Other Parts Discussed in Thread: DRV8301
Dear all,
I am using a DRV8301 inverter board with a F28069M Piccolo MCU. If I want to add a second encoder to my system, can this be done directly by connecting it to J10 ('Hall interface')? I doubt this, because in the datasheet of the F2806xM microcontrollers, the GPIOs connected to J10 don't mention eQEP, opposed to the GPIOs from J4 ('Encoder'). Looking at this datasheet, it would be possible to connect a QEP to GPIOs 54-55-56, but these are not used on the DRV8301 board.
I am buidling a custom PCB to bring out some unused GPIOs and ADCs anyway, so this can be done, but it would be a lot easier to be able to connect the second encoder directly to the DRV8301 board.
Second thing I am wondering about, would it be possible to control a second motor with this board? Because there are 8 PWM units, and only 3 are used to control one motor.
Third: I see that IA-FB, IB-FB and IC-FB are assigned to two ADC channels each. In what way is this necessary? Is it possible to bring out three of these channels with my custom hardware, in order to read the outputs of extra sensors I want to add?
Lastly, I need two input voltages of 5V and three of 3.3V for the sensors. Is it possible to get these from anywhere from the board?
Thanks in advance.
