I want to use led with following connection and i remember that I've seen this application somewhere on the Internet:3V3 - LED - RESISTOR - STM32 PINI've seen the max total current output of MCU then is there any max total input current of MCU?
actually, this code is one of the part which initiate uart. such as.. void begin(){ ~~ ~~ if (HAL_DMA_Init(&hdma_rx) != HAL_OK) { return IMU_INIT_FAILED; } __HAL_LINKDMA(&huart, hdmarx, hdma_rx); if (HAL_UART_Receive_DMA(&huart, ...