Merge pull request #194 from K7MDL2/main

CaribouLite RF Sweep Generator
Looks great thanks a lot!

examples/python/soapy_rf_sweep_generator.py

@@ -0,0 +1,185 @@
+#-------------------------------
+#   CaribouLite Simple RF Sweep Generator for CaribouLite HiF channel
+#	Sweeps a range of RF frequyencies on HiF channel (1-6GHz capable)
+#	  User interface sets sweep start freq (in KHz), end freq (in KHz), sweep rate (in ms), and step size (in Hz)
+#	  by K7MDL March 7, 2024
+#	  derived from soapy_synth.py example program
+#	  requires PySimpleGUI - use pip to download anmd install the package
+#-------------------------------
+
+#-----------------------
+#		IMPORTS
+#-----------------------
+# PySimpleGUI
+from PySimpleGUI.PySimpleGUI import Canvas, Column
+from PySimpleGUI import Window, WIN_CLOSED, Slider, \
+					Button, theme, Text, Radio, Image, InputText, Canvas, Checkbox
+
+# System
+import time
+
+# Soapy
+import SoapySDR
+from SoapySDR import SOAPY_SDR_RX, SOAPY_SDR_TX, SOAPY_SDR_CS16
+		
+#-------------------------
+#			GUI
+#-------------------------
+def create_window():
+	layout = [
+		[Column(
+		    layout=[
+			[Text('Sweep Start Frequency [KHz]'), 
+				InputText(freq_start, key='Start_TxFreq', size=(10,1)), 
+				Button("Set Start", size=(10,1))],
+		    ]	
+		)],
+		[Column(
+		    layout=[
+			[Text('Sweep End Frequency [KHz] '), 
+				InputText(freq_end, key='End_TxFreq', size=(10,1)),
+				Button("Set End", size=(10,1))],
+		    ]
+		)],
+		[Column(
+		    layout=[
+			[Text('Step Size [Hz] '), 
+				InputText(step_Hz, key='Set_StepHz', size=(10,1)),
+				Button("Set Step Size", size=(10,1))],
+		    ]
+		)],
+		[Column(
+		    layout=[
+			[Text('Step Rate [ms]'), 
+				InputText(step_Rate, key='Set_StepRate', size=(10,1)),
+				Button("Set Step Rate", size=(10,1))],
+		    ]
+		)],
+		[Column(
+		    layout=[				 
+			[Text('Power [dBm]:'), 
+				InputText(pwr, key='HiFTxPwr', size=(5,1)), 
+				Button("Set Power", size=(10,1))],
+		    ]
+		)],
+		[Button("Activate HiF", size=(10,1)), Checkbox("Active", key="ActiveHiF", default=False)],
+		[Button("Exit", size=(10,1)),] 
+	]
+	window = Window("CaribouLite RF Sweep Generator", layout, margins=(10,10), location=(800,800))
+	return window
+
+#-----------------------
+#		SOAPY
+#-----------------------
+def setup_freq_power(sdr, stream, freq_KHz, power=10.0):
+	sdr.deactivateStream(stream)
+	sdr.setFrequency(SOAPY_SDR_TX, 0, freq_KHz)
+	sdr.setGain(SOAPY_SDR_TX, 0, power+10)
+
+def setup_transmitter(sdr, freq_KHz=2304100):
+	stream = sdr.setupStream(SOAPY_SDR_TX, SOAPY_SDR_CS16, [0], dict(CW="1"))
+	setup_freq_power(sdr, stream, freq_KHz)
+	return stream
+
+def update_transmitter_freq(sdr, stream, channel, freq_hz):
+	sdr.deactivateStream(stream)
+	sdr.setFrequency(SOAPY_SDR_TX, channel, freq_hz)
+	sdr.activateStream(stream)
+    
+#-----------------------
+#		MAIN
+#-----------------------
+def main():
+	activeHiF = False
+	
+	# Frequency is in KHz for data entry, SDR needs Hz values.
+	global freq_start
+	global freq_end
+	freq_KHz = 2304100000.0
+	# power is in dBm
+	global pwr
+	#Step Size in Hz
+	global step_Hz
+	#Step Rate in ms
+	global step_Rate
+		
+	#  Initialize CaribouLite Soapy
+	sdrHiF = SoapySDR.Device({"driver": "Cariboulite", "channel": "HiF"})
+	synthStreamHiF = setup_transmitter(sdrHiF, freq_KHz)
+
+	# create the window
+	window = create_window()
+	
+	while True:
+		event, values = window.read(timeout = step_Rate)   #20)
+
+		#---------------------------------------------
+		if (event == "Exit" or event == WIN_CLOSED):
+			break;
+
+		#---------------------------------------------
+		elif event == "Set Power":
+			pwr = float(values['HiFTxPwr'])
+			setup_freq_power(sdrHiF, synthStreamHiF, freq_KHz, pwr)
+			print("Current Freq: %.2f Hz, Pwr: %.1f dBm" % (freq_KHz, pwr))
+
+		#---------------------------------------------
+		elif event == "Set Step Size":
+			step_Hz = float(values['Set_StepHz'])
+			print("New Step Size: %.2f Hz" % (step_Hz))
+
+		#---------------------------------------------
+		elif event == "Set Step Rate":
+			step_Rate = float(values['Set_StepRate'])
+			print("New Step Rate: %dms" % (step_Rate))
+
+		#---------------------------------------------
+		elif event == "Set Start":
+			freq_start = float(values['Start_TxFreq'])
+			freq_KHz = freq_start * 1000
+			print("Set Sweep Start Freq: %.2f Hz, Pwr: %.1f dBm" % (freq_start, pwr))
+
+		#---------------------------------------------
+		elif event == "Set End":
+			freq_end = float(values['End_TxFreq'])
+			print("Set Sweep End Freq: %.2f Hz, Pwr: %.1f dBm" % (freq_end, pwr))
+			
+		elif event == "Activate HiF":
+			activeHiF = not activeHiF
+			if activeHiF:
+				if (freq_KHz > freq_end*1000):
+					freq_KHz = freq_start*1000
+				sdrHiF.activateStream(synthStreamHiF)
+				setup_freq_power(sdrHiF, synthStreamHiF, freq_KHz, pwr)
+		
+			else:
+				setup_freq_power(sdrHiF, synthStreamHiF, freq_KHz, pwr)
+				sdrHiF.deactivateStream(synthStreamHiF)
+
+		window["ActiveHiF"].Update(value=activeHiF)
+
+		if (activeHiF):
+			freq_KHz = freq_KHz + step_Hz
+			if (freq_KHz > freq_end*1000):
+				freq_KHz = freq_start*1000
+			update_transmitter_freq(sdrHiF, synthStreamHiF, 0, freq_KHz)
+			#print("Sweep Freq: %.2f Hz, Start: %d KHz, End: %d KHz, Step Size: %d, Step Rate: %d, Pwr: %.1f dBm" % (freq_KHz, freq_start, freq_end, step_Hz, step_Rate, pwr))
+
+	sdrHiF.deactivateStream(synthStreamHiF)
+	sdrHiF.closeStream(synthStreamHiF)
+	window.close()
+
+#Globals
+# frequency is in KHz for data entry, SDR needs Hz values.
+freq_start = 2304090
+freq_end = 2304110
+# power is in dBm
+pwr = 14.0
+#Step Size in Hz
+step_Hz = 500
+#Step Rate in ms
+step_Rate = 10
+
+# run the program
+if __name__ == '__main__':
+	main()