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4.3.2. Communication via UART Interface
1.
Run the driver disk on PC to install the USB-to-RS232 driver.
2.
Connect the UART interface (main UART or debug UART) to the PC with USB-to-RS232 converter
cable and then power on the module according to the procedures mentioned in Chapter 4.1. After
that, the USB serial port number can be viewed through the PC Device Manager, shown as the
following figure.
3.
Install and then use the QCOM tool provided by Quectel to realize the communication between the
smart module and the PC. The following figure shows the QCOM configuration: select correct "COM
port" (USB Serial Port) and set correct "Baudrate" (such as 115200bps). For more details about
QCOM tool usage and configuration, please refer to document [2].
Smart_ EVB_User_Guide
Figure 38: USB Serial Port
Smart LTE Module Series
Smart EVB User Guide
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