OpenBLT enables you and your customers to update the firmware on your microcontroller based product. A major benefit of OpenBLT being open source is that you can customize and tweak the bootloader to your specific needs.
OpenBLT can be ported to any 8-bit, 16-bit, or 32-bit microcontroller and currently runs on microcontrollers with an ARM Cortex-M, Infineon Tricore, and Freescale HCS12 core. It is most popular on STM32 microcontrollers.
By default, it supports communication interfaces such as: RS232, CAN, USB, TCP/IP and it ships with the easy-to-use [MicroBoot](https://www.feaser.com/openblt/doku.php?id=manual:microboot) PC tool for initiating and monitoring the firmware update. Performing firmware updates directly from an SD-card is also supported.
For those that prefer a command line program for performing firmware updates, there is [BootCommander](https://www.feaser.com/openblt/doku.php?id=manual:bootcommander). If you would rather build your own firmware update tool for seamless integration into your existing toolset, then have a look at the OpenBLT host library ([LibOpenBLT](https://www.feaser.com/openblt/doku.php?id=manual:libopenblt)). This is an easy-to-use shared library, enabling you to develop your own firmware update tool quickly, in the programming language of your liking.
The OpenBLT [download package](https://www.feaser.com/openblt/doku.php?id=download) contains numerous preconfigured demo programs for popular and low-cost development boards, making it possible for you to get started with the bootloader quickly.
OpenBLT is offered under a dual licensing model. The default license is the GNU GPL. If you plan on integrating OpenBLT into your closed source project, a commercial license can be obtained:
Development and maintenance of OpenBLT is sponsered by Feaser. Feaser also offers integration/customization services, support and maintenance contracts, and several add-on modules:
