Hardware Description
2.6
Measure CC3200MOD Current Drawn
To measure the current drawn of the CC3200MOD, use the 3V3 jumper on the jumper isolation block
(J12). The current measured in this mode includes only the CC3200MOD current, and no external blocks.
However, if a GPIO of the CC3200MOD is driving a high current load like LED, then that is also included
in this measurement.
2.6.1
Measuring Low Power (< 1mA)
Follow these steps to measure ultra-low power:
Figure 11. Measuring Low Power
1. Remove the 3V3 jumper (J12); attach an ammeter across this jumper.
2. Check that the CC3200MOD is not driving any high current loads directly, such as an LED, as this can
cause large current drawn.
3. Begin target execution and set the device to low-power modes (LPDS or Hibernate).
4. Measure the current. Note that if the current levels are fluctuating, it may be difficult to get a stable
measurement. It is easier to measure quiescent states.
16
CC3200MOD SimpleLink™ Microcontroller and Wi-Fi® Network Processor
SWRU397 – December 2014
Module - LaunchPad Hardware
Copyright © 2014, Texas Instruments Incorporated
