Segment Voltage too large, maximum is: + 1.024 V

Question:

Each time I start PATCHMASTER, I get the error message:

"Segment Voltage too large, maximum is: + 1.024 V".

What does this error mean an how can I get rid of it?

Answer:

The source of the error is the Pulse Generator file. In the Pulse Generator the stimulation pattern and triggers can be defined. If such a sequence is created for an EPC 10 amplifier, then the stimulus channel would be DA-3, another DA, for example DA-0 could be used for applying a 5 V TTL trigger.

However, if an EPC 9 Double amplifier would be used instead, then DA-0 is the stimulus output of the first amplifier. The 5V trigger would now be applied to the headstage of the amplifier. Since the voltage range of the headstage is limited to +/-1.024 V an error message comes up.

This error is displayed upon loading the Pulse Generator file, the PGF file is loaded upon starting PATCHMASTER.

You can get rid of the problem by going through all sequences in the Pulse Generator and by setting the correct output channels for your hardware.

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