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Embedded and Real Time Systems Assignment 03, Assignments of Embedded Systems

University of Engineering and Technology Taxila (UETT)Embedded Systems

Embedded and Real Time Systems Assignment 03

Typology: Assignments

2020/2021

Uploaded on 01/13/2021

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12/11/2019 E&RTS
Assignment 4
Submitted By: -
Syed Saqib Iqbal (16-SE-37)
Submitted to: -
Mam Huma Ayub
University Of Engineering and Technology Taxila
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Download Embedded and Real Time Systems Assignment 03 and more Assignments Embedded Systems in PDF only on Docsity!

12/11/2019 E&RTS

Assignment 4

Submitted By: -

Syed Saqib Iqbal ( 16 - SE- 37 )

Submitted to: -

Mam Huma Ayub

University Of Engineering and Technology Taxila

Question 1: -

Write a C program to toggle bit 3 and bit 7 of PORTB and output of code must

be shown in proteus simulation using LEDs at pin 3 and 7 of PORTB.

Code: - #include <avr/io.h> int main(void) { /* Replace with your application code */ DDRB=0xFF; while (1) { PORTB=PORTB | 0b10001000; PORTB=PORTB & 0b01110111; } return 0; } OUTPUT: -

return 0; } OUTPUT: - Proteus Simulation: -

Question 3: -

Write a program to convert ASCII digits of ‘2’ and ‘9’ to packed BCD and display

them on PORTA.

Code: -

#include <avr/io.h> int main(void) { /* Replace with your application code */ unsigned char bcdbyte; unsigned char w='2'; unsigned char z='9'; DDRA=0xFF; w=w & 0x0F; w=w<<4; z=z & 0x0F; bcdbyte=w | z; PORTA=bcdbyte; return 0; } OUTPUT: -

Question 5: -

Write a C program to send your First and Last name to EEPROM.

Code: -

#include <avr/io.h> int main(void) { /* Replace with your application code */ while (EECR & (1<<EEWE)); EEDR= 'Ukasha Javed'; EECR |= (1<<EEMWE); EECR |= (1<<EEWE); return 0; }

OUTPUT: -

Question 6: -

Write a C program to take an input from PORTC bit 5 and send it PORTD bit 2.

Code: -

#include <avr/io.h> int main(void) { /* Replace with your application code */ DDRB=DDRB & 0b11011111; DDRD=DDRD | 0b00000100; while (1) { if ( PINB & 0b00100000) PORTD =PORTD | 0b00000100; else PORTD=PORTD & 0b0111111; } return 0; }

OUTPUT : -