Help with firts NIOS code

[Altera_Forum]

Hello, please with my first nios code. 

  # include "alt_types.h"# include "sys/alt_irq.h"# include "system.h"# include <stdio.h># include <unistd.h>     int main(void){  int a = 1000;    alt_printf("Probehl RESET, uz zase ziju!\n");  while (1){  alt_printf("AHOJ\n");  usleep(500000);  alt_printf("Tady NIOS II!\n");  usleep(500000);  alt_printf("%i\n", a);    }  return 0; }   variable a not print to jtaguart...why?  Thanks

[Altera_Forum]

which Qsys( or maybe SOPC builder ) do you use? 

you created it ? or using development kit's Qsys without change?

[Altera_Forum]

https://www.altera.com/en_us/pdfs/literature/hb/nios2/n2sw_nii5v2.pdf 

 See the description of alt_printf() on page 14-78.   Description The alt_printf() function provides a very minimal printf implementation for use with very small applications. Only the following format strings are supported: %x, %s, %c, and %%.   So, probably using "%i" is why it doesn't work for you.

[Altera_Forum]

--- Quote Start ---  https://www.altera.com/en_us/pdfs/literature/hb/nios2/n2sw_nii5v2.pdf  See the description of alt_printf() on page 14-78.   Description The alt_printf() function provides a very minimal printf implementation for use with very small applications. Only the following format strings are supported: %x, %s, %c, and %%.   So, probably using "%i" is why it doesn't work for you.  --- Quote End ---    Yes, problem solved, thanks!