__usart__.h File Reference

Header file for pid.c. More...

#include <asf.h>
#include <stdio.h>
#include <board.h>
#include <conf_board.h>
#include <util/delay.h>

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Macros
#define	BAUD   57600
#define	RX_BUFSIZE   120
#define	BRC   ((F_CPU/(16UL*BAUD)) - 1)

Functions
void	usart_init (void)

Detailed Description

Header file for pid.c.

• File: usart.h
• Compiler: GCC-AVR
• Supported devices: Tested on 328p
• AppNote: USART module driver

Author

Swarm robot graduation project workgroub
Mechatronics Program for the Distinguished
$Name$

Revision

456

$RCSfile$

Date

021-5

Definition in file __usart__.h.

Function Documentation

usart_init()

void usart_init

(

void

)

Initialize the USART module with

Parameters

BAUD

{
    UBRR0H = (uint8_t) (BRC >> 8); // baud
    UBRR0L = (uint8_t) BRC; // baud
 
    UCSR0B = (1 << TXEN0) | (1 << RXEN0); // enable rx and tx
    UCSR0C = (1 << UCSZ01) | (1 << UCSZ00); // clock
    //UCSR0A |= (1 << U2X0); // double speed
    
    stdin = stdout = &uart_str; // link stdin and stdout to uart
    
}

Referenced by board_init().

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