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This implements the functionality described in #230 |
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This is a screenshot of the medm screen for configuring PSO on one axis. This is a working example from the Automation1 driver on the add_position_compare_output branch 
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This adds the modifications to the asynMotorController and asynMotorAxis base classes to support position compare output (PCO). This is a feature supported by a number of controllers to output pulses at specific distance intervals over a specified window while the motor moves. The Aerotech, Newport XPS, Galil, and ACSMotion controllers support this capability.
To use this feature drivers need to implement the virtual function asynMotorAxis::enablePCO.
The Aerotech Automation1 driver currently implements this on its add_position_compare_output branch.