1. If customers want to use HyperTerminal for testing, then Qualcomm HS-USB Modem 9091 can be
used.
2. Please note that the USB port numbers may be different among different modules.
Communication via UART Interface
Step 1: Run the USB flash disk on PC to install the USB-to-RS232 driver.
Step 2: Connect the UART interface (main UART or debug UART) to the PC with USB-to-RS232
converter cable and then turn on the module according to the procedures mentioned in Chapter
5.1. After that, the USB serial port can be viewed through the PC Device Manager, as shown in
the figure below.
Figure 50: USB Serial Port for UART
Step 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 115200 bps). For more details
about QCOM tool usage and configuration, refer to document [3].
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