Tektronix CSA7404B, Руководство пользователя

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Triggering
CSA7000B Series & TDS7000B Series Instruments User Manual
3- 99
Overview Control elements and resources To trigger on a state (Cont.)
Set trigger
when
6. To choose to trigger when the logic condition is met
(goes TRUE) or when the logic condition is not met
(goes FALSE), touch Trigger When Pattern and select
False or True from the list.
For the simplest operation, leave this control set to
TRUE. Setting the control to FALSE complements the
output of the chosen pattern function, for example, from
AND to NAND or NOR to OR.
To set mode
and holdoff
7. Mode and holdoff can be set for all standard trigger
types.
See To set holdoff on page 3--74 and To select the
trigger mode on page 3--71 for mode and holdoff
setup. To learn more about trigger mode and
holdoff, see the descriptions Trigger Modes on
page 3--65 and Trigger Holdoff on page 3--66.
When you select the type Setup/Hold, the instrument uses one channel as a data
channel (the factory default setting is Ch1), another channel as a clock channel
(default is Ch2), and triggers if the data transitions within the setup or hold time
of the clock. (
Setup/Hold Trigger on page 3--80 describes how setup/hold
triggers work.) To use setup and hold triggering, do the following procedures.
Overview To trigger on setup/hold time violations Control elements and resources
Select setup/
hold triggering
1. From the toolbar, touch Trig, select the A Event tab of
the Trigger control window, and touch Select.
2. Touch Setup/Hold.
To Trigger on Setup/
Hold Time Violations