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Altera_Forum
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15 years ago

Altaccumulate megafunction

I'm runnung Altera Quartus II v.9.1 to programming a Cyclone III device and i have some problem with the altaccumulate megafuncition. Looking with an DSO the output of my program i see a lot of spark...
Altera_Forum's avatar
Altera_Forum
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15 years ago

To avoid timing violations, an asynchronous reset must be released synchronous to clk. The same applies to any asynchronous clear. Follow the respective recommendations for reset generation in the Quartus software manual, you'll also find various contributions in Altera forum related to this problem. It's better to use an synchronous clear respectively load if ever possible.