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‎CONTRIBUTING.md‎

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‎avdweb_SWscope.cpp‎

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/*
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The library <Streaming.h> has to be installed too, download here:
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http://arduiniana.org/libraries/streaming/ The library <avdweb.h> has to be
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installed too, download here: nog doen
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Copyright (C) 2016 Albert van Dalen http://www.avdweb.nl
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This program is free software: you can redistribute it and/or modify it under
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the terms of the GNU General Public License as published by the Free Software
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Foundation, either version 3 of the License, or (at your option) any later
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version. This program is distributed in the hope that it will be useful, but
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WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
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FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License at
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http://www.gnu.org/licenses .
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HISTORY:
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1.0.0 1-1-2016
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1.0.1 14-1-2016 sample0_us
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1.0.2 10-2-2017 1, 2, 3, 4 channels
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1.0.3 10-2-2017 probeA sampleB probeABC probeABCD to avoid mistakes, all
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unsigned int -> int, added stop(), sizeof(int) SerialUSB -> Serial (incl.
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<Albert.h>), short 1.0.4 10-3-2017 for ISR measurements do show() in loop()
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1.0.5 28-1-2018 renamed sample to probe, Scope to SWscope
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start ___|____________________________________|________
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probe |_|_|_|_|_|_|_|_|_|_|_|_|_|_|_|_|_|_|_|_|_|_|_|_|_|_|_
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trigger ____________|________________________________________
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___________________________
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triggered ____________| |___________
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samples 0 0 1 2 3 . . .
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________
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show ________________________| |______________
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____________________ ___________
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samplingOn ___| |_______________|
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canShow ________________________|___________________________
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*/
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#include "avdweb_SWscope.h"
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#include "Albert.h"
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#include <Streaming.h>
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void SWscope::start(byte _channels, int _preSamples,
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unsigned int _recordLenght) {
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ptr = samples = triggerPtr = preSamples = triggered = 0;
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stopPtr = 32767;
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samplingOn = 1;
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channels = _channels;
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recordLenght = maxScopeBytes / (sizeof(short) * channels);
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if (_recordLenght <= recordLenght)
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recordLenght = _recordLenght;
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if (abs(_preSamples) <= recordLenght)
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preSamples = _preSamples;
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}
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void SWscope::stop() { stopPtr = calcPtr(ptr + 1); }
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void SWscope::showIfReady() {
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if (!canShow)
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return;
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canShow = 0;
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while (!Serial)
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; // wait on Serial Monitor
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Serial << "\nusPerDiv: " << usPerDiv << "\nptr, values ";
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ptr = stopPtr;
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do {
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if (channels == 1)
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Serial << endl << ptr, ringBuffer.chA[ptr];
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if (channels == 2)
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Serial << endl << ptr, ringBuffer.chAB[ptr][0], ringBuffer.chAB[ptr][1];
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if (channels == 3)
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Serial << endl
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<< ptr,
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ringBuffer.chABC[ptr][0], ringBuffer.chABC[ptr][1],
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ringBuffer.chABC[ptr][2];
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if (channels == 4)
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Serial << endl
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<< ptr,
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ringBuffer.chABCD[ptr][0], ringBuffer.chABCD[ptr][1],
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ringBuffer.chABCD[ptr][2], ringBuffer.chABCD[ptr][3];
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if (ptr == triggerPtr)
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Serial << " trigger";
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ptr = calcPtr(ptr + 1);
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} while (ptr != stopPtr);
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stopPtr = 32767;
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}
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void SWscope::probeA(short valueA) // 1 channel
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{
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if (samplingOn) {
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ringBuffer.chA[ptr] = valueA;
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sampleControl();
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}
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}
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void SWscope::probeAB(short valueA, short valueB) // 2 channels
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{
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if (samplingOn) {
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ringBuffer.chAB[ptr][0] = valueA;
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ringBuffer.chAB[ptr][1] = valueB;
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sampleControl();
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}
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}
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void SWscope::probeABC(short valueA, short valueB, short valueC) // 3 channels
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{
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if (samplingOn) {
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ringBuffer.chABC[ptr][0] = valueA;
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ringBuffer.chABC[ptr][1] = valueB;
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ringBuffer.chABC[ptr][2] = valueC;
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sampleControl();
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}
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}
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void SWscope::probeABCD(short valueA, short valueB, short valueC,
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short valueD) // 4 channels
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{
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if (samplingOn) {
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ringBuffer.chABCD[ptr][0] = valueA;
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ringBuffer.chABCD[ptr][1] = valueB;
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ringBuffer.chABCD[ptr][2] = valueC;
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ringBuffer.chABCD[ptr][3] = valueD;
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sampleControl();
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}
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}
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void SWscope::sampleControl() {
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if (samples == 0)
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sample0_us = micros();
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samples++;
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ptr = calcPtr(ptr + 1);
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if (ptr == stopPtr) {
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samplingOn = 0;
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canShow = 1;
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unsigned long stop_us = micros(); // to avoid delay, start with this
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usPerDiv = samples > 1 ? (stop_us - sample0_us) / (samples - 1)
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: 0; // is not exact?
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}
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}
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unsigned int SWscope::calcPtr(int _ptr) {
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if (_ptr >= recordLenght)
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return (_ptr - recordLenght); // happens most frequent
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if (_ptr < 0)
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return (_ptr + recordLenght);
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return _ptr;
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}
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void SWscope::trigger() {
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if (!triggered) {
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triggerPtr = ptr;
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stopPtr = calcPtr(triggerPtr - preSamples);
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triggered = 1;
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}
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}
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void SWscope::testBuffer() {
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start(1);
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for (int i = 0; i < 25000; i++) {
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if (i == 0)
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trigger();
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probeA(i);
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}
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}
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/*
2+
The library <Streaming.h> has to be installed too, download here:
3+
http://arduiniana.org/libraries/streaming/ The library <avdweb.h> has to be
4+
installed too, download here: nog doen
5+
6+
Copyright (C) 2016 Albert van Dalen http://www.avdweb.nl
7+
This program is free software: you can redistribute it and/or modify it under
8+
the terms of the GNU General Public License as published by the Free Software
9+
Foundation, either version 3 of the License, or (at your option) any later
10+
version. This program is distributed in the hope that it will be useful, but
11+
WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
12+
FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License at
13+
http://www.gnu.org/licenses .
14+
15+
HISTORY:
16+
1.0.0 1-1-2016
17+
1.0.1 14-1-2016 sample0_us
18+
1.0.2 10-2-2017 1, 2, 3, 4 channels
19+
1.0.3 10-2-2017 probeA sampleB probeABC probeABCD to avoid mistakes, all
20+
unsigned int -> int, added stop(), sizeof(int) SerialUSB -> Serial (incl.
21+
<Albert.h>), short 1.0.4 10-3-2017 for ISR measurements do show() in loop()
22+
1.0.5 28-1-2018 renamed sample to probe, Scope to SWscope
23+
24+
start ___|____________________________________|________
25+
26+
probe |_|_|_|_|_|_|_|_|_|_|_|_|_|_|_|_|_|_|_|_|_|_|_|_|_|_|_
27+
28+
trigger ____________|________________________________________
29+
___________________________
30+
triggered ____________| |___________
31+
32+
samples 0 0 1 2 3 . . .
33+
________
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show ________________________| |______________
35+
____________________ ___________
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samplingOn ___| |_______________|
37+
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canShow ________________________|___________________________
39+
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*/
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#include "avdweb_SWscope.h"
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#include "Albert.h"
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#include <Streaming.h>
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void SWscope::start(byte _channels, int _preSamples,
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unsigned int _recordLenght) {
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ptr = samples = triggerPtr = preSamples = triggered = 0;
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stopPtr = 32767;
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samplingOn = 1;
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channels = _channels;
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recordLenght = maxScopeBytes / (sizeof(short) * channels);
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if (_recordLenght <= recordLenght)
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recordLenght = _recordLenght;
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if (abs(_preSamples) <= recordLenght)
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preSamples = _preSamples;
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}
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void SWscope::stop() { stopPtr = calcPtr(ptr + 1); }
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void SWscope::showIfReady() {
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if (!canShow)
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return;
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canShow = 0;
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while (!Serial)
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; // wait on Serial Monitor
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Serial << "\nusPerDiv: " << usPerDiv << "\nptr, values ";
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ptr = stopPtr;
69+
do {
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if (channels == 1)
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Serial << endl << ptr, ringBuffer.chA[ptr];
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if (channels == 2)
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Serial << endl << ptr, ringBuffer.chAB[ptr][0], ringBuffer.chAB[ptr][1];
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if (channels == 3)
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Serial << endl
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<< ptr,
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ringBuffer.chABC[ptr][0], ringBuffer.chABC[ptr][1],
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ringBuffer.chABC[ptr][2];
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if (channels == 4)
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Serial << endl
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<< ptr,
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ringBuffer.chABCD[ptr][0], ringBuffer.chABCD[ptr][1],
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ringBuffer.chABCD[ptr][2], ringBuffer.chABCD[ptr][3];
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if (ptr == triggerPtr)
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Serial << " trigger";
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ptr = calcPtr(ptr + 1);
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} while (ptr != stopPtr);
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stopPtr = 32767;
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}
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void SWscope::probeA(short valueA) // 1 channel
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{
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if (samplingOn) {
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ringBuffer.chA[ptr] = valueA;
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sampleControl();
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}
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}
98+
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void SWscope::probeAB(short valueA, short valueB) // 2 channels
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{
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if (samplingOn) {
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ringBuffer.chAB[ptr][0] = valueA;
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ringBuffer.chAB[ptr][1] = valueB;
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sampleControl();
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}
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}
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void SWscope::probeABC(short valueA, short valueB, short valueC) // 3 channels
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{
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if (samplingOn) {
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ringBuffer.chABC[ptr][0] = valueA;
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ringBuffer.chABC[ptr][1] = valueB;
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ringBuffer.chABC[ptr][2] = valueC;
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sampleControl();
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}
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}
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void SWscope::probeABCD(short valueA, short valueB, short valueC,
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short valueD) // 4 channels
120+
{
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if (samplingOn) {
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ringBuffer.chABCD[ptr][0] = valueA;
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ringBuffer.chABCD[ptr][1] = valueB;
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ringBuffer.chABCD[ptr][2] = valueC;
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ringBuffer.chABCD[ptr][3] = valueD;
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sampleControl();
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}
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}
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void SWscope::sampleControl() {
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if (samples == 0)
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sample0_us = micros();
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samples++;
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ptr = calcPtr(ptr + 1);
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if (ptr == stopPtr) {
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samplingOn = 0;
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canShow = 1;
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unsigned long stop_us = micros(); // to avoid delay, start with this
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usPerDiv = samples > 1 ? (stop_us - sample0_us) / (samples - 1)
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: 0; // is not exact?
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}
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}
143+
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unsigned int SWscope::calcPtr(int _ptr) {
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if (_ptr >= recordLenght)
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return (_ptr - recordLenght); // happens most frequent
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if (_ptr < 0)
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return (_ptr + recordLenght);
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return _ptr;
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}
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void SWscope::trigger() {
153+
if (!triggered) {
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triggerPtr = ptr;
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stopPtr = calcPtr(triggerPtr - preSamples);
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triggered = 1;
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}
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}
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void SWscope::testBuffer() {
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start(1);
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for (int i = 0; i < 25000; i++) {
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if (i == 0)
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trigger();
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probeA(i);
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}
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}

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