/* * Copyright (c) 2006, Technical University of Munich * All rights reserved. * * Redistribution and use in source and binary forms, with or without * modification, are permitted provided that the following conditions * are met: * 1. Redistributions of source code must retain the above copyright * notice, this list of conditions and the following disclaimer. * 2. Redistributions in binary form must reproduce the above copyright * notice, this list of conditions and the following disclaimer in the * documentation and/or other materials provided with the distribution. * 3. Neither the name of the Institute nor the names of its contributors * may be used to endorse or promote products derived from this software * without specific prior written permission. * * THIS SOFTWARE IS PROVIDED BY THE INSTITUTE AND CONTRIBUTORS ``AS IS'' AND * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE * ARE DISCLAIMED. IN NO EVENT SHALL THE INSTITUTE OR CONTRIBUTORS BE LIABLE * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF * SUCH DAMAGE. * * This file is part of the Contiki operating system. * * @(#)$$ */ /** * \file * AVR specific definitions for the rs232 port. * * \author * Simon Barner * Daniel Willmann */ #ifndef __RS232_ATMEGA32__ #define __RS232_ATMEGA32__ /******************************************************************************/ /*** Includes */ /******************************************************************************/ #include /******************************************************************************/ /*** RS232 ports */ /******************************************************************************/ #define RS232_PORT_0 0 /******************************************************************************/ /*** Baud rates */ /******************************************************************************/ #if F_CPU == 16000000 /* Single speed operation (U2X = 0)*/ #define USART_BAUD_2400 416 #define USART_BAUD_4800 207 #define USART_BAUD_9600 103 #define USART_BAUD_14400 68 #define USART_BAUD_19200 51 #define USART_BAUD_28800 34 #define USART_BAUD_38400 25 #define USART_BAUD_57600 16 #define USART_BAUD_76800 12 #define USART_BAUD_115200 8 #define USART_BAUD_230400 3 #define USART_BAUD_250000 3 #define USART_BAUD_500000 1 #define USART_BAUD_1000000 0 #elif F_CPU == 8000000 /* Single speed operation (U2X = 0)*/ #define USART_BAUD_2400 207 #define USART_BAUD_4800 103 #define USART_BAUD_9600 51 #define USART_BAUD_14400 34 #define USART_BAUD_19200 25 #define USART_BAUD_28800 16 #define USART_BAUD_38400 12 #define USART_BAUD_57600 8 #define USART_BAUD_76800 6 #define USART_BAUD_115200 3 #define USART_BAUD_230400 1 #define USART_BAUD_250000 1 #define USART_BAUD_500000 0 #else #error "Please define the baud rates for your CPU clock: ATmega32 handbook p. \ 163-166 or set the rate in contiki-conf.h" #endif /******************************************************************************/ /*** Interrupt settings */ /******************************************************************************/ #define USART_INTERRUPT_RX_COMPLETE _BV (RXCIE) #define USART_INTERRUPT_TX_COMPLETE _BV (TXCIE) #define USART_INTERRUPT_DATA_REG_EMPTY _BV (UDRIE) /******************************************************************************/ /*** Receiver / transmitter */ /******************************************************************************/ #define USART_RECEIVER_ENABLE _BV (RXEN) #define USART_TRANSMITTER_ENABLE _BV (TXEN) /******************************************************************************/ /*** Register select */ /******************************************************************************/ #define USART_UCSRC_SEL _BV (URSEL) /******************************************************************************/ /*** Mode select */ /******************************************************************************/ #define USART_MODE_ASYNC 0x00 #define USART_MODE_SYNC _BV (UMSEL) /******************************************************************************/ /*** Parity */ /******************************************************************************/ #define USART_PARITY_NONE 0x00 #define USART_PARITY_EVEN _BV (UPM1) #define USART_PARITY_ODD _BV (UPM1) | _BV (UPM0) /******************************************************************************/ /*** Stop bits */ /******************************************************************************/ #define USART_STOP_BITS_1 0x00 #define USART_STOP_BITS_2 _BV (USBS) /******************************************************************************/ /*** Character size */ /******************************************************************************/ #define USART_DATA_BITS_5 0x00 #define USART_DATA_BITS_6 _BV (UCSZ0) #define USART_DATA_BITS_7 _BV (UCSZ1) #define USART_DATA_BITS_8 _BV (UCSZ1) | _BV (UCSZ0) // #define USART_DATA_BITS_9 (needs also UCSZ2 bit in UCSRnB) /******************************************************************************/ /*** Clock polarity */ /******************************************************************************/ #define USART_RISING_XCKN_EDGE 0x00 #define USART_FALLING_XCKN_EDGE _BV (UCPOL) #endif /* #ifndef __RS232_ATMEGA32__ */