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GPIO
When the application is executed, it will display GPIO information in the GPIO
INFORMATION group box. It displays the number of input pins and output pins. You
can click the radio button to choose to test either the single pin function or multiple
pin functions. The GPIO pin assignments of the supported platforms are located in
Appendix B.
Test Read Single Input Pin
–
Click the radio button- Single-Pin.
–
Key in the pin number to read the value of the input pin. The Pin number
starts from '0'.
–
Click the READ GPIO DATA button and the status of the GPIO pin will be dis-
played in (R/W) Result field.
Test Read Multiple Input Pin
–
Click the radio button- Multiple-Pins.
–
Key in the pin number from '0x01' to '0x0F' to read the value of the input pin.
The pin numbers are ordered bitwise, i.e. bit 0 stands for GPIO 0, bit 1 stands
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PCM-9562 User Manual
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