usart buffer to spi buffer [atmega]

[hayowazzup]

I wish to use use usart to pass the data to the spi buffer using interrupt at a frequency of 4.8k.

I was wondering if this code is ok.

ISR (USART_RXC_vect) {
	SPDR = UDR;
	while(!(SPSR & (1<<SPIF))); 
	;
}

 

[Joeisi]

It appears to be fine other than the extra colon on line 4. That does not need to be there.

 

[hayowazzup]

If the Uart interrupt is served at 9600 baud rate without a break, would there be bits missing by the uart as the data has to wait until SPI transmission complete.