The para-virtualized uC/OS-II was submitted by Korea University in order to make contributions to research and education in universities as a reference para-virtualized RTOS. uC/OS-II code : freescale i.mx21 port (www.micrium.com) xen-arm : wiki.xensource.com/xenwiki/XenARM - Run idle task and statistics task. - Download ucos_ii_xen_on_arm.zip and extract it to $(XEN_ROOT)/extras/ #cd ucos_ii/ #make #cp ucos.elf $(TFTP_ROOT) - Follow the steps to run mini-os. You can evaluate the uC/OS-II source code for FREE for 45 days, but a license is required when uC/OS-II is used commercially. The policy is as follows: uC/OS-II source and object code can be used by accredited Colleges and Universities without requiring a license, as long as there is no commercial application involved. In other words, no licensing is required if uC/OS-II is used for educational use. You need to obtain an 'Executable Distribution License' to embed uC/OS-II in a product that is sold with the intent to make a profit or if the product is not used for education or 'peaceful' research. For further information, please refer to the following site: www.micrium.com