Datasheet

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RN-ISP-UM-1.1
Figure 9. Turn On Load VCP Option
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5. Disconnect the RN-ISP from your computer’s USB port.
6. Re-connect the RN-ISP to your computer’s USB port. The appropriate COM ports are created in the Ports section
of the device manager (COM and LPT) as shown in Error! Reference source not found.Figure 10. You may
need to reboot your Windows machine for the COM ports to be created. Windows typically creates four sequential
COM ports (COM 3, 4, 5, and 6 in this example).
The highest COM port is the user UART, which you use to configure the module. In Error! Reference source
not found.Figure 10, COM 6 is the user UART. The second highest COM port is used to flash firmware to the
module using the flash loader utility. In this example, COM 5 is used to flash firmware.