topic Re: I have a problem with the printf fonction in S12 / MagniV Microcontrollers

I have a problem with the printf fonction

Juliendy — Tue, 06 Jul 2010 20:49:14 GMT

Hello,

I have a problem with the printf fonction.

I'm sorry for my bad english

My program is :

#include <hidef.h>

#include "derivative"

#include <stdio.h>

#include <termio.h>

int x=0;

int main(void)

{

for(;

{

if(x<20)

{

printf("%d\n",x);

x++;

return 0;

}

///////////////////////////////////////////////////////////////////////////////////////////

On HyperTerminal, I don't receive the printf.

I believe that my program is in the loop "while (!(SCI.SCxSR1 & 0x80) ) {};" in the termio.c. WHY ???

By default, what is the port used, SCI0 or SCI1 ?

How do I configure the connection in hyperterminal, knowing that I have a MC9S12DG128 ?

Best Regards

Julien

WadeH — Wed, 07 Jul 2010 00:22:12 GMT

I don't see any harware initialization: somewhere in your code should be a line like:

   Initialize_SCI();

.. or something similar, possibly including a baud-rate setting, parity-type, etc

Look into demo code for your CPU

CompilerGuru — Wed, 07 Jul 2010 04:32:20 GMT

The termio.c contains a routine TERMIO_Init for the setup, it might need to be adapted for the hardware.

Alternatively Processor Expert (or Device Initialization) can be used to setup the sci module.

Daniel

Juliendy — Thu, 08 Jul 2010 15:30:49 GMT

thank you for your answer, it's OK for the printf.
The baud rate was bad in TERMIO_Init().

Best Regards

Julien