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//************************************************************************
//* Arduino Test Suite
//* ATS_ToneTest
//*
//* Copyright (c) 2010 Mark Sproul All right reserved.
//*
//* This library is free software; you can redistribute it and/or
//* modify it under the terms of the GNU Lesser General Public
//* License as published by the Free Software Foundation; either
//* version 2.1 of the License, or (at your option) any later version.
//*
//* This library is distributed in the hope that it will be useful,
//* but WITHOUT ANY WARRANTY; without even the implied warranty of
//* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
//* Lesser General Public License for more details.
//*
//* You should have received a copy of the GNU Lesser General Public
//* License along with this library; if not, write to the Free Software
//* Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
//************************************************************************
//* Aug 31, 2010 <MLS> Started on TestArduino
//* Oct 23, 2010 <MLS> Started on ToneTest
//************************************************************************
#include "WProgram.h"
#include "HardwareSerial.h"
#if defined(__AVR_ATmega168__) || defined(__AVR_ATmega328P__)
#define kBoard_PinCount 20
#define kBoard_AnalogCount 6
#elif defined(__AVR_ATmega1280__) || defined(__AVR_ATmega2560__)
#define kBoard_PinCount 70
#define kBoard_AnalogCount 16
#endif
#include <ArduinoTestSuite.h>
//************************************************************************
void TestTonePin(uint8_t toneOutputPinNumber)
{
uint8_t helperpin;
unsigned long startMilliSecs;
unsigned long highCount, lowCount;
int previousState;
int currentState;
char testNameString[80];
long outputFreq;
long measuredFreq;
boolean passed;
long percentError;
long deltaFreq;
if ((toneOutputPinNumber % 2) == 0)
{
//* if its EVEN, add 1
helperpin = toneOutputPinNumber + 1;
}
else
{
//* if its ODD
helperpin = toneOutputPinNumber - 1;
}
//* dont set the mode of the OUTPUT pin, the tone command does that
pinMode(helperpin, INPUT);
previousState = digitalRead(helperpin);
startMilliSecs = millis();
highCount = 0;
lowCount = 0;
measuredFreq = 0;
//* we are going to watch for one second
outputFreq = random(200, 2000);
tone(toneOutputPinNumber, outputFreq);
while ((millis() - startMilliSecs) < 1000)
{
currentState = digitalRead(helperpin);
if (currentState == HIGH)
{
highCount++;
}
else
{
lowCount++;
}
//* check to see if it changed state
if ((currentState == HIGH) && (previousState == LOW))
{
measuredFreq++;
}
previousState = currentState;
}
noTone(toneOutputPinNumber);
deltaFreq = abs(measuredFreq - outputFreq);
percentError = 100 - abs(((outputFreq - deltaFreq) * 100) / outputFreq);
sprintf(testNameString, "ToneTest.%02d (out freq= %4ld measured freq= %4ld err= %ld%%)", toneOutputPinNumber, outputFreq, measuredFreq, percentError);
if (percentError < 5)
{
passed = true;
}
else
{
passed = false;
}
ATS_PrintTestStatus(testNameString, passed);
}
//************************************************************************
//* this test to make sure the duration option works
void TestToneDuration(uint8_t toneOutputPinNumber)
{
uint8_t helperpin;
unsigned long startMilliSecs;
unsigned long highCount, lowCount;
int previousState;
int currentState;
char testNameString[80];
long outputFreq;
long measuredFreq;
boolean passed;
long percentError;
long deltaFreq;
long durationTime;
if ((toneOutputPinNumber % 2) == 0)
{
//* if its EVEN, add 1
helperpin = toneOutputPinNumber + 1;
}
else
{
//* if its ODD
helperpin = toneOutputPinNumber - 1;
}
//* dont set the mode of the OUTPUT pin, the tone command does that
pinMode(helperpin, INPUT);
previousState = digitalRead(helperpin);
startMilliSecs = millis();
highCount = 0;
lowCount = 0;
measuredFreq = 0;
durationTime = 0;
//* we are going to watch for one second
outputFreq = random(500, 2000);
tone(toneOutputPinNumber, outputFreq, 1000);
while ((millis() - startMilliSecs) < 2000)
{
currentState = digitalRead(helperpin);
if (currentState == HIGH)
{
highCount++;
}
else
{
lowCount++;
}
//* count the freq
if ((currentState == HIGH) && (previousState == LOW))
{
measuredFreq++;
}
//* check to see if it changed state
if (currentState != previousState)
{
durationTime = millis() - startMilliSecs;
}
previousState = currentState;
}
deltaFreq = abs(measuredFreq - outputFreq);
percentError = 100 - abs(((outputFreq - deltaFreq) * 100) / outputFreq);
sprintf(testNameString, "ToneTesDurationt.%02d (durationTime =%4ld/1000 freq err= %ld%%)", toneOutputPinNumber, durationTime, percentError);
if ((durationTime > 990) && (durationTime < 1010) && (percentError < 5))
{
passed = true;
}
else
{
passed = false;
}
noTone(toneOutputPinNumber);
ATS_PrintTestStatus(testNameString, passed);
}
//************************************************************************
void setup()
{
short ii;
uint8_t timerNumber;
int startMemoryUsage;
startMemoryUsage = ATS_GetFreeMemory();
ATS_begin("Arduino", "ToneTest");
//* we start at 2 because 0/1 are RXD/TXD
for (ii=2; ii<kBoard_PinCount; ii++)
{
TestTonePin(ii);
}
//* we dont need to test every pin
for (ii=2; ii<kBoard_PinCount; ii += 5)
{
TestToneDuration(ii);
}
ATS_ReportMemoryUsage(startMemoryUsage);
ATS_end();
}
//************************************************************************
void loop()
{
}
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