Quartus compilation

[Altera_Forum]

Hi all, 

 I am compiling the project using quartusII (altera 13sp1). Some time after compilation, when I load fpga with .sof file fpga doesn't provide me any output.  If I compare the size of files for different compilation is the same but contents are different. Don't know why it happens.   No idea what is going. OS is Windows 7 6 GB ram, 2.5 GHz and 320 GB free HD space.

[Altera_Forum]

You question is very similar to the following. 

My car wont work. Other people's car's wont work either, even though they're the same make as mine. Whats wrong with the cars?  You see the problem? lack of detail. Add more detail and maybe we can help. The SOF files for the same device will always be the same size as they set ALL the logic inside the chip. The contents being different will be because you changed something between compiles.  Have you testbenched your design? does it work in ALL cases?

[Altera_Forum]

--- Quote Start ---  You question is very similar to the following. My car wont work. Other people's car's wont work either, even though they're the same make as mine. Whats wrong with the cars? There is not any relation with my problem  You see the problem? lack of detail. Add more detail and maybe we can help. The SOF files for the same device will always be the same size as they set ALL the logic inside the chip. The contents being different will be because you changed something between compiles.  Nothing has changed between the compiles.  Have you testbenched your design? does it work in ALL cases?  --- Quote End ---    Its fine with testbench but in hardware case gets not worked

[Altera_Forum]

My car works fine when running on the driveway, but wont work properly on the road. Were still missing specifics, like code and testbench and the bots that wont work.