Question

can you please solve in c and clear

1 - General purpose eneral purpose 1/0 [30 pts re going to use the DDR, PORT, and PIN registers from your AVR device ions are the same as your AVR device). Assume that your AVR has. LED2) connected to pins 0, 1, 2 of Port C, respectively. In this question, you are going (the register definitions are the san • I pushbutton connected to pin 3 and Port C • 3 LEDs (LEDO, LEDI, LED2) connected to pins 0, Write a C program using the skeleton code below that: Runs continuously, Sets the pushbutton as a pull-up input, nits the number of times the pushbutton is pressed (should be initialized to 0), Controls the LEDs based on the number of times the pushbutton is pressed as follows. • LED2, LEDI, LEDO should correspond to number of times the button is pressed modulo 8 o For example, if the button is pressed 5 times (since the binary representation of 5 is 101), (LED2, LEDI, LEDO) should correspond to 101, i.e. LED2 should be ON, LEDI should be OFF, and LEDO should be ON. You have to implement two separate parts (shown by comments in bold font): • Initialization of ports and pins (input vs. output, pull-up enable, etc.). • Main loop that runs continuously and controls the LEDs. Note: You can ignore button bounce effects. #include <avr/io.b> int main() { //Initialization of ports and pins while(1) 7/Main loop that runs continuously

Answer 1

Answer : please up vote or comment for any query i will update the same . Thanks.

Note : ---- please disable JTAG using FUSE bit while compiling program or manually setting fuse bit otherwise program will not work on PORTC .

Program Plan :

1. set Switch as INPUT and turn on pull up resistor

2. set OUTPUT all three LED PINS

3. check for switch PIN went LOW to TURN ON LED

4. increment count variable when switch pressed and write count value to PORTC

Program :

#include <avr/io.h>
#include <util/delay.h>

void PORTInit(void);

int main(void)
{
int count=0;
PORTInit();
  
  
while(1) //infinite loop
{
if(PINC & (1<<PC3) == 0) //If switch is pressed detect LOW
{
count++;//increment count
PORTC=count;//write switch counter to port c
  
PORTC|=(1<<PC3); //above line may reset pull up so re initialize
if(count==8) //more than 8 will not affect PORTC LED PINS so again zero
{
count=0;   
}
  
_delay_ms(300); //300 milli second delay for debounce
}
}
}

void PORTInit(void)
{
DDRC|=(1<<PC0)|(1<<PC1)|(1<<PC2); //set LED0 ,LED1 and LED2 as output
DDRC&=~(1<<PC3); //set switch as input PORTC pin3
PORTC|=(1<<PC3); //pull up enable for switch
  
}