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object --+ | FlowControl.Controller --+ | LPTTriggerOutController
Use 8 bits of digital output for triggering and frame timing verification. Bit 0 (pin 2) goes high when the go loop begins and low when the loop ends. Bits 1-7 (pins 3-9) count the frame_number (modulo 2^7) in binary. Looking at any one of these pins therefore provides verification that your stimulus is not skipping frames.
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Create instance of Controller. Arguments: eval_frequency -- Int, bitwise "or" of flags temporal_variables -- Int, bitwise "or" of flags return_type -- Set to type() of the parameter under control
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Called by Presentation. Evaluate during the main 'go' loop. Override this method in subclasses.
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Called by Presentation. Evaluate between runs of the main 'go' loop. Override this method in subclasses.
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