Lightware UMX-HDMI-140, User Manual

Page: 79 / 161

6. LW2 Programmer's Reference UMX-HDMI-140 series– User's Manual 79
Applied firmware package: v1.3.0b5 | LDC software: v2.5.6b2
6.7. GPIO Configuration
6.7.1. Query the Level and Direction for Each Pins
Level and direction of the GPIO pins can be queried as follows. See more details about GPIO connector in
the GPIO - General Purpose Input/Output Ports section and about the interface in the GPIO Interface section.
Command and Response #gpio
ȩ
{GPIO <pin_number> =?}
Ȩ
(GPIO <pin_number> = <direction> ; <level> )CrLf
Parameters
Parameter Parameter description Value Parameter value
<pin_number> GPIO pin number 0 ...8 GPIO pin number 1 to 8
<direction>
Direction of the
communication
I Input
O Output
<level> Level of the pin
L Low
H High
Example
ȩ
{gpio1=?}
Ȩ
(GPIO1=O;L)
Explanation
GPIO pin 1 is an input with low level.
6.7.2. Setting of Level and Direction for Each Pins
GPIO pins can be configured as follows. See more details about GPIO connector in the GPIO - General
Purpose Input/Output Ports section and about the interface in the GPIO Interface section.
Command and Response
ȩ
{GPIO <pin_number> = <direction> ; <level> }
Ȩ
(GPIO <pin_number> = <direction> ; <level> )CrLf
Parameters
Parameter Parameter description Value Parameter value
<pin_number> GPIO pin number 0 ...8 GPIO pin number 1 to 8
<direction>
Direction of the
communication
I Input
O Output
<level> Level of the pin
L Low
H High
T Toggle
Example
ȩ
{gpio1=i;h}
Ȩ
(GPIO1=I;H)
Explanation
GPIO pin 1 is set to input with high level.
  
