HAL_USART_Abort_IT() function

This procedure could be used for aborting any ongoing transfer (either Tx or Rx, as described by TransferType parameter) started in Interrupt or DMA mode. This procedure performs following operations : - Disable PPP Interrupts (depending of transfer direction) - Disable the DMA transfer in the peripheral register (if enabled) - Abort DMA transfer by calling HAL_DMA_Abort_IT (in case of transfer in DMA mode) - Set handle State to READY - At abort completion, call user abort complete callback This procedure is executed in Interrupt mode, meaning that abort procedure could be considered as completed only when user abort complete callback is executed (not when exiting function).