Measurement system and method for generating a trigger signal for a measurement system

A measurement system having:

• at least one analog channel comprising an analog-to-digital converter configured to convert an external analog input signal into a corresponding digital input signal;
• an external trigger input for receiving an external trigger signal and comprising a first comparator configured to compare said external trigger signal against a trigger threshold signal for generating a binary trigger signal;
• a digital signal processing circuit configured to:
• receive said digital input signal;
• generate at least one trigger event signal based on said digital input signal;
• receive said binary trigger signal;
• and
• generate a combined trigger signal dependent on a set of trigger conditions based on said at least one digital input signal, said at least one trigger event signal and said binary trigger signal;
• and
• an acquisition memory, wherein said at least one analog-to-digital converter is connected to said acquisition memory for storing said at least one digital input signal or samples of said at least one digital input signal in said acquisition memory,
• wherein said acquisition memory is connected to said digital processing circuit for receiving said combined trigger signal, and
• wherein said digital signal processing circuit is configured to control the acquisition memory based on said combined trigger signal to select a portion of said at least one digital input signal stored in the acquisition memory or a portion of samples of said at least one digital input signal stored in the acquisition memory.