Uno R4 problem with FastLED and WS2811

[ocack]

Hello, this is my experience with a Arduino UNO R4, A WS2811 strip led and FastLed.
I posted this issue on git :
Update T1H and T0H timing to fix flicker on UNO R4 by sparky650 · Pull Request #1554 · FastLED/FastLED (github.com)

Hello the community,

Here is the context:
I have an Arduino R3 UNO that controls succesfully a WS2811 Led strips by using FastLed 3.6.0
The arduino has also to receive MIDI messages through a shield.
All works pretty good excepted the loss of some MIDI messages but this is not the subject and it's actually a well-known issue
Interrupt-problems

Here is the issue:
I have recently bought an Arduino R4 Minima for replacing my R3 (and avoiding interrupt problems on MIDI).
Next, I have installed the "Arduino UNO R4 Boards" to the Arduino IDE
I quickly had the well-known compilation error (platform R4 is not yet supported by FastLed)
Thus, I had to install the non official FastLed release "renesas: initial porting for UNO R4" #1523

All was compiling without error but the strip led was flickering randomly.
Then, I've found this topic and try the sparky650's fix.
But it has not solved the issue for my case
Note that we haved tried the fix by compiling our sketch with chipset WS2811, WS2811_400, WS2812 and WS2812B
We also tried with the sketch "FirstLight.ino" example attached in FastLed library

Conclusion:
It seems that this fix doesn't solve the flickering issue when using an Arduino R4 Minima and WS2811 strip led
I am open for trying any advice useful for potentially fix the Issue.
I own a Arduino R4 Minima and WS2811 strip leds.

Regards

[UKHeliBob]

Topic split from another topic. (R4 Wifi WS2811 Library) Please do not add your own questions to the end of other people's topics.

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[ocack]

@How to get the best out of this forum

Being new here you might think this is having rules for the sake of rules, but that is not the case. If you don’t follow the guidelines all that happens is there is a long exchange of posts while we try to get you to tell us what we need in order to help you, which is fru…

Sorry, I beleived it would be helpfull to share my experience to the end of the appropiate topic R4 Wifi WS2811 Library - Community / General Discussion - Arduino Forum

Thank you for the splitting.
Regards