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Altera_Forum
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16 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

Oops sorry I forgot that issue with the template. The template will be fixed in the next version I think. Try this instead:

set_clock_groups -asynchronous -group [get_clocks altera_reserved_tck]

set_input_delay -clock altera_reserved_tck -clock_fall 1 [get_ports altera_reserved_tdi]

set_input_delay -clock altera_reserved_tck -clock_fall 1 [get_ports altera_reserved_tms]

set_output_delay -clock altera_reserved_tck -clock_fall 1 [get_ports altera_reserved_tdo]

Using 1 is overkill since the dev kits don't have that much board delay, I just picked it at random.