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Altera_Forum's avatar
Altera_Forum
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15 years ago

DE2 board. Flash and sram with NIOS

Hi I have same problem with using sram and flash simultaneously. I use DE2 board. This is how looks like my project. I have 2 address buses but one data bus. And I dont know how connect data bu...
Altera_Forum's avatar
Altera_Forum
Icon for Honored Contributor rankHonored Contributor
15 years ago

You have misunderstood.

tri_state_bridge_data[7..0] to flash_data[7..0]

tri_state_bridge_data[15..0] to sram_data[15..0]

They are multiplexed. Tristate bus will automatically drive oe and cs pins to enable only the correct chip when you rd or wr on its address range.