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Altera_Forum's avatar
Altera_Forum
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21 years ago

Question about Nios2 Min system.

Hello, I do Nios2 min system with Nios2(NiosII/s with jtag debug module level 1) + OnChipRam + Uart. But something warning occur in sopc builder. Besides warning, I also have some question. ...
Altera_Forum's avatar
Altera_Forum
Icon for Honored Contributor rankHonored Contributor
21 years ago

Thank you!

If I have question about nios, I will ask someone in the forum.

But there said in your reply that

"Another thing you should know is to bypass the data cache you have to use IORD and IOWR macro calls or set bit 31 of the address to '1' to do the bypass (declaring volatile pointers does not do the bypass for you anymore, but with HAL you shouldn't need to do this anyway)."

I don't know it clearly. Can you give something described this or others.