/* * * mur.sat * * Somewhen in the year 2012, mur.at will have a nano satellite launched * into a low earth orbit (310 km above the surface of our planet). The * satellite itself is a TubeSat personal satellite kit, developed and * launched by interorbital systems. mur.sat is a joint venture of mur.at, * ESC im Labor and realraum. * * Please visit the project hompage at sat.mur.at for further information. * * * Copyright (C) 2011 Christian Pointner * * This file is part of mur.sat. * * mur.sat 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 3 of the License, or * any later version. * * mur.sat 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 mur.sat. If not, see . * */ #include "avr/io.h" #include "util/delay.h" #include "spi.h" #define CPU_PRESCALE(n) (CLKPR = 0x80, CLKPR = (n)) int main(void) { CPU_PRESCALE(0); spi_init(); PORTE = 0x00; DDRE = 0x00; for(;;) { _delay_ms(250); PORTE ^= 1<