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Altera_Forum
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20 years ago

how to communicate with a new external peripheral

sorry, my english is poor. i want to connect with Nios II system(SOPC Builder) and an altsynram(User Logic) now, i want to write a data (16 signed bits) to altsynram(data bits=16, addr bit...
Altera_Forum's avatar
Altera_Forum
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20 years ago

Hi kewang,

Your avalon interface must meet the timing requirements of your altsyncram. There

are many ways to do this ... and the appropriate solution will depend on your

particular requirements. The easiest is to add some glue logic that takes advantage

of the avalon waitrequest signal -- to make sure the avalon side meets the minimum

setup and hold times for your ram.

See http://www.altera.com/literature/manual/mnl_avalon_spec.pdf (http://www.altera.com/literature/manual/mnl_avalon_spec.pdf)

Regards,

--Scott