Problem using STM32F411 ADC,DMA, USB virtual com and HAL_ADC_ConvHalfCpltCallback
Hello everyone, I'm trying to develop a simple DAQ, most of the code is generated by stm32cubemx then I just added two callback (HAL_ADC_ConvHalfCpltCallback and HAL_ADC_ConvCpltCallback) to send the half buffer data by the USB virtual com, pretty s...