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Altera_Forum
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15 years ago

NIOS not reading the right FIFO value

Hello guys, i made a 32bits DCFIFO using the megawizard. I made this wrapper to increment the fifo value by each second (my fifo is running at 50mhz) begin contador <= contador +...
Altera_Forum's avatar
Altera_Forum
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15 years ago

I recommend that you only allow the FIFO to be read when it's not empty. And if a read occurs when the FIFO is empty you assert waitrequest back to the fabric. Otherwise you may end up reading garbage out of the FIFO or cause it to underflow.