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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

Ah, now i know what you mean.

The other control signals are not accessible with the cycloneIII.

nADV, nADSP, CE2, ZZ and MODE are hardwired i guess (at least it looks like that in the cycloneIII schematic). In the cycloneIII reference manual there are only the signals i used, so i think it's possible to use the SSRAM only with them

P.S: i also tried activating nCS and nWE/nOE simultaneously, but i got the same result. do i need the signals nADV, nADSP or nADSC to perform a single write/read? i thought they are used to perform burst operations