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Altera_Forum's avatar
Altera_Forum
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15 years ago

writing/reading sram with cyclone3 in vhdl

Hey, i'm trying to write and read to/from the sram with a cyclone3 fpga on a NEEK. I wrote a little code to check if it's working, but it doesn't and i tried very much around but to no avail. The ...
Altera_Forum's avatar
Altera_Forum
Icon for Honored Contributor rankHonored Contributor
15 years ago

I think that the first thing to investigate is why SRAM_DATA and memorydata are different when you write.

Could you move the
flashnOE <= '1';
     flashnCE <= '1';
lines outside of the process? Just to be sure the flash is disabled at all times...

Did you compare the pin numbers between the board schematic and the pin planner in your project?