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diff --git a/software/hhd70dongle/hhd70.h b/software/hhd70dongle/hhd70.h
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+/*
+ *
+ *  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 <xro@realraum.at>
+ *
+ *  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 <http://www.gnu.org/licenses/>.
+ *
+ */
+
+#ifndef MURSAT_hhd70_h_INCLUDED
+#define MURSAT_hhd70_h_INCLUDED
+
+#define SPI_DDR DDRB
+#define SPI_PORT PORTB
+#define SPI_PINB_REG  PINB
+#define CS   DDB0
+#define SCK  DDB1
+#define MOSI DDB2
+#define MISO DDB3
+#define GDO2 DDB4
+#define GDO0 DDB5
+#define RE   DDB6
+#define TE   DDB7
+
+
+void hhd70_init(void);
+void hhd70_spi_cs_enable(void);
+void hhd70_spi_cs_disable(void);
+void hhd70_c1101_wait_chip_rdy(void);
+void hhd70_spi_write_byte(char byte);
+char hhd70_spi_read_byte(void);
+char hhd70_spi_exchange_byte(char byte);
+void hhd70_pa_enable(void);
+void hhd70_pa_disable(void);
+void hhd70_lna_enable(void);
+void hhd70_lna_disable(void);
+int8_t hhd70_rx_data_available(void);
+
+#endif