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User name R. Michaels
Log entry time 03:25:11 on October23,2009
Entry number 296209
keyword=more ADC18 tests
Try Integ=1250 with ovs=9. Run 13541
On the scope, the monitor-output of the ADC18 in ROC23 looks
peculiar. It ramps up, but there are some jumps as if there
Trying ovs=7, Integ=1600. Run 13542.
Return to ovs=0, Integ=13200. Run 13543.
Even with this config, roc23, slot0, chan0 has base=peak=0.
Reboot the crates (not that I expect it to help)
Run 13545. ovs=0 again. (13544 is junk)
Still has base=peak=0 in roc23. Very odd.
This didn't happen for an earlier run with new software.
03:00 Roll back to the software we've been using for months.
(happex3_ts_ok5.crl and hapAdc18Lib_ok2.c)
Run 13546 with default config.
Now roc23 slot0 chan0 becomes normal again !
Return to new ADC18 code with ovs=0. Run 13547.
roc23 slot0 chan0 looks normal. Seems like something about the
old code "shook it up" so that base and peak become nonzero.
Go to ovs=0, Integ=1300. Still new ADC18. Run 13548.
roc23 slot0 chan0 looks ok (?!) with ped about 1/10th.
Spot checked a few other roc/slot/chan. Seems ok.
Something is not reproducible here. There was a period
of time when roc23,slot0,chan0 was "stuck" with base=peak=0
but it is ok at the moment.
I did not get any Lumi data with target because Moller
tests are still underway. Projected to end at 4 am.
03:15 Roll back to old software again.
Run 13549 junk, had to reboot ROC31.
Run 13550 back to normal config. Data looks ok. Will leave it now.
=========== TEST FINISHED ============