User manual

Emulation Header Features
 2014 Microchip Technology Inc. DS50002243A-page 23
2.11 TRIGGER IN/OUT
The emulation header is capable of producing an output pulse for external triggering
and detecting an input pulse for internal triggering.
2.11.1 Trigger In/Out Hardware
Pins on the emulation header may be used for Trigger In/Out. Pin functions are labeled
on the board silkscreen, namely:
• GND – ground
• TRIG IN – used for Trigger In
• TRIG OUT – used for Trigger Out
2.11.2 Trigger In Operation
A pulse on the Trigger In (TRIG IN) pin can be used to generate a trigger condition, halt
and/or trigger out signal. Set up Trigger In by selecting Window>Debugging>Triggers
.
An Event Breakpoint can be set up to break when a Trigger In pulse is detected.
See Section 2.5 “Enhanced Event Breakpoints”.
Selection Description
Polarity Trigger-in pin pulse polarity:
Positive: a positive-going pulse
Negative: a negative-going pulse
Noise Reduction Filter Reduce the noise on the trigger-in pin using a filter, which helps
mitigate spurious triggers from halting code.
Enable or disable this feature.
Trigger Trace Trigger trace when a pulse is received on the trigger-in pin.
Enable or disable this feature.