ADF-2  Board Control PAL Configuration
                --------------------------------------

                                                 Original Rev. 27-Sep-2004
                                              Most Recent Rev. 11-Jan-2005



This file describes the configuration process for the board control PAL on 
the ADF-2 circuit board.   

Requirements:
  -A windows computer with Xilinx Impact software, an ECP parallel port, and 
   a ps2 port. 
  -A Xilinx Parallel Cable IV.
  -An ADF-2 Circuit board.
  -A configuration cable.  This is a cable with a 2x7 connector at one end and 
   a 2x10 connector at the other.
  -The files bcp.jed, xv2c1000_4fg456c.bsd, xc95144xl_5_tq144.bsd and bcp.cmd 
   which can be down loaded at
   http://www.pa.msu.edu/hep/d0/ftp/run2b/l1cal/hardware/adf_2/firmware/bc_pal/_bin

Procedure
========= 
1.  Plug in the PS2 power adapter for the Parallel Cable IV into a PS2 port and the 
    DB25 connector into the parallel port on the PC.
    The computer should be off when this is done.  

2.  Plug in a 2x7 connector of the configuration cable into the Xilinx Parallel 
    Cable IV.  The cable is plugged into the Xilinx Parallel Cable IV such that
    pin 2 on the cable plugs into the pin labeled TMS on the Xilinx Parallel 
    Cable IV.  Also, the black wires on the cable plug into the ground pins on
    the Xilinx Parallel Cable IV.


          Looking down onto connector on Xilinx Parallel Cable IV.

          Black wires on    Pin
            this side     3  1
         +--+--+--+--+--+--+--+ 
         |  |  |  |  |  |  |  |
         +--+--+--+--+--+--+--+
         |  |  |  |  |  |  |  |
         +--+--+--+--+--+--+--+
                            TMS


3.  Plug in the 2x10 connector of the configuration cable into the ADF-2 P4
    connector.  The connector cable is plugged into the ADF-2 P4 connector 
    such that the pin 1 indicator on the cable connector is away from the 
    nearest corner of the board.  Also all of the black wires on the cable
    will be away from the edge of the board.

     P4 Connector on the ADF-2 board
                                         ^
                                     PAL |
                                         |
                                              Black wires on   Pin
                                                this side       1       FPGA
     +--+--+--+--+--+--+--+--+--+--+--+--+--+--+--+--+--+--+--+--+      --->
     |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
     +--+--+--+--+--+--+--+--+--+--+--+--+--+--+--+--+--+--+--+--+
     |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
     +--+--+--+--+--+--+--+--+--+--+--+--+--+--+--+--+--+--+--+--+


                               Edge of board

4.  Turn on the power to the ADF-2 board.

5.  Open a command window.  This can be done by clicking on Start->Run and typing 
    "cmd" and hitting return.

6.  Change to the directory where bcp.jed, xv2c1000_4fg456c.bsd, xc95144_5_tq144.bsd 
    and bcp.cmd resides.  This can be done by typing "cd <path>" and hitting return.
    Example: c:> cd c:\BCP

7.  Run the command to program the prom by typing "impact -batch bcp.cmd"


Changing Number of Devices in JTAG Chain
========================================
  The number of devices in the JTAG chain must match the number of devices
  in the bcp.cmd file.  If the number of devices on the ADF-2 circuit board
  change then the corresponding lines in bcp.cmd must be removed.


Configuration Cable Definition
==============================
   See Xilinx document "Xilinx Parallel Cable IV" (DS097) and
   http://www.pa.msu.edu/hep/d0/ftp/run2b/l1cal/hardware/adf_2/net_lists.
                                                 access_connectors_P4_P5_nets.txt 

            Connector Pin Assignments
                                  
                                             Wire         
   Function              2x7      2x10       Color        
 -------------------     ---      ----       -----       
   Gnd                    1        1         Black        
   Vref  Vdd Logic        2        2         Red          
   Gnd                    3        3         Black        
   TMS                    4        4         Green        
   Gnd                    5        5         Black        
   TCK                    6        6         Yellow       
   Gnd                    7        7         Black        
   TDO                    8        8         Red          
   Gnd                    9        9         Black        
   TDI                    10       10        Green        
   Gnd                    11       11        Black        
   Gnd                    13       12        Yellow