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JOHI's avatar
JOHI
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7 years ago

DE0 - Nano: How to prevent getty - bash from claiming ttyS0 during boot.

Hello, I am trying to use ttyS0 for serial communications with a my user program. It seems that ttyS0 is kept in use by LXDE for console purposes. The boot log shows: "console [ttyS0] enabled"; ...
JOHI's avatar
JOHI
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7 years ago

Hello CNg,

Thank you for looking at my question.

The platform I am using is LXDE (It is a lightweight linux OS) it is included with the DEO-Nano and can be download for the Terrasic site (precompiled).

For a reason that is unclear to me, the "standard setup" as documented on the Net is not followed and therefore the init.d files do not contain references to the tty component loaded during boot.

I have noting against the fact that Linux mounts my serial ports, because i need them. (so i think Hal is ok and does not need modification, but I could be wrong)

But the fact that getty is opening this port for console purposes I do not want since I want to use the port for something else.

I hope I do not need to rebuild the complete OS based on a modified bsp in order to change this behaviour.

Best Regards,

Johi.