-
Notifications
You must be signed in to change notification settings - Fork 0
Expand file tree
/
Copy path#siggen.py#
More file actions
243 lines (211 loc) · 55.2 KB
/
#siggen.py#
File metadata and controls
243 lines (211 loc) · 55.2 KB
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
########################################################################
## Simple signal generator for testing transmit
########################################################################
import SoapySDR
from SoapySDR import * #SOAPY_SDR_ constants
import numpy as np
from optparse import OptionParser
import time
import os
import math
def siggen_app(
args,
args,
e)
print("Actual Tx Rate %f Msps"%(sdr.getSampleRate(SOAPY_SDR_TX, txChan)/1e6))
#set bandwidth
if txBw is not None: sdr.setBandwidth(SOAPY_SDR_TX, txChan, txBw)
#set antenna
print("Set the antenna")
if txAnt is not None: sdr.setAntenna(SOAPY_SDR_TX, txChan, txAnt)
#set overall gain
print("Set the gain")
if txGain is not None: sdr.setGain(SOAPY_SDR_TX, txChan, txGain)
#tune frontends
print("Tune the frontend")
if freq is not None: sdr.setFrequency(SOAPY_SDR_TX, txChan, freq)
#tx loop
#create tx stream
print("Create Tx stream")
txStream = sdr.setupStream(SOAPY_SDR_TX, "CF32", [txChan])
print("Activate Tx Stream")
sdr.activateStream(txStream)
phaseAcc = 0
phaseInc = 2*math.pi*waveFreq/rate
streamMTU = sdr.getStreamMTU(txStream)
sampsCh0 = np.array([ampl]*streamMTU, np.complex64)
timeLastPrint = time.time()
totalSamps = 0
while True:
phaseAccNext = phaseAcc + streamMTU*phaseInc
sampsCh0 = ampl*np.exp(1j*np.linspace(phaseAcc, phaseAccNext, streamMTU)).astype(np.complex64)
phaseAcc = phaseAccNext
while phaseAcc > math.pi*2: phaseAcc -= math.pi*2
sr = sdr.writeStream(txStream, [sampsCh0], sampsCh0.size, timeoutUs=1000000)
if sr.ret != sampsCh0.size:
raise Exception("Expected writeStream() to consume all samples! %d"%sr.ret)
totalSamps += sr.ret
if time.time() > timeLastPrint + 5.0:
print("Python siggen rate: %f Msps"%(totalSamps/(time.time()-timeLastPrint)/1e6))
totalSamps = 0
timeLastPrint = time.time()
#cleanup streams
print("Cleanup stream")
sdr.deactivateStream(txStream)
sdr.closeStream(txStream)
print("Done!")
def main():
parser = OptionParser()
parser.add_option("--args", type="string", dest="args", help="device factor arguments", default="")
parser.add_option("--rate", type="float", dest="rate", help="Tx and Rx sample rate", default=1e6)
parser.add_option("--ampl", type="float", dest="ampl", help="Tx digital amplitude rate", default=0.7)
parser.add_option("--txAnt", type="string", dest="txAnt", help="Optional Tx antenna", default=None)
parser.add_option("--txGain", type="float", dest="txGain", help="Optional Tx gain (dB)", default=None)
parser.add_option("--txChan", type="int", dest="txChan", help="Transmitter channel (def=0)", default=0)
parser.add_option("--freq", type="float", dest="freq", help="Optional Tx and Rx freq (Hz)", default=None)
parser.add_option("--txBw", type="float", dest="txBw", help="Optional Tx filter bw (Hz)", default=None)
parser.add_option("--waveFreq", type="float", dest="waveFreq", help="Baseband waveform freq (Hz)", default=None)
parser.add_option("--clockRate", type="float", dest="clockRate", help="Optional clock rate (Hz)", default=None)
(options, args) = parser.parse_args()
siggen_app(
an, txGain)
#tune frontends
print("Tune the frontend")
if freq is not None: sdr.setFrequency(SOAPY_SDR_TX, txChan, freq)
#tx loop
#create tx stream
print("Create Tx stream")
txStream = sdr.setupStream(SOAPY_SDR_TX, "CF32", [txChan])
print("Activate Tx Stream")
sdr.activateStream(txStream)
phaseAcc = 0
phaseInc = 2*math.pi*waveFreq/rate
streamMTU = sdr.getStreamMTU(txStream)
sampsCh0 = np.array([ampl]*streamMTU, np.complex64)
timeLastPrint = time.time()
totalSamps = 0
while True:
phaseAccNext = phaseAcc + streamMTU*phaseInc
sampsCh0 = ampl*np.exp(1j*np.linspace(phaseAcc, phaseAccNext, streamMTU)).astype(np.complex64)
phaseAcc = phaseAccNext
while phaseAcc > math.pi*2: phaseAcc -= math.pi*2
sr = sdr.writeStream(txStream, [sampsCh0], sampsCh0.size, timeoutUs=1000000)
if sr.ret != sampsCh0.size:
raise Exception("Expected writeStream() to consume all samples! %d"%sr.ret)
totalSamps += sr.ret
if time.time() > timeLastPrint + 5.0:
print("Python siggen rate: %f Msps"%(totalSamps/(time.time()-timeLastPrint)/1e6))
totalSamps = 0
timeLastPrint = time.time()
#cleanup streams
print("Cleanup stream")
sdr.deactivateStream(txStream)
sdr.closeStream(txStream)
print("Done!")
def main():
parser = OptionParser()
parser.add_option("--args", type="string", dest="args", help="device factor arguments", default="")
parser.add_option("--rate", type="float", dest="rate", help="Tx and Rx sample rate", default=1e6)
parser.add_option("--ampl", type="float", dest="ampl", help="Tx digital amplitude rate", default=0.7)
parser.add_option("--txAnt", type="string", dest="txAnt", help="Optional Tx antenna", default=None)
parser.add_option("--txGain", type="float", dest="txGain", help="Optional Tx gain (dB)", default=None)
parser.add_option("--txChan", type="int", dest="txChan", help="Transmitter channel (def=0)", default=0)
parser.add_option("--freq", type="float", dest="freq", help="Optional Tx and Rx freq (Hz)", default=None)
parser.add_option("--txBw", type="float", dest="txBw", help="Optional Tx filter bw (Hz)", default=None)
parser.add_option("--waveFreq", type="float", dest="waveFreq", help="Baseband waveform freq (Hz)", default=None)
parser.add_option("--clockRate", type="float", dest="clockRate", help="Optional clock rate (Hz)", default=None)
(options, args) = parser.parse_args()
siggen_app(
= sdr.getStreamMTU(txStream)
pi*2
otalSamps = 0
Tx and Rx sample rate", default=1e6)
parser.add_option("--ampl", type="float", dest="ampl", help="Tx digital amplitude rate", default=0.7)
parser.add_option("--txAnt", type="string", dest="txAnt", help="Optional Tx antenna", default=None)
parser.add_option("--txGain", type="float", dest="txGain", help="Optional Tx gain (dB)", default=None)
parser.add_option("--txChan", type="int", dest="txChan", help="Transmitter channel (def=0)", default=0)
parser.add_option("--freq", type="float", dest="freq", help="Optional Tx and Rx freq (Hz)", default=None)
parser.add_option("--txBw", type="float", dest="txBw", help="Optional Tx filter bw (Hz)", default=None)
parser.add_option("--waveFreq", type="float", dest="waveFreq", help="Baseband waveform freq (Hz)", default=None)
parser.add_option("--clockRate", type="float", dest="clockRate", help="Optional clock rate (Hz)", default=None)
(options, args) = parser.parse_args()
siggen_app(
args=options.args,
rate=options.rate,
ampl=options.ampl,
freq=options.freq,
txBw=options.txBw,
txAnt=options.txAnt,
txGain=options.txGain,
txChan=options.txChan,
clockRate=options.clockRate,
waveFreq=options.waveFreq,
)
if __name__ == '__main__': main()args,
rate,
ampl=0.7,
freq=None,
txBw=None,
txChan=0,
rxChan=0,
txGain=None,
txAnt=None,
clockRate=None,
waveFreq=None
):
if waveFreq is None: waveFreq = rate/10
sdr = SoapySDR.Device(args)
#set clock rate first
if clockRate is not None: sdr.setMasterClockRate(clockRate)
#set sample rate
sdr.setSampleRate(SOAPY_SDR_TX, txChan, rate)
print("Actual Tx Rate %f Msps"%(sdr.getSampleRate(SOAPY_SDR_TX, txChan)/1e6))
#set bandwidth
if txBw is not None: sdr.setBandwidth(SOAPY_SDR_TX, txChan, txBw)
#set antenna
print("Set the antenna")
if txAnt is not None: sdr.setAntenna(SOAPY_SDR_TX, txChan, txAnt)
#set overall gain
print("Set the gain")
if txGain is not None: sdr.setGain(SOAPY_SDR_TX, txChan, txGain)
#tune frontends
print("Tune the frontend")
if freq is not None: sdr.setFrequency(SOAPY_SDR_TX, txChan, freq)
#tx loop
#create tx stream
print("Create Tx stream")
txStream = sdr.setupStream(SOAPY_SDR_TX, "CF32", [txChan])
print("Activate Tx Stream")
sdr.activateStream(txStream)
phaseAcc = 0
phaseInc = 2*math.pi*waveFreq/rate
streamMTU = sdr.getStreamMTU(txStream)
sampsCh0 = np.array([ampl]*streamMTU, np.complex64)
timeLastPrint = time.time()
totalSamps = 0
while True:
phaseAccNext = phaseAcc + streamMTU*phaseInc
sampsCh0 = ampl*np.exp(1j*np.linspace(phaseAcc, phaseAccNext, streamMTU)).astype(np.complex64)
phaseAcc = phaseAccNext
while phaseAcc > math.pi*2: phaseAcc -= math.pi*2
sr = sdr.writeStream(txStream, [sampsCh0], sampsCh0.size, timeoutUs=1000000)
if sr.ret != sampsCh0.size:
raise Exception("Expected writeStream() to consume all samples! %d"%sr.ret)
totalSamps += sr.ret
if time.time() > timeLastPrint + 5.0:
print("Python siggen rate: %f Msps"%(totalSamps/(time.time()-timeLastPrint)/1e6))
totalSamps = 0
timeLastPrint = time.time()
#cleanup streams
print("Cleanup stream")
sdr.deactivateStream(txStream)
sdr.closeStream(txStream)
print("Done!")
def main():
parser = OptionParser()
parser.add_option("--args", type="string", dest="args", help="device factor arguments", default="")
parser.add_option("--rate", type="float", dest="rate", help="Tx and Rx sample rate", default=1e6)
parser.add_option("--ampl", type="float", dest="ampl", help="Tx digital amplitude rate", default=0.7)
parser.add_option("--txAnt", type="string", dest="txAnt", help="Optional Tx antenna", default=None)
parser.add_option("--txGain", type="float", dest="txGain", help="Optional Tx gain (dB)", default=None)
parser.add_option("--txChan", type="int"