How to connect the XScale hardware for demo
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There are 4 main components 
1) ATX Power Supply
2) BRH XScale board
3) MAXIM Voltage Scaling EVAL board
4) GAL board

How to connect
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1) Connect Power supply to BRH board and GAL board
2) Connect the ribbon J3 and J4 from BRH board to GAL board as label
3) Connect the +12V, +5V and GND fro GAL board to VBATT, 5V and GND of MAXIM board as label
4) Connect the VOUT from MAXIM board to BRH board
5) Connect D0, D1, D2 and D3 from GAL board to BRH board

How to run demo
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1) First, start the NFS server at the host using
# /etc/rc.d/init.d/nfslock restart
# /etc/rc.d/init.d/nfs stop
# /etc/rc.d/init.d/nfs start

2) Start the DHCP server
# hdcpd eth0

3) Connect the host to BRH board using MINICOM using baud rate 57600 8N1  

4) Load kernel image to redboot using the following command at Redboot prompt
Redboot> load -r -m yMODEM -b 0xc1008000

5)  At minicom prompt, transfer the kernel file using
Type Ctrl-A-S, choose ymodem, input the filename 
	"/home/ssaewong/xscale-demo/zImage"

6) Run the kernel 
Redboot> go 0xc1008000

7) Login as root using "ixp1200" password

8) Go to directory /usr/apple/bin/

9) Now, you can change the voltage using the kernel loadable module in that directory



