Other Parts Discussed in Thread: CC430F5137
Hi guys,
I am trying to use TA0 of a cc430f5137 to generate delays. I clock it from SMCLK (which in my case is 12MHz) and all I do in the initialization routine is the following:
{
TA0CTL |= TACLR; /* Set the TACLR */
/* Clear all settings */
TA0CTL = 0x0;
/* Select the clk source to be - SMCLK */
TA0CTL |= TASSEL_2;
}
The compare output for TA0 CCR0 is maped to P3.1. I have the P3SEL set to 0x00 so I could use P3.1 for other things.
However as soon as I set the clock source and before even I start the timer in up mode the P3.1 pin starts toggling at about 22kHz.
In other words, as soon as the above code executes, P3.1 gets going.
First of all I would have expected that even if the timer were going, since I have chosen to use P3.1 as a general I/O pin, nothing should be coming out on the pin (unless I control it as an I/O ) ,
and also since I haven't yet initialized TA0R and TA0CCR0 and haven't started the timer yet why is the compare output toggling?
What am I missing?
Thanks.
Cheers:
Jack.
