?? uart_lib.h
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/**
* @file uart_lib.h,v
*
* Copyright (c) 2004 Atmel.
*
* Please read file license.txt for copyright notice.
*
* @brief This file contains Uart lib header file.
*
* @version 1.14.4.4 at90usb128-demo-cdc-1_0_3
*
* @todo
* @bug
*/
#ifndef _UART_LIB_H_
#define _UART_LIB_H_
/*_____ I N C L U D E - F I L E S ____________________________________________*/
#include "uart_drv.h"
/*_____ D E F I N I T I O N S ______________________________________________*/
#ifndef UART_CONFIG
#define UART_CONFIG MSK_UART_8BIT
#endif
#ifndef BAUDRATE
#error You must define BAUDRATE in config.h
#define BAUDRATE 999
#endif
#define AUTOBAUD 0
#if BAUDRATE == AUTOBAUD
#define Uart_set_baudrate(bdr) autobaud()
#include "modules/autobaud/autobaud.h"
#else
#include "lib_mcu/uart/uart_bdr.h"
#endif
/*_____ D E C L A R A T I O N ______________________________________________*/
/*_____ M A C R O S ________________________________________________________*/
/*_____ P R O T O T Y P E S ____________________________________________________________*/
/**
* @brief This function configures the UART configuration and timming following
* the constant definition of BAUDRATE and enables the UART controller.
*
* @pre before calling this function some declaration must be define in config.h:\n
* - FOSC Frequency of crystal in kHz (mandatory)Standard crystals available
* - BAUDRATE Baudrate in bit per second used for UART configuration (mandatory)
* - UART_CONFIG : (by default 8 bits| 1 bit stop |without parity)
*
*/
bit uart_init (void);
/**
* @brief This function allows to send a character on the UART
*
* @param uc_wr_byte character to print on UART.
*
* @return character sent.
*
* @par Note:
* the type p_uart_ptchar and r_uart_ptchar can be define to macth with a printf
* need.
*
*/
r_uart_ptchar uart_putchar (p_uart_ptchar uc_wr_byte);
/**
* @brief This function allows to get a character from the UART
*
* @return character read.
*
*/
char uart_getchar (void);
/**
* @brief This function allows to inform if a character was received
*
* @return True if character received.
*
*/
bit uart_test_hit (void);
#endif /* _UART_LIB_H_ */
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