XADC and LogiCORE AXI XADC on Zynq-7000

Question

I want to control 4 BLDC motors and I want sampling the currents of all motors (3 currents for each motor). Since I want sampling each current in a particular instant of time, I think to use the "event-driven sampling mode" of the ADC (see UG480).
However, I don't understand a thing about the ADC. Reading the reference manual Zynq-7000 AP (UG585), I see that the chapter "XADC interface" talk about LogiCORE IP AXI XADC core.
Then, this core logic is already present in all 7000 series chip or it be added externally?

Reading the product guide of LogiCORE IP AXI XADC (see PG019), I think that this core logic is necessary in order to use the event-driven mode. It is true?

drozwood90 · Accepted Answer

Hi there,

The core is part of Vivado. It is fabric you instantiate by using that component. You add that into the design to access the XADC hardware. That hardware is already in the Zynq.

Unless you make your own, it is highly suggested to use this core. The core has been built to give you what you need in order to utilize this hardware.

--Dan