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Update artiq/coredevice/phaser.py 

Co-authored-by: Robert Jördens <rj@quartiq.de>
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Norman Krackow 2022-06-23 09:15:50 +02:00 committed by GitHub
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commit 56c59e38f0
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artiq/coredevice/phaser.py
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@ -1148,7 +1148,7 @@ class PhaserChannel:
b1 >= COEFF_MAX or b1 < -COEFF_MAX):
raise ValueError("high gains")
forward_gain = (b0 + b1) * (DATA_MAX - NORM)
forward_gain = (b0 + b1) * (1 << SERVO_DATA_WIDTH - 1 - SERVO_COEFF_SHIFT)
effective_offset = int(round(DATA_MAX * y_offset + forward_gain * x_offset))
self.set_iir_mu(profile, b0, b1, a1, effective_offset)