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Silex technology Embedded Intelligent Module SX-560 User Manual

Page 60

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Page 54

Silex

Advanced Configuration

Part Number

140-00192-100

Table 22 GPIO Trigger Commands

Command

Description

SET GPIO TRIGger [1 | 0| DIS]

Sets a single control bit. The setting only takes
effect if the GPIO signal is not selected for a special
function operation and is configured to be an input.
The parameter after the TRIG keyword controls the
operation as follows:

Enable trigger if the specified GPIO signal
transitions from a 0 to a 1.

1

Enable trigger if the specified GPIO
transitions from a 1 to a 0

0

Enable trigger if the specified GPIO
transitions from a 0 to a 1

DIS Disable all triggers for the specified GPIO

signal.

must be in the range 1-8.

NOTE: Setting a trigger condition resets all
undefined trigger strings for triggers that are
enabled to the default string value.

NOTE: The trigger configuration is not changed by
a configuration reset to default.

SHOW GPIO TRIGger

Shows current GPIO trigger conditions. Note that a
GPIO may be enabled for two trigger conditions,
one for a 0 to 1 transition, and one for a 1 to 0
transition. If a GPIO is set for its special function,
no trigger is possible on that pin.

Example:

Local> set gpio trig 1 1

Local> set gpio trig 0 2

Local> show gpio trig

GPIO Trigger Conditions
-----------------------
trig if GPIO #1 is 1
trig if GPIO #2 is 0

GPIO #2 is set for OUTPUT
GPIO #3 is set for OUTPUT