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How to access COM3 and COM4 in Linux?

Based on DMP's Vortex processor / SoC this board is a full computer capable of running a standard Windows and Linux installation on the backpack of your robot.
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How to access COM3 and COM4 in Linux?

Post by veltrop » Fri Nov 05, 2010 5:24 pm

Post by veltrop
Fri Nov 05, 2010 5:24 pm

I'd like to use the COM4 port for some Kondo serial servos.

But in Linux all I see is /dev/ttyS0 and /dev/ttyS1, presumably COM1 and COM2.

COM3 and COM4 are enabled in the BIOS, at 3E8/IRQ10 and 2E8/IRQ11.

This is with the 2.6.34.1-vortex86-sg kernel.

Any suggestions on how to access COM4?

Edit: Using the Roboard 100
I'd like to use the COM4 port for some Kondo serial servos.

But in Linux all I see is /dev/ttyS0 and /dev/ttyS1, presumably COM1 and COM2.

COM3 and COM4 are enabled in the BIOS, at 3E8/IRQ10 and 2E8/IRQ11.

This is with the 2.6.34.1-vortex86-sg kernel.

Any suggestions on how to access COM4?

Edit: Using the Roboard 100
veltrop
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Re: How to access COM3 and COM4 in Linux?

Post by roboard » Mon Nov 08, 2010 4:51 am

Post by roboard
Mon Nov 08, 2010 4:51 am

veltrop wrote:I'd like to use the COM4 port for some Kondo serial servos.

But in Linux all I see is /dev/ttyS0 and /dev/ttyS1, presumably COM1 and COM2.

COM3 and COM4 are enabled in the BIOS, at 3E8/IRQ10 and 2E8/IRQ11.

This is with the 2.6.34.1-vortex86-sg kernel.

Any suggestions on how to access COM4?

Edit: Using the Roboard 100


Hi, please download "RB-100/RB-110 Linux Installation Guide" from the official site, in which there are tutorials for COM3 & COM4 setting in Linux.

:)
veltrop wrote:I'd like to use the COM4 port for some Kondo serial servos.

But in Linux all I see is /dev/ttyS0 and /dev/ttyS1, presumably COM1 and COM2.

COM3 and COM4 are enabled in the BIOS, at 3E8/IRQ10 and 2E8/IRQ11.

This is with the 2.6.34.1-vortex86-sg kernel.

Any suggestions on how to access COM4?

Edit: Using the Roboard 100


Hi, please download "RB-100/RB-110 Linux Installation Guide" from the official site, in which there are tutorials for COM3 & COM4 setting in Linux.

:)
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Post by veltrop » Mon Nov 08, 2010 7:51 am

Post by veltrop
Mon Nov 08, 2010 7:51 am

Forgot about the new documentation! :lol:

Thanks for your help as usual.

Hopefully soon I'll have some info to report about driving Kondo serial servos from COM4.

It would be nice if Roboard had a library for that in RoBoIO :wink:

But chrisvo has his nice ics4/rcb4 library, and there's the KCB SDK from Kondo which contains ics code so it looks like the community is going to take care of it :wink:
Forgot about the new documentation! :lol:

Thanks for your help as usual.

Hopefully soon I'll have some info to report about driving Kondo serial servos from COM4.

It would be nice if Roboard had a library for that in RoBoIO :wink:

But chrisvo has his nice ics4/rcb4 library, and there's the KCB SDK from Kondo which contains ics code so it looks like the community is going to take care of it :wink:
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