USB Flashing Format Data (UF2) is a file format developed by Microsoft for flashing microcontrollers over USB. The UF2 file consists of 512 byte blocks, each containing magic numbers and data. This fo...
USB Flashing Format Data (UF2) is a file format developed by Microsoft for flashing microcontrollers over USB. The UF2 file consists of 512 byte blocks, each containing magic numbers and data. This format is robust against issues like blocks written in wrong order.
To install a UF2 program on a microcontroller, first connect it via USB. The computer should recognize it as a drive. Then drag the UF2 file to that drive.
You can open UF2 files in a Microsoft MakeCode editor. The specific editor depends on what the UF2 program is for. For example, a file from makecode.microbit.org would open in that editor.
Be cautious with .uf2 files from unknown sources. The format can contain harmful software. Misspellings like .hf2 or .uf are common.
UF2 is suitable for flashing devices over USB. Each block works independently to handle issues with order. To install, connect microcontroller as drive and drag UF2 file to it. Open in the matching MakeCode editor. But watch for malware using this format.
Microsoft MakeCode
Adafruit CircuitPython
UF2 Converters