Contiki 2.6
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00001 /* 00002 * Copyright (c) 2006, Technical University of Munich 00003 * All rights reserved. 00004 * 00005 * Redistribution and use in source and binary forms, with or without 00006 * modification, are permitted provided that the following conditions 00007 * are met: 00008 * 1. Redistributions of source code must retain the above copyright 00009 * notice, this list of conditions and the following disclaimer. 00010 * 2. Redistributions in binary form must reproduce the above copyright 00011 * notice, this list of conditions and the following disclaimer in the 00012 * documentation and/or other materials provided with the distribution. 00013 * 3. Neither the name of the Institute nor the names of its contributors 00014 * may be used to endorse or promote products derived from this software 00015 * without specific prior written permission. 00016 * 00017 * THIS SOFTWARE IS PROVIDED BY THE INSTITUTE AND CONTRIBUTORS ``AS IS'' AND 00018 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 00019 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 00020 * ARE DISCLAIMED. IN NO EVENT SHALL THE INSTITUTE OR CONTRIBUTORS BE LIABLE 00021 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 00022 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 00023 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 00024 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 00025 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 00026 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 00027 * SUCH DAMAGE. 00028 * 00029 * This file is part of the Contiki operating system. 00030 * 00031 * @(#)$$ 00032 */ 00033 00034 /** 00035 * \file 00036 * AVR specific definitions for the rs232 port. 00037 * 00038 * \author 00039 * Simon Barner <barner@in.tum.de 00040 */ 00041 00042 #ifndef __RS232_ATMEGA644__ 00043 #define __RS232_ATMEGA644__ 00044 /******************************************************************************/ 00045 /*** Includes */ 00046 /******************************************************************************/ 00047 #include <avr/io.h> 00048 00049 /******************************************************************************/ 00050 /*** RS232 ports */ 00051 /******************************************************************************/ 00052 #define RS232_PORT_0 0 00053 00054 /******************************************************************************/ 00055 /*** Baud rates */ 00056 /******************************************************************************/ 00057 #if F_CPU == 16000000 00058 /* Single speed operation (U2X = 0)*/ 00059 #define USART_BAUD_2400 416 00060 #define USART_BAUD_4800 207 00061 #define USART_BAUD_9600 103 00062 #define USART_BAUD_14400 68 00063 #define USART_BAUD_19200 51 00064 #define USART_BAUD_28800 34 00065 #define USART_BAUD_38400 25 00066 #define USART_BAUD_57600 16 00067 #define USART_BAUD_76800 12 00068 #define USART_BAUD_115200 8 00069 #define USART_BAUD_230400 3 00070 #define USART_BAUD_250000 3 00071 #define USART_BAUD_500000 1 00072 #define USART_BAUD_1000000 0 00073 #elif F_CPU == 8000000 00074 /* Single speed operation (U2X = 0)*/ 00075 #define USART_BAUD_2400 207 00076 #define USART_BAUD_4800 103 00077 #define USART_BAUD_9600 51 00078 #define USART_BAUD_14400 34 00079 #define USART_BAUD_19200 25 00080 #define USART_BAUD_28800 16 00081 #define USART_BAUD_38400 12 00082 #define USART_BAUD_57600 8 00083 #define USART_BAUD_76800 6 00084 #define USART_BAUD_115200 3 00085 #define USART_BAUD_230400 1 00086 #define USART_BAUD_250000 1 00087 #define USART_BAUD_500000 0 00088 #else 00089 #error "Please define the baud rates for your CPU clock: ATmega644 handbook p. \ 00090 187-190 or set the rate in contiki-conf.h" 00091 #endif 00092 00093 00094 /******************************************************************************/ 00095 /*** Interrupt settings */ 00096 /******************************************************************************/ 00097 #define USART_INTERRUPT_RX_COMPLETE _BV (RXCIE0) 00098 #define USART_INTERRUPT_TX_COMPLETE _BV (TXCIE0) 00099 #define USART_INTERRUPT_DATA_REG_EMPTY _BV (UDRIE0) 00100 00101 /******************************************************************************/ 00102 /*** Receiver / transmitter */ 00103 /******************************************************************************/ 00104 #define USART_RECEIVER_ENABLE _BV (RXEN0) 00105 #define USART_TRANSMITTER_ENABLE _BV (TXEN0) 00106 00107 /******************************************************************************/ 00108 /*** Mode select */ 00109 /******************************************************************************/ 00110 #define USART_MODE_ASYNC 0x00 00111 #define USART_MODE_SYNC _BV (UMSEL00) 00112 00113 /******************************************************************************/ 00114 /*** Parity */ 00115 /******************************************************************************/ 00116 #define USART_PARITY_NONE 0x00 00117 #define USART_PARITY_EVEN _BV (UPM01) 00118 #define USART_PARITY_ODD _BV (UPM01) | _BV (UPM00) 00119 00120 /******************************************************************************/ 00121 /*** Stop bits */ 00122 /******************************************************************************/ 00123 #define USART_STOP_BITS_1 0x00 00124 #define USART_STOP_BITS_2 _BV (USBS) 00125 00126 /******************************************************************************/ 00127 /*** Character size */ 00128 /******************************************************************************/ 00129 #define USART_DATA_BITS_5 0x00 00130 #define USART_DATA_BITS_6 _BV (UCSZ00) 00131 #define USART_DATA_BITS_7 _BV (UCSZ01) 00132 #define USART_DATA_BITS_8 _BV (UCSZ01) | _BV (UCSZ00) 00133 // #define USART_DATA_BITS_9 (needs also UCSZ2 bit in UCSRnB) 00134 00135 /******************************************************************************/ 00136 /*** Clock polarity */ 00137 /******************************************************************************/ 00138 #define USART_RISING_XCKN_EDGE 0x00 00139 #define USART_FALLING_XCKN_EDGE _BV (UCPOL0) 00140 00141 #endif /* #ifndef __RS232_ATMEGA644__ */