| 0,0 → 1,104 |
|---|
| /**************************************************************************** |
| * Copyright (C) 2009-2010 by Claas Anders "CaScAdE" Rathje * |
| * admiralcascade@gmail.com * |
| * Project-URL: http://www.mylifesucks.de/oss/c-osd/ * |
| * * |
| * 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 <avr/io.h> |
| #include <avr/interrupt.h> |
| #include <util/delay.h> |
| #include "main.h" |
| #include "usart0.h" |
| |
| #ifdef ANTENNATRACKTEST |
| |
| |
| #if !(ALLCHARSDEBUG|(WRITECHARS != -1)) |
| |
| |
| /* ########################################################################## |
| * USART0 stuff |
| * ##########################################################################*/ |
| |
| /** |
| * init usart1 |
| */ |
| void usart0_init() { |
| UBRR0H = ((F_CPU / (16UL * baud)) - 1) >> 8; |
| UBRR0L = (F_CPU / (16UL * baud)) - 1; |
| |
| // Enable receiver and transmitter; enable RX interrupt |
| UCSR0B = (1 << RXEN0) | (1 << TXEN0) | (1 << RXCIE0); |
| |
| //asynchronous 8N1 |
| UCSR0C = (1 << URSEL0) | (3 << UCSZ00); |
| } |
| |
| |
| /** |
| * send a single <character> through usart1 |
| */ |
| void usart0_putc(unsigned char character) { |
| // wait until UDR ready |
| while (!(UCSR0A & (1 << UDRE0))); |
| UDR0 = character; |
| } |
| |
| /** |
| * send a <string> throught usart0 |
| */ |
| void usart0_puts(char *s) { |
| while (*s) { |
| usart0_putc(*s); |
| s++; |
| } |
| } |
| |
| /** |
| * send a PGM<string> throught usart1 |
| */ |
| void usart0_puts_pgm(const char* string) { |
| while (pgm_read_byte(string) != 0x00) |
| usart0_putc(pgm_read_byte(string++)); |
| } |
| |
| /** |
| * transmit interrupt handler |
| * unused |
| */ |
| ISR(SIG_USART0_DATA) { |
| } |
| |
| /* |
| * receive data through usart1 |
| * portions taken and adapted from |
| * http://svn.mikrokopter.de/mikrowebsvn/filedetails.php?repname=FlightCtrl&path=%2Fbranches%2FV0.72p+Code+Redesign+killagreg%2Fuart0.c |
| */ |
| ISR(SIG_USART0_RECV) { |
| uint8_t c; |
| // catch the received byte |
| c = UDR0; |
| |
| // echo |
| UDR0 = c; |
| } |
| |
| |
| |
| #endif |
| |
| #endif // ANTENNATRACKTEST |