8.3 Firmware Upgrade Procedure using Microchip RNBD Utility PC Tool

The methods serial DFU and OTAU Manager is another RNBD451 used Microchip RNBD Utility tool on the PC. The software package for the RNBD451 is available for download from the official webpage of the RNBD451 device. The software package contains a Microchip RNBD Utility Tool. This contains a GUI-based executable for windows/Linux/iOS, and a separate Python script that can be run from the command line. As per the user’s requirement, the user can select the executable or command line script for updating the firmware.

As discussed earlier, the RNBD451 provides two possible options to update the firmware. The GUI-based utility tool executable is a unified tool that incorporates both serial DFU and OTPAC features into one workspace. In the tool, each feature is separated into different tabs and works independently.

In this section, we will individually explore the procedure steps that need to be followed for each firmware update feature.