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Altera_Forum
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15 years ago

alt_getchar returning wrong value

int main() { int noia = 0; alt_putstr("Proc 2!\n"); /* get the mutex device handle */ alt_mutex_dev* mutex = altera_avalon_mutex_open( "/dev/mutex" ); /* acquire the mutex, setting the v...
Altera_Forum's avatar
Altera_Forum
Icon for Honored Contributor rankHonored Contributor
15 years ago

Hi, Are you new to C programs ?

Your printf will print hexadecimal value. because of "%x"

try 


      noia = alt_getchar();
      alt_printf("%c\n", noia);

But later in your code I see 
if (noia == 1)
!

If you type with keyboard, alt_getchar may return between 40 and 124 (decimal values).

So if you want you condition to be true you have to Press Alt with 0 then 0 then 1.

If you want your condition to be true when you type '1' with keyboard, try 

if (noia == '1')

noia should be declared as char (not "int").

Or this is an other problem.