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Altera_Forum
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21 years ago

Uart printf problems

Hi all, I'm trying to run a simple "Hello Word" program in a Nios project on a Opus103 EVB. The device is EP1C6144, with an extrernal 2Mb 16-bit wide SDRAM connected to it. ...
Altera_Forum's avatar
Altera_Forum
Icon for Honored Contributor rankHonored Contributor
21 years ago

I'm not familiar with the board you're using, but it looks a lot like you've got a problem in your SDRAM interface. My hunch is that the lower address bit is stuck (e.g. always 0) so that on a set of sequential byte accesses you wind up getting the sequence you've shown.

The reason this wouldn't cause problems for fetching the code itself is that this will be word aligned.