rsp2k
492796c34e
- CS16 streams read into an int16 buffer; files hold raw SC16 Q11 (full scale 2048) instead of all zeros - bladeRF-cli backed tools release the USB claim while they run and restore RX/TX settings afterwards; loopback uses the plugin setting - calibrate_dc runs "calibrate lms" + "calibrate dc rxtx"; a bare "cal dc" only printed help and reported success - report the span of all SoapySDR ranges (rate was capped at 10 Msps) - parse "Firmware version" from bladeRF-cli 1.10 - startup banner goes to stderr, off the stdio JSON-RPC channel - shared RX chunk reader: settle discard, overflow and stall handling, stream always closed; captures report overflows, clipping, peak dBFS - spectrum power normalized to dBFS - unit tests, README troubleshooting, version 2026.10.25
70 lines
2.1 KiB
Python
70 lines
2.1 KiB
Python
import numpy as np
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import pytest
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from mcbladerf import capture, device
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@pytest.mark.parametrize("window", ["hann", "blackman", "hamming", "none"])
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def test_full_scale_tone_reads_0_dbfs(window):
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fs, n = 1e6, 1024
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bin_hz = fs / n
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t = np.arange(n * 8) / fs
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tone = np.exp(2j * np.pi * 37 * bin_hz * t).astype(np.complex64)
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s = capture.compute_spectrum(tone, fs, 100e6, fft_size=n, window=window, averaging=8)
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assert s.peak_power_db == pytest.approx(0.0, abs=0.01)
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assert s.peak_frequency_hz == pytest.approx(100e6 + 37 * bin_hz)
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def test_short_input_uses_requested_window():
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x = np.ones(100, dtype=np.complex64)
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s = capture.compute_spectrum(x, 1e6, 0.0, fft_size=1024, window="none")
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assert s.bin_count == 100
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assert s.peak_power_db == pytest.approx(0.0, abs=0.01)
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def test_cs16_file_is_raw_q11(tmp_path):
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raw = np.array([2048, -1024, 0, 512], dtype=np.int16)
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path = tmp_path / "x.cs16"
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raw.tofile(path)
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x = capture.read_iq_file(path, "cs16")
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np.testing.assert_allclose(x, [1.0 - 0.5j, 0.25j])
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def test_components_and_clip_level_agree_across_formats():
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q11 = np.array([2047, -100, 50, -2048], dtype=np.int16)
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cf32 = (q11[0::2] + 1j * q11[1::2]).astype(np.complex64) / device.CS16_FULL_SCALE
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a = capture._components(q11, "CS16")
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b = capture._components(cf32, "CF32")
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np.testing.assert_allclose(a, b)
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assert np.count_nonzero(a.max(axis=1) >= capture._CLIP_LEVEL) == 2
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class _Range:
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def __init__(self, lo, hi):
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self.lo, self.hi = lo, hi
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def minimum(self):
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return self.lo
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def maximum(self):
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return self.hi
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def test_range_span_covers_every_range():
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# What SoapyBladeRF 0.4.1 reports for a bladeRF x40
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ranges = [_Range(80e3, 10e6), _Range(10e6, 20e6), _Range(20e6, 40e6)]
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assert device.range_span(ranges) == {"min_hz": 80e3, "max_hz": 40e6}
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assert device.range_span([]) is None
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def test_alloc_buffer_matches_stream_format():
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assert device.alloc_buffer(10, "CS16").dtype == np.int16
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assert device.alloc_buffer(10, "CS16").size == 20
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assert device.alloc_buffer(10, "CF32").dtype == np.complex64
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