Multi-Tech Systems GPRS (MTSMC-G) ユーザーズマニュアル
Chapter 13 – Specific AT Commands
Multi-Tech Systems, Inc. Wireless GSM/GPRS AT Commands (Document Number S000293I)
114
Read GPIO Value +WIOR
Description:
Read the requested GPI or GPIO pin value.
Notes:
•
By default (e.g., after a reset), the I/O ports configuration is set by the
+WIOM command.
•
This command is allowed only on a GPIO not allocated by an Open-AT embedded application or
for bus operations.
for bus operations.
•
When the BT chip is switched on, the GPIO5 is not available anymore.
Values:
<index>
Up to ten I/O ports are available. The <index> value is between 0 and 9.
<value>
0
I/O port number <index> is reset.
1
I/O port number <index> is set.
Syntax: Command
syntax:
AT+WIOR=<index>
Response
syntax:
+WIOR: <value>
Command
Possible responses
AT+WIOR=0
Read I/O (number 0) value
Read I/O (number 0) value
+WIOR: 0
OK
GPIO number 0 is reset
OK
GPIO number 0 is reset
Write GPIO Value +WIOW
Description:
Set the requested GPO or GPIO pin value.
Notes:
•
By default (e.g., after a reset), the I/O ports configuration is set by the
+WIOM command.
•
This command is allowed only on a GPIO not allocated by an Open-AT embedded application or
for bus operations.
for bus operations.
•
When the BT chip is switched on, the GPIO5 is not available anymore. It is not possible to
change the state of the GPIO using this command.
change the state of the GPIO using this command.
Values: <index>
Up to ten I/O ports are available. The <index> value is between 0 and 9.
<value>
0
I/O port number <index> is reset.
1
I/O port number <index> is set.
Syntax:
Command syntax: AT+WIOW=<index >,<value>
Command
Possible responses
AT+WIOW=2,0
Reset I/O (number 2)
Reset I/O (number 2)
OK
GPIO value is written
GPIO value is written