Forum Discussion
Altera_Forum
Honored Contributor
21 years agoI'm restricted to a system speed of 100Mhz, but I also need high performance out of the NIOS as well. I found very little difference in speed between the 's' and 'f' models due to the nature of the design. The 's' model was used as an attempt to reduce the logic size since the overall design will be very busy. Right now the design is pretty light, just a NIOS and some surrounding logic, so I expected at least 110Mhz from the 's' core seeing as it's "suppose" to have an Fmax of 130 on stratix.
So it's not that I want to increase my system past 100MHz, I just don't like the idea of a light system having an fmax of 100Mhz since it's going into a much larger design. This is also the first time I've ever seen a NIOS having a low fmax due to internal logic (usually it's when you attach other hardware to the NIOS or put it into a busy design).