Texas Instruments SimpleLink Wi-Fi BoosterPack CC3120, User Manual

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Hardware Description
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6 SWRU457A – February 2017 – Revised August 2018
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Copyright © 2017–2018, Texas Instruments Incorporated
CC3120 SimpleLink™ Wi-Fi
®
BoosterPack™ Plug-In Module and IoT
Solution
2.3 Connector and Jumper Descriptions
2.3.1 Push-buttons and LEDs
Table 1 lists the push-button descriptions.
Table 1. Push-buttons
Reference Usage Comments
SW1 Factory default
This button is used to restore the serial flash to the factory default image. Hold the
button and then toggle the RESET push-button.
SW2 RESET
This button can be used to reset the device. Holding the button down sets the device
in the SHUTDOWN state.
SW3 nHIB
This button boots the device to the bootloader mode for flashing the firmware over a
universal asynchronous receiver/transmitter (UART).
Table 2 lists the LED descriptions.
Table 2. LEDs
Reference Color Usage Comments
D5 Red PWR indication On, when the 3.3-V power is provided to the board.
D1 Yellow nRESET
This LED indicates the state of the nRESET pin. If this LED
is glowing, the device is functional.
D6 Green nHIB
This LED indicates the state of the nHIB pin. When the
LED is off the device is in HIBERNATE state.
D7 Red Factory default
This LED indicates whether the factory default switch is
pressed on. The RESET button must be pressed for this
LED to function.
2.3.2 Jumper Settings
Table 3 lists the jumper settings.
Table 3. Jumper Settings
Reference Usage Comments
J7 USB connector
For powering the BoosterPack when connected with a LaunchPad, which cannot source
enough current.
J8 Power selection
Choose the power supply from the LauchPad kit or the onboard USB.
J8 (1 to 2) power from the MCU LaunchPad
J8 (2 to 3) power from the onboard USB using a 3.3-V LDO
J6 Current measurement
For hibernate and LPDS currents, connect an ammeter across J26: Range (< 500 µA).
For active current, mount a 0.1-
Ω
resistor on R42, and measure the voltage across the
0.1- Ω resistor using a voltmeter (range < 50 mV peak-peak).
P1…P4 BoosterPack header 2 × 10 pins each connected to the LaunchPad
J3 RF test Murata connector (MM8030-2610) for production line tests
J2 RF test
U.FL connector for conducted testing in the lab. Using this requires an ECO be made to
the board by swapping two resistors.