Usb Communication Enable And Loopback Switches - Digi XLR PRO User Manual

Getting started with the XLR PRO RF Module

USB communication enable and loopback switches

The USB communication enable switches are on the right side of the board, just above the
COMMISSIONING and RESET buttons. Slide the DIP switches to the left to enable them (ENABLE_
UART_LOOPBACK is enabled when pushed to the right). When enabled, they allow communication
from the USB port to reach the XLR PRO module. The loopback switch loops back data sent from the
USB port back out of the USB port.
ENABLE_UART_to_USB: switch allows UART communication from the USB port.
ENABLE_SPI_to_USB: switch allows SPI communication from the USB port.
ENABLE_GPIO_to_USB: switch allows GPIO communication from the USB port.
ENABLE_UART_LOOPBACK: switch allows loopback UART DIN sent from the USB port (UART DIN goes
to UART DOUT). ENABLE_UART_LOOPBACK is enabled when the switch is slid to the right. If the
switch is enabled and ENABLE_UART_to_USB is low, the loopback is disconnected from the XLR PRO
module, but is still looped back to the USB port.
The LEDs next to the switches indicate whether the lines are enabled.
XLR PRO Radio Frequency (RF) Module User Guide
Development Board for the XLR PRO RF Module
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