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(笔记) (ARM) QQ2440 开发板改为 GT2440 (Linux) (开发板)

2024-07-10 21:03:06   221人阅读


QQ2440改 GT2440
1跟换Nand Flash
   将QQ2440的Nand Flash k9f1208u0b (64M)焊接取下来，换上k9f2g08u0a 或k9f2g08u0b (256M)
2.去掉QQ2440板上右边靠中间的电阻 NR5,不去掉无法从Nand Flash 启动
这里去掉电阻配置 Nand Flash Memory Configuration Table
对应的管脚 NCON0,      GPG13,    GPG14,    GPG15
                 高，           高，         高，          低

                 Advance    2Kbytes    5-Addr     8-bit bus with
3,在网上下载一个QQ2440.jflash的jlink下载的配置文件，将GT2440的u-boot.bin下载进去
4.对于lcd显示偏移的情况(4.3寸)，根据自己的情况修改
修改u-boot源码
/opt/GTStudio/GT2440/u-boot-1.1.6/include/configs/GTStudio.h

#elif(LCD_TFT == TX11D)#define    CONFIG_LCD_VBPD     3#define    CONFIG_LCD_VFPD     5#define    CONFIG_LCD_VSPW     5#define    CONFIG_LCD_HBPD     39#define    CONFIG_LCD_HFPD     5#define    CONFIG_LCD_HSPW     5#define    CONFIG_LCD_CLKVAL     4

Linux 源码修改

/opt/GTStudio/GT2440/linux-2.6.30.4/arch/arm/mach-s3c2440/mach-gt2440.c

#elif defined(CONFIG_FB_S3C24X0_TX480272).width     = 480,.height     = 272,.pixclock     = 40000, /* HCLK 100 MHz, divisor 1 */.setclkval     = 0x4,.xres     = 480,.yres     = 272,.bpp     = 16,.left_margin    = 5,    /* for HFPD*/.right_margin    = 43,    /* for HBPD*/.hsync_len    = 5,    /* for HSPW*/.upper_margin    = 5,    /* for VFPD*/.lower_margin    = 4,    /* for VBPD*/.vsync_len    = 5,    /* for VSPW*/

 


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