Silicon Labs FLASH Programming Utilities2

Silicon Labs FLASH Programming Utilities2 is a set of desktop tools from Silicon Labs for programming, erasing, and verifying firmware on supported Silicon Labs microcontrollers and wireless SoCs. Designed for both development and production environments, it streamlines device bring-up, batch programming, and field updates with reliable, repeatable workflows.

Key features:

• Program, erase, and verify on-chip flash and lock bits
• Supports common debug interfaces, including C2, JTAG, and SWD
• Works with Silicon Labs USB Debug Adapter and SEGGER J-Link probes
• Compatible with select device families (such as C8051F/EFM8, EFM32, and EFR32), per release notes
• Command-line and GUI options for scripting, automation, and batch programming
• Read and write configuration data, option bytes, and unique IDs; supports auto-incremented serial numbers
• Production-friendly checks, including blank check, mass erase, and post-program verification
• Detailed logging and checksum verification for traceability and quality control
• Accepts common image formats, including Intel HEX, Motorola S-record, and binary

Silicon Labs Flash Programming Utilities2 helps teams reduce programming time, minimize errors, and maintain consistent firmware provisioning across prototypes, pilot runs, and high-volume manufacturing. For the latest supported devices and interfaces, refer to the official release notes and documentation from Silicon Labs.

Silicon Labs FLASH Programming Utilities2 is developed by silicon Labs. The most popular versions of this product among our users are: 4.2, 4.3, 4.4, 4.7 and 4.8. The name of the program executable file is FlashUtil.exe.