Texas Instruments SimpleLink CC3200 Wi-Fi, Руководство пользователя

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Hardware Description
9 SWRU372C – June 2014 – Revised March 2020
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CC3200 SimpleLink™ Wi-Fi
®
and Internet of Things Solution With MCU
LaunchPad™ Hardware
2.4.2.1 Jumper Settings
Table 2. Jumper Settings
Reference Usage Comments
J2 I
2
C SDA
Short: Connect the CC3200 I
2
C bus to the on-board sensors with pullup
Open: Isolate the sensors from the CC3200
J3 I
2
C SCL
Short: Connect the CC3200 I
2
C bus to the on-board sensors with pullup
Open: Isolate the sensors from the CC320
J4 INT Short: Connect the accelerometer interrupt to the CC3200 on GPIO13
2.4.2.2 Default I
2
C Address
(1)
U6 is DNP on newer CC3200-LAUNCHXL builds.
Table 3. Default I
2
C Addresses
Sensor Type Ref Part Number Slave Address
Temp sensor U6
(1)
TMP008 0x41
Accelerometer U10 BMA222 0x18
2.4.3 Power Connections
The board can be powered by using the on-board micro USB connector. An on-board LDO provides 3.3 V
for the CC3200 and the rest of the board to operate. This supply can be isolated from the LDO using the
jumpers on the board.
Table 4. Jumper Settings
Reference Usage Comments
J12
Current
measurement
Measures the current flowing into the CC3200 device.
J13 Board power
Short: Supply the board power from the on-board LDO.
Open: Supply the board power from the J20 (battery connector)
J19 5-V power 5-V output from the USB VBUS (has a diode drop of up to 0.4 V)
J20 3.3-V power input
Can be used to power the board from an external 2xAA battery pack. It has in-built reverse
voltage protection to prevent the battery from being plugged in the reverse manner.