8.10.2 GPIOs

To configure the GPIOs that are connected to the antenna switch, sysfs entry


                /sys/wilc/antenna1

and /sys/wilc/antenna2 can be used as follows.

# echo GPIO_NUM > /sys/wilc/antenna1 ( for single antenna switch)
# echo GPIO_NUM > /sys/wilc/antenna2 ( for dual antenna switch)

where, GPIO_NUM is any valid GPIO for antenna diversity.

Valid GPIOs for the ATWILC1000 are 0, 1, 4 and 6.

Valid GPIOs for the ATWILC3000 are 3, 4, 17, 18, 19 and 20.

The online versions of the documents are provided as a courtesy. Verify all content and data in the device’s PDF documentation found on the device product page.