Linx Technologies RXM-GPS-F4 - Manual (Page 20)

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215 – Query: Get Configuration and GPIO Current State
Figure 44 below contains the values for the following example to read the
configuration and state of all of the GPIO lines:
$PLSC,215*16
The receiver outputs a response to this command. Figure 45 contains the
response for the above command.
Query Example
Name Example Units Description
MID $PLSC,215 Message ID
Checksum *16
End of message termination
Figure 44: Query Example
WriteOutput Example
Name Example Units Description
MID $PLSR,215 Message ID
Count 5 Total number of GPIOs
GPIO Number A GPIO Number
Configuration 0 Direction; 0 = Input; 1 = Output
Current State 0 0 = Low; 1 = High
GPIO Number B GPIO Number
Configuration 0 Direction; 0 = Input; 1 = Output
Current State 0 0 = Low; 1 = High
GPIO Number C GPIO Number
Configuration 0 Direction; 0 = Input; 1 = Output
Current State 0 0 = Low; 1 = High
GPIO Number D GPIO Number
Configuration 0 Direction; 0 = Input; 1 = Output
Current State 1 0 = Low; 1 = High
GPIO Number E GPIO Number
Configuration 0 Direction; 0 = Input; 1 = Output
Current State 0 0 = Low; 1 = High
Checksum *72
End of message termination
Figure 45: Query Response Example
For some further examples of this command:
Set GPIO 1 to low
Input command: $PLSC,215*16
Output response: $PLSR,215,5,1,0,0,10,0,1,13,0,1,14,0,1,15,0,1*00