alt_timestamp_start return -1

[Altera_Forum]

Hi,  

 I have some problem at timerstamp. I already add timer at qsys and set timestamp at BSP editor.But it still not work.  I get return value -1. Do someone know where is wrong?

[Altera_Forum]

Did you press the generate button after you edited the BSP settings? 

 I can't see it clearly, but I think you set both your sys_clk_timer and timestamp_timer to be timer0? Can you disable the sys_clk_timer instead? Also remember to press the generate button.