STM32G030P6T6 Timing Control for WS2812 Driver Initialization

[Diagoco1]

Hi,

I have read about the capabilities of the STM32G030P6T6 microcontroller, and they are truly excellent. Is it possible to implement any desired effect for WS2812 LEDs using this microcontroller without an HSE crystal?

Are there any limitations?

[AScha.3]

Hi,

>   ….  without an HSE crystal?

Sure . 

> Are there any limitations?

Nothing, thats not in the ds. 

So if using the HSI + PLL , to get up to 64M -if you need this ever- , just see the clock might be some percent off.

But for the LED timing, this should be not important.

[Andrew Neil]

Google* “STM32 WS2812” - there are plenty of tutorials & examples on the interwebs.

 

As with any other microntroller, the key here is in accurately creating the timings required by the WS2812.

So look at a WS2812 datasheet for the required timings & tolerances, and the STM32 datasheet for its internal oscillator specs.

You will always get better timing precision with a crystal than with internal RC oscillators.

 

* Other internet search engines are available.