IAR Systems is now moving into the low-end real-time operating system (RTOS)
business with a product that complements its partners like Micrium and its uC/OS-II.
IAR's PowerPac is designed for developers who need the basics. Its small, 2-kbyte
footprint (for a typical Arm platform) has a very fast context switch. Limited
to 255 priorities, it supports pre-emptive and round-robin scheduling. It includes
typical RTOS features such as tasks, semaphores, mailboxes, and timers. It also
offers a device driver architecture and a DOS file system module. The C source
code is optional, and the RTOS is royalty free. Pricing starts around $7000.