Created
September 11, 2024 14:50
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| import spcm | |
| import numpy as np | |
| # Define frequency ranges for each channel | |
| ch0_freqs = np.linspace(85.0e6, 121.0e6, 3) | |
| ch1_freqs = np.linspace(84.5e6, 120.5e6, 3) | |
| # Assign cores to each channel | |
| ch0_cores = np.concatenate((np.arange(0, 8), np.arange(12, 20))) | |
| ch1_cores = np.concatenate((np.arange(8, 12), [20])) | |
| # Check if the number of frequencies exceeds the number of cores | |
| if len(ch0_freqs) > len(ch0_cores): | |
| raise RuntimeError(f"Number of frequencies for CH0 ({len(ch0_freqs)}) exceeds available cores ({len(ch0_cores)}).") | |
| if len(ch1_freqs) > len(ch1_cores): | |
| raise RuntimeError(f"Number of frequencies for CH1 ({len(ch1_freqs)}) exceeds available cores ({len(ch1_cores)}).") | |
| # Configure and use the SPCM card | |
| with spcm.Card(serial_number=18924) as card: | |
| channels = spcm.Channels(card) | |
| channels.enable(True) | |
| channels.amp(2.0 * spcm.units.V) | |
| card.card_mode(spcm.SPC_REP_STD_DDS) | |
| dds = spcm.DDS(card, channels=channels) | |
| dds.reset() | |
| dds.cores_on_channel(1, *map(lambda core: 2**core, ch1_cores)) | |
| frac = 0.40 | |
| for freq, core in zip(ch0_freqs, ch0_cores): | |
| dds.amp(core, frac / len(ch0_freqs)) | |
| dds.freq(core, freq) | |
| for freq, core in zip(ch1_freqs, ch1_cores): | |
| dds.amp(core, frac / len(ch1_freqs)) | |
| dds.freq(core, freq) | |
| dds.exec_at_trg() | |
| dds.write_to_card() | |
| card.start(spcm.M2CMD_CARD_ENABLETRIGGER | spcm.M2CMD_CARD_FORCETRIGGER) | |
| input("Press enter to exit.") |
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