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Altera_Forum's avatar
Altera_Forum
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17 years ago

Quartus II Initalization Problem...

In the code below, the num variable is initialized to 0. It basically gives an error saying it is stuck in the while loop. When I explicity state that num is 0 inside begin of the process, it works...
Altera_Forum's avatar
Altera_Forum
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17 years ago

Also a range in variable definition doesn't help here. I wonder, if the variable definition is used at all when evaluating the loop range. Personally, I always use FOR LOOPS in VHDL iterations, they have a clearly defined range and give less room for misunderstandings.

By the way, most infinite loops in accidental VHDL code I've seen have been due to misunderstanding the VHDL iteration concept as means to achieve a C-like sequential program flow.