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Altera_Forum's avatar
Altera_Forum
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18 years ago

Help with Flash memory reading

hi, I am new to digital design and FPGAs, and I am having trouble with the flash Memory on the Cyclone II development board. I am playing around with a simple (6502) based cpu core (actual...
Altera_Forum's avatar
Altera_Forum
Icon for Honored Contributor rankHonored Contributor
18 years ago

When you set

data = 16'hbde7;

oe = 1;

we = 0;and the other signals to useful fixed levels, what do you expect to happen at the flash device?

There is another point, I previously forgot. To read from a bidirectional pin, you have to drive the output to high impedance state, e. g. Data = 16'bz.