Modifying the Intel DBPXA250 Development Platform Switches and Jumpers

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You need to modify the switches and jumpers on the Intel DBPXA250 Development Platform in order to write to flash memory and to determine whether to boot in Run mode or Turbo mode.

To modify the Intel DBPXA250 development platform switches and jumpers

  1. Set the baseboard switches as shown in the following table. The Dot setting means that the hole on the white plastic switch is visible, there is also a dot silk-screened on the board.

    Note   The switch settings are dependent on the version of the CPU, board, and BSP. The following settings are for the Intel DBPXA250 BSP in Windows CE .NET 4.2 running Rev. C0/C1 Cotulla on a Rev. F daughter card.

    SDCLK[1] = MemClk

    MemClk = 99.53 MHz

    Run Mode = 2*MemClk

    Turbo Mode = 2*Run Mode

    Mode: Run

    Switch Setting
    S1 No dot
    S2 Dot
    S3 No dot
    S4 No dot
    S5 Dot
    S6 Dot
    S7 Dot
    S8 Dot
    S9 Dot
    S10 Dot
    S11 No dot
    S12 Dot
    S13 Dot
    S14 Depends on the flash memory bank being used, and on the flash memory write access requirements for your board
    S15 Depends on the flash memory bank being used, and on the flash memory write access requirements for your board
    S16 Not applicable, this is the power switch
    S17 Dot
    S18 Dot
    S19 Dot
    S20 Dot
    S21 Dot
    S22 Dot
    S23 Dot
    S24 No dot
    S25 1
    S26 4

    Note   The switch settings are dependent on the version of the CPU, board, and BSP. The following settings are for the revision B1/B2 silicon in a Rev. C daughter card for the Intel DBPXA250 BSP in Windows CE .NET 4.1.

    Switch Setting
    S1 No dot
    S2 Dot
    S3 No dot
    S4 No dot
    S5 Dot
    S6 Dot
    S7 Dot
    S8 Dot
    S9 Dot
    S10 Dot
    S11 No dot
    S12 Dot
    S13 Dot
    S14 Dot
    S15 Dot
    S16 Not applicable, this is the power switch
    S17 Dot
    S18 Dot
    S19 Dot
    S20 Dot
    S21 Dot
    S22 Dot
    S23 See the Intel platform documentation for the correct setting for your board
    S24 See the Intel platform documentation for the correct setting for your board

    Note   XScale resumes using GPIO switch S12 on the baseboard.

  2. Set the switch on the daughter card as shown in the following table.

    Note   The switch settings are dependent on the version of the CPU, board, and BSP. The following settings are for the Intel DBPXA250 BSP in Windows CE .NET 4.2.

    Switch Setting
    S1 - S5 No dot
    S6 2

    Note   The switch settings are dependent on the version of the CPU, board, and BSP. The following settings are for the Intel DBPXA250 BSP in Windows CE .NET 4.1.

    Switch Setting
    S1 No dot

    Rotary Switch S25 changes the SDCLK[1] frequency. See the Intel platform documentation for the correct setting for your board.

    Dip Switch S24 controls booting in Run or Turbo mode. See the Intel platform documentation for the correct setting for your board.

See Also

How to Use the BSP for the Intel XScale DBPXA250 Development Platform | Setting up the Intel DBPXA250 Development Platform Hardware

Last updated on Wednesday, April 13, 2005

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