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Commit b31145f6 authored by Simon Spannagel's avatar Simon Spannagel
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Alg/TPX3EvLoader: move to using nanoseconds everywhere

parent 7a8163f0
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src/algorithms/Timepix3EventLoader/README.md
View file @ b31145f6
......@@ -11,10 +11,8 @@ The hit timestamps are derived from the 40 MHz TOA counter and the fast on-pixel
#### Parameters
* `inputDirectory`: Path to the directory above the data directory for each device. The device name is added to the path during the algorithm.
* `applyTimingCut`: Boolean to set if a timing cut should be applied. Default value is `false`. Not currently used.
* `timingCut`: Value of the timing cut. This will be applied if `applyTimingCut = true`. Default value is `0.0`. Not currently used.
* `minNumberOfPlanes`: Minimum number of planes with loaded data required for each event to be stored. Default value is `1`.
* `eventLength`: Length in time for each event. Default value is `0.0`. This is only used if `eventLength` is present in the configuration file, otherwise the data is split into events using the `number_of_pixelhits` parameter.
* `eventLength`: Length in time for each event. Default value is `0.0`. Event legnth is only used if this parameter is present in the configuration file, otherwise the data is split into events using the `number_of_pixelhits` parameter.
* `number_of_pixelhits`: Maximum number of pixel hits on each detector per event. Default value is `2000`. This is only used if `eventLength` is not present in the configuration file, otherwise the data is split into events using the `eventLength` parameter.
* `DUT`: Name of the DUT plane.
......@@ -25,8 +23,6 @@ No plots are produced.
```toml
[Timepix3EventLoader]
inputDirectory = "path/to/directory"
applyTimingCut = false
timingCut = 0.0
minNumberOfPlanes = 5
eventLength = 0.0000002
number_of_pixelhits = 0
......
src/algorithms/Timepix3EventLoader/Timepix3EventLoader.cpp
View file @ b31145f6
......@@ -18,14 +18,11 @@ Timepix3EventLoader::Timepix3EventLoader(Configuration config, std::vector<Detec
// Take input directory from global parameters
m_inputDirectory = m_config.get<std::string>("inputDirectory");
applyTimingCut = m_config.get<bool>("applyTimingCut", false);
m_timingCut = m_config.get<double>("timingCut", 0.0);
m_triggerLatency = m_config.get<double>("triggerLatency", 0.0);
m_minNumberOfPlanes = m_config.get<int>("minNumerOfPlanes", 1);
// Check whether event length or pixel count should be used to separate events:
m_eventLength = m_config.get<double>("eventLength", 0.0);
m_eventLength = m_config.get<double>("eventLength", Units::convert(0.0, "ns"));
m_numberPixelHits = m_config.get<int>("number_of_pixelhits", 2000);
}
......@@ -231,8 +228,8 @@ StatusCode Timepix3EventLoader::run(Clipboard* clipboard) {
// Otherwise tell event loop to keep running
IFLOG(INFO) {
if(temporalSplit) {
LOG_PROGRESS(INFO, "tpx3_loader")
<< "Current time: " << std::setprecision(4) << std::fixed << clipboard->get_persistent("currentTime");
LOG_PROGRESS(INFO, "tpx3_loader") << "Current time: " << std::setprecision(4) << std::fixed
<< Units::convert(clipboard->get_persistent("currentTime"), "s");
} else {
LOG_PROGRESS(INFO, "tpx3_loader") << "Current event: " << m_currentEvent;
}
......@@ -370,8 +367,8 @@ bool Timepix3EventLoader::loadData(Clipboard* clipboard, Detector* detector, Pix
if(header2 == 0x6) {
LOG(TRACE) << "Found power pulsing - start";
const uint64_t time((pixdata & 0x0000000FFFFFFFFF) << 12);
// Read time stamp and convert to nanoseconds
const double timestamp = ((pixdata & 0x0000000FFFFFFFFF) << 12) / (4096 * 0.04);
const uint64_t controlbits = ((pixdata & 0x00F0000000000000) >> 52) & 0xF;
const uint64_t powerOn = ((controlbits & 0x2) >> 1);
......@@ -380,56 +377,55 @@ bool Timepix3EventLoader::loadData(Clipboard* clipboard, Detector* detector, Pix
// Stop looking at data if the signal is after the current event window
// (and rewind the file
// reader so that we start with this signal next event)
if(temporalSplit &&
((double)time / (4096. * 40000000.)) > (clipboard->get_persistent("currentTime") + m_eventLength)) {
(*m_file_iterator[detectorID])->seekg(-1 * sizeof(pixdata), std::ios_base::cur);
LOG(TRACE) << "Signal has a time beyond the current event: " << (double)time / (4096. * 40000000.);
break;
if(temporalSplit) {
if(timestamp > (clipboard->get_persistent("currentTime") + m_eventLength)) {
(*m_file_iterator[detectorID])->seekg(-1 * sizeof(pixdata), std::ios_base::cur);
LOG(TRACE) << "Signal has a time beyond the current event: " << Units::display(timestamp, "ns");
break;
}
}
SpidrSignal* powerSignal = (powerOn ? new SpidrSignal("powerOn", time) : new SpidrSignal("powerOff", time));
SpidrSignal* powerSignal =
(powerOn ? new SpidrSignal("powerOn", timestamp) : new SpidrSignal("powerOff", timestamp));
spidrData->push_back(powerSignal);
LOG(DEBUG) << "Power is " << (powerOn ? "on" : "off") << " power! Time: " << std::setprecision(10)
<< (double)time / (4096. * 40000000.);
LOG(DEBUG) << "Power is " << (powerOn ? "on" : "off") << " power! Time: " << Units::display(timestamp, "ns");
LOG(TRACE) << "Shutter closed: " << hex << shutterClosed << dec;
SpidrSignal* shutterSignal =
(shutterClosed ? new SpidrSignal("shutterClosed", time) : new SpidrSignal("shutterOpen", time));
SpidrSignal* shutterSignal = (shutterClosed ? new SpidrSignal("shutterClosed", timestamp)
: new SpidrSignal("shutterOpen", timestamp));
if(!shutterClosed) {
spidrData->push_back(shutterSignal);
m_shutterOpen = true;
LOG(TRACE) << "Have opened shutter with signal " << shutterSignal->type() << " at time "
<< (double)time / (4096. * 40000000.);
<< Units::display(timestamp, "ns");
}
if(shutterClosed && m_shutterOpen) {
spidrData->push_back(shutterSignal);
m_shutterOpen = false;
LOG(TRACE) << "Have closed shutter with signal " << shutterSignal->type() << " at time "
<< (double)time / (4096. * 40000000.);
<< Units::display(timestamp, "ns");
}
LOG(DEBUG) << "Shutter is " << (shutterClosed ? "closed" : "open") << ". Time: " << std::setprecision(10)
<< (double)time / (4096. * 40000000.);
LOG(DEBUG) << "Shutter is " << (shutterClosed ? "closed" : "open")
<< ". Time: " << Units::display(timestamp, "ns");
}
/*
// 0x6 is power on
if(header2 == 0x6){
const uint64_t time( (pixdata & 0x0000000FFFFFFFFF) << 12 );
SpidrSignal* signal = new SpidrSignal("powerOn",time);
const double timestamp = ((pixdata & 0x0000000FFFFFFFFF) << 12 ) / (4096 * 0.04);
SpidrSignal* signal = new SpidrSignal("powerOn",timestamp);
spidrData->push_back(signal);
LOG(DEBUG) <<"Turned on power! Time: "<<(double)time/(4096. *
40000000.);
LOG(DEBUG) <<"Turned on power! Time: " << Units::display(timestamp, "ns");
}
// 0x7 is power off
if(header2 == 0x7){
const uint64_t time( (pixdata & 0x0000000FFFFFFFFF) << 12 );
SpidrSignal* signal = new SpidrSignal("powerOff",time);
const double timestamp = ((pixdata & 0x0000000FFFFFFFFF) << 12 ) / (4096 * 0.04);
SpidrSignal* signal = new SpidrSignal("powerOff",timestamp);
spidrData->push_back(signal);
LOG(DEBUG) <<"Turned off power! Time: "<<(double)time/(4096. *
40000000.);
LOG(DEBUG) <<"Turned off power! Time: " << Units::display(timestamp, "ns");
}
*/
}
......@@ -455,7 +451,7 @@ bool Timepix3EventLoader::loadData(Clipboard* clipboard, Detector* detector, Pix
double triggerTime = (timestamp * 25e-9 + stamp * 25e-9 / 12.) / 8; // 320 MHz clock
// triggerTime -= m_triggerLatency * 1e-9;
SpidrSignal* triggerSignal = new SpidrSignal("trigger", triggerTime * (4096. * 40000000.));
SpidrSignal* triggerSignal = new SpidrSignal("trigger", triggerTime);
spidrData->push_back(triggerSignal);
}
}
......@@ -492,18 +488,11 @@ bool Timepix3EventLoader::loadData(Clipboard* clipboard, Detector* detector, Pix
// Adjusting phases for double column shift
time += ((col / 2 - 1) % 16) * 256;
// LOG(DEBUG) <<"Pixel time "<<(double)time/(4096. * 40000000.);
// LOG(DEBUG) <<"Sync time "<<(double)m_syncTime[detectorID]/(4096. *
// 40000000.);
// Add the timing offset (in nano seconds) from the detectors file (if any)
time += (long long int)(detector->timingOffset() * 4096. * 0.04);
// Add the timing offset from the coniditions file (if any)
time += (long long int)(detector->timingOffset() * 4096. * 40000000.);
// The time from the pixels has a maximum value of ~26 seconds. We compare
// the pixel time
// to the "heartbeat" signal (which has an overflow of ~4 years) and check
// if the pixel
// time has wrapped back around to 0
// The time from the pixels has a maximum value of ~26 seconds. We compare the pixel time to the "heartbeat"
// signal (which has an overflow of ~4 years) and check if the pixel time has wrapped back around to 0
// If the counter overflow happens before reading the new heartbeat
// while( abs(m_syncTime[detectorID]-time) > 0x0000020000000000 ){
......@@ -517,33 +506,33 @@ bool Timepix3EventLoader::loadData(Clipboard* clipboard, Detector* detector, Pix
}
}
// Convert final timestamp into ns:
const double timestamp = time / (4096 * 0.04);
// If events are loaded based on time intervals, take all hits where the
// time is within this window
// Ignore pixels if they arrive before the current event window
// if(temporalSplit && ((double)time/(4096. *
// 40000000.)) < (clipboard->get_persistent("currentTime")) ){
// if(temporalSplit && (timestamp < clipboard->get_persistent("currentTime")) {
// continue;
// }
// Stop looking at data if the pixel is after the current event window
// (and rewind the file
// reader so that we start with this pixel next event)
if(temporalSplit &&
((double)time / (4096. * 40000000.)) > (clipboard->get_persistent("currentTime") + m_eventLength)) {
if(temporalSplit && (timestamp > (clipboard->get_persistent("currentTime") + m_eventLength))) {
(*m_file_iterator[detectorID])->seekg(-1 * sizeof(pixdata), std::ios_base::cur);
break;
}
// Otherwise create a new pixel object
Pixel* pixel = new Pixel(detectorID, row, col, (int)tot, time);
Pixel* pixel = new Pixel(detectorID, row, col, (int)tot, timestamp);
devicedata->push_back(pixel);
// bufferedData[detectorID]->push_back(pixel);
m_prevTime = time;
m_prevTime = timestamp;
}
// Stop when we reach some large number of pixels (if events not based on
// time)
// Stop when we reach some large number of pixels (if events not based on time)
if(!temporalSplit && devicedata->size() >= m_numberPixelHits) {
break;
}
......
src/algorithms/Timepix3EventLoader/Timepix3EventLoader.h
View file @ b31145f6
......@@ -23,9 +23,7 @@ namespace corryvreckan {
bool loadData(Clipboard* clipboard, Detector* detector, Pixels*, SpidrSignals*);
void maskPixels(Detector*, std::string);
// cofngiuration paramaters:
bool applyTimingCut;
double m_timingCut;
// configuration paramaters:
double m_triggerLatency;
std::string m_inputDirectory;
int m_minNumberOfPlanes;
......
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