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Assignment No. 02 (GRADED) Semester: Fall 2013 CS609: System Programming-Due Date: 9/12/2013

Assignment No. 02
Semester: Fall 2013
System Programming-CS609

 

Total Marks: 20

 

Due Date: 09/Dec/2013

Graded Assignment

Instructions:                          

Please read the following instructions carefully before submitting assignment:

 

  • You will submit your assignment before or on due date on VU-LMS.
  • Assignment should be completed by your own efforts it should not be copied from internet, handouts or books.
  • You should submit your .doc File via assignment interface at VU-LMS.
  • Assignment sent via Email will not be replied and accepted in any case.
  • If the submitted assignment does not open or file is corrupt, it will not be marked.
  • You will submit solution only in document (.doc or .docx) File.

 

Objectives:

 

To understand the use of ISR and its services.

 

 

For any query about the assignment, contact at cs609@vu.edu.pk

Assignment Questions

 

Question 1:                                                                                                                               Marks 10     

Question 1:

Serial port contains a special chip for input/output which can communicate in two different modes. Explore and describe these modes and which one is better in the serial communication.

Note: Solutions containing the image of any text will reward zero marks.

Question 2:                                                                                                                               Marks 04     

Data is written at UART internal Transmitter Holding Register. What do you think is the role of Transmit Shift Register and TxD line during this write operation?

 

Question 3:                                                                                                                               Marks 06     

DTE wants to communicate with the DCE using RS232C Protocol. How does this communication start and end?  Identify the steps involved from the starting signal to ending signal between DTE and DCE device.

 

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sir,
Serial port contains a special chip for input/output which can communicate in two different modes. Explore and describe these modes and which one is better in the serial communication.
my question is about the question#1 of assignment #2 ..kindly guide me about the given statement are we write about the serial communication modes which are asynchronous and synchronous ???or we have write about special chip which is  UART chip and it modes
 
regards!
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Other Students' Comments: 0

Instructor's Reply:
Read the question carefully. You have been asked about the modes of special chip not the modes of serial communication. Think on it, and find the answer. (very easy if you know about that chip)


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The difference between Asynchronous and Synchronous is that Synchronous is the more efficient method of PC communication. However Asynchronous is the most common method of communication used for email applications, internet access and networking. Synchronous is usually used for transmission of large data bocks.

JazakAllah asim 

anyone plz tell me which mode is better for serial communication?

Asynchronous!

plz discuss about q2 & q3 as well!

Asynchronous or synchronous? 

Two modes:
1. 25-pin D-type connector (DB-25)
2. 9-pin D-type connector (DB-9)

ye to uart k hen or mere kheyaal me uart is the input/output chip that is used by serial port.

 yar i am in confusion plzz clear it

UART is attached with computer and perform serial communication

Modem attached with UART using RS232C

. RS-232 standard supports two types of connectors’ 25-pin D-type connector (DB-25) and a 9 pin D type connector (DB-9).

There are two modes that serial chip used for input/output operation


1. 25-pin D-type connector (DB-25)
2. 9-pin D-type connector (DB-9)

I think they are type of connectors not modes. Modes might be Asynchronous or synchronous.

yr lms man problem a rha ha kal grace tha assignment ka kia ho ga aj b error ha open nai ho rha ha ub kia ho ga expire ho jay ge????????//

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