Download presentation
Presentation is loading. Please wait.
1
Detector Array Controller Based on First Light First Light PICNIC Array Mux PICNIC Array Mux Image of ESO Messenger Front Page M.Meyer June 05 NGC High Speed Serial Link Technology [ IRDT and ODT ] [ IRDT and ODT ]
2
Conventional Approach : Acquisition System (IRACE) Communication and Data Transfer and Data TransferSequencer Clock and Bias AcquisitionModule(s) PCIInterface
3
NGC Prototype - Minimum System Back-End and Front-End ( Four Channels ) NGC is a modular system for IR detector and CCD readout with a Back-end, a basic Front-end unit containing a complete four channel system on one card and additional boards like multi channel ADC units and more... There is no processor, no parallel inter- module data bus on the front-end side. Advanced FPGA link technology is used to replace conventional logic Connection between Back and Front-end with high speed fiber links at 2.5GBit/s Connection between Front-end modules with high speed copper links at 2.5GBit/s. Power Consumption on this Front-end is less than 10 Watts ( Excluding power supply ) This Front-End system does not require big cooling boxes
4
System Noise on Prototype 1 2 3 4
5
Back-End Back-End VirtexII Pro Contains : PCI 64 IF (IP) Communication DMA Data Transfer Fiber optics
6
Back-End Function is based on the XILINX Virtex Pro FPGA XC2VP7 FF 672 Back-End PCI is a 64 Bit PCI board FPGA contains PCI interface to Communication functions Communication functions DMA data channel DMA data channel Status and Command Status and Command Direct interface from FPGA to PCI without glue logic PCI master and PCI slave are independent Scatter – Gather DMA implemented Communication and data transfers all on serial link with RocketIO transceivers Handshake communication to Front-End Data rate on one channel between front and back-end ~ 200MByte/s
7
Front-End Front-End CLOCK and BIAS VirtexII Pro Contains : Communication Data transfer SequencerTelemetry Glue logic Acquisition 4 Channels 16/18 Bit Monitoring Telemetry 16 Bit
8
Front-End
9
Front-End Function is based on the XILINX Virtex Pro FPGA XC2VP7 FF 672 FPGA contains link interface for communication and data transfer with RocketIO transceivers, sequencer, system administration, interface to acquisition, clock and bias, telemetry and monitoring Four ADC channels ( 16 or 18Bit) 16 clocks, 20 biases Telemetry Monitoring Data rate on one channel between front-end modules and front to back-end ~ 200MByte Handshake for communication to back-end Galvanic isolated trigger input and control outputs Connection to detector ASIC’s - all communication and data transfer to the back-end can be handled with the same firmware already contained in the FPGA
10
Virtex Pro Internals Device utilization summary: Selected Device : 2vp7ff672-5 Number of Slices: 2508 out of 4928 50% Number of Slice Flip Flops: 3043 out of 9856 30% Number of Slice Flip Flops: 3043 out of 9856 30% Number of 4 input LUTs: 4190 out of 9856 42% Number of 4 input LUTs: 4190 out of 9856 42% Number of bonded IOBs: 124 out of 396 31% Number of bonded IOBs: 124 out of 396 31% Number of TBUFs: 160 out of 2720 5% Number of TBUFs: 160 out of 2720 5% Number of BRAMs: 25 out of 44 56% Number of BRAMs: 25 out of 44 56% Number of GCLKs: 3 out of 16 18% Number of GCLKs: 3 out of 16 18% Number of GTs: 4 out of 8 50% Number of GTs: 4 out of 8 50% Number of DCMs: 1 out of 4 25% Number of DCMs: 1 out of 4 25% Signals to route : 22530 Used language : VHDL
11
Communication and Data Transfer Communication and data transfer is handled with the Virtex Pro FPGA’s Gigabit transceivers The communication between all system modules is based on packet transmission over serial links A packet structure is defined to address a function ( e.g. a register or memory in a front-end module) for read or write From the Back-End ( PCI board ) the packets can be routed to and through each board in the Front-End Data are routed with the same structure from the acquisition modules to the Back-End
12
Applications and Architectures
13
Basic System
14
More Bandwidth
15
More Clocks, Biases / Two Detectors synchronized …
16
More AQ Channels
17
More Bandwidth and Different Routing
18
Even more channels
19
Route to Dedicated Interfaces
20
Distribute/Copy Data
21
Collecting /Routing /Preprocessing
22
Detector Array Controller Based on Two Posters on the same Topic Two Posters on the same Topic NGC Front-end for CCDs and AO applications - Javier Reyes Software for the New Generation Detector Controller - Claudio Cumani M.Meyer June 05 NGC High Speed Serial Link Technology
23
Engineers Bad Days or The Real World
24
How many Errors will be on ? It’s a 10 Layer board with BGA’s !
25
Virtex BGA - One Connection too much
26
Virtex BGA - Missing Connection
28
Front-End Basic Board Sequencer Module Sequencer Codes Sequencer Codes 000 Stop Interpreter Stops Pattern Interpretation 001 EXEC Pattern 001 EXEC Pattern 010 LOOP 010 LOOP 011 LOOP END 100 LOOP INFINITE 101 JUMP SUBROUTINE 101 JUMP SUBROUTINE 110 RETURN SUBROUTINE 111 Reserved Sequencer is completely contained within the FPGA 100MHz design = 10ns resolution Firmware interpreter for Sequencer Codes within the FPGA Galvanic isolated high speed trigger input and control outputs
Similar presentations
© 2024 SlidePlayer.com. Inc.
All rights reserved.