forked from M-Labs/artiq
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9b5a46dffd
commit
e1b0fcc24e
@ -16,7 +16,27 @@ COEFF_SHIFT = 11
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class SUServo:
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"""Sampler-Urukul Servo configuration device.
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"""Sampler-Urukul Servo parent and configuration device.
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Sampler-Urukul Servo is a integrated device controlling one
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8-channel ADC (Sampler) and two 4-channel DDS (Urukuls) with a DSP engine
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connecting the ADC data and the DDS output amplitudes to enable
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feedback. SUServo can for example be used to implement intensity
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stabilization of laser beams with an AOM and a photodetector.
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Additionally SUServo supports multiple preconfigured profiles per channel
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and features like automatic integrator hold.
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Notes:
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* See the SUServo variant of the Kasli target for an example of how to
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connect the gateware and the devices. Sampler and each Urukul need
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two EEM connections.
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* Ensure that both Urukuls are AD9910 variants and have the on-board
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dip switches set to 1100 (first two on, last two off).
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* Refer to the Sampler and Urukul documentation and the SUServo
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example device database for runtime configuration of the devices
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(PLLs, gains, clock routing etc.)
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:param channel: RTIO channel number
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:param pgia_device: Name of the Sampler PGIA gain setting SPI bus
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