User manual

UM0036 DVP and EMU2 (HDS2) emulator features
Doc ID 7705 Rev 11 257/385
Figure 194. DVP1 trigger settings
Working with trace filtering (DVP2 and DVP3 only)
In the Trigger/Trace Settings window, if you click the Trace filtering enable option, the
trace is filtered using the same hardware events that affect the trigger output, so that the
trace recording mirrors the trigger output:
● EVT_ON hardware events start the trace recording. If the program encounters more
than one EVT_ON during program execution, the number of EVT_ON events are
counted.
● EVT_OFF hardware events stop the trace recording. However, the number of
EVT_OFF hardware events must equal the number of EVT_ON hardware events
before the trace recording is stopped (each EVT_OFF decrements the EVT_ON
counter).
● EVT_HIT hardware events cause the trace to be recorded for one address cycle. (The
address corresponds to that defined in the hardware event).
The schematic drawing in the window shows how the trace and trigger act synchronously
(see Figure 195).
Figure 195. DVP2 trigger/trace settings