Abstract

The USART_RX_vect is an interrupt handler that is called when a data is received using serial communication. This routine calls HardwareSerial::_rx_complete_irq().

Source Code

The USART_RX_vect is defined in hardware/arduino/avr/cores/arduino/HardwareSerial0.cpp as below.

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ISR(USART_RX_vect)
{
  Serial._rx_complete_irq();
}

The ISR() a macro to define an interrupt handler.

This function calls HardwareSerial::_rx_complete_irq().

Version

Arduino AVR Boards 1.8.6

Last Update

March 21, 2023