Can not find file "altera_avalon_timer.h"

Hi Everybody,

I have got the problem when finding the solution to measure performance of C program on NiosII.

Here is the example code that I have followed an example in Nios II handbook:

# include "sys/alt_timestamp.h"

# include "alt_types.h"

int main(void)

{

int the;

double sinLookup[Thetamax];

double cosLookup[Thetamax];

alt_u32 time1;

alt_u32 time2;

time1 = alt_timestamp();

//Make a sin and cos lookup-table for performance improvement

for(the=0;the<Thetamax;the++)

{

sinLookup[the] = sin(the*PI/180);

cosLookup[the] = cos(the*PI/180);

}

time2 = alt_timestamp();

printf ("time in func1 = %u ticks\n",(unsigned int) (time2 - time1));

printf ("Number of ticks per second = %u\n",(unsigned int)alt_timestamp_freq());

}//main(void)

For Hardware, I added an Interval Timer on SOPC Builder.

The problem happened when I compiled this code to run on Nios. There was three errors:

"/cygdrive/c/altera/11.0sp1/nios2eds/components/altera_hal/HAL/inc/sys/alt_timestamp.h:43:33: altera_avalon_timer.h: No such file or directory"

"undefined reference to `alt_timestamp' "

"undefined reference to `alt_timestamp_freq' "

I have checked on directory "/altera/11.0sp1/nios2eds/components/altera_hal/HAL/inc", the file "altera_avalon_timer.h" does not exist.

I am using Quartus v11 sp1, Nios II v11 sp1.

If somebody know what my problem is, could you please show me the solution for this problem ?

Thanks in advance,

Khai.