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ds18b20: rewrite C++ to wrap C, add FTI, update examples

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Previously, the C++ and C versions of this driver were separate.  Now
the C++ implementation wraps the C implementation.

In addition, the C++ init() function has been deprecated.  It
currently does nothing, and examples have been modified to remove it's
calls.  This function will be removed in a separate release.

The examples have been further modified to update all detected devices
and print their respective temperatures, instead of only reporting the
on the first device detected.

Signed-off-by: Jon Trulson <jtrulson@ics.com>
This commit is contained in:
Jon Trulson
2017-01-18 13:09:51 -07:00
parent 6769d976a0
commit d3b864362d
15 changed files with 685 additions and 757 deletions
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29
examples/c++/ds18b20.cxx
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@ -1,6 +1,6 @@
/*
* Author: Jon Trulson <jtrulson@ics.com>
* Copyright (c) 2016 Intel Corporation.
* Copyright (c) 2016-2017 Intel Corporation.
*
* Permission is hereby granted, free of charge, to any person obtaining
* a copy of this software and associated documentation files (the
@ -49,9 +49,6 @@ int main(int argc, char **argv)
// Instantiate an DS18B20 instance using the default values (uart 0)
upm::DS18B20 sensor;
// locate and setup our devices
sensor.init();
cout << "Found " << sensor.devicesFound() << " device(s)" << endl;
cout << endl;
@ -59,18 +56,26 @@ int main(int argc, char **argv)
if (!sensor.devicesFound())
return 1;
// update and print available values every second
// update and print available values every 2 seconds
while (shouldRun)
{
// update our values for the first sensor
sensor.update(0);
// update our values for all of the detected sensors
sensor.update(-1);
// we show both C and F for temperature for the first sensor
cout << "Temperature: " << sensor.getTemperature(0)
<< " C / " << sensor.getTemperature(0, true) << " F"
<< endl;
// we show both C and F for temperature for the sensors
int i;
for (i=0; i<sensor.devicesFound(); i++)
{
cout << "Device "
<< i
<< ": Temperature: "
<< sensor.getTemperature(i)
<< " C / " << sensor.getTemperature(i, true) << " F"
<< endl;
}
cout << endl;
sleep(1);
sleep(2);
}
cout << "Exiting..." << endl;