Texas Instruments CC3200-LAUNCHXL 사용자 설명서

Hardware Description

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. Make sure that the CC3200 is not driving any high current loads directly like 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. (Keep in mind that if the current levels are fluctuating, it may be difficult to get a

stable measurement. It is easier to measure quiescent states.)

SWRU372 – June 2014

CC3200 SimpleLink™ Wi-Fi

and IoT Solution with MCU LaunchPad

Hardware