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2.5.7
UART Signals
The board supports a USB-based virtual COM port, using the Tiva™ Arm MCU. The LaunchPad kit is
shipped with the UART lines from the CC3220 connected to the UART on the Tiva MCU. The CC3220
UART TX can also be routed to the 20-pin connector for use as a GPIO or external UART. The selection
is performed using jumpers on the board. The RX signal cannot be routed to the 20 pin connector
because it is interfaced to an op-amp to use with an ADC. To use the pin as GPIO or external UART you
must use the second pin on the J6 column.
Figure 13
shows the UART routed to USB COM port and
header connector.
SWRU463C – February 2017 – Revised March 2020
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Figure 13. UART Routed to USB COM Port
Figure 14. UART Routed to 20-Pin Header Connector
CC3220 SimpleLink™ Wi-Fi
Copyright © 2017–2020, Texas Instruments Incorporated
Figure 14
shows the UART routed to 20-pin
®
LaunchPad™ Development Kit Hardware
Hardware Description
17
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