I'm testing the 9S08QG8
If I use a external crystal and generate a square wave I get a perfect wave.
__RESET_WATCHDOG(); // feeds the dog
But when I try to generate the same square wave with the internal clock the period have a
variation of 20 to 30 %.
I note that because using a digital osciloscope (TEK 210) is not easy to syncronize the wave.
You see successive periods increasing and decreasing its size
May be this variations are normal using the internal clock.
If I understood the trim procedure if for to achieve an exactly frecuency but not for to achieve stability
Someone made this experience?
For example Someone could comunicarce with SCI using the internal oscillator?