CAEN VX1190A TDC
CAEN VX1190A multihit TDC, 96 channels
User Manual
File:VX1190A UserManualRev13.pdf
Addressing
From the picture and the above diagram it looks like the module is at the following settings
<bits 19-16>=0x01
<bits 23-20>=0x02
<bits 27-24>=0x08
<bits 31-29>=0x00
ROL initializing
# Address for TDC CAEN 1190
const NC1190 = 1
const C1190_ADDR = 0x210000
const C1190_OFFSET = 0x10000
# Maximum number of 32bit words from C1190
const C1190_MAX_DATA = 128
const C1190_BLOCK_READ = 1
# Note that C1190_ADDR must be A32 for 2eSST, A24 okay for BLT/MBLT
tdc1190Init(C1190_ADDR,C1190_OFFSET,NC1190,1);
tdc1190SetTriggerMatchingMode(i);
tdc1190SetEdgeResolution(i,100);
tdc1190EventFifo(i,0); /* Must be enabled(disabled) for Linked List (direct) DMA */
tdc1190SetBLTEventNumber(i,C1190_BLOCK_READ);
output from ROC_CODA when after download
Initialized TDC ID 0 at address 0xa6b79000 tdc1190SetEdgeResolution(0): Set Edge Resolution to 100 ps
Errors
invalid event pointer
tdc1190ReadBlock: ERROR in DMA transfer Initialization 0xffffffff jlabgefDmaSend: ERROR: the_event pointer is invalid!
gen_int_list.crl
#
# General User readout list
#
# David Abbott, TJNAF 2000
readout list GEN_USER
maximum 1024,512
general readout
# A16 Address for SIS3610 Module
const TRIG_ADDR=0x3800
# Address for TDC CAEN 1190
const NC1190 = 1
const C1190_ADDR = 0x210000
const C1190_OFFSET = 0x10000
# Maximum number of 32bit words from C1190
const C1190_MAX_DATA = 128
const C1190_BLOCK_READ = 1
# Note that C1190_ADDR must be A32 for 2eSST, A24 okay for BLT/MBLT
extern int bigendian_out;
begin download
variable res, i
vmeOpenDefaultWindows();
s3610Init(TRIG_ADDR,0,0);
# When sending to a Linux Host set bigendian_out = 0
bigendian_out = 1;
log inform "Initializing TDC 1190"
# SETUP caen1190
%%
tdc1190Init(C1190_ADDR,C1190_OFFSET,NC1190,1);
tdc1190SetTriggerMatchingMode(0);
tdc1190SetEdgeResolution(0,100);
tdc1190EventFifo(0,0); /* Must be enabled(disabled) for Linked List (direct) DMA */
tdc1190SetBLTEventNumber(0,C1190_BLOCK_READ);
tdc1190BusError(0,C1190_BLOCK_READ); /* 1: BERR/2eTERM for block reads (DMA), 0 for SCT */
/* tdc1190SetWindowWidth(0,51176); */
/* tdc1190SetWindowOffset(0,-800001); */
%%
log inform "User Download Executed"
end download
begin prestart
variable jj, adc_id
log inform "Entering User Prestart"
init trig source GEN
link async trig source GEN 1 to usrtrig and usrtrig_done
event type 1 then read GEN 1
%%
tdc1190Status(0);
%%
log inform "User Prestart Executed"
end prestart
begin end
CDODISABLE(GEN,1,1);
log inform "User End Executed"
end end
begin pause
CDODISABLE(GEN,1,1);
log inform "User Pause Executed"
end pause
begin go
log inform "Entering User Go"
CDOENABLE(GEN,1,1);
end go
begin trigger usrtrig
variable ii, event_ty, event_no, datascan, imod, nwrds
variable evStored
rol->dabufp = (long *) 0;
open event type EVTYPE of BT_UI4
%%
/* Check for valid data here */
for(ii=0;ii<100;ii++)
{
datascan = tdc1190Dready(0);
if (datascan>0)
{
break;
}
}
if(datascan>0)
{
// Get the TDC data from all modules... rflag=1 block read, 0 for SCT
for(imod=0;imod<1;imod++)
{
nwrds = tdc1190ReadBlock(imod,rol->dabufp,C1190_MAX_DATA,C1190_BLOCK_READ);
if(nwrds < 0)
{
logMsg("ERROR: in transfer (event = %d), status = 0x%x\n",
event_no,nwrds);
*rol->dabufp++ = 0xda000bad;
}
else
{
rol->dabufp += nwrds;
}
}
}
else
{
evStored = tdc1190GetEventStored(0);
logMsg("ERROR: Data not ready in event %d evStored = %d\n",event_no,evStored);
*rol->dabufp++ = 0xda000bad;
}
%%
close event
end trigger
begin done usrtrig
end done
begin done
# Re-enable Trigger Source here
s3610IntAck(1);
end done
begin status
end status
ROC EB crash when component released
When the r1dc components are released from the CODA GUI in order to reload the r1dc readoutlist , the SIS3610 will have its VU light go green, CODA_ROC and CODA_EB will crash.
The error message printed to the screen by CODA_EB is
thread exit for rocdaq1 get_cb_data returned end of file ROC mask 8 force_end 2 Segmentation fault
Data Record
General Header:
- bits 0->4 = GEO =0x01000
- bits 5->26 = Event counter
- bits 27->31 = global header = 01000
0x400083a8 = 1000000000000001000001110101000
event number = 0x0000000000010000011101 = 0x41d
0x400083c8 = 1000000000000001000001111001000
event number = 0000000000010000011110 = 0x41E
0x400083e8=1000000000000001000001111101000
event number = 0000000000010000011111 = 0x41F
TDC header
- bits 0->11 = Bunch ID
- bits 12->23 = event id
- bits 24->25 = TDC
- bit 26 nothing
- bits 27->31 = 0x00001
0x841d563 = 0001000010000011101010101100011
TDC = 00 event id=010000011101=41D
0x841efe2 = 0001000010000011110111111100010
00 010000011110=41E
0x841f39f=0001000010000011111001110011111
0001 0 TDC=00 event id=010000011111=41F bunch id=001110011111
TDC measurement
- bits 0->18 = measurement
- bits 10->25= channel
- bit 26: leadng or trailing
- bits 27->31 = 00000
TDC trailer
- bits 0->11 = word count
- bits 12->23 = event ID
- bits 24->25 - TDC
- bits 26 nothing
- bits 27->31 = 0x00011
0x1841d002 =00011000010000011101000000000010
TDC error
bits:0->14 Error flag
- bits 15->23 = blank
- bits 24->25 = TDC #
- bit 26 blank
- bits 27->31=0x00100