Quectel BG770A-GL TE-A - Application Interfaces; UART Interfaces

LPWA Module Series
BG770A-GL_TE-A_User_Guide 11 / 23
3 Application Interfaces
3.1. UART Interfaces
Figure 3: UART Interface
UART_DBG is for firmware upgrading, software debugging, log outputting and NMEA messages
outputting. UART_AUX is used for RF calibration and log outputting.
Install the USB to UART Bridge VCP Driver before you use the UART interfaces. Access Silicon Labs’
official website from here CP2102N_QFN28 to acquire the installation package.
The detailed downloading and installation steps are illustrated below. Some new versions of Windows 10
may automatically install the driver. The figure below is an example of the installation under the Windows
x64 system. Once the driver is installed, you can receive boot logs via QCOM, or for subsequent firmware
upgrades.