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Boondoggler's avatar
Boondoggler
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5 years ago

NIOS application build fail

Hi, I have recently created a NIOS II application for UART which has built and run correctly up until today. I have not made any changes other than to rebuild the release/debug app. In fact a...
JET60200's avatar
JET60200
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5 years ago

"I have recently created a NIOS II application for UART which has built and run correctly up until today. I have not made any changes other than to rebuild the release/debug app."

Hi @Boondoggler , I'm interesting to your NIOS Application for UART , if possible, can you share it here for us for reference. 3Tanks

Boondoggler's avatar
Boondoggler
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5 years ago

Hi, really that's for another thread and doesn't answer my question. Unfotunately I can't give the source out.

The inspirations came from:

https://ralphexe.wordpress.com/2016/11/01/altera-uart-ip-core-using-de0-nano/

which the first part is useful but very basic, but is pretty standard adding UART to NIOS builds and this:

https://community.intel.com/t5/Nios-II-Embedded-Design-Suite/NiosII-Uart-Interrupt-Handler/td-p/84690

which gave me direction on creating my own. Or use DMA which requires working out the code to understand how many characters are in the Rx buffer. If so, this worth a read:

https://community.intel.com/t5/Programmable-Devices/Nios-Uart-And-Dma/td-p/15995

Also this is a useful source:

https://class.ece.uw.edu/469/peckol/index.html