12/8/2002 1:04 AM

Reference histogram from run 10013:

Obtained using:

df = new TPhDAQFile("PhoRaw010013s000.pdaq");

.x $PHATHOME/macros/compression/showFEC.C(1)

Fig. 212071 and 2. Normal.

Fig. 212073. Troubled run 117

Fig.

with TPhRawHitFEC::fRecoverPedestals = kFALSE;

I would say this looks like 212071 subtracted from 512

12/8/2002 3:28 PM

Fig. 2120801. Simulated Silicon with TPhRawHitFEC::fRecoverPedestals = kFALSE

Fig. 2120801. Simulated Silicon with TPhRawHitFEC::fRecoverPedestals = kTRUE

In this case:

root [16] TPhRawHitFEC *fec = (TPhRawHitFEC *)rawdata->FindObject("FEC_1")

root [17] fec

(class TPhRawHitFEC*)0x91e4900

root [18] fec->Print()

FEC# 1 trailer:

0: U = 0000 L = 0000

2: U = 0000 L = 0000

4: U = 0000 L = 0000

6: U = 0000 L = 0000

8: U = 0000 L = 0000

10: U = 0000 L = 0000

12: U = 0000 L = 0000

14: U = 0000 L = 0000

RunMode, FEC Number: 0000

FIFO Error : 0000

ShiftOut Error : 0000

EOF bit patterns : 0000

MDC error code : 209c

Half miss channel : 0a0c

MDC status code : 02b0

Synchronisation : 5800

FEC# 1 - unpacked hits:

String 0[768]:

0:1151 1: 973 2: 878 3: 989 4: 963 5:1194 6:1146 7: 387

8: 937 9: 892 10: 984 11: 857 12: 930 13: 979 14: 931 15: 428

16: 917 17: 943 18:1005 19: 986 20:1048 21: 896 22:1246 23: 454

24: 782 25: 979 26: 987 27:1083 28:1012 29:1046 30: 977 31: 452

32: 799 33: 905 34: 929 35:1094 36:1076 37: 962 38:1017 39: 390

40: 901 41: 855 42: 862 43: 880 44: 832 45: 992 46: 952 47: 474