/* * * 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) 2012 Bernhard Tittelbach * * 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 "c1101lib.h" #include "spi.h" //#include "usb_rawhid.h" #max len: 64 bytes void writeTXFifo(char *buffer, len) { //check TXBYTES.NUM_TXBYTES // never write more bytes than avaiblabe or doom ensues } #max returned: 64 bytes int readRXFifo(char *buffer) { //check RXBYTES.NUM_RXBYTES // never read more bytes than avaiblabe or we will read garbage //note: if RX transmission fills fifo buffer at exact same time as last RX Fifo Bit is read via SPI, Fifo Pointer will not be properly updated // and last read byte will be duplicated. // thus: don't last avialable FIFO Bytes unless we can be sure that it will be the last byte of a packet and we can be sure that a following duplicated byte is actually an Fifo duplication and not an actually recieved byte ! }