Modifying the Intel DBPXA250 Development Platform Switches and Jumpers

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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