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Altera_Forum
Honored Contributor I
823 Views

Help with firts NIOS code

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
0 Kudos
3 Replies
Altera_Forum
Honored Contributor I
33 Views

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

you created it ? or using development kit's Qsys without change?
Altera_Forum
Honored Contributor I
33 Views

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
Honored Contributor I
33 Views

 

--- 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!
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