CC2530 32.768KHz ctystal

HI Mei.

Difficult to say without more information :-)

Can you share the code you are using to start the 32khz crystal.

Hi Per H,

/*****************************************
set system low clock
*****************************************/
void SET_LOW_CLOCK(source)                                
    {                                                   
         (source==1)?(CLKCONCMD |= 0X80):(CLKCONCMD &= ~0X80);
    }

void main(void)
{
  SET_LOW_CLOCK(0);

}

mei

Thank you!

0x80 = 0b10 000 000

OSC32K = 1 => 32kHz RCOSC is selected.

Try CLKCONCMD= 0x49.

/Fredrik

hi Fredrik,

in the sentence ： (source==1)?(CLKCONCMD |= 0X80):(CLKCONCMD &= ~0X80);

it executes this one: CLKCONCMD &= ~0X80;  => OSC32K = 0 => 32kHz XTAL is selected.

If I set  CLKCONCMD to 0x49, it means I chose 16MHz RCOSC. But I need 32MHz XTAL.

Thank you!

Of course, my bad.

But just for the purpose of debugging, try running the 32kHz XOSC when the 32 MHz clock off.

/Fredrik

OK. I will  try your suggestion.

Thank you!  Fredrik