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BitmapBoot Tool ( Trizeps II - V)

The BitmapBoot-Tool is used to create a splash-screen which is shown during device start.

The Windows CE OS-image can take the display-parameters from this splash-screen. This allows an easy change of the display, without the need to modify the Windows CE OS-image.

For Trizeps6 you do not need the BitmapBoot-Tool ( see Boot-Bitmap ( Trizeps VI)).

To create your own bootlogo, create a bitmap with 8Bpp color-depth. This picture must have a smaller or same resolution, than the display-size specified in the Display Definition File: eg. for tr4_svga 800×600; for tr4_vga 640×480.

open a cmd-line ( Start→Run or Start→Ausfuehren: cmd) on your Windows XP or Vista machine:

bitmapboot *.dis <your bitmap> <output file of bitmapboot>


bitmapboot tr4_svga.dis kkbooting8.bmp kkboot.tft

Put kkboot.tft on a SD-Card and enter the bootloader. On your Hyperterminal command-prompt enter:

boot mmc kkboot.tft

The picture is shown and you're asked if you want to save the picture.

Note: If the picture-size has changed from the previous-bootlogo, you must reinstall your Windows Embedded CE-Image.

BootBitmap CmdLine-Options

BitmapBoot.bat <DisplayDefinitionFile> <BitmapFile> <BootableOutputFile> [Options]


describes display-parameters.


any 256 color bitmap file (*.bmp) which fits to the display.


the output file which can be booted by bootloader.


These options may be used:

  • show_continue → shows the bootlogo and continues without storing it to flash.
  • burn_continue → stores the bootlogo to flash without showing it.
  • show_stop → shows the bootlogo without storing it to flash and halts the bootloader if a autoboot.00x -sequence is used.

On default, the bootlogo is shown and the user is asked through the bootloader-interpreter, if it should be stored to flash.

Display Definition File

The Display Definition File typically has the extension .dis and contains the display-parameters.
It is the same for Trizep2, Trizeps3 and Trizeps4.
Trizeps5 has some differences.

Field Description
Paramcnt Number of parameters. Currently fixed to 16 (0x10)
FBADR FrameBuffer-address. This is the address, where the DMA-descriptors and the framebuffer of the picture will be put. When using Windows CE as OS, use 0x80088000 for Trizeps5 and 0xA0088000 for all other Trizeps.
Bpp Bits-Per-Pixel. The bootloader always uses 8Bpp. You may use either 8 or 16(0x10). When using 16, it will be used by Windows CE
Use16BitPalette set to 1
CxScreen Horizontal resolution of the display
CyScreen Vertical resolution of the display
Control0 == LCCR0. See PXA2xx Developers Manual for details.
Control1 == LCCR1. See PXA2xx Developers Manual for details. The last 10 bit contains the horizontal resolution of the display. Leave it 0, because it is calculated from CxScreen
Control2 == LCCR2. See PXA2xx Developers Manual for details. The last 10 bit contains the veritcal resolution of the display. Leave it 0, because it is calculated from CyScreen
Control3 == LCCR3. See PXA2xx Developers Manual for details.
DataBits set to 0x10
 Controls behaviour:
 0x8000_0000  Override Registry and use BootBitmap-parameters for the display.
 0x4000_0000  Enable VNC-acceleration.
 0x0800_0000  Invert palette if using 8Bpp.
 0x0400_0000  Use Mono-palette for black&white screens.
 0x0300_0000  Enable Cache for framebuffer.
 0x000F_F000  GPIO-Number, if a gpio is used for backlight-control.
 0x0010_0000  Invert polarity of this backlight-gpio.
 0x0000_00FF  GPIO-Number, if a gpio is used to enable power to the display.
 0x0000_0100  Invert polarity of this power-gpio.
Brightness Default brightness-value to use.
Contrast Default contrast-value to use.
  0x0000_0000  Use EEPOT for contrast-control. 
               Use also if no other contrast-control is used.
  0x2000_0000  Use AD5242 for contrast-control.
  0x3000_0000  Use DS1050z for contrast-control.
  0x4000_0000  Use PWM for contrast-control.
  0xF000_0000  No contrast-control.
  0x0000_ff00  The contents of this field is determined by the previous option 
               ( AD5242, DS1050z: i2c-address, PWM: gpio)
  0x0000_0000  Use EEPOT for brightness-control. 
               Use also if no other brighntess-control is used.   
  0x0200_0000  Use AD5242 for brightness-control.
  0x0300_0000  Use DS1050z for brightness-control.
  0x0400_0000  Use PWM for brightness-control.
  0x0f00_0000  No brightness-control.
  0x00ff_0000  The contents of this field is determined by the previous option 
               ( AD5242, DS105z: i2c-address, PWM: gpio).
  0x0000_0002  Turn off backlight when brightness is set to minimum value.
  0x0000_0004  Don't turn off backlight when using slider of 
 BufferStrength of signal-lines:
  0x0000_00f0  0: don't change bufferstrength.
               1..7: PXA320: 8 is equal to bufferstrength 0. (only supported by bootloader)
               1..15: PXA270.
               PXA168 uses seperate BufferStrength-key.
UseEDTSSP Used for special smart-displays, which need additional initialization. i.e. through i2c or SPI
DisplayName Name of the display

Please note, that the order of the fields must be kept.
The field-name before the value is not interpreted by bitmapboot.
Features and options might be different on different Trizeps-modules; i.e. PWM is only supported for special pins.

Trizeps and Trizeps5 Differences

To port a .dis-file from Trizeps to Trizeps5, you need to modify following entries:

  • FBADR: Change from 0xa0088000 to 0x80088000.
  • Bufferstrength for Trizeps5 is set throug HAL reading MFPR Registry values
  • Control3: Change the least-significant-byte (LSB) of Control3 (Pixel-Clock-Divider).

The lcd-controller-clock-frequency is twice as big, as on the other Trizeps-modules (e.g. 208MHz instead of 104MHz).

On Trizeps:
Pixel-Clock-Frequency = 104MHz/(2*(PCDtr4+1))
On Trizeps5:
Pixel-Clock-Frequency = 208MHz/(2*(PCDtr5+1))
So you have to recalculate the Trizeps5-Pixel-Clock-Divider to be:
PCDtr5 = (2*(PCDtr4+1))-1


BitmapBoot Tool

BitmapBoot-Tool (incl. dis-files):


VGA (spark-board): tr4_vga.dis
SVGA (spark-board): tr4_svga.dis
EDT43 (uConXS): et043.dis
ATA070TN83 (iPAN7): at070tn83-i-pan7.dis
EDT ET070: tr4_et070.dis
lta065 (ConXS): tr5-_lta065a041f-16bpp.dis
SVGA (spark-board): tr5_svga.dis
WVGA (spark-board): tr5_wvga.dis
ATA070TN83 (iPAN7): tr5_at070tn83-i-pan7.dis
EDT ET070: tr5_et070.dis


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service/software/bootloader/bootpicture/bitmapboot.txt · Zuletzt geändert: 2017/06/20 15:20 von