Hello,
In the average assignments, the software controller chip outputs a high and low-level signal with a frequency of 100HZ at GPIO5. When we suddenly- circuit the load capacitance of the 40 MHz crystal oscillator, the output signal of GPIO5 changes to a signal of 10HZ- 20HZ, and the CPU seems to be working at a reduced frequency. What’s the reason? Why can the CPU still work?
I really appreciate any help you can provide.