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Altera_Forum's avatar
Altera_Forum
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10 years ago

Memory works in simulation, but not on HW?

Hello guys, I used the megafunction wizard to create 1-Port RAM. Then I managed to make the input and output bus as a single bi-directional bus. So the top level entity is : entity SRAM is port ...
Altera_Forum's avatar
Altera_Forum
Icon for Honored Contributor rankHonored Contributor
10 years ago

Just a couple of questions/statements that might help:

Have you simulated what happens if both OE and WR are low and high?

Also, sometimes, IO is active-low which means you have to invert the signal.

Are you sure the microcontroller code is correct? Can you check with a scope or LEDs?

[edit]Oh, and are you sure about your connections? All wires connected to the correct pins?[/edit]