Resolved! TIM4 counter stops when ADC1 DMA less than 3 channels used.
I know this is very weird behavior but it is quite easily reproduceable error. I am running Windows 11 on a laptop.CubeMX version : 6.9.1CubeIDE version : 1.13.1Board I am using is this. Looks like genuine STM32F103C8T6 chip.I could upload USB_DEVICE...