MPC8540 exception

[stevegalus]

I have a mature design based on the MPC8540 which uses the Fast Ethernet Controller with an MII interface to an Intel LX971 transceiver.  It transmits its bootp request and is sent an IP address, but when downloading the VxWorks OS it results in an Exception.   Any suggestions?  

[yipingwang]

This is an Illegal instruction exception, it better to debug the program to find the root cause.

Exception current instruction address is 0x01419c80 which causes an exception.

You could use CodeWarrior to debug the program to find the exact code.

or on vxWorks target shell you could use the following .

-> lkAddr 0x01419c80

-> l <function name>

For the details, it 's better to contact VxWorks technical support.