Thread: Invariant FPGA Image Version Error?
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Unread 02-03-2010, 04:24 PM
jhersh jhersh is offline
National Instruments
AKA: Joe Hershberger
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Re: Invariant FPGA Image Version Error?
Quote:
Originally Posted by 1951-44U View Post
Here is what happened:

When we loaded the file in via FTP Client (FileZilla), we rebooted the robot. We intently watched the serial output and found (to our surprise) that everything started up normally! However, upon enabling, a "Watchdog Not Fed" error shows up on the Classmate as a status. So we reloaded our program. But then upon reboot we get the same error as before.
Can you try rebooting a number of times, watching for the error each time? I'm curious if you see this every time or if it is an intermittent issue. In your second boot, you can see the Hardware GUID trace is corrupted, but the FPGA version check passed. In the 3rd boot (like the original post) the version check failed but the printed GUID is good.

The way the version check works is it simply reads the GUID from the hardware and compares it with the software value... if it fails for the invariant FPGA, it then prints out both versions. The fact that it is wrong one time and right immediately after is troubling. It tends to point to a hardware problem since no other team is seeing this, and you see it consistently. I believe this chassis should be RMA'd.

-Joe
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