mirror of
https://gitee.com/mirrors_PX4/PX4-Autopilot.git
synced 2026-10-03 16:58:54 +08:00
David Sidrane
4349f49610
This PR is preliminary ground work for FMUv5. PX4 does not use the NuttX adc driver. But used the same format for the data returned by the nuttx ADC driver. There was a fixme:in src/platforms/px4_adc.h "this needs to be a px4_adc_msg_s type" With this PR the need for src/platforms/px4_adc.h goes away as the driver drv_adc.h now describes the px4_adc_msg_t.
92 lines
2.7 KiB
C
92 lines
2.7 KiB
C
/****************************************************************************
|
|
*
|
|
* Copyright (C) 2012 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 PX4 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_adc.c
|
|
* Test for the analog to digital converter.
|
|
*/
|
|
|
|
#include <px4_config.h>
|
|
#include <px4_posix.h>
|
|
#include <px4_log.h>
|
|
|
|
#include <sys/types.h>
|
|
|
|
#include <stdio.h>
|
|
#include <stdlib.h>
|
|
#include <unistd.h>
|
|
#include <fcntl.h>
|
|
#include <errno.h>
|
|
|
|
#include "tests_main.h"
|
|
|
|
#include <drivers/drv_adc.h>
|
|
|
|
int test_adc(int argc, char *argv[])
|
|
{
|
|
int fd = px4_open(ADC0_DEVICE_PATH, O_RDONLY);
|
|
|
|
if (fd < 0) {
|
|
PX4_ERR("ERROR: can't open ADC device");
|
|
return 1;
|
|
}
|
|
|
|
for (unsigned i = 0; i < 5; i++) {
|
|
/* make space for a maximum number of channels */
|
|
px4_adc_msg_t data[PX4_MAX_ADC_CHANNELS];
|
|
/* read all channels available */
|
|
ssize_t count = px4_read(fd, data, sizeof(data));
|
|
|
|
if (count < 0) {
|
|
goto errout_with_dev;
|
|
}
|
|
|
|
unsigned channels = count / sizeof(data[0]);
|
|
|
|
for (unsigned j = 0; j < channels; j++) {
|
|
printf("%d: %u ", data[j].am_channel, data[j].am_data);
|
|
}
|
|
|
|
printf("\n");
|
|
usleep(150000);
|
|
}
|
|
|
|
printf("\t ADC test successful.\n");
|
|
|
|
errout_with_dev:
|
|
|
|
if (fd != 0) { px4_close(fd); }
|
|
|
|
return OK;
|
|
}
|