CC2530 TIMER1 counter mode?

Hi,

The timers in CC2530 can only count with an external clock source (the system clock or a divided variant of that). The peripheral Timer 1 pins can be used (as output) to generate a pattern or (as input) to capture the counter value when an edge occurs on the input pin. This means that it is unfortunately not possible to use the counter to count external events as you suggested.

If your external events are sufficiently separated in time, you can use a GPIO interrupt to count the events (increment the counter in the ISR).

I made a typo here: The first sentence should of course be: The timers in CC2530 can only count with an internal clock source (the system clock or a divided variant of that).

Hi Hec,

I'm trying implement the Timer1(16bit)  in counter mode in cc2530.. and it has to just count the inetrnal clock cycles and gives interrupt at every second .

So I used The follwoing code but it didnt work;

Kindly ho through the below code..

pls let me know why it not going to the ISR function..?

main()

{

 halTimerInit();

halTimerIntEnable();

} 

HAL_ISR_FUNCTION(T1_ISR,T1_VECTOR)
{
  Function_todisplay();// Functiona has to called for every 2 sec

}

void halTimerInit(void)
{
 uint16 compareValue=0xFFFF;
 
  // Set prescaler divider value to 128
 T1CTL |= 0x0C;

  // Set compare value
    T1CC0H = HI_UINT16(compareValue);
 T1CC0L = LO_UINT16(compareValue);

    // clear interrupt pending flag, disable interrupt
 T1CTL &= ~0x10; // T1CTL.OVFIF = 0
    IEN1  &=  ~0x02; // IEN1.T1EN = 0
}

void halTimerIntEnable(void)
{
    IEN1 |=  0x02; // IEN1.T1EN = 1

 // Start timer in modulo mode
 T1CTL |= 0x02; // T1CTL.MODE = 10

}

void halTimer32kIntDisable(void)
{
     IEN1  &=  ~0x02; // IEN1.T1EN = 0
}