Connect to NIOS II uart

Connect to NIOS II uart

par Sylvain Jean-Roger Migaud,
Number of replies: 1

Hi,

I'd like to access the NIOS II uart through another console than the one offered by eclipse to be able to stream some data through it.

Is it possible ? It seems to me the board is seen as a complex object by the computer and I can't just access at the uart part the altera device.

Otherwise, do you know how we could send a small file to the fpga ?

Regards,

Sylvain

In reply to Sylvain Jean-Roger Migaud

Re: Connect to NIOS II uart

par Sahand Kashani-Akhavan,

Hi,

My apologies for not answering earlier. I didn't know of the existence of this mini-forum and did not receive any notifications for new posts!

Yes, this should be possible. Linux on you laptop does not expose the DE1-SoC as a whole and you can access just the serial port (this is what minicom does). Under linux a serial cable connected to the board appears as /dev/ttyUSB0 in the file system and you should be able to stream a file through it if you want (beware that it can be quite slow if your file is large!)

The link below shows how to do this for a serial connector called /dev/ttyS0, but technically you shouldbe able to use the same technique with /dev/ttyUSB0 to write to the board.

https://stackoverflow.com/questions/8877269/writing-to-serial-port-from-linux-command-line