I'm assuming that when it is in this mode, the timer hardware will take care of the pulse counting, counting up or down depending on the phase of the A and B signals from the quadrature encoder, but I'm now not sure of my assumption. I have written a simple program that generates quadrature signals on pins X1 and X2, I connect these to the alternate function pins on timer 2, i.e X4 and X3 and use the configuration shown below, but I can not get the timer to count. Ive tried different combinations of modes on the timer channels but I'm now clutching at straws. Has anyone a simple working example?
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timer = pyb.Timer(2) timer_ch1=timer.channel(1,pyb.Timer.ENC_A) timer_ch2=timer.channel(2,pyb.Timer.ENC_B) pin_x4=pyb.Pin('X4') pin_x4.init(pyb.Pin.IN,af=pyb.Pin.AF1_TIM2) pin_x3=pyb.Pin('X3') pin_x3.init(pyb.Pin.IN,af=pyb.Pin.AF1_TIM2)