User guide

Nios II IDE Help System

MicroC/OS-II RTOS

MicroC/OS-II is a real-time, multitasking kernel for microprocessors and microcontrollers.

Altera provides the MicroC/OS-II real-time operating system (RTOS) as part of the Nios II

Embedded Design Suite. The Nios II IDE makes it easy to base your Nios II C/C++ application

project on MicroC/OS-II. When enabled, the MicroC/OS-II real-time kernel is part of the

Nios II system library.

Note: You can evaluate MicroC/OS-II at no charge using a Nios development board.

However, you must purchase a license to ship a commercial product based on MicroC/OS-

II.

MicroC/OS-II Thread-Aware Debugging

When debugging a MicroC/OS-II application, the debugger displays the current state of all

threads within the application, including backtraces and register values. You cannot use the

debugger to change the current thread, so it is not possible to use the debugger to change

threads or to single step a different thread. Thread-aware debugging does not change the

behavior of the application in any way.