Paparazzi UAS  v5.15_devel-113-g1b57ff1
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,
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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 */