8
4.2
USER-PROGRAMMABLE FEATURES
You may program the
Sampling Setup
,
Reporting Setup
, and
Dynamic
Configuration
on the PDI which are discussed in
Section 4.2.1
through
Section
4.2.3
respectively.
4.2.1
SAMPLING SETUP
Sampling Setup allows you to program the Debounce Delay and Latch Polarity for
the input channels. The Debounce Delay is used to guard against erroneous
events. An event will not be valid unless the input channel has remained at a
changed state for the debounce duration. The debounce delay may be
programmed from 0 (for no debounce) to 65535 milliseconds. The Latch Polarity
is used to latch individual inputs based on a positive going (LO to HI) or negative
going (HI to LO) input. The latch information is retained in memory until recalled
by the user.
The default Debounce Delay time is 100 milliseconds and the default
Latch Polarity is a HI to LO transition.
4.2.2
REPORTING SETUP
Reporting Setup allows you to program how the PDI reports event samples to the
host module. The items you may program in the Reporting Setup include
Reporting Method
,
Report Start Time
,
Report Interval
,
Set Host Address
,
Data
Format
,
Time Tag
, and
Terminating Character(s)
. The following subsections
describe these features in more detail.
4.2.2.1 REPORTING METHOD
Reporting Method is the manner in which event samples are sent to the designated
host module. The PDI provides three Reporting Methods: Command (upon
request via data commands), Immediate (upon exiting configuration), and
Schedule (where reporting begins at a specified time).
The default Reporting
Method is Command.
Summary of Contents for V79 PDI-1
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