WIENER, Plein & Baus GmbH
19
www.wiener-d.com
4.2.8
VME Bus Analyzer – Example for IRQ Interrupt triggered Event
1) Set the waveform acquisition trigger condition to “Masked IRQ”
2) Change the IRQ logic condition in case needed, the default would trigger on any IRQ.
(Please note that in this example the IRQ is generated by the VM-DBA on an
incoming logic signal into the IN-Input. This is defined in the IRQ setup fields)
3) Click on Set to store the conditions
4) Click on Run, the red AQ LED will light up (Run will change to Halt)
5) Any interrupter IRQ 1 to 7 issued on the VME bus will trigger the bus analyzer and
as a result
AQ
LED will go off and the blue
F4
LED will flash indicating that
waveform data for read-out are available
6) Click on Read Waves
7) Select the lines to be shown on the waveform plot. This will open a new window
“Waveforms” showing the selected bus line waveforms. With the mouse cursor it is
possible to zoom (curser in “cross-mode”) in by selecting a range between time lines.
When pointing outside this area (“double-arrow-mode”) the displayed range can be
extended by 10 steps (left mouse click) or 100 steps (right mouse click).
