Hello, I have following problem - part of my code: (I am using in my program - SPP protocol(Timer3)) .......... status=receiveData(user_prg_xdata); //INT_ENABLE(INUM_TIMER3,INT_OFF); if (status == SPP_RX_TIMEOUT) { YLED = LED_ON; } else if (status == SPP_RX_TOO_LONG) { BLED = LED_ON; } else if (status == SPP_RX_FINISHED) { GLED = LED_ON; } halWait(200,CC1010EB_CLKFREQ); //200ms GLED = LED_OFF; ........ The green led stay light - the program frozen on the "halWait" function. But when I use INT_ENABLE(INUM_TIMER3,INT_OFF); -dissable the interrupt from Timer3 the program works correct. Do you know where can be problem? Thank you, Peter