HBD electronics status All the ADC and XMIT boards are installed. –Top 3 crates are for the ADC, XMIT boards –Bottom crate is for test pulse boards/future trigger boards. Test pulse boards –1 installed, 6 more tested and ready to be installed. We need to have 6 boards installed. The HBD boards need to be readout through the new daughter card, FE3, in the DCM. –All daughter cards installed. –We can readout whole HBD detectors as a single partition.

Tasks need to done. Hardware side –Installed remaining test pulse boards and cable up all test pulse cables. Software side –Currently we only readout 8 ADC samples per channel, too many data words per packet. We need to readout 12 samples in the final system. We just increase “maximum data word allowed per packet” in the DCM software. Test will follow soon –We need data checking software Event, clock alignment checking etc. We probably has one bad DCM daughter card.. –Need to test if there were more bad daughter cards. »Fixed them together…

Tasks need to be done (cont.) Zero suppression code. –We have one version of zero suppression code existed. We should test this version before development a new one. Sample(n) – sample(m) > threshold –One sets “n” and “m” per fiber  we set the “n” and “m” for the whole detectors. –We can set threshold per channel. –If (sample(n) – sample(m) > threshold), we keep all data in that channel. –We need to do some work in the DCM controller/DSP software to try it out To test the zero suppression algorithm we will split one optical fiber through splitter. We read one fiber with zero suppression and the other one unsuppressed. We could set threshold at 2-3 sigma of the noise. Right now the data packet is about 2400 words. We need to bring the packet size below 200 words. Calibrate the preamp response.