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Hi,
does this kind of behaviour also happen if you try to debug helloworld or something like that?
Does this happen after the first download after power up or only if you downloaded your code several times?
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Thank you,
it happens also with very simple codes: I reduced many times my code to the bare minimal to understand if it was my fault. Usually I a simple hello world works but when I add simple things as a a variable that copies the switch value to the corresponding led it doesn't work anymore (it compiles and loads without errors but it doesn't print "Hello world" and doesn't reads the switches...even the reset KEY on the board doesn't work and I must stop from the IDE). I found a similar problem on alteraforum but the guy said he solved the problem changing the clock from 50MHz to 100MHz...I tried 24,50,27,108 MHz with a PLL and I'm shure it is not a clock issue.
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