target.ref

该源码为mpc8248处理器的BSP

\" ads827x/target.nr - Motorola MPC827XADS target specific documentation
\"
\" Copyright 1984-2003 Wind River Systems, Inc.
\"
\" modification history
\" --------------------
\" 01a,18dec03,dtr  Adapted from ADS826x BSP target.nr
\"
\TITLE ads827x - Motorola MPC827XADS

NAME
`Motorola ADS827X - HIP7'

INTRODUCTION
This reference entry provides board-specific information necessary to run
VxWorks for the ads8272 BSP.

The BSP will work with the rev PROTOTYPE of the ADS8272 board.

Board Switch Settings
The board must have the switch and jumpers set to appropriate values before
software can be loaded into the memory, or before flash memory can be programmed
as described below.

   1. Setting the board Jumpers & Switches:
   In order to get the board running with the default configuration, the
   switches can be set as follows:

   NOTE:  The MODCK and MODCKH switches affect the hard reset configuration word
          that the processor reads during hard reset time.  The bsp reads internal
          SIU registers and obtains all the necessary pll multiplier and divider
          values to self configure the clock, CPM and baudrate clocks.  The following
          settings for MODCK and MODCKH are the default values as specified in
          the board manual.  The user is free to pick and choose any acceptable
          combination of these values that will allow the core frequencies to not
          exceed the allowable ranges as described in the MCP8260 manual.

\ts
  Dip SW1 | Dip SW2 |  Dip SW4 | 
-  |  |  |  |  |  |  |  | 
  SWOPT0 ON | Reserved ON | MODCKH0 OFF | 
  SWOPT1 ON | PCI DLL OFF | MODCKH1 ON | 
  SWOPT2 ON | PCI Arbiter ON | MODCKH2 OFF | 
  Reserved ON | BOOT SOURCE ON | MODCKH3 ON | 
   |  |  | PCIMODCK ON | 
   |  |  | MODCK1 ON | 
   |  |  | MODCK2 OFF | 
 |  |  | MODCK3 OFF | 

\te

        Jumper JP9 2-3  BCSR is hard reset word source (factory default)

BOOT ROMS
No VxWorks Boot ROM is provided with this BSP release. Nevertheless VxWorks
boot code is working if downloaded into the SIMM Flash ROM.

VxWorks boot code can be programmed in to Flash using one of the following
methods:

\sh 

\sh Using visionProbe with visionClick or WIND POWER IDE
1. Setting the board Jumpers & Switches:
   In order to get the board running with the default configuration, the
   switches need to be set as follows:

2. Creating a bootrom_uncmp.hex:
   2.1 Launch Tornado II, go to the "Build" menu and choose the option
       "Build Boot ROM...".
   2.2 The "Build Boot ROM" window will popup,
       in the "Select a BSP:" column choose the "ads827x", and
       in the "Select an Image to build:" column, choose
       "bootrom_uncmp.hex" and compiler of choice, and press the "OK"
       button.
   2.3 Once the build process finish successfully (You will see "Done"
       in the "Build window" without error), you will find the file
       "bootrom_uncmp.hex" in the BSP directory
       "$(WIND_BASE)/target/config/ads827x".

3. Programming bootrom_uncmp to the MPC8272ADS FLASH:
   Support for Hip 7 part is available in visionClick 7.11.10 and also in WIND POWER IDE 1.2 
   3.1 Using visionCLICK:

   3.1.1 Connect the JTAG interface cable from the visionPROBE II or
         visionICE II into the MPC8272ADS board JTAG (P21 The
         JTAG/COP Port) connector, and power it on.

         Once all the connections have been made, power up the
         MPC8272ADS board and start visionCLICK on the host.
	
   3.1.2 Configure the visionCLICK project:
         The "Welcome To visionCLICK" window will appear.  In this
         window press on the "Configure" button, this will invoke
         the "PROJECTS/LOAD" window.  In this window press on
         the '+' left of the "[e-mail]"
         project to expand the project which will show you the
         current project configuration.

         Point with the mouse cursor on the "Microprocessors" option
         and right-click to choose "PowerPC->MPC82xx->MPC8275"

         Verify that the "Target Control" option points to
         visionPROBE for visionPROBE II, or visionICE for
         visionICE II.

         Switch to the "Communications" TAB and verify that the
         "Normal Port/Rate" & "Download Port/Rate" is set to the
         correct LPT port if you are using visionPROBE II or enter
         the emulator IP address if you are using visionICE

         Save the project by clicking the "Save" button at the
         bottom of the window. Click the "Activate" button to send
         the project configuration to the attached hardware
         debugger.

   3.1.3 Program visionPROBE II / visionICE II with the proper
         register setting for the MPC8272ADS board:
	 The register file is delivered for this board with the BSP.

         Go to the "Tools" menu and select the "Log Output/Playback
         Scripts" option. The "Record / Playback" dialog box will
         popup.  Go to the "Playback Commands From File"
         group and click the "Browse" button.  Navigate to the
         location of the register file: "ads8272.vsh".  After
         choosing the register file press on the "Open" button to
         confirm the selected reg file.  This will return you back
     	 to the "Record / Playback" dialog box.  Click the "Start"
	 button located in the same group.  In the "Terminal" window
	 you can see that visionCLICK is running the script.
	 When the script is finished running, you will get
	 back the ">BKM>" or the ">ERR>" prompt.

   3.1.4 Get into Background Mode:
         At the "Terminal" window, execute the "IN" command to reset
         the board and initialize it with the register settings.

	 >ERR>IN
	 ***********************************************************
	 VisionICE II Initialization Sequence.  Copyright WIND RIVER
	 Corp. 2002
	 ***********************************************************
	 Support Expires..... 1/12/03 Target Processor..... MPC8275
	 VisionICE II             Group ID#= 0
	 VisionICE II    Serial#= N2201100    Firmware=vn2.0a
	 Type CF for a Menu of Configuration Options Using
	 Front PANEL as BDM source
	 Initializing Background Debug Mode..............Successful
	 >BKM>

	 If initialize properly, you should see >BKM> prompt at the
	 terminal window as shown above.

	 Ensure that the register file have been loaded to both
	 the emulator and the target.  Verfiy the values for "OR0",
	 "BR0", "OR2" and "BR2" shown in the Register window under
	 "MEMC" group matches the target.  To find out a register
	 value in the target, in "Terminal" windows, type "DR
	 name_of_register".  For e.g.

	 >BKM>DR OR0
			
	 The proper values are:
		OR0 = FF800876 
		BR0 = FF801801  
		OR1 = FFFF8010 
		BR1 = 04501801 
		OR2 = FF002CC0 
		BR2 = 00000041 

    3.1.5 Setting the Flash Chip Select:
         3.1.5.1 Once the ">BKM>" prompt appears we need to verify
          	 that the Flash chip select configuration is
             	 correct. To do this, type "CS" at the >BKM>
		 prompt in the "Terminal" window and press Enter.
             	 The first line ("CS0") is for the Flash chip
             	 select.  Under the "PS" (for Port Size) column for
             	 CS0, check that the number is "32".

		 If configured properly, goto Section 3.1.6.
		 If not configured properly, follow the steps below
		 to change it:

         3.1.5.2 Type "CS CS0" in the "Terminal" window and press
                 Enter.

                 >BKM>CS CS0

         3.1.5.3 Press enter until you get the following line:

                 (0-3) = 64, 8, 16, 32 bits  |  Port Size=32 Bits >

		 Enter 3 for "32" bits and keep pressing Enter until
                 you get to the ">BKM>" prompt again.

         3.1.5.4 Once the prompt appears, reset the board and the
        	 emulator with the following command:

                 >BKM>IN

                 After you get the ">BKM>" prompt, continue with the
                 instructions in the next section.

     3.1.6 Converting bootrom_uncmp.hex to bootrom_uncmp.bin:
          3.1.6.1 In visionCLICK, choose "Convert Object Modules"
              	  from the "Tools" menu.  The "CONVERT BINARY AND
              	  SYMBOL OBJs" window will appear.  Go to the
             	  "Select Input Object Module To Convert"
                  group and navigate to the file "bootrom_uncmp.hex"
                  located in "$(WIND_BASE)/target/config/ads827x

          3.1.6.2 In the group "Binary Downloadable Objects Modules"
              	  check the "Create Flat BIN File For Flash
              	  Programming".  "In Range Of 0x" edit box, enter
              	  "0" for the start address, and in the "To 0x" edit
              	  box, enter "FFFFFFFF".

          3.1.6.3 Make sure that none of the other check boxes are
                  checked.  Press the "Convert" button. Close the
                  terminal window when the conversion completes.

     3.1.7 Programming the MPC8272 Flash:
           In visionCLICK, select "Program Flash Devices" from the
           Tools pull-down menu and this will invoke the "TF FLASH
           PROGRAMMING" window.
          3.1.7.1 Click the "Select" in the "Flash Card or PC Host
            	  File Name and Path" group.  The "CHOOSE A FILE FROM
             	  HOST PC" window will appear.  In the edit box enter
             	  the full path of the file "bootrom_uncmp.bin", or
             	  use the "<--Browse" button to navigate to the file.

                  Go to the "+/- Bias" group and enter "FFF00000" in
             	  the edit box. Click the "OK" button. This will
             	  bring you back to the "TF FLASH PROGRAMMING"
             	  window.

           3.1.7.2 In the "Programming Algorithm" group, click the
	           "Select" button, and select the following Flash
		   devices:

		   "Intel 28F016/16S (2048 x 8) 4 Devices"

           3.1.7.3 Set the base address of the Flash to "FFF00000",
	           check the "Erase All" radio button.
		
		   Set the start address of "Available RAM Workspace"
		   to "00005000" with the "Bytes Of Target RAM Required"
		   set to "5000".

           3.1.7.4 Press the "Erase and Program" button.

           3.1.7.5 Now the Flash memory is programmed with the new
                   boot program.



\sh Jumpers on PROTOTYPE board revision


The baud rate generator assumes a 100 MHz system clock and a
CPM multiplication factor of 2. Although the PROTOTYPE board
supports reading the Hard Reset Configuration Word from Flash
or from the BCSR, the currently shipping PROTOTYPE Board has a
processor XPC8260 rev. 0.2, which does not support reading
the Flash at Power-on or Hard reset and so must be set to
use BCSR. 

FEATURES

\sh Supported Features (PROTOTYPE board revisions)

SCC1 and SCC4 as a UART

FCC1 FCC2 as an Ethernet device supporting 10BaseT and 100BaseT protocol

Interrupt Controller

System Clock

Baud Rate Generators as required for SCC1 and SCC4

64MB on board SDRAM

DMA as required only for SCC1, SCC4, FCC1 & FCC2

Auxiliary clock and timestamp clock

8 MByte Flash module (16 and 32 MByte configurations have not been tested)

Flash read and write capability

Instruction and Data caches

On-chip PCI bridge for 82xx chips.

PCI Bridge Direct DMA 

PCI Error Handling 

\sh Unsupported Features (PROTOTYPE board revisions)

virtual DMA

Parallel Ports

Baud Rate Generators not used by supported devices

SPI

Reset capability or options

SCC1 and SCC4 in any mode other than UART

SCC2 and SCC3

ATM, Transparent, or HDLC protocols on FCC1 and FCC2

FCC3

MCC1 and MCC2

SMC1 or SMC2

USB 

Any of the eight TDM interfaces

Support for the two 96 DIN connectors
(Voyager Tools Board connector and Expansion connector)
which bring out all pins on the MPC8272 chip

\sh Feature Interactions
None known

HARDWARE DETAILS
This section documents the details of the device drivers and board
hardware elements.

\sh Devices