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System Description

4 © PHYTEC America LLC 2009 L-718e_2

2.5 Micrium µC/OS-II Real-Time Kernel

The Micrium μC/OS-II Real-Time Kernel is a highly portable, ROMable, very scalable, preemptive

real-time, multitasking kernel (RTOS) for microprocessors and microcontrollers. µC/OS-II can

manage up to 255 tasks and provides the following services:

 Semaphores

 Mutual Exclusion Semaphores (to reduce priority inversions)

 Event Flags

 Message Mailboxes

 Message Queues

 Task Management (Create, Delete, Change Priority, Suspend/Resume etc.)

 Fixed Sized Memory Block management

 Time Management

 Timer Management

µC/OS-II runs on a large number of processor architectures.

µC/OS-II Kernel Awareness Plug-In displays µC/OS-II's internal data structures in a convenient series

of Windows integrated with the C SPY Debugger within the IAR Embedded WorkBench

. This

provides information about each of the active tasks in the target application, about each semaphore,

mutex, mailbox, queue and event flag group along with a list of all the tasks waiting on these kernel

objects, and more. This functionality supports testing and debugging applications.

For more information on the Micrium tools visit their website at: www.micrium.com

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