stm32 - STM32F7: ADC DMA transfer only works once - Stack Overflow
I used ADC+DMA on STM32F3's successfully, but I cannot get it to work on this F7. The clock for GPIOA gets enabled, and PA3 is set to analog input. Browse other questions tagged stm32 dma adc stm32f7 nucleo or ask your own question.
STM32 ADC voltage monitor - embedded - experiments
The ADC of the STM32F3 is a complex block and as many modes. STM32F30x ADC modes and application shows the different configurations. In this case we can start with a simple single channel in continuous mode like the example in the firmware library.