@TSchr.1​ I find the same probloms when I use 103C8 to drive WS2812!My cube version is 5.6.0. and it worked when I use CH3@TIM4, but failed in CH4When you set DMA in cubemx, you can only chose TIM4_UP, not TIM4_CH4 in DMA Reguest, so I think this may...