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PXL RDO System Requirements And meeting goals 11/12/2009BNL_CD-1_SENSOR_RDO - LG1.

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Presentation on theme: "PXL RDO System Requirements And meeting goals 11/12/2009BNL_CD-1_SENSOR_RDO - LG1."— Presentation transcript:

1 PXL RDO System Requirements And meeting goals 11/12/2009BNL_CD-1_SENSOR_RDO - LG1

2 11/12/2009BNL_CD-1_SENSOR_RDO - LG2 Talk Outline Goals and structure of meeting. Simple requirements. Detail requirements. Tasks.

3 Structure of meeting Main goals – Develop architecture and full implementation plan for PXL main RDO and all other requirements. Get probe testing working in a scripted way on wire bonded sensors. Do first pass design of new daughter card. Do a first pass on the full implementation plan and reassess. Review and reassess individual task responsibilities. MTB final design complete. Schedule proposal (subject to change) - 02/06 – 02/07– General Architecture meeting. Go over requirements and proposed solutions. 02/08 – 02/09 – Work on probe card and firmware scripting and testing. 02/10 – Architecture meeting 02/06/2012Ultimate RDO Requirements - LG3

4 11/12/2009BNL_CD-1_SENSOR_RDO - LG4 RDO Requirements and Design In addition to the detailed requirements imposed by the interface to the sensors, the RDO system shall: Triggered detector system fitting into existing STAR infrastructure (Trigger, DAQ, etc.) Deliver full frame events to STAR DAQ for event building at approximately the same rate as the TPC (1 kHz for DAQ1000). Have live time characteristics such that the Pixel detector is live whenever the TPC is live (< 5% dead time). Reduce the total data rate of the PXL detector to a manageable level (< TPC rate of ~1MB / event). Reliable, robust, cost effective, etc. Furthermore, this RDO system will be the basis of the future sensor testing including production probe testing so additional functionality will be included to enable this system to have the needed additional capabilities.

5 the detailed requirements imposed by the interface to the sensors JTAG Configuration Power on sequence (mostly for Ultimate v1.0) – RSTB 1 clock indeterminacy from START Clock START LVDS data outputs Temperature sensors 02/06/2012Ultimate RDO Requirements - LG5

6 Triggered detector system fitting into existing STAR infrastructure (Trigger, DAQ, etc.) TCD –Respond to triggers –Respond to L2 accepts –Respond to aborts –Produce busy DAQ –Generate event format – show trigger info in header –Configuration scripts to Tonko to run – run control? Slow controls (Develop architecture document) –Error monitoring path –Configuration path –Control of PS for VME crate and sensor power Event monitoring (Develop architecture document) –Multiplicity, dead pixel/areas, hot pixel/areas, etc. 02/06/2012Ultimate RDO Requirements - LG6

7 Deliver full frame events to STAR DAQ for event building at approximately the same rate as the TPC (1 kHz for DAQ1000) We are an integrating detector, this limits statistical fluctuation due to interaction multiplicity variation. (pileup is ~1/2 of the hits that we see). We are triggered only when the TPC is triggered. We need to match the TPC live time for the most part. We need enough buffers to handle a burst of (8?) triggers separated by ~ 50 us. 02/06/2012Ultimate RDO Requirements - LG7

8 Reduce the total data rate of the PXL detector to a manageable level (< TPC rate of ~1MB / event) Our expected event size is ~ kB for data. Header needs to be defined. 02/06/2012Ultimate RDO Requirements - LG8

9 Furthermore, this RDO system will be the basis of the future sensor testing including production probe testing so additional functionality will be included to enable this system to have the needed additional capabilities. ADC for analog output sensor testing. Scripted JTAG control for discriminator transfer function generation. Spare i/o for control interface to testing boards and probe cards. RDO mode for beam tests and cosmic ray testing. SRAM for event buffering for bursts. 02/06/2012Ultimate RDO Requirements - LG9

10 Tasks Architecture design –Meet all requirements Implementation plan –Define modules –Interfaces, functional descriptions, levels, documentation, testing plans, test benches, etc. –schedule Daughter card design –Needed functionality –Production vs. testing –Ties to slow controls, etc. Probe card development –Full definition of probe testing chain, database and relevant saved parameters –Sensor identification, handling, storage, sorting, etc. –Building measured parameters into JTAG ladder configuration scripts 02/06/2012Ultimate RDO Requirements - LG10

11 Tasks MTB design –Power on sequencing design –Temperature diode readout design and testing –VHDCI connector modifications OK? USB testing –FDDI module testing –Testing of Bitwise module Full task list with names Full areas of responsibility 02/06/2012Ultimate RDO Requirements - LG11

12 Future timeline/tasks 02/06/2012Ultimate RDO Requirements - LG12


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