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examples/ina219: A simple infinite loop that polls the INA219 sensor and displays the measurements.

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This commit is contained in:
Sebastien Lorquet 2017-10-11 10:49:48 -06:00 committed by Gregory Nutt
parent cffb1a7f9c
commit e4339355e4
6 changed files with 222 additions and 0 deletions
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6
examples/README.txt
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@ -701,6 +701,12 @@ examples/i2cchar
each time that this test executes. Not available in the kernel build
mode.
examples/ina219
^^^^^^^^^^^^^^^
This is a simple infinite loop that polls the INA219 sensor and displays
the measurements.
examples/ipforward
^^^^^^^^^^^^^^^^^^

11
examples/ina219/.gitignore vendored Normal file
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/Make.dep
/.depend
/.built
/*.asm
/*.obj
/*.rel
/*.lst
/*.sym
/*.adb
/*.lib
/*.src

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examples/ina219/Kconfig Normal file
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#
# For a description of the syntax of this configuration file,
# see the file kconfig-language.txt in the NuttX tools repository.
#
config EXAMPLES_INA219
bool "INA219 example"
default n
---help---
Enable the INA219 example
if EXAMPLES_INA219
config EXAMPLES_INA219_PROGNAME
string "Program name"
default "ina219"
depends on BUILD_KERNEL
---help---
This is the name of the program that will be use when the NSH ELF
program is installed.
config EXAMPLES_INA219_PRIORITY
int "INA219 task priority"
default 100
config EXAMPLES_INA219_STACKSIZE
int "INA219 stack size"
default 2048
endif

39
examples/ina219/Make.defs Normal file
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############################################################################
# apps/examples/ina219/Make.defs
# Adds selected applications to apps/ build
#
# Copyright (C) 2017 Sebastien Lorquet. All rights reserved.
# Author: Sebastien Lorquet <sebastien@lorquet.fr>
#
# 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.
#
############################################################################
ifeq ($(CONFIG_EXAMPLES_INA219),y)
CONFIGURED_APPS += examples/ina219
endif

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examples/ina219/Makefile Normal file
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############################################################################
# apps/examples/ina219/Makefile
#
# Copyright (C) 2017 Sebastien Lorquet. All rights reserved.
# Author: Sebastien Lorquet <sebastien@lorquet.fr>
# Copyright (C) 2008, 2010-2013, 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.
#
############################################################################
-include $(TOPDIR)/Make.defs
# Hello, World! built-in application info
CONFIG_EXAMPLES_INA219_PRIORITY ?= SCHED_PRIORITY_DEFAULT
CONFIG_EXAMPLES_INA219_STACKSIZE ?= 2048
APPNAME = ina219
PRIORITY = $(CONFIG_EXAMPLES_INA219_PRIORITY)
STACKSIZE = $(CONFIG_EXAMPLES_INA219_STACKSIZE)
# Hello, World! Example
ASRCS =
CSRCS =
MAINSRC = ina219_main.c
CONFIG_EXAMPLES_INA219_PROGNAME ?= ina219$(EXEEXT)
PROGNAME = $(CONFIG_EXAMPLES_INA219_PROGNAME)
include $(APPDIR)/Application.mk

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examples/ina219/ina219_main.c Normal file
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/****************************************************************************
* examples/ina219/ina219_main.c
*
* Copyright (C) 2017 Sebastien Lorquet. All rights reserved.
* Author: Sebastien Lorquet <sebastien@lorquet.fr>
*
* 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 <fcntl.h>
#include <unistd.h>
#include <nuttx/sensors/ina219.h>
/****************************************************************************
* Public Functions
****************************************************************************/
/****************************************************************************
* ina219_main
****************************************************************************/
#ifdef CONFIG_BUILD_KERNEL
int main(int argc, FAR char *argv[])
#else
int ina219_main(int argc, char *argv[])
#endif
{
struct ina219_s sample;
int fd;
int ret;
fd = open("/dev/ina219", O_RDWR);
while (1)
{
ret = read(fd, &sample, sizeof(sample));
if (ret != sizeof(sample))
{
break;
}
printf("U=%12u uV I=%12d uA\n", sample.voltage, sample.current);
}
close(fd);
return 0;
}