pmu_dft: add example config

etc/examples/hooks/pmu_dft.conf

@@ -0,0 +1,31 @@
+@include "hook-nodes.conf"
+
+paths = (
+	{
+		in = "signal_node"
+		out = "file_node"
+
+		hooks = (
+			{
+				type = "pmu_dft",
+
+				sample_rate = 100,			# sample rate of the input signal
+				dft_rate = 10.0,			# how often is the DFT beeing calculated?
+
+				start_freqency = 47.7,			# lowest freqyency bin
+				end_freqency = 52.5,			# highst freqyency bin
+				frequency_resolution = 0.01,		# freqyency bin resolution
+
+				window_size_factor = 1.0,
+				window_type = "hamming",		# one of: flattop, hamming, hann
+				padding_type = "zero" 			# one of: signal_repeat, zero
+				freq_estimate_type = "quadratic", 	# one of: quadratic
+
+				sync = true,
+				pps_index = 0,				# signal index of the PPS signal
+				
+				angle_unit = "rad" 			# one of: rad, degree
+			}
+		)
+	}
+)

etc/examples/nodes/uldaq.conf

@@ -18,12 +18,6 @@ nodes = {
 		}
 	},
 
-	sigGen = {
-		type = "signal"
-		signal = "sine"
-		frequency = 50
-		rate = 1000
-	}
 	vpmu = {
 		type = "socket",
 		layer = "udp",