System crashes when configuring altera stratix pci board

Hi,

I have been trying to get Altera's Stratix PCI Development Kit to work.
The device on the board is EP1s25f1020c5.
My design has a 32 bit PCI target core, alongwith a simple backend
design that
- sends a ready signal back to the PCI core following a framen signal
from the core
- and then reads in data (in case of a target write)

When I try to use the sof file to configure the device, the whole
system hangs. The configuration LED shows that the device is
configured.

The Altera documentation says a system hang is expected whenever the
PCI board is programmed when plugged into the PCI slot of the device,
and says a reset (without shutting down the power) should get the board
going. However, in my case, the system crashes so badly that even the
reset button has no effect.

I had found a reference to a similar problem, where they had found that
their backend was not responding to signals from the core in an
expected manner, thus crashing the system. I have gone through the
reference design and the Altera pdf, and kept my backend simple and
hopefully correct.

Has somebody ever faced this system hang situation while configuring an
Altera pci board? Where can the problem be? Help and comments are
wholeheartedly appreciated.

Mohit

.

Quantcast