The following cables are used for communication between a dev host and the dev kit/target:

UART2

This is a serial port to USB cable to the dev host. It provides serial console communication to embedded Linux. It requires Minicom (or similar tool) to access device.

Note: UART is not used for development: only for console communications with the target.

These are the UART2 port settings:

Speed -115200 baud
Parity - None
Bits - 8
Stop bits - 1
Flow control - None

In Minicom, you can set UART2 config options through the CTRL+A O (configure) serial port setup.

Ethernet

The Ethernet cable lets you plug into a local network for a direct connection. Ethernet is used for development where a network connection is available.

The Ethernet port obtains a dynamic IP address for the target using DHCP. This matches subnet values between the target and the host so ssh commands will be available.

See Ethernet to setup an IP connection.

Micro-USB

This is a Micro-USB port to USB cable to the dev host. Micro-USB is used for development where a network connection isn't available (or desired).

The Micro-USB port provides access to IP over USB after it's been configured for ecm.

The micro-USB provides access to fastboot, CDC-ECM, CDC-ACM (AT commands), USB Audio, and Ethernet over USB (through an adapter).

See Micro-USB to setup an IP connection.

Copyright (C) Sierra Wireless Inc. Use of this work is subject to license.