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Altera_Forum
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16 years ago

DE2 Board External RAM Read/Write Issue

Hello everyone, My lab partner and I are trying to use the external RAM chip on the DE2 board by building an interface to it in VHDL, following the procedure recommended in Part IV of this lab:...
Altera_Forum's avatar
Altera_Forum
Icon for Honored Contributor rankHonored Contributor
16 years ago

Finally got the answer -- our pin signals were misnamed. The standard pin names for all those enable signals end in "_N", not "_EN." Once we fixed that, we were able to use the high-impedance assignment without forcing the bus high, and then reading and writing worked properly.