As you can see from the screen cut, I use GPTIMER0A to set a 1ms interrupt and in the ISR, I reverse the signal of DIO6. But when I use oscilloscope to check its precision, I find there is a 5us error which is large to me. And the as for a 20ms signal, there is a 150us error. The TIMER's clock is 48MHZ
So I want to ask what is the precision of the TIMER when it run in high frequency.
Wish you best.