Error when building hello_world in Nios IDE

Altera_Forum · ‎01-24-2006

I've never experienced this error before, but somehow it came up and it won't go away - regardless of what project I'm trying to build. This is on the hello_world project for the "standard" configuration of the Cyclone 1C20 dev kit. Any ideas?

**** Incremental build of configuration Debug for project hello_world ****
make -s all 
Creating generated.x...
Jan 23, 2006 7:14:01 PM - (SEVERE) generate: java.lang.IllegalStateException: java.lang.IllegalStateException: java.lang.NumberFormatException: For input string: "N/A"
make: ***  Error 1
make: ***  Error 2
Build completed

Thanks!

Altera_Forum · ‎01-24-2006

I've determined that it doesn't happen with a fresh copy of a kit example.

I added some custom logic to a kit example, regenerated in SOPC and recompiled in Quartus, and used that .ptf file as the target hardware. Then I get the error.

Unfortunately, I have no idea what's going on here past that.

Altera_Forum · ‎01-24-2006

Ok, getting a little closer to an answer.

It appears the generated.x file contains the memory map for my system. I am intentionally leaving a section of "unused" memory in my system (it will be used by custom logic, a DMA reads from that section of memory and I don't want it to get overwritten). I can't see the file it's trying to parse since it doesn't finish creating it, but I'm assuming somebody made it output "N/A" if the memory isn't used, and then that "N/A" gets read as if it were a number, which throws this exception.

Therefore, how do I create areas of unused memory without having this happen?

Thanks.

Altera_Forum · ‎01-24-2006

Even closer now:

If I take the kit design and add in some unused memory without my custom logic, it works fine. If I put my custom logic in, it doesn't.

However, the system generates and compiles.. I only get the error in the IDE.

The said DMA reads from the first 0x100000 addresses of SDRAM and writes to some small on-chip cache, which is in turn read by custom logic...

So now I really don't understand why I'm getting the error.

Altera_Forum · ‎01-24-2006

Ok, I figured it out.

My custom logic was interfacing with the CPU via a slave port, and it didn't handle addresses properly.

Altera_Forum · ‎07-05-2006

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originally posted by rhaikh@Jan 24 2006, 05:01 PM

ok, i figured it out.

my custom logic was interfacing with the cpu via a slave port, and it didn't handle addresses properly.

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I've just met a problem like this, could you tell me how did you solve this problem?

Thanks.