As soon as a module is connected via USB to a computer (Windows, MAC, Linux), it automatically switches to bootloader mode. This can also be recognized by the corresponding flash-Code of the status LED.

In bootloader mode, a virtual drive is created on the module, which then appears as a connected flash drive on the USB host computer. The application -created in the editor- can now simply be placed on this flash drive via drag’n’drop.

Content of the flash drive

The following files are visible on the flash drive:

• the application (xxx.UF2)
• the firmware (FWxxxxxx.UF2)
• a info file (INFO_UF2.TXT)
• a INDEX.HTM (contains a link to the editor)

Content of the INFO_UF2.TXT

The info file contains all contains all the necessary information about the connected module. This includes:

• the serial number
• the bootloader version
• the firmware version
• the version of the application
• the short name of the application (limited to 8 characters in the editor)
• the description of the application (limited to 64 characters in the editor)
• the module ID in the bus

IMPORTANT NOTES

It is not possible to run the application in bootloader mode – this only happens automatically as soon as the USB connection to the module has been disconnected!

In some situations – especially under Windows – it is possible that the host OS does not dynamically change the content of the flash drive, e.g. after a new application or new firmware has been copied to it. In this case, it is advisable to briefly disconnect the module from the host and then reconnect it!