SystemBase Eddy-CPU, User Manual

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Eddy-CPU User Guide
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5. GPIO Settings
Configure operation mode and value for each Programmable I/O pins.
Eddy includes 9 GPIO pins that output 3.3V or detect 3.3V signals. You can detect either any 3.3V signals
from external device, or output 3.3V signal to the external device. You can also program a customized
GPIO application, and you can implement it with the SDK included in the Eddy development kit.
After changing values, you need to click ‘Submit’ button. Then you will see the same page with modified
values. Please note that you have to ‘ Save & Reboot ’ in order to see these changes in effect. Changes will
be discarded if you do not save current settings.
z
Mode (Default: Output)
Options: Output, Input
Set current pin’s I/O mode. When in output mode, 3.3V output can be controlled. When in
input mode, any 3.3V from outside can be detected.