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Communication with gpio(De2-70)

Altera_Forum
Honored Contributor II
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Hello, 

 

I realize a communication between two kits DE2-70 by the gpio. Communication is 100MHz (Stream Avalon) with a flat cable. But there are too many problems, erroneous bits, ... 

I was told it is certainly possible to increase the output current of ios but I do not know how we do this? 

I was also talk of increasing fanin and fanout but I do not know how. 

Can you explain the method to be followed to achieve this? 

Or any other suggestions for improving the transmission? 

 

Thank you.
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