Xilinx HW-130 User Manual page 68

HW-130 Programmer User Guide
To start the auto-calibration, follow these steps after turning on the
power on your programmer:
1. Install the HW-130-CAL calibration adapter, shown in Figure B-1.
2. Select Options
Note: Depending on the version of the hardware, PV
not be displayed.
3. To measure the voltage and current for each power supply, use the
Figure B-2 Measuring Voltage and Current
4. To measure current, open the switch that corresponds to the
B-2
The calibration adapter includes test points for measuring the
voltage and current levels of the programmable power supplies.
Auto-Calibration.
A dialog box is opened showing the status of the available
supplies.
provided switches (see Figure B-2).
In the closed position, the switches on the adapter connect load
resistors to their respective power supplies. Open the switch to
measure current that corresponds to the supply being measured.
Calibration Adapter
HW-130
Im
+
PVxx Vm
-
supply being measured and connect the external current
measuring equipment to the adapter, as shown in the preceding
figure. The HW-130 results that are displayed in the Auto-
Calibration dialog box should agree with the value measured by
the current measuring equipment by the following percentages:
should be ±1%
PV
cc
should be ±10%
I
cc
R
L
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Xilinx Development System
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