LeanFTL

LeanFTL is a "Flash Translation Layer" library targeting embedded systems. An FTL library is needed on all embedded systems to deal with the constraints inherent to flash memories and to be able to resume operations safely after an unexpected loss of power (AKA "tearing events"). LeanFTL aims at being a minimal library easily portable to any MCU and able to manage both internal and external flash memories. LeanFTL goal is to avoid fragmentation by design, this means that fragmentation never occurs no matter the usage pattern. Another important feature is the emulator which allows running LeanFTL on a personal computer, allowing the integrator to provide such an emulator for its firmware. Last but not least, the emulator is able to simulate "tearing events" - this is key to ensure robustness and security of an embedded system. In other words, LeanFTL not only provide the Flash Translation Layer, it also provides a tool for validating it is correctly used, something which is typically lacking even in commercial libraries.