C:/usr/src/avr/plotter/usrat.c File Reference

#include <stdio.h>
#include <avr/io.h>
#include "usrat.h"

Go to the source code of this file.

Functions
void	usart_init (uint16_t baudval)
	Initialize USART, perform fdevopen with uart_putchar.
int	uart_putchar (char data)
	putchar() for USART.
int	uart_getchar ()
	getchar() for USART. Wait for data if not available.
uint8_t	uart_available ()
	Check data availability in USART buffer.
uint8_t	uart_getc ()
	Nonblocking, nonchecking getchar for USART. Use with care.
void	SIG_USART_RECV (void)

---

Function Documentation

void SIG_USART_RECV

(

void

)

Definition at line 74 of file usrat.c.

uint8_t uart_available

(

void

)

Check data availability in USART buffer.

Returns:

1 if buffer is not empty.

Definition at line 61 of file usrat.c.

uint8_t uart_getc

(

)

Nonblocking, nonchecking getchar for USART. Use with care.

Definition at line 66 of file usrat.c.

int uart_getchar

(

)

getchar() for USART. Wait for data if not available.

Returns:

value read.

See also:

uart_available()

Definition at line 53 of file usrat.c.

int uart_putchar

(

char

data

)

putchar() for USART.

Parameters:

data

character to print.

Definition at line 37 of file usrat.c.

void usart_init

(

uint16_t

baudval

)

Initialize USART, perform fdevopen with uart_putchar.

Parameters:

baudval

(F_CPU/(16*baudrate))-1

See also:

uart_putchar()

Definition at line 13 of file usrat.c.