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Altera_Forum
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17 years ago

I want to know the max speed of NIOS ii based on cyclone iii EP3C120N780C

I have a DK-DSP-3C120N KIT,the NIOS II clock can not exceed 100mhz.The highest speed of NIOS II /f is now just 100mhz.The C program always dead when the clock exceed 100mhz.I want to working at least...
Altera_Forum's avatar
Altera_Forum
Icon for Honored Contributor rankHonored Contributor
16 years ago

Hello,

I am designing an Ethernet connectivity using Cyclone III development board, therefore RGMII is used as an interface between the MAC & PHY.

After building the complete system in SOPC builder and then compiling the design, there are a lat of warnings and a critical warning (timing requirement not met).

I am trying now to fix the critical warning. In doing so, I started by constraining all paths and I/O ports in the design, the number of warnings decreased, but there is still a critical warning (timing requirement not met).

Any advice regarding this issue.

Thanks & Regards