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Anyway, after the fpga configuration, Nios is actually a 'real' microprocessor, so you are supposed to program it with a sequential language: C, assembler or whatever the dev tools provide. You can't program Nios with VHDL. Although both VHDL and C can virtually be used to perform the same operation, they apply to two different worlds and behave very differently.
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Hi Cris72,
Okay, so now I need to program the nios (sdram controller) with c language. Then, my main program (some mathematical operation to the pixels) is write in vhdl. How can I connect the nios (sdram controller) with the main program (vhdl)? I can't figure it out..I'm new with nios,please advise me.