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Power Measurements
Power Measurements
Example Programs
1-14
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removed. See
Power Measurements
level of
can be measured by using the INA230 IC (
VDD_DMC0
current consumption of the domain, if the jumper is removed. See
Measurements
section for more information
A FET switch (
) controls the 5V to the USB devices over the
U40
signal.
USB0_VBUS
Locations are provided for measuring the current draw from various power
planes. Precision 0.05 ohm shunt resistors are available on the
,
, and 3.3V and voltage domains. For current draw, the
VDD_INT
USB0_VBUS
jumper is removed, voltage across the resistor can be measured using an
oscilloscope, and the value of the resistor can be measured using a preci-
sion multi-meter. Once voltage and resistance are measured, the current
can be calculated by dividing the voltage by the resistance. For the highest
accuracy, a differential probe should be used for measuring the voltage
across the resistor.
There are also ICs (
and
U48
consumption of each power rail in software when the jumper is removed.
For more information, refer to
Example programs are provided with the ADSP-BF707 Board Support
Package to demonstrate various capabilities of the product. The programs
can be found in the
ADSP-BF707_EZ-Board-Rel1.0.0\examples
The number after the "Rel" could be higher for newer versions. Refer to a
readme file provided with each example for more information.
ADSP-BF707 EZ-KIT Lite Evaluation System Manual
for more information. The voltage
) that can be used to measure the current
U31
Power Jumpers (P8-12,
) and the
U31
Power
,
VDD_EXT
P14-18).
folder.
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