7/17/2019 usart

1/2

/** USART.c** Created: 21/04/2015 03:37:23 PM* Author: Toshiba*/

#include

void USART_Init(unsigned int ubrr);void USART_Transmit(unsigned char data);unsigned char USART_Receive( void );

int main(void){

DDRC=0x03;USART_Init(51);

while(1) {

unsigned char a=USART_Receive();if(a=='A')PORTC=0x01;

else if(a=='B')PORTC=0x02;

elsePORTC=0x00;

}}

// func declaration

//USART init,transmitt, receivervoid USART_Init( unsigned int ubrr){

/* Set baud rate */UBRRH = (unsigned char)(ubrr>>8);UBRRL = (unsigned char)ubrr;/* Enable receiver and transmitter */UCSRB = (1

7/17/2019 usart

2/2

;/* Get and return received data from buffer */return UDR;

}