| 0,0 → 1,66 |
|---|
| /**************************************************************************** |
| * Copyright (C) 2011 by Claas Anders "CaScAdE" Rathje * |
| * admiralcascade@gmail.com * |
| * Project-URL: http://www.mylifesucks.de/oss/c-epilepsy/ * |
| * * |
| * This program is free software; you can redistribute it and/or modify * |
| * it under the terms of the GNU General Public License as published by * |
| * the Free Software Foundation; either version 2 of the License. * |
| * * |
| * This program is distributed in the hope that it will be useful, * |
| * but WITHOUT ANY WARRANTY; without even the implied warranty of * |
| * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the * |
| * GNU General Public License for more details. * |
| * * |
| * You should have received a copy of the GNU General Public License * |
| * along with this program; if not, write to the * |
| * Free Software Foundation, Inc., * |
| * 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. * |
| ****************************************************************************/ |
| |
| #include "usart1.h" |
| |
| #ifdef __AVR_ATmega644P__ |
| |
| /** |
| * init usart1 |
| */ |
| void usart1_init() { |
| UBRR1H = ((F_CPU / (16UL * USART1_BAUD)) - 1) >> 8; |
| UBRR1L = (F_CPU / (16UL * USART1_BAUD)) - 1; |
| |
| // Enable receiver and transmitter; enable RX interrupt |
| UCSR1B = (1 << RXEN1) | (1 << TXEN1) | (1 << RXCIE1); |
| |
| // set asynchronous mode |
| UCSR1C &= ~(1 << UMSEL11); |
| UCSR1C &= ~(1 << UMSEL10); |
| // no parity |
| UCSR1C &= ~(1 << UPM11); |
| UCSR1C &= ~(1 << UPM10); |
| // 1 stop bit |
| UCSR1C &= ~(1 << USBS1); |
| // 8-bit |
| UCSR1B &= ~(1 << UCSZ12); |
| UCSR1C |= (1 << UCSZ11); |
| UCSR1C |= (1 << UCSZ10); |
| |
| // set direction of RXD1 and TXD1 pins |
| // set RXD1 (PD2) as an input pin |
| PORTD &= ~(1 << PORTD2); |
| DDRD &= ~(1 << DDD2); |
| // set TXD1 (PD3) as an output pin |
| //PORTD |= (1 << PORTD3); |
| //DDRD &= ~(1 << DDD3); |
| |
| } |
| |
| ISR(USART1_TX_vect, ISR_BLOCK) { |
| } |
| |
| ISR(USART1_RX_vect, ISR_BLOCK) { |
| } |
| |
| |
| |
| #endif // __AVR_ATmega644P__ |