hi everyone,
Good day. I have a problem in printing float values in atmel studio 6.2. I think it may be a BUG. And also ftoa function also not available in Atmel Studio 6.2. I am using Atmega 32 with 8MHz crystal. And my code is:
/*
* Float_Bug.c
*
* Created: 12/11/2014 9:57:54 AM
* Author: Dev5
*/
#define F_CPU 8000000UL // Atmega32 with clock 8MHz
#include <avr/io.h>
#include <avr/pgmspace.h>
#include <stdio.h>
#include <util/delay.h>
void uart0_init(void)
{
UCSRA=0x00;
UCSRB=0x18;
UCSRC=0x06;
UBRRH=0x00;
UBRRL=0x33;
}
void transmitByte( unsigned char data )
{
while ( !(UCSRA & (1<<UDRE)) )
; /* Wait for empty transmit buffer */
UDR = data; /* Start transmition */
}
void transmitString(char* string)
{
while (*string)
transmitByte(*string++);
}
int main(void)
{
float data_i_f;
float data_f = 1.1;
unsigned int data_i = 22;
char temp[20];
uart0_init();
_delay_ms(500);
transmitString("\nin main");
sprintf(temp,"\ndata_f=%f",data_f);
transmitString(temp);
_delay_ms(200);
data_i_f = data_i / 10.0;
sprintf(temp,"\ndata_i_f=%f",data_i_f);
transmitString(temp);
while(1)
{
//TODO:: Please write your application code
}
}And the result i am getting is:
in main
data_f=?
data_i_f=?
.