Paparazzi UAS v7.0_unstable
Paparazzi is a free software Unmanned Aircraft System.
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ppm_arch.h
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1/*
2 * Copyright (C) 2013 AggieAir, A Remote Sensing Unmanned Aerial System for Scientific Applications
3 * Utah State University, http://aggieair.usu.edu/
4 *
5 * Michal Podhradsky (michal.podhradsky@aggiemail.usu.edu)
6 * Calvin Coopmans (c.r.coopmans@ieee.org)
7 *
8 *
9 * This file is part of paparazzi.
10 *
11 * paparazzi is free software; you can redistribute it and/or modify
12 * it under the terms of the GNU General Public License as published by
13 * the Free Software Foundation; either version 2, or (at your option)
14 * any later version.
15 *
16 * paparazzi is distributed in the hope that it will be useful,
17 * but WITHOUT ANY WARRANTY; without even the implied warranty of
18 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
19 * GNU General Public License for more details.
20 *
21 * You should have received a copy of the GNU General Public License
22 * along with paparazzi; see the file COPYING. If not, write to
23 * the Free Software Foundation, 59 Temple Place - Suite 330,
24 * Boston, MA 02111-1307, USA.
25 */
32#ifndef PPM_ARCH_H
33#define PPM_ARCH_H
34
35#include BOARD_CONFIG
36
37/*
38 * The ppm counter desired resolution is 1/6 us.
39 */
40#ifndef RC_PPM_TICKS_PER_USEC
41#error "RC_PPM_TICKS_PER_USEC not set in board.h file"
42#endif
43
44#define RC_PPM_TICKS_OF_USEC(_v) ((_v)*RC_PPM_TICKS_PER_USEC)
45#define RC_PPM_SIGNED_TICKS_OF_USEC(_v) (int32_t)((_v)*RC_PPM_TICKS_PER_USEC)
46#define USEC_OF_RC_PPM_TICKS(_v) ((_v)/RC_PPM_TICKS_PER_USEC)
47
48#define PPM_NB_CHANNEL RADIO_CONTROL_NB_CHANNEL
49
50#endif /* PPM_ARCH_H */