DE1 SRAM 256KB, but altsyncram only 64KB

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Thanks Bart for your reply and the poniter document. It makes me notice the difference between ON-chip and offchip RAM. It is really helpful though I am still struggling with it.

If you have time to upload a SRAM interface VHDL sample, I will really appreciate it.

Thanks.

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Hey,

I am too busy to write an SRAM interface but I have attached my colleague's. It displays a hex image file loaded into SRAM. You should use the DE1 control panel to load a file and then use this core to display the image onto a VGA monitor (attached VGA core as well). Note that you need to make a top-level VHDL or BDF module to connect all the cores.

Hope this helps, good luck.

Bart