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Altera_Forum's avatar
Altera_Forum
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15 years ago

Required Nios components

Hello, I am trying to develop a very simple Nios cpu to run Hello world application. I have created a design: http://i55.tinypic.com/a29isy.jpg As You can see, I have inserted DDR2 memory ...
Altera_Forum's avatar
Altera_Forum
Icon for Honored Contributor rankHonored Contributor
15 years ago

You need to constrain tck to run at at least 10MHz if you're using timequest (20MHz if you use the old timing analyser). The On-board USB-Blaster in the neek runs tck at upto 8MHz.

Also, there is probably little benefit to running the Avalon clock for the JTAG UART so slowly - I would run that at 20MHz or more (and check it meets timing)