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          EEPW首頁 > 嵌入式系統(tǒng) > 設計應用 > uboot 下S3C6410 的LCD 顯示

          uboot 下S3C6410 的LCD 顯示

          作者: 時間:2016-11-11 來源:網絡 收藏
          cf_console.c中屬于框架,基本不用改動,添加lcd,主要是通過video_hw_init()來實現(xiàn)lcd控制器的初始化。
          具體工作:
          1、smdk6410的修改
          #if 1
          //enable LCD display
          #define CONFIG_CMD_BMP
          #define CONFIG_VIDEO
          #define CONFIG_VIDEO_S3C64X0
          #define CONFIG_VIDEO_LOGO //display Linux Logo in upper left corner
          #define VIDEO_FB_16BPP_WORD_SWAP //for BMP logo
          #define CONFIG_VIDEO_SW_CURSOR //Draws a cursor after the last character.No blinking is provided.
          //#define CONFIG_VIDEO_BMP_LOGO //use bmp_logo instead of linux_logo
          //#define CONFIG_CONSOLE_EXTRA_INFO
          //#define CONFIG_CONSOLE_CURSOR //on/off drawing cursor is done with delay loop in VIDEO_TSTC_FCT
          //#define CONFIG_CONSOLE_TIME
          #define CONFIG_CFB_CONSOLE
          #define CONFIG_SYS_CONSOLE_IS_IN_ENV
          //#define CFG_CONSOLE_INFO_QUIET
          //#define VIDEO_FB_LITTLE_ENDIAN
          #define CONFIG_SPLASH_SCREEN //enable splash screen support,implicitly enable U-Boot Bitmap Support.
          #define CONFIG_SYS_VIDEO_LOGO_MAX_SIZE (1024*768+1024+100) /* 100 = slack */
          #define CONFIG_VIDEO_BMP_GZIP //Gzip compressed BMP image support
          #define CONFIG_CMD_UNZIP
          #define LCD_VIDEO_ADDR 0x57a00000
          #define LCD_VIDEO_BACKGROUND
          #if defined(LCD_VIDEO_BACKGROUND)
          #define LCD_VIDEO_BACKGROUND_ADDR (0x57600000)
          #define LCD_VIDEO_BACKGROUND_LOADADDR (0x57500000)
          #define LCD_VIDEO_BACKGROUND_LOADSIZE (0x80000)
          #define LCD_VIDEO_BACKGROUND_ALPHA (0xa)
          #define LCD_VIDEO_BACKGROUND_IN_NAND
          //#define LCD_VIDEO_BACKGROUND_IN_MMC
          #define LCD_VIDEO_BACKGROUND_FLASH_ADDR (0x10000000)
          #endif
          #define CONFIG_SYS_VIDEO_VCLOCK_HZ (133000000)
          //RAM_TEXT = 0x57e00000
          /*for PC-keyboard*/
          #define VIDEO_KBD_INIT_FCT 0
          #define VIDEO_TSTC_FCT serial_tstc
          #define VIDEO_GETC_FCT serial_getc
          #endif /*enable LCD display*/
          #define CONFIG_EXTRA_ENV_SETTINGS //串口信息輸出到lcd上
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