Nut/OS

Nut/OS is an intentionally simple RTOS for the ATmega128, which provides a minimum of services to run Nut/Net, the TCP/IP stack.

Features

• Non preemptive multithreading.
• Events.
• Periodic and one-shot timers.
• Dynamic heap memory allocation.
• Interrupt driven streaming I/O.
• Base protocols ARP, IP, ICMP, UDP and TCP.
• User protocols DHCP, DNS and HTTP.
• Socket API.
• Host, net and default routing.
• Interrupt driven Ethernet driver.