void countMode (u8 cntChannel, u8 cntMode)
|cntChannel||Channel number (0 or 1 for DP-HCNT)|
|cntMode||0 = basic counter increments on both the rising and falling edge of the input.|
|1 = encoder counter that counts up or down based on the phase difference between A and B|
|2 = basic counter increments on the rising edge of the input.|
|3 = basic counter increments on the falling edge of the input.|
When cntMode is 0, 2, or 3 the channel functions as a basic counter. The module reads from port A (A0 for channel 0, A1 for channel 1). When in this mode, nothing should be connected to port B (B0 for channel 0, B1 for channel 1).
When cntMode is 1, the channel functions as an encoder counter.
The module counts up or down based on the phase difference between A and B. If A leads B, the counter counts up. If B leads A, the counter counts down. countMode will always initialize the count to 0. The count will roll over (65,535 to 0 if increasing, and 0 to 65,535 if decreasing) when the count exceeds 65,535 (16 bit maximum) or falls below 0.
When you use 24V open-collector type encoder, connect like this.