Hello,
I'm investigating about how drive a string of this type of LED:
https://cdn-shop.adafruit.com/datasheets/WS2812.pdf
These LED are driven is "Serial" RGB data.
But this could up to 800Khz.
Is any body has already drive this LED with a Kinetis (For me a K60 under MQX 4.2)?
Which method could be beter?
(Gpio, SPI, other??)
With/Without DMA?
The aim is to have CPU charge lower has possible!..
Thank
I'm using DMA (see NeoShield: WS2812 RGB LED Shield with DMA and nRF24L01+ | MCU on Eclipse ) or FlexIO (see NXP FlexIO Generator for the WS2812B LED Stripe Protocol | MCU on Eclipse ).
I hope this helps,
Erich
Hello
I will try with the first exemple (My Target K60 not have FlexIO)
I must adapt tis with my plateforme (MQX 4.2 on K60)
Thank