2020-01-05 18:38:59 +08:00
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import SoapySDR
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import numpy as np
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from scipy.signal import blackmanharris
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2020-01-05 19:31:07 +08:00
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2020-01-11 16:06:54 +08:00
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from stabilizer import InductionHeater, Stabilizer
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2020-01-05 18:38:59 +08:00
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2020-01-05 19:31:07 +08:00
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def main():
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2020-01-11 16:06:54 +08:00
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freq_sample = 5e6
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freq_base = 1086e6
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2020-01-05 19:31:07 +08:00
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induction = InductionHeater("/dev/ttyUSB0", 430e3, 445e3)
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induction.start()
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try:
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2020-01-11 16:06:54 +08:00
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stabilizer = Stabilizer(freq_sample, 0.4, 1088.3e6 - freq_base, 200e-6, induction)
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2020-01-05 19:31:07 +08:00
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2020-01-11 16:06:54 +08:00
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sdr = SoapySDR.Device()
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sdr.setSampleRate(SoapySDR.SOAPY_SDR_RX, 0, freq_sample)
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2020-01-05 19:31:07 +08:00
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sdr.setFrequency(SoapySDR.SOAPY_SDR_RX, 0, base_freq)
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2020-01-11 16:06:54 +08:00
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samples = np.array([0]*4096, np.complex64)
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rx_stream = sdr.setupStream(SoapySDR.SOAPY_SDR_RX, SoapySDR.SOAPY_SDR_CF32)
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2020-01-05 19:31:07 +08:00
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try:
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2020-01-11 16:06:54 +08:00
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sdr.activateStream(rx_stream)
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try:
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# We can't update faster than the MHS5200A serial interface
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stabilizer_throttle = 0
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while True:
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sr = sdr.readStream(rx_stream, [samples], len(samples))
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if sr.ret != len(samples):
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print("SDR sampling error")
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return
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stabilizer_throttle += 1
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if stabilizer_throttle == 30:
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stabilizer.input(samples)
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stabilizer_throttle = 0
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finally:
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sdr.deactivateStream(rx_stream)
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2020-01-05 19:31:07 +08:00
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finally:
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2020-01-11 16:06:54 +08:00
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sdr.closeStream(rx_stream)
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2020-01-05 19:31:07 +08:00
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finally:
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induction.stop()
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if __name__ == "__main__":
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main()
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