i have been stm32F303VDT chip
i use DAM with ADC3 ,4 with Trigger tim2 channel 3
but I used timer2 so I must change trigger timer 3 .
so i changed timer 3 channel 4 but It is not executed.
The procedure is start DMA next timer Start
HAL_ADC_Start_DMA(&hadc3, (uint32_t*) ADC_I_Result, ADC_NUM);
HAL_ADC_Start_DMA(&hadc4, (uint32_t*) ADC_Q_Result, ADC_NUM);
HAL_TIM_PWM_Start (&htim3, TIM_CHANNEL_4);
why can i used it?