class Packet_emc_fpga: public Packet_w4

This is the packet which deals with data in EMC_FPGA format.

Inheritance:

Public Methods

virtual int iValue(const int channel, const char *what)

with the "what" parameter you can decide which aspect of the data is made available.

int iValue(const int channel, const int iy)

This gives access to the 5 data words per channel, in case the use wants to look at that raw information.

void dump( OSTREAM& )

this interface got a special keyword for the benefit of the LVL2 Trigger.

Inherited from Packet_w4:

Inherited from Packet_A:

Inherited from Packet:

Public Methods

virtual float rValue(const int channel)

virtual float rValue(const int channel, const char * what)

virtual float rValue(const int channel, const int iy)

virtual int getArraylength(const char * what ="")

virtual int fillIntArray(int destination[], const int length, int * nw, const char * what="")

virtual int fillFloatArray(float destination[], const int length, int * nw, const char * what="")

virtual int* getIntArray(int * nw, const char * ="")

virtual float* getFloatArray(int * nw, const char * ="")

virtual int is_pointer_type() const

virtual int convert()

virtual int getLength() const

virtual int getDebugLength() const

virtual int getIdentifier() const

virtual int getPadding() const

virtual int getStructure() const

virtual int getHitFormat() const

virtual int getDataLength() const

virtual voidfullIdentify (std::ostream& os = std::cout) const (ostream & os = cout) const

virtual void gdump(const int how = EVT_HEXADECIMAL, std::ostream& os = std::cout) const

Public

virtual int iValue(const int channel, const char *what)

with the "what" parameter you can decide which aspect of the data is made available. This class is one of those which have several different "kinds" of data; we use this to bring up the AMU cell information and all the misc. items in the FEM headers and trailers.

The AMU info is available as

 packet->iValue(0,"AMU") AMU cell from timing conversion 
 packet->iValue(1,"AMU") AMU cell from "pre" conversion
 packet->iValue(2,"AMU") AMU cell from "post" conversion

In addition, there is

 packet->iValue(0,"EVTNR")    The FEM event number
 packet->iValue(0,"MODULE")   The Module ID
 packet->iValue(0,"FLAG")     The Module ID
 packet->iValue(0,"BCLK")     Beam clock value from FEM
 packet->iValue(i,"PARITY")   The longitudinal parity
 packet->iValue(i,"SUMMARY")  The DCM summary word

int iValue(const int channel, const int iy)

This gives access to the 5 data words per channel, in case the use wants to look at that raw information.

We chose to implement the 5 words of information as the two-dimensional interface, so packet->iValue(k,i) gives you the word "i" of channel k, where i is

packet->iValue(k,0) timing tag (TDC)
packet->iValue(k,1) high gain post sample
packet->iValue(k,2) low gain post sample
packet->iValue(k,3) high gain pre sample
packet->iValue(k,4) low gain pre sample

and "k" is the channel number from 0 through 143.

void dump( OSTREAM& )

this interface got a special keyword for the benefit of the LVL2 Trigger. Calling

struct emcChannelLongList ecl[144]; int nw, NumberOfChannels; NumberOfChannels = p->fillIntArray ( (int *) ecl, sizeof(*ecl), &nw, "SPARSE");

returns you the actually fired channels.

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