Executing analogReference() sets a specific port to analog settings.

[SuguruHarada64]

■ Corresponding version
v.2.2.0 and Before v.2.2.0

■ API function affected by defect
analogReference()
The analogReference function is a function that sets the reference voltage used for analog input.

■ Contents and Occurrence conditions
There was an issue where using the analogReference function would set certain ports to analog. Therefore, if you set a particular port to be a digital port and then run the analogReference function, the port will not behave properly as a digital port.

The specific ports are as follows.
P22(A0 pin)

■ Workaround
Execute the analogReference() function at the beginning of the setup function.

■ Permanent measures
Scheduled to be fixed in next version.