CMU - Naomi's secondary event readout file
- EVENT readout list
- Secondary readout list responsible for
- getting data from the primary readout list and then
- passing it to the Output queue.
- David Abbott, CEBAF 1996
- customised NSJ June 2013
readout list ROL2
- maximum 128,10 <-original value
maximum 37440, 100 #nchannels = 72 nsamples=128
- maximum 144,100 #1 channel, 10 samples
polling
event readout
const ADC125_NCHANNELS=72
const ADC125_NSAMPLES=128 # even numbers only
const ADC125_MULTI=5
const ADC125_THRES=400 # 4 x (ped + 3 sig)
const ADC125_NTHRES=6 #min # consec samples over threshold
- pedestal is ~ 60 with sigma 15 to 20 all x 4 - because my decoding programs divide by 4
- ped + 5 sig is 60 + 75 = 148 x 4 = 584
- ped + 3 sig is 60 + 45 = 105 x 4 = 420
int ii; /*counter - input buffer*/
int x; /*pos in input buffer of start of channel*/
int ok[ADC125_NCHANNELS]; /*array to identify good channels*/ int multi; /*number of good channels */ int count; /*current tally of samples over threshold in current channel*/ int ndata; /*size of data bank to output*/
int ch; /*counter - current adc channel number*/ int isamp; /*counter - sample from current adc channel*/
begin download
log inform "User Download 2 Executed"
end download
begin prestart
variable jj, adc_id
log inform "Entering User Prestart 2"
init trig source EVENT link sync trig source EVENT 1 to ntrig and ntrig_done event type 1 then read EVENT 1
rol->poll = 1;
log inform "User Prestart 2 executed"
end prestart
begin end
log inform "User End 2 Executed"
end end
begin pause
log inform "User Pause 2 Executed"
end pause
begin go
log inform "Entering User Go 2"
end go
begin trigger ntrig
- copy event
get event
%%
/*printf("***event_list event length %i \n",EVENT_LENGTH);
for (ii=-2; ii<2; ii++) {
printf("input[%i] %i \n",ii,INPUT[ii]);
}
*/
if (rol->dabufp != NULL) { /* Output Pointer should be set by CODA 2.1 ROC */
/* find out which are good channels */
multi=0;
for (ch=0; ch<ADC125_NCHANNELS; ch++) {
ok[ch]=0; //this channel above threshold
count=0; //count consecutive over-threshold samples
x = ch*ADC125_NSAMPLES;
for (isamp=0; isamp<ADC125_NSAMPLES; isamp++) {
if ( (INPUT[x+isamp] & 0xfff) > ADC125_THRES) {
count++;
if (count>=ADC125_NTHRES) ok[ch]=1;
} else {
count=0;
}
if (ok[ch]==1) break;
if ( (INPUT[x+isamp] & 0xfff0000) > ADC125_THRES) {
count++;
if (count>=ADC125_NTHRES) ok[ch]=1;
} else {
count=0;
}
if (ok[ch]==1) break;
}
if (ok[ch]==1) logMsg(" ch %i over threshold\n",ch);
//if (ok==0) logMsg(" ch %i UNDER threshold\n",ch);
if (ok[ch]==1) multi++;
}
logMsg(" multiplicity %i\n",multi);
/* write out event header */
ndata = 0;
if (multi >= ADC125_MULTI) ndata = 1 + multi*(1 + ADC125_NSAMPLES);
*rol->dabufp++ = ndata + 2; /* event header (event number) */ *rol->dabufp++ = INPUT[-1]; /* event header (event number) */ *rol->dabufp = ndata;
printf("output[-2] %i \n", ndata + 2);
printf("output[-1] %i \n",INPUT[-1]);
printf("output[0] %i \n", ndata);
/* now write out good channels */
if (multi >= ADC125_MULTI) {
rol->dabufp++; *rol->dabufp = multi;
printf("output[1] %i \n",multi);
for (ch=0; ch<ADC125_NCHANNELS; ch++) {
if (ok[ch]==1) {
rol->dabufp++;
*rol->dabufp = ch;
x = ch*ADC125_NSAMPLES;
for (isamp=0; isamp<ADC125_NSAMPLES; isamp++) {
rol->dabufp++;
*rol->dabufp = INPUT[x+isamp];
}
} /* end if ok */
} /* end for ch */
} /* end if multi */
//for (ii=-2;ii<EVENT_LENGTH;ii++) /* Copy event, including Header from Input to Output */ // *rol->dabufp++ = INPUT[ii];
}else{
printf("ROL2: ERROR rol->dabufp is NULL -- Event lost\n");
}
%%
end trigger
begin done ntrig
end done
begin done
end done
begin status
end status
