Hi,
In quadrature count mode a channel counter will decode the primary and secondary
external inputs as quadrature encoded signals and increment/decrements by one accordingly.
To get count info just read CNTR register.
There is no “flag” which say you if counter is counting up/down in Quadrature count mode. The easiest way how to get the direction is to take two counter samples and calculate the difference.
But you can also do it in HW way; set the output mode for the counter which asserts OFLAG when counting up and clears when counting down. You can use this output as secondary input for other channel within module. If this channel will be stopped, then the CTRL2[INPUT] bit will reflect that direction. If this channel will be started you can also detect the OFLAG edge and generate interrupt on direction change.
BR, Petr
