Problem with the stack on m68k

[Noah Aklilu]

The problem seems to be related to the external hardware that I 
have connected to it (a couple of Xilinx FPGAs).  My program was 
a glorified memory tester, so I changed the address range to the on 
board dram and it worked fine.  The 68306 has a built in dram 
controller so no external address decoding was required, when 
interfacing to the FPGAs which use the lower 24 bits for decoding 
(the rest is controlled by chip select), somehow that causes it to 
generate spurious errors.  But thanks for your help, definitely 
helped me eliminate some of my problems.




Noah Aklilu
MSc Graduate Student
Dept of Electrical and Computer Engineering

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