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int.cpp
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/****************************************************************************
** INCLUDE
****************************************************************************/
#include "global.h"
/****************************************************************************
** INTERRUPT SERVICE ROUTINE
*****************************************************************************
** In the AT4809 ISR flags have to be cleared manually
****************************************************************************/
/****************************************************************************
** RTC Periodic Interrupt
*****************************************************************************
** Periodic interrupt generated by the RTC from it's independent clock source
****************************************************************************/
ISR( RTC_PIT_vect )
{
//----------------------------------------------------------------
// VARS
//----------------------------------------------------------------
//----------------------------------------------------------------
// INIT
//----------------------------------------------------------------
//----------------------------------------------------------------
// BODY
//----------------------------------------------------------------
//Set the System Tick
g_isr_flags.system_tick = true;
//----------------------------------------------------------------
// RETURN
//----------------------------------------------------------------
//Manually clear the interrupt flag
RTC.PITINTFLAGS = RTC_PI_bm;
}
/****************************************************************************
** USART3 RX Interrupt
*****************************************************************************
**
****************************************************************************/
ISR( USART3_RXC_vect )
{
//----------------------------------------------------------------
// VARS
//----------------------------------------------------------------
//Temp var
uint8_t rx_data_tmp;
//----------------------------------------------------------------
// INIT
//----------------------------------------------------------------
//----------------------------------------------------------------
// BODY
//----------------------------------------------------------------
//Fetch the data and clear the interrupt flag
rx_data_tmp = USART3.RXDATAL;
//Push byte into RS485 buffer for processing
AT_BUF_PUSH_SAFER( rpi_rx_buf, rx_data_tmp );
//----------------------------------------------------------------
// RETURN
//----------------------------------------------------------------
}