saleae-iec-analyser/source/SimpleSerialAnalyzer.cpp

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#include "SimpleSerialAnalyzer.h"
#include "SimpleSerialAnalyzerSettings.h"
#include <AnalyzerChannelData.h>
SimpleSerialAnalyzer::SimpleSerialAnalyzer()
: Analyzer2(),
mSettings( new SimpleSerialAnalyzerSettings() ),
mSimulationInitilized( false )
{
SetAnalyzerSettings( mSettings.get() );
}
SimpleSerialAnalyzer::~SimpleSerialAnalyzer()
{
KillThread();
}
void SimpleSerialAnalyzer::SetupResults()
{
mResults.reset( new SimpleSerialAnalyzerResults( this, mSettings.get() ) );
SetAnalyzerResults( mResults.get() );
mResults->AddChannelBubblesWillAppearOn( mSettings->mInputChannel );
}
void SimpleSerialAnalyzer::WorkerThread()
{
mSampleRateHz = GetSampleRate();
mSerial = GetAnalyzerChannelData( mSettings->mInputChannel );
if( mSerial->GetBitState() == BIT_LOW )
mSerial->AdvanceToNextEdge();
U32 samples_per_bit = mSampleRateHz / mSettings->mBitRate;
U32 samples_to_first_center_of_first_data_bit = U32( 1.5 * double( mSampleRateHz ) / double( mSettings->mBitRate ) );
for( ; ; )
{
U8 data = 0;
U8 mask = 1 << 7;
mSerial->AdvanceToNextEdge(); //falling edge -- beginning of the start bit
U64 starting_sample = mSerial->GetSampleNumber();
mSerial->Advance( samples_to_first_center_of_first_data_bit );
for( U32 i=0; i<8; i++ )
{
//let's put a dot exactly where we sample this bit:
mResults->AddMarker( mSerial->GetSampleNumber(), AnalyzerResults::Dot, mSettings->mInputChannel );
if( mSerial->GetBitState() == BIT_HIGH )
data |= mask;
mSerial->Advance( samples_per_bit );
mask = mask >> 1;
}
//we have a byte to save.
Frame frame;
frame.mData1 = data;
frame.mFlags = 0;
frame.mStartingSampleInclusive = starting_sample;
frame.mEndingSampleInclusive = mSerial->GetSampleNumber();
mResults->AddFrame( frame );
mResults->CommitResults();
ReportProgress( frame.mEndingSampleInclusive );
}
}
bool SimpleSerialAnalyzer::NeedsRerun()
{
return false;
}
U32 SimpleSerialAnalyzer::GenerateSimulationData( U64 minimum_sample_index, U32 device_sample_rate, SimulationChannelDescriptor** simulation_channels )
{
if( mSimulationInitilized == false )
{
mSimulationDataGenerator.Initialize( GetSimulationSampleRate(), mSettings.get() );
mSimulationInitilized = true;
}
return mSimulationDataGenerator.GenerateSimulationData( minimum_sample_index, device_sample_rate, simulation_channels );
}
U32 SimpleSerialAnalyzer::GetMinimumSampleRateHz()
{
return mSettings->mBitRate * 4;
}
const char* SimpleSerialAnalyzer::GetAnalyzerName() const
{
return "Simple Serial";
}
const char* GetAnalyzerName()
{
return "Simple Serial";
}
Analyzer* CreateAnalyzer()
{
return new SimpleSerialAnalyzer();
}
void DestroyAnalyzer( Analyzer* analyzer )
{
delete analyzer;
}