test_ppm.cpp
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/****************************************************************************
*
* Copyright (c) 2012-2019 PX4 Development Team. All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
*
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in
* the documentation and/or other materials provided with the
* distribution.
* 3. Neither the name NuttX nor the names of its contributors may be
* used to endorse or promote products derived from this software
* without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
* "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
* LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
* FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
* COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING,
* BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS
* OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED
* AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN
* ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
* POSSIBILITY OF SUCH DAMAGE.
*
****************************************************************************/
/**
* @file test_ppm.cpp
* Test for ppm channel values.
*/
#include <stdio.h>
#include "tests_main.h"
extern uint16_t ppm_buffer[];
extern unsigned ppm_decoded_channels;
// extern uint16_t ppm_edge_history[];
// extern uint16_t ppm_pulse_history[];
int test_ppm(int argc, char *argv[])
{
#ifdef HRT_PPM_CHANNEL
unsigned i;
printf("channels: %u\n", ppm_decoded_channels);
for (i = 0; i < ppm_decoded_channels; i++) {
printf(" %u\n", ppm_buffer[i]);
}
// printf("edges\n");
// for (i = 0; i < 32; i++) {
// printf(" %u\n", ppm_edge_history[i]);
// }
// printf("pulses\n");
// for (i = 0; i < 32; i++) {
// printf(" %u\n", ppm_pulse_history[i]);
// }
fflush(stdout);
#else
printf("PPM not configured\n");
#endif
return 0;
}