VILLASnode/etc/comedi.conf

/** Example configuration file for VILLASnode/comedi.
 *
 * The syntax of this file is similar to JSON.
 * A detailed description of the format can be found here:
 *   http://www.hyperrealm.com/libconfig/libconfig_manual.html#Configuration-Files
 *
 * @author Daniel Krebs <github@daniel-krebs.net>
 * @copyright 2018, Institute for Automation of Complex Power Systems, EONERC
 * @license GNU General Public License (version 3)
 *
 * VILLASnode
 *
 * This program is free software: you can redistribute it and/or modify
 * it under the terms of the GNU General Public License as published by
 * the Free Software Foundation, either version 3 of the License, or
 * any later version.
 *
 * This program is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 * GNU General Public License for more details.
 *
 * You should have received a copy of the GNU General Public License
 * along with this program.  If not, see <http://www.gnu.org/licenses/>.
 *********************************************************************************/

nodes = {
    pcie6259 = {
	    type = "comedi",
		device = "/dev/comedi0",
		in = {
		    subdevice = 0,
			rate = 1000,
			signals = (
			    # note: order in this array defines order in villas sample
				{ channel = 0, range = 0, aref = 0, name = "temperature_int" },
				{ channel = 1, range = 0, aref = 0, name = "loopback_ao0" },
				{ channel = 2, range = 0, aref = 0, name = "loopback_ao1" },
				{ channel = 3, range = 0, aref = 0, name = "bnc_ext" }
			)
		},
		out = {
		    subdevice = 1,
			# Note: buffer size and rate shouldn't be changed at the moment
			# output sample rate
			rate = 40000,
			# comedi write buffer in kilobytes
			bufsize = 24,
			signals = (
			    # note: order in this array corresponds to order in villas sample
				{ name = "ao0", channel = 0, range = 0, aref = 0 },
				{ name = "ao1", channel = 1, range = 0, aref = 0 },
				{ name = "ao2", channel = 2, range = 0, aref = 0 },
				{ name = "ao3", channel = 3, range = 0, aref = 0 }
			)
		}
	},

    remote = {
	    type = "socket",
		layer = "udp"
		format = "protobuf",
		local = "*:12000"
		remote = "134.130.169.32:12000"
	},

    sine1 = {
	    type = "signal",
		signal = "sine",
		values = 1,
		frequency = 50,
		rate = 10000,
	},

    sine2 = {
	    type = "signal",
		signal = "sine",
		values = 1,
		frequency = 100,
		rate = 10000,
	}
}

paths = (
	# 2-ch sine
	#{ in = ("sine1.data[0]", "sine2.data[0]"), out = "pcie6259", rate = 10000, mask = () }

	# Remote data via UDP
	{ in = "remote.data[0-3]", out = "pcie6259", rate = 40000, mask = () }
)