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Altera_Forum
Honored Contributor I
771 Views

how to use the loopback boards?

With the Cyclone III dev kit, there is 2 loopback boards provided. 

What is it for? How is it used?  

I couldn't find the documentation for it. 

 

Thanks.
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Altera_Forum
Honored Contributor I
54 Views

if you've installed the CIII development kit files the loopback schematic can be found at: 

 

C:\altera\72\kits\cycloneIII_3c120_dev\board_design_files\schematic\loopback_hsmc\debug_header_break...  

 

match the signals with the HSMC connector on the board schematic at: 

 

C:\altera\72\kits\cycloneIII_3c120_dev\board_design_files\schematic\c3_f780_host.pdf 

 

then you can run signals out of the FPGA, through the loopback adapter, and back into the FPGA.
Altera_Forum
Honored Contributor I
54 Views

Thank you thepancake. 

So the purpose of feeding the output of the fpga back to its input is for debugging? I'm trying to understand the idea behind doing it (basic questions: why would one do that). Maybe I can make use of it. Any books or references as examples? I tried looking for materials but maybe I'm not using the right keywords.
Altera_Forum
Honored Contributor I
54 Views

yes testing and debugging.

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