/fb.h> // added by B.Zhou for the LCD driver
/* The info of LCD driver start */
static struct s3c2410fb_display smdk2410_lcd_cfg __initdata = {
    .lcdcon5    = S3C2410_LCDCON5_FRM565 |
              S3C2410_LCDCON5_INVVLINE |
              S3C2410_LCDCON5_INVVFRAME |
              S3C2410_LCDCON5_PWREN |
              S3C2410_LCDCON5_HWSWP,
    .type        = S3C2410_LCDCON1_TFT,
    .width        = 800,
    .height        = 480,
    .pixclock    = 174757, //40000, /* HCLK/4 */
    .xres        = 800,
    .yres        = 480,
    .bpp        = 16,
    .left_margin    = 7,
    .right_margin    = 3,
    .hsync_len    = 5,
    .upper_margin    = 1,
    .lower_margin    = 3,
    .vsync_len    = 1,
};
static struct s3c2410fb_mach_info smdk2410_fb_info __initdata = {
    .displays        = &smdk2410_lcd_cfg,
    .num_displays        = 1,
    .default_dis


Ïà¹ØÎĵµ£º

LinuxÏ»ñÈ¡»úÆ÷ÐÔÄÜ

×¢Òâ¸Ã·½·¨ÊǼÆËãµÄ×Ô¿ª»úÒÔÀ´µÄʹÓÃÂÊ£¬ÊÇÒ»¸öÈ«¾ÖµÄ£¬Ã»¶à´óÒâÒ壬ÿһ´Î¼ÆËãCPUÀûÓÃÂÊ = 100 *£¨user + nice + system£©/£¨user + nice + system + idle£© ÕâÀïÒª¼õÈ¥Ò»¶¨Ê±¼äÒÔǰ·½¿É¼ÆËã³öÕâÒ»¶Îʱ¼äÄÚµÄcpuʹÓÃÂÊ¡£ "procÎļþϵͳÊÇÒ»¸öαÎļþϵͳ£¬ËüÖ»´æÔÚÄÚ´æµ±ÖУ¬¶ø²»Õ¼ÓÃÍâ´æ¿Õ¼ä¡£ËüÒÔÎļþϵͳµÄ·½Ê½Îª·ÃÎÊÏµÍ ......

linuxÖеÄoutb¡¢outw¡¢inb¡¢inw

ÔÚlinuxµÄÇý¶¯³ÌÐòÖУ¬¶¼»áʹÓôóÁ¿µÄoutb¡¢outw¡¢inb¡¢inwµÈµÈºêÀ´·ÃÎÊÓ²¼þ»ò¼Ä´æÆ÷¡£ÕâЩºêµÄ¶¨Òå¶¼ÔÚÏàÓ¦´¦ÀíÆ÷ÌåϵϵÄinclude\asmĿ¼ÏµÄio.hÖж¨Òå¡£×·¾¿ÏÂÈ¥£¬ÕâЩºê×îÖÕ¾ÍÊÇÒ»¸övolatile±äÁ¿µÄµÄ¸³Öµ£º
      #define __arch_putb(v,a)      (*(volatile unsi ......

RedHat Linux³£¼ûµÄÈÕÖ¾ÎļþºÍ³£ÓÃÃüÁî


³É¹¦µØ¹ÜÀíÈκÎϵͳµÄ¹Ø¼üÖ®Ò»£¬ÊÇÒªÖªµÀϵͳÖÐÕýÔÚ·¢ÉúʲôÊ¡£Linux ÖÐÌṩÁËÒì³£ÈÕÖ¾£¬²¢ÇÒÈÕÖ¾µÄϸ½ÚÊÇ¿ÉÅäÖõġ£Linux ÈÕÖ¾¶¼ÒÔÃ÷ÎÄÐÎʽ ´æ´¢£¬ËùÒÔÓû§²»ÐèÒªÌØÊâµÄ¹¤¾ß¾Í¿ÉÒÔËÑË÷ºÍÔĶÁËüÃÇ¡£»¹¿ÉÒÔ±àд½Å±¾£¬À´É¨ÃèÕâЩÈÕÖ¾£¬²¢»ùÓÚËüÃǵÄÄÚÈÝÈ¥×Ô¶¯Ö´ÐÐijЩ¹¦ÄÜ¡£Linux ÈÕÖ¾´æ´¢ÔÚ /var/log Ŀ¼ÖС£ÕâÀïÓм¸¸öÓ ......

LinuxϵͳԭÀí֪ʶ ½ø³ÌÇл»µÄ¸ÅÄî½éÉÜ

Ò»¡¢tast_struct½á¹¹
ËüÊÇÒ»¸öÊý¾Ý½á¹¹£¬¿ÉÒÔ˵£¬Ëü´ú±íÁËÒ»¸ö½ø³Ì¡£ËüÓкܶà×ֶΣ¬´óÌåÓÐһϼ¸ÖÖ£º
±êʶºÅ£º½ø³Ì±êʶ¡¢Óû§±êʶ¡¢×é±êʶ¡£
״̬£º LinuxµÄ½ø³ÌµÄËÄÖÖ»ù±¾×´Ì¬
µ÷¶ÈÐÅÏ¢£ºÓÅÏȼ¶¡¢Ê±¼äƬµÈ
½ø³ÌÁ´ÐÅÏ¢£º¸¸½ø³Ì¡¢×Ó½ø³ÌµÄÖ¸Õë
ÎļþÐÅÏ¢£º´ò¿ªÎļþ¡¢ÐéÄâÎļþϵͳ
ÉÏÏÂÎÄÐÅÏ¢£º½ø³ÌµÄÔËÐл·¾³ ......

Linuxϵͳѧϰ·½·¨ÂÛ

Ê×ÏÈ,ÎÒÏëÒýÓÃһϱðÈË˵¹ýµÄÒ»¾ä»°:³ý·ÇÔÚ¹ýÈ¥µÄÊ®ÄêÄãÒ»Ö±Éú»îÔÚɽ¶´Àï,·ñÔòÄãÒ»¶¨Ìý˵¹ýlinux.
ÊǵÄ,ÏÖÔÚÌý˵¹ýlinux,
»áÒ»µãlinux»ù±¾²Ù×÷µÄÈ˶àÈçţë,È»¶øÕæÕýÄÜÓÃlinux×öÒ»µãÊÂÇéµÄÈ·ÉÙÖ®ÓÖÉÙ,Õâ¾ÍÔì³ÉÁËÏÖÔÚµÄ×´¿ö:¸÷´ó
linuxÂÛ̳ʮ·ÖÈÈÄÖ,µ«ÎÒ¹úlinuxÈ˲ÄÈ´»¹Ê®·Ö½ôȱ.µ½µ×ÊÇʲôԭÒòÔì³ÉÁËÕâÑùµÄ×´¿ö? ¾ÀÆäÔ ......
© 2009 ej38.com All Rights Reserved. ¹ØÓÚE½¡ÍøÁªÏµÎÒÃÇ | Õ¾µãµØÍ¼ | ¸ÓICP±¸09004571ºÅ