220653f21c
Author: anchao <anchao@pinecone.net>
apps/, most main() function: Correct CONFIG_BUILD_LOADABLE usage
Loadable apps/: Correct loadable symbol table generate
apps/system/ubloxmodem: Fix build break
apps/examples/ostest: start restart/waitpid/user test from main loop
apps/nshlib: Expand reboot and poweroff commands to include a second, optional mode argument
Author: Gregory Nutt <gnutt@nuttx.org>
An attempt to fix build issues. Does not work.
apps/examples/ostest: Fix some inappropriate renaming of static functions introduced with recent patches.
apps/builtin/exec_builtin.c: Fix a error introduced by recent comments. Found in build testing.
Author: anchao <anchao@pinecone.net>
apps/builtin/exec_builtin.c: Try posix_spawn if builtin apps do not have have an entry point.
apps/Application.mk: introduce MODULE config to simplify tristate(m)
apps/nsh: Change the nuttx shell module type to tristate
apps: Add loadable application support
script/mksymtab: Generate symbol table name by default
apps/builtin: Allow loadable applications can register with apps/builtin.
95 lines
3.1 KiB
C
95 lines
3.1 KiB
C
/****************************************************************************
|
|
* examples/obd2/obd2_main.c
|
|
*
|
|
* Copyright (C) 2017 Gregory Nutt. All rights reserved.
|
|
* Author: Gregory Nutt <gnutt@nuttx.org>
|
|
*
|
|
* 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.
|
|
*
|
|
****************************************************************************/
|
|
|
|
/****************************************************************************
|
|
* Included Files
|
|
****************************************************************************/
|
|
|
|
#include <nuttx/config.h>
|
|
#include <stdio.h>
|
|
|
|
#include "canutils/obd.h"
|
|
#include "canutils/obd_pid.h"
|
|
#include "canutils/obd_frame.h"
|
|
|
|
/****************************************************************************
|
|
* Public Functions
|
|
****************************************************************************/
|
|
|
|
/****************************************************************************
|
|
* obd2_main
|
|
****************************************************************************/
|
|
|
|
#ifdef BUILD_MODULE
|
|
int main(int argc, FAR char *argv[])
|
|
#else
|
|
int obd2_main(int argc, char *argv[])
|
|
#endif
|
|
{
|
|
struct obd_dev_s *dev;
|
|
int ret;
|
|
|
|
dev = obd_init("/dev/can0", 0, 0);
|
|
if (!dev)
|
|
{
|
|
printf("Failed to initialize the OBD-II device!\n");
|
|
return -1;
|
|
}
|
|
|
|
/* Request the RPM */
|
|
|
|
ret = obd_send_request(dev, OBD_SHOW_DATA, OBD_PID_RPM);
|
|
if (ret < 0)
|
|
{
|
|
printf("Failed to request RPM!\n");
|
|
return -1;
|
|
}
|
|
|
|
/* Wait for response */
|
|
|
|
ret = obd_wait_response(dev, OBD_SHOW_DATA, OBD_PID_RPM, 100);
|
|
if (ret < 0)
|
|
{
|
|
printf("Failed to receive the response!\n");
|
|
return -1;
|
|
}
|
|
|
|
/* Decode the received PID */
|
|
|
|
printf("RPM = %s\n", obd_decode_pid(dev, OBD_PID_RPM));
|
|
|
|
return 0;
|
|
}
|