embede system

Year -IV B.Tech II Semester

Subject –Embedded Real Time System

 1.(a) List three requirements of real-time systems and briefly describe each of them.

         Give examples of actual real-time systems to support your arguments.

     b) Write notes on following:

         i. Shared Memory

         ii. QNX.                                                                                     [3+2]

2. (a) De fine the following terms :  finite - state machines, concurrent processes,

          Real - Time systems and real-time operating systems.

     (b) Explain about Synchronization among Processes.                                 [3+2]

3. (a) Explain the steps in developing Applications using Real Time Operating System.

   (b) Compare and contrast RTOS Vs LINUX.                                                [2+3]

4. (a) Explain the importance of Semaphores in RTOS.

(b) Explain the difference between Semaphores and Mutex.               [3+2]

5. With suitable examples explain how to

   a) Send a signal to another Task

  (b) Block a signal from being delivered.                                            [3+2]

6. (a) What is IrDA interface? What are its advantages and limitations?

    (b)   With respect to embedded RTOS compare among the following :

     (i) Mailbox

     (ii) Message queue

     (iii) Pipes.                                                                                       [3+2]

                                                                                                Paper  Set  by B.Shravan Kumar

                                                                                                      ECE IV-II Semester