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Altera_Forum's avatar
Altera_Forum
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15 years ago

pin assignment

hi: In order to draw a PCB which contains BGA chip (FPGA)conveniently,I want to assigned pin manually in the quartusII,so I can check the correctness of my assignment thougth quartusII compilati...
Altera_Forum's avatar
Altera_Forum
Icon for Honored Contributor rankHonored Contributor
15 years ago

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I want to design PCB board by myself,so the pin assignment should be changed,so the .CSV is different from the DE2 board ,for example :clk_50 ,change the pin assignment from PIN_N2 to PIN_N1.

so I should make sure the assignment changed is right.how to realize it ?

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rbugalho is absolutely right. Specifically, it is not recommended to change the pin if you are not familiar with the FPGA pins. But if you really want to do, you have to search for appropriate instructions about pin configuration. An example I just found is for cyclone III, the link is http://www.altera.com/literature/an/an466.pdf

You will find "Board Design Considerations" from page 17.