Examples - Lantronix xPico User Manual

Command 19h, Set Directions
Send:
Response:
Command 1Ah, Set Active Levels
Send:
Response:
Command 1Bh, Set States
Send:
Response:

Examples

Example 1: PC sends command 10h to find out which configurable pins are
available as GPIO.
PC -> xPico: 10h, 00h, 00h, 00h, 00h, 00h, 00h, 00h, 00h
xPico -> PC: 10h, 03h, 00h, 00h, 00h
Command details:
xPico User Guide
2 parameters
Bytes 1-4: Mask
Bit X 1 means the direction for GPIO X will be updated with the value in the
second parameter.
0 means the direction for that GPIO will not change.
Bytes 5-8: New Directions
Bit X 1 means GPIO X will become an output.
0 means it will become an input.
1 parameter
Bytes 1-4: The updated directions
2 parameters
Bytes 1-4: Mask
Bit X 1 means the direction for GPIO X will be updated with the value in the
second parameter.
0 means the active type for that GPIO will not change.
Bytes 5-8: New Active Levels
Bit X 1 means GPIO X will become active low.
0 means it will become active high.
1 parameter
Bytes 1-4: Updated active levels
2 parameters
Bytes 1-4: Mask
Bit X 1 means the state for GPIO X will be updated with the value in the
second parameter.
0 means the state for that GPIO will not change.
Bytes 5-8: New States
Bit X 1 means GPIO X will become active.
0 means it will become inactive.
1 parameter
Bytes 1-4: Updated states
9: GPIO Interface
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