4.1.2 Active Current Measurements
See the following instructions to measure active power.
1. Remove the VBAT jumper (J18) as shown in
2. Solder a 0.1-Ω resistor on a wire which can be connected to a voltmeter/oscilloscope. Or, attach a jumper
across J18 so that it can be used with a current probe.
3. Measure the voltage across the resistor using an oscilloscope with a differential probe. For the current
probe, coil the wire around the sensor several times for good sensitivity.
An ammeter can also be used for this measurement, but the results may be erroneous due to the
switching nature of the current. See the "Power Measurement Guide" in
Wi-Fi® Internet-on-a chip™ Networking Subsystem Power Management
for more current consumption
measurement techniques.
Figure 4-3. Active Current Measurement
Operational Setup and Testing
SWRU548C – FEBRUARY 2019 – REVISED SEPTEMBER 2021
CC3235MODSF SimpleLink™ Wi-Fi
®
and IoT Solution With MCU
LaunchPad™ Hardware
43
Copyright © 2021 Texas Instruments Incorporated
Summary of Contents for CC3235MODASF
Page 2: ......
