93 lines
2.6 KiB
C
93 lines
2.6 KiB
C
/*
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ChibiOS/RT - Copyright (C) 2006-2007 Giovanni Di Sirio.
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This file is part of ChibiOS/RT.
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ChibiOS/RT is free software; you can redistribute it and/or modify
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it under the terms of the GNU General Public License as published by
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the Free Software Foundation; either version 3 of the License, or
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(at your option) any later version.
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ChibiOS/RT is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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GNU General Public License for more details.
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You should have received a copy of the GNU General Public License
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along with this program. If not, see <http://www.gnu.org/licenses/>.
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*/
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/**
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* @file ports/AVR/avr_serial.h
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* @brief AVR Serial driver macros and structures.
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* @addtogroup AVR_SERIAL
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* @{
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*/
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#ifndef _AVR_SERIAL_H_
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#define _AVR_SERIAL_H_
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/**
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* @brief Serial buffers size.
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* @details Configuration parameter, you can change the depth of the queue
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* buffers depending on the requirements of your application.
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* @note The default is 32 bytes for both the transmission and receive buffers.
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*/
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#if !defined(SERIAL_BUFFERS_SIZE) || defined(__DOXYGEN__)
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#define SERIAL_BUFFERS_SIZE 32
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#endif
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/**
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* @brief Default bit rate.
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* @details Configuration parameter, at startup the UARTs are configured at
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* this speed.
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* @note It is possible to use @p SetUART() in order to change the working
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* parameters at runtime.
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*/
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#if !defined(DEFAULT_USART_BITRATE) || defined(__DOXYGEN__)
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#define DEFAULT_USART_BITRATE 38400
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#endif
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/**
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* @brief USART0 driver enable switch.
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* @details If set to @p TRUE the support for USART0 is included.
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* @note The default is @p FALSE.
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*/
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#if !defined(USE_AVR_USART0) || defined(__DOXYGEN__)
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#define USE_AVR_USART0 FALSE
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#endif
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/**
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* @brief USART1 driver enable switch.
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* @details If set to @p TRUE the support for USART1 is included.
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* @note The default is @p TRUE.
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*/
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#if !defined(USE_AVR_USART1) || defined(__DOXYGEN__)
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#define USE_AVR_USART1 TRUE
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#endif
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/**
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* @brief Macro for baud rate computation.
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* @note Make sure the final baud rate is within tolerance.
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*/
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#define UBRR(b) ((F_CPU / (b << 4)) - 1)
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#ifdef __cplusplus
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extern "C" {
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#endif
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void serial_init(void);
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void usart0_setup(uint16_t brr, uint8_t csrc);
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void usart1_setup(uint16_t brr, uint8_t csrc);
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#ifdef __cplusplus
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}
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#endif
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/** @cond never*/
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extern FullDuplexDriver SER1, SER2;
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/** @endcond*/
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#endif /* _AVR_SERIAL_H_ */
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/** @} */
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