First post and doubts to make code work.

[Ladrilloner]

Hey:

I a a new user to this forum (hi to all of you ) , so please forgive me if I am not posting this in the correct forum:

I am new to programing and this semester at uni we have a course where we are tought C.

My problem is the following: I have writen a function that is supposed to turn all the values in an array to 0 and then the microcontroller should print it on an LCD. I am using Atmel studio 7, the microcontroller is an Atmel328P and the setup is the following:

Shared album - Alvaro Soler Verdu - Google Photos

And this is my code. Thanks to everybody that reads or answeres!

#define F_CPU 16E6
#include <avr/io.h>
#include <stdio.h>
#include <util/delay.h>
#include "i2cmaster.h"
#include "ds1621.h"
#include "lcd.h"

void printnumbers1(void);
void reset_0(void);

    

int array[8]={1,0,0,1,1,0,0,0};

    
int main(void)
{
    lcd_init(); 
    
    DDRD  = 0xFF; //I/O board:PD4...7 as outputs, for LEDs
    DDRC  = 0xF0; //I/O board PC0...3 as inputs, for buttons
    PORTC = 0x3F; // Enable internal pull at PC0..3 inputs
    PORTD = 0x00; // Set output LEDs to off

        
    while(1)
    {
            


        printnumbers1();        
            reset();        
    }
                
}        
void printnumbers1(void)
{
    int i=0;
        for (i=7; i>=0; i--)            //the function that prints array
        {
            lcd_gotoxy(1,i+1);            
            printf("%d", array[i]);            
        }
}

void reset_0(void)
{    int u;
    if (PINC==0b00001110)
    {
    
        for (u=7;u>=0;u--)
        {
            array[u]=0;            
        }
        _delay_ms(300);
    }
}

[Salem]

Your display seems to show that printnumbers() works, is that correct?

So the real issue is why reset() doesn't do what you want?

Perhaps it's something to do with your function actually being called reset_0()