convert int to char dspic30f

K

kenobe

New Member

• Oct 9, 2007

• #1

Hi
The mplab c30 compiler does not support itoa() function.
how do I change a hex number ie 0x55 to become a char '55' without using the printf().
Thanks

 

P

Pommie

Well-Known Member

Most Helpful Member

• Oct 9, 2007

• #2

There is probably some easier way but this gets the job done,

Code:

	intVal=0x34;
	charout[0]=(intVal>>4)+0x30;
	charout[1]=intVal&0x0f+0x30;

Mike.

 

K

kenobe

New Member

• Oct 10, 2007

• #3

Hi Pommie
Thanks for your help.
but what I need is charout[0] = 55 , not charout[0]=5, charout[1]=5

 

P

Pommie

Well-Known Member

Most Helpful Member

• Oct 10, 2007

• #4

Isnt't that just

charout=(char)intVal;

or even,

charout=intVal&0xff;

Mike.

 

K

kenobe

New Member

• Oct 10, 2007

• #5

I tried that too, but mplab c30 compiler does not work with casting and masking ,so it still does not solve the problem.

 

P

Pommie

Well-Known Member

Most Helpful Member

• Oct 10, 2007

• #6

kenobe said:

I tried that too, but mplab c30 compiler does not work with casting and masking ,so it still does not solve the problem.

Click to expand...

I found this hard to believe and so, I just tried the following,

Code:

#include <p30f2010.h>

unsigned int x;
unsigned char outchar;

int main(void){
	x = 0x45;
	outchar=(char)x;
	x = 0x45;
	outchar=x&0xff;
	x = 0x45;
	outchar=x;
	while(1);
}

It did exactly what I expected it to do.

Maybe you should post an example of what doesn't work.

Mike.