PolarSSL is a light-weight cryptographic and SSL/TLS library written in C. PolarSSL makes it easy for developers to include cryptographic and SSL/TLS capabilities in their (embedded) applications with as little hassle as possible. Loose coupling of the components inside the library means that it is easy to separate the parts that are needed, without needing to include the total library. PolarSSL is written with embedded systems in mind and has been ported on a number of architectures, including ARM, PowerPC, MIPS, and Motorola 68000. The source is written to have very loose coupling, enabling easy integration of parts in other software projects. Very loosely coupled cryptographic algorithms for MD2, MD4, MD5, SHA1, SHA-256, SHA-512, AES, Camellia, DES, Triple DES, ARC3, and RSA are included.
CANpie defines a Standard API for access to the CAN (Controller Area Network) bus. The API provides functionality for ISO/OSI Layer 2 (Data Link Layer). The CANpie driver is the base for HLPs like CANopen, DeviceNet, J1939, etc. Through its low memory footprint, CANpie can be used for embedded applications (without any OS) as well as for Linux. Access to the Linux CAN driver is via a socket interface (AF_CAN).
QP is a family of lightweight and portable frameworks for modeling and coding UML state machines in C or C++. Designed for real-time embedded systems, QP can replace an RTOS or work with one. It has been ported to many MCUs (ARM Cortex-M3/M0, ARM7/9, MSP430, TMS320C28x, AVR, PIC18/PIC24/dsPIC, M16C/R8C, H8, 68HC08, ColdFire, PSoC, NiosII, 8051/80251, PSoC) and OSs (Linux/POSIX, Win32, VxWorks, QNX, ThreadX, uC/OS-II).