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# e3-llrfsystem

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ESS Site-specific EPICS module : llrfsystem
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This module provides high level functionalities for a LLRF System.
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## Snippets for different sections
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On the iocsh folder a set of snippets for different sections (rfq, dtl, ...)
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is provide to be used by the LLRF IOCs.
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## System Parameters
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Main parameters like Frequency Sampling and System Frequency
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## Cavity De-tuning
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Implemented using a aSub record.
This implementation covers only the NCL cavities.
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## Feed Forward automatic calibration
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Implemented using sequencer module, this calibration runs the LLRF from minimum
to the maximum value doing some statistics and saving the output from
power amplifier forward. The result is a table to scale Feed Forward values.
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## Pulse Generation
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Fills Feed Forward table with a right shape.

## Frequency Tracking

Set the right phase table for Feed Forward based on some source (like detuning)

## Set Point Ramping

Fills the Set Point table with the right shape

## Gains

Calculate gains from power amplifier and pre amplifier

## Select main digitizer

Used on systems where 2 digitizer can drive the output.

## Monitor Interlock

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Check if there is a interlock on one of the boards to trigger the interlock
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on other

## Kly Info

Stores klystron information