Martino Ferrari
65 lines
2.0 KiB
C++
65 lines
2.0 KiB
C++
/**
|
|
* @file TimeArrayGAM.h
|
|
* @brief GAM that expands a scalar timer value into a per-sample uint32 time array.
|
|
* @date 19/05/2026
|
|
* @author Martino Ferrari
|
|
*
|
|
* @details Each Execute() call reads one uint32 scalar input (time in microseconds,
|
|
* e.g. from LinuxTimer) and fills a uint32[N] output array where element[k] holds
|
|
* the reconstructed timestamp of sample k:
|
|
*
|
|
* Anchor = FirstSample: out[k] = input + k * period_us
|
|
* Anchor = LastSample: out[k] = input - (N-1-k) * period_us
|
|
*
|
|
* The resulting time array is suitable as the TimeSignal for a UDPStreamer signal
|
|
* configured with TimeMode = FullArray, providing exact per-sample timestamps.
|
|
*
|
|
* Configuration:
|
|
* <pre>
|
|
* +TimeArrayGAM1 = {
|
|
* Class = TimeArrayGAM
|
|
* SamplingRate = 1000000.0 // Sample rate in Hz (must match data signal)
|
|
* Anchor = FirstSample // FirstSample (default) or LastSample
|
|
* InputSignals = {
|
|
* Time = { DataSource = DDB; Type = uint32 }
|
|
* }
|
|
* OutputSignals = {
|
|
* TimeArray = { DataSource = DDB; Type = uint32; NumberOfElements = 1000 }
|
|
* }
|
|
* }
|
|
* </pre>
|
|
*
|
|
* Exactly one uint32 input signal and one uint32 output array are required.
|
|
*/
|
|
|
|
#ifndef TIMEARRAYGAM_H_
|
|
#define TIMEARRAYGAM_H_
|
|
|
|
#include "CompilerTypes.h"
|
|
#include "GAM.h"
|
|
|
|
namespace MARTe {
|
|
|
|
class TimeArrayGAM : public GAM {
|
|
public:
|
|
CLASS_REGISTER_DECLARATION()
|
|
|
|
TimeArrayGAM();
|
|
virtual ~TimeArrayGAM();
|
|
|
|
virtual bool Initialise(StructuredDataI &data);
|
|
virtual bool Setup();
|
|
virtual bool Execute();
|
|
|
|
private:
|
|
float64 samplingRate; /**< Sample rate [Hz] */
|
|
bool anchorIsFirst; /**< true = FirstSample anchor, false = LastSample */
|
|
uint32 nElements; /**< Number of output elements */
|
|
uint32 *inputTime; /**< Pointer to scalar input (microseconds, uint32 from LinuxTimer) */
|
|
uint64 *outputBuf; /**< Pointer to output array (nanoseconds, uint64) */
|
|
};
|
|
|
|
} /* namespace MARTe */
|
|
|
|
#endif /* TIMEARRAYGAM_H_ */
|