Testing the 32kHz Watch Crystal

You are reading a single comment by @Gordon and its replies. Click here to read the full conversation.

•

Gordon
Sure - there's nothing built-in, but it's what I use for testing:
```
function getClockSource() {
  return ["NONE","LSE","LSI","HSE"][((peek32(0x40021020)&768)>>8)];
}
getClockSource();
```
It checks the actual registers in the chip to see what it's set to.

•

AntiCat in reply to @Gordon

Thank you Gordon!

I listed the meaning of the abbreviations below, for any one else who might also use the snippet:
LSE = Low-speed external user clock
LSI = Low-speed internal
HSE = High-speed external user clock

About

Avatar for Gordon @Gordon started