Visual Circuits H-DVP Manual de usuario Pagina 314

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EMU3 emulator features UM0036
314/385 Doc ID 7705 Rev 11
Figure 247. Output trigger action modes
10.4.1 Trigger programming examples
The following examples show you how to control the trigger output signals by programming
the Advanced Breakpoints window.
Example 1: Sending a pulsed signal to synchronize an oscilloscope
Sometimes it is useful to send a pulsed signal from one of the output triggers to synchronize
an external device upon the occurrence of a particular event. For example, say that you want
to synchronize an oscilloscope upon the occurrence of an entry into an interrupt loop.
Program your Advanced Breakpoints window as summarized in the table below.
Pulse output
trigger
Pulse lasting one
processor cycle
Period of time between event
provoking pulse action
Toggle output
trigger
1st toggle
action
2nd toggle
action
3rd toggle
action
4th toggle
action
5th toggle
action
6th toggle
action
Set output
high/low
Set output
high
Set output
low
Set output low
(no action as output
already low)
Set output
high
Set output
low
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