sergiotarxz/nuttx-apps
1
0
Fork 0
Code Issues Pull Requests Releases Wiki Activity

Merged in ordsen/apps/feature-powermonitor-example (pull request #100)

Browse Source 
Implement powermonitor example for ltc4151 current and voltage monitor

Approved-by: Gregory Nutt <gnutt@nuttx.org>
This commit is contained in:
Giorgio Groß 2017-07-28 15:07:28 +00:00 committed by Gregory Nutt
commit b28cea29ed
5 changed files with 200 additions and 0 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

11
examples/powermonitor/.gitignore vendored Normal file
View File

@ -0,0 +1,11 @@
/Make.dep
/.depend
/.built
/*.asm
/*.obj
/*.rel
/*.lst
/*.sym
/*.adb
/*.lib
/*.src

11
examples/powermonitor/Kconfig Normal file
View File

@ -0,0 +1,11 @@
#
# For a description of the syntax of this configuration file,
# see the file kconfig-language.txt in the NuttX tools repository.
#
config EXAMPLES_POWERMONITOR
bool "LTC4151 powermonitor example"
default n
if EXAMPLES_POWERMONITOR
endif # EXAMPLES_POWERMONITOR

39
examples/powermonitor/Make.defs Normal file
View File

@ -0,0 +1,39 @@
############################################################################
# apps/examples/powermonitor/Make.defs
# Adds selected applications to apps/ build
#
# Copyright (C) 2017 Giorgio Groß. All rights reserved.
# Author: Giorgio Groß <giorgio.gross@robodev.eu>
#
# 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_POWERMONITOR),y)
CONFIGURED_APPS += examples/powermonitor
endif

51
examples/powermonitor/Makefile Normal file
View File

@ -0,0 +1,51 @@
############################################################################
# apps/examples/powermonitor/Makefile
#
# Copyright (C) 2017 Giorgio Groß. All rights reserved.
# Author: Giorgio Groß <giorgio.gross@robodev.eu>
#
# 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 $(TOPDIR)/Make.defs
APPNAME = powermonitor
PRIORITY = SCHED_PRIORITY_DEFAULT
STACKSIZE = 768
ASRCS =
CSRCS =
MAINSRC = powermonitor_main.c
CFLAGS += -I../../../nuttx/arch/arm/src -I../../../nuttx/arch/arm/src/common
CONFIG_EXAMPLES_POWERMONITOR_PROGNAME ?= temperature$(EXEEXT)
PROGNAME = $(CONFIG_EXAMPLES_POWERMONITOR_PROGNAME)
include $(APPDIR)/Application.mk

88
examples/powermonitor/powermonitor_main.c Normal file
View File

@ -0,0 +1,88 @@
/****************************************************************************
* examples/powermonitor/powermonitor_main.c
*
* Copyright (C) 2017 Giorgi Groß. All rights reserved.
* Author: Giorgio Groß <giorgio.gross@robodev.eu>
*
* 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 <nuttx/config.h>
#include <stdint.h>
#include <stdbool.h>
#include <debug.h>
#include <stdio.h>
#include <fixedmath.h>
#include <sys/types.h>
#include <sys/stat.h>
#include <fcntl.h>
#include <errno.h>
#include <stdlib.h>
#include <nuttx/sensors/ltc4151.h>
//#include <nuttx/board.h>
#define DECIMAL_PLACES3(x) abs(((int)(((x)-((int)x))*1000)))
#ifdef CONFIG_BUILD_KERNEL
int main(int argc, char *argv[])
#else
int powermonitor_main(int argc, char *argv[])
#endif
{
char* pwrmntr_dev = "/dev/pwrmntr0";
int samples = 1;
if (argc > 1) {
samples = atoi(argv[1]);
}
int pwrmntr_fd = open(pwrmntr_dev, O_RDONLY);
if (!pwrmntr_fd) {
printf("Failed to open %s: %d\n", pwrmntr_dev, errno);
return 1;
}
ltc4151_t ltc;
int sample;
for (sample = 0; sample < samples; ++sample) {
if (read(pwrmntr_fd, &ltc, sizeof(ltc)) < 0) {
printf("Failed to read from %s: %d\n", pwrmntr_dev, errno);
return 1;
}
float float_current = b16tof(ltc.current);
float float_voltage = b16tof(ltc.voltage);
printf("Current: %d.%03dmA - Voltage: %d.%03dV\n", (int)float_current, DECIMAL_PLACES3(float_current), (int)float_voltage, DECIMAL_PLACES3(float_voltage));
}
close(pwrmntr_fd);
return 0;
}