NI Digital System Development Board User Manual
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© National Instruments
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11
The current information is collected across 0.1
sense resistors (R431, R445) placed in front of
the circuits that generate the user voltages (IC46, IC49). Since both of these circuits are linear
devices, the input current matches the current on the output. The voltage across the sense resistor
is fed into a current sense amplifier with a gain of 50, INA216A2, and divided by 5 before it is
connected to the XADC inputs. The equation below shows how to compute current from the
XADC number:
Zynq AP SoC Architecture
The Zynq AP SoC is divided into two distinct subsystems: The Processing System (PS), and the
Programmable Logic (PL). Figure 4 shows an overview of the Zynq AP SoC architecture, with
the PS colored light green and the PL in yellow. Note that the PCIe Gen2 controller and
Multi-gigabit transceivers are not available on the device found on this board.