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Altera_Forum's avatar
Altera_Forum
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17 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
17 years ago

--- Quote Start ---

OE->1

WE->0

...

an these I have set

--- Quote End ---

you set the opposite polarity in the code below

--- Quote Start ---

if ((SW_OE == 0))

begin

OE <= SW_OE; -- oe <= '0'

WE <= !SW_OE; -- we <= '1'

Data <= 16'hBDE7;

--- Quote End ---

As I said, this was the simple point. The other point is, that writing to the flash this way doesn't actually store anything in the memory array.