How to stabilize the waveform signals of two different signal sources on an oscilloscope?

syb_8787

How to stabilize the waveform signals of two different signal sources on an oscilloscope? [Copy link]

I heard from others that phase locking and PID are required. I have no idea about this. Can anyone explain in detail how to write it using STM32?

maychang

[How to stabilize the waveform signals of two different signal sources on an oscilloscope? ]

For traditional oscilloscopes, the frequencies of the two signals must be integer multiples to be displayed stably. In fact, as long as the difference in the integer multiples is small, one waveform can be stable while the other one moves slowly on the screen.

maychang

【I heard others say that it is necessary to lock the phase】

[Phase Lock] After locking, the frequencies of the two signals will become integer multiples, so they can be displayed stably.

maychang

[Can someone explain in detail how to write it using STM32? ]

What to write with STM32? I don't know what you want to do.

rxjsn

If the frequency is an integer multiple, it can be displayed stably. Are you trying to tell me how to write a phase-locked loop using STM32?

chunyang

The original poster should make it clear what he wants to do. Use an oscilloscope to observe two signals of arbitrary frequencies? Use STM32 to generate two signals that can be observed by an oscilloscope? Use STM32 to process two signals for observation by an oscilloscope? These are very different...