Toradex 公司的 colibri PXA270 300 310 320采用的是eboot加载一个特殊的图形文件,这个文件是使用一个专用工具和256色的图片文件生成。这个文件可以在开机以后使用Splashscrean程序很方便的替换。
Colibri PXA270 300 310 320 bootloader (eboot)介绍
用于colibri PXA270 300 310 320的 bootloader(eboot)功能比较完善,可以访问到芯片的主要硬件资源,
例如,GPIO的初始化设置、MAC设置、IP设置、启动选项、串口、FLASH空间的分配、CPU的频率设置、debug
信息输出、启动画面和版本信息设置等,当然最基本的内核下载和文件维护功能也在其中,为客户订制系统,
主要指WINCE提供了很大的灵活性。
Toradex Windows CE Bootloader 3.2 for Colibri Built Jul 23 2008
Press [SPACE] to enter Bootloader Menu
BootLoader Configuration:
C) Clear Flash Registry
X) Enter CommandPrompt Mode
D) Download image to RAM now
F) Download image to FLASH now
L) Launch existing flash resident image now
替换开机画面的设置如下:
>setconfig ss
ss.fileaddr: 0x00000000 (FlashAddress with SplashScreen Data)
ss.filesize: 0 (Size of SplashScreen Data)
ss.enable: 1 (Enable SplashScreen)
ss.res: 0x00000000 (Reserved Flags)
ss.width: 640 (Display Width)
ss.height: 480 (Display Height)
ss.bpp: 8 (BitsPerPixel)
ss.ldds: 18 (LCD Lines Used)
ss.type: 1 (Display Type (0=Passive, 1=Active))
ss.color: 1 (0=Mono, 1=Color)
ss.dual: 0 (0=SinglePanel, 1=DualPanel)
ss.overlay: 0 (Overlay Enable)
ss.dpc: 0 (Double Pixel Clock)
ss.pcp: 0 (Pixel Clock Polarity)
ss.oep: 0 (Output Enable Polarity)
ss.hsp: 0 (Horizontal Sync Polarity)
ss.vsp: 1 (Vertical Sync Polarity)
ss.bs: 5 (LCD Buffer Strength)
ss.pclk: 25000000 (PixelClock (in Hz))
ss.hsw: 64 (Horizontal Sync Width)
ss.vsw: 2 (Vertical Sync Width)
ss.blw: 48 (Begin of Line Width)
ss.elw: 48 (End of Line Width)
ss.bfw: 37 (Begin of Frame Width)
ss.efw: 17 (End of Frame Width)
ss.acb: 256 (AC Bias Frequency)
ss.disp_gpio: 81 (Display On/Off Gpio)
ss.bl_gpio: 81 (BackLight On/Off Gpio)
ss.dispondelay: 0 (Display On Delay (ms))
ss.disp_pol: 1 (Display On/Off polarity)
ss.bl_pol: 1 (BackLight On/Off polarity)
ss.pcddiv: 1 (Enable Pixel Clock PreDivider)