INTRODUCTION TO EMBEDDED SYSTEM DESIGN WEEK 11 NPTEL ASSIGNMENT SOLUTIONS...

 INTRODUCTION TO EMBEDDED SYSTEM DESIGN WEEK 11 NPTEL ASSIGNMENT SOLUTIONS

1) Which of the following is/are examples of half duplex?

answer) walkie-talkie, USB1.0

2) Which of the following is/are not true about UART?

answer) UART protocol requires 4 pins : RX , TX , clk and gnd

3) A UART system has bit time( time required to transmit a bit) equal to 52 microseconds and the protocol uses 8 data bits , 1 start bit , 1stop bit and does not have a parity bit. Choose the correct format representation  of the above mentioned UART system.

answer) 19200 8N1

4) How much time will it take to transmit 20 bytes of data using the UART interface if the UART  communication is specified by 4800-8-0-1?

answer) 41.66ms

5)Which of the following statements is true about SPI?

answer) a)it can have multiple devices i.e. one master and many slaves

            b) it requires 4 pins i.e. MISO, MOSI, SCK,CS/SS

6) If a capture occurs for timer A in MSP430, the interrupt flag________ is set in ________ register

answer) CCIFG TO TACCTLX

7) Which method is preferable to measure the unknown frequency of signal 1 and 2 respectively?

answer) both with  time period method

8) Why is it better to divide the  frequency of an external clock signal by two and process it further?

answer) So that the signal has equal HIGH and LOW times and thus the system has enough time to process it further either at rising edge or  falling edge.

9) What should  be the very first  step towards making any project from scratch?

answer) Deciding the aim and objective to the project

10) A diagram that is used for planning and scheduling tasks and activities y representing time on x axis and listing activities to be done on y axis is known as?

answer) Gantt Chart