BGAPI UART DFU Bootloader

This bootloader firmware is programmed by Silicon Labs to all BG22 modules during the manufacturing process. It supports updates over UART with special utility uart_dfu.exe

Updating the application using BGAPI UART DFU Bootloader

• Please build the application uart_dfu.exe using “make” with “cigwin” or similar platform on Windows operating system. On Linux, and Mac OS/s the “make” is supported natively.
• As an example the source code of the application uart_dfu can be found under the following folder on WindowsOS: 

C:\SiliconLabs\SimplicityStudio\v5\developer\sdks\gecko_sdk_suite\v3.2\app\bluetooth\example_host\uart_dfu

• Please build the application uart_dfu using of the methods described above
• Locate the uart_dfu.exe executable and run the command:  
  ./uart_dfu.exe COM42 115200 full.gbl where:​​​

1. ./uart_dfu.exe - name of the application 
2. COM42 - serial communication port of the connected DVK 
3. 115200 - serial port baud rate
4. full.gbl - Geko Bootloader file [GBL]. This file is generated by running  the create_bl_files.bat/.sh scripts. The script is included into soc-empty project templated that is provided by Simplicity studio. For testing please use soc-empty template project from Simplicity studio for experimenting and creating the GBL file      

• The utility generates the following message upon successful application update completion:

• Once the update is completed, to test the BLE application(example: soc-empty) please used mobile application (e.g.: nRFConnect, EFRConnect). The device should be advertising with “Empty Example” device name if soc-empty project produced firmware was used for update without any additional modifications. The device name can be updated in the soc-empty project using GATT configurator as shown:
  
   

 Summary: