Second parallel port communication

thatguy
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8 years 3 months ago #114887 by thatguy

Second parallel port communication was created by thatguy

I am looking at options for breakout boards and planning my computer setup. I want to use both a THC and an MPG. I can tell that I'm going to run out of I/O on many of the cost effective boards. I've noticed there are some MPG interface cards available that hook up to a second parallel port.

What I'm planning on right now is for motor signals, limits, and THC to be on one breakout board via a single parallel port and then to run an MPG to another parallel port. Is LinuxCNC configurable to that or do I need to formulate a different plan.

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PCW
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8 years 3 months ago #114894 by PCW

Replied by PCW on topic Second parallel port communication

Yes, linuxCNC can support up to 8 parallel ports

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Grotius
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8 years 3 months ago #114900 by Grotius

Replied by Grotius on topic Second parallel port communication

Hi Thatguy,

My advise is too use someting like this : www.allekabels.nl/pci-kaart/4974/1084957...art-2x-parallel.html
It works faster then using 2 separate pci ports.

For saving your time in hal section :

Code:

#find parport adres : halrun => lspci -vvv or type 
#find parport adres : dmesg | grep par

#one parport 
#loadrt hal_parport cfg="0x1110 out"
#dual parport
loadrt hal_parport cfg="0x1110 out 0x1120 out"

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thatguy
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8 years 3 months ago #114949 by thatguy

Replied by thatguy on topic Second parallel port communication

Thanks you two for the information.

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