April 30, 2014CLBv2, Vidyo Peter Jansweijer Nikhef Amsterdam Electronics- Technology KM3NeT CLBv2 1

April 30, 2014CLBv2, Vidyo Peter Jansweijer Nikhef Amsterdam Electronics- Technology Done: ◦ Add AES sources to top level schematic  Newest sources from Antonio in place ◦ Inspect I2C timing issue with Octopus  Done and understood (I2C abort command didn’t check for completion) ◦ Add Multi boot sources to LM32_2 nd and test SPI Flash  Added (had issue with ICAPE2 optimization for Precision) Currently: ◦ Solve 4 ns issue  Solved but not completely understood… ◦ Clock stability test (in cooperation with University of A’dam) ◦ Get experience with measuring calibration parameters (in cooperation with Mar van der Hoek) ◦ Ethernet flow control (PAUSE frames) discussion with 7- Solutions and Athenes. To do list: 2

April 30, 2014CLBv2, Vidyo Peter Jansweijer Nikhef Amsterdam Electronics- Technology Soon: ◦ Add StMachine, TDC sources to top level schematic ◦ Prepare for system test ◦ EMI test Shouldn’t the registers of ICAPE2 in multiboot be readable and writeable in a generic way (mapped on the wishbone bus)? This opens the possibility to use all: 1. Warm Boot Start Address (mboot) 2. Watchdog Timer 3. Boot History Status To do list: 3

April 30, 2014CLBv2, Vidyo Peter Jansweijer Nikhef Amsterdam Electronics- Technology Clock stability tests (cooperate with UVA) 4 10 MHz reference PPS 200 mbps PPS Other data generators Measure long term stability

April 30, 2014CLBv2, Vidyo Peter Jansweijer Nikhef Amsterdam Electronics- Technology Actual asymmetry measurement using WR (measure unknown calibration parameters in cooperation with Mar van der Hoek) Measurement 1 5 Round Trip Time (Rtt from WR GUI): ◦ Rtt(f1) =  +  f1 t1t1  TXM  RXS t2t2  RXM  TXS t4t4 t3t3  f1 (=  MS +  SM )

April 30, 2014CLBv2, Vidyo Peter Jansweijer Nikhef Amsterdam Electronics- Technology Measurement 2 6 Round Trip Time (Rtt from WR GUI): ◦ Rtt(f1) =  +  f2 t1t1  TXM  RXS t2t2  RXM  TXS t4t4 t3t3  f2 (=  MS +  SM )

April 30, 2014CLBv2, Vidyo Peter Jansweijer Nikhef Amsterdam Electronics- Technology Measurement 3 7 Round Trip Time (Rtt from WR GUI): ◦ Rtt(f1) =  +  f1 +  f2 3 equations, 3 unknown => Now calculate: ◦ ◦ f1 ◦ f2 t1t1  TXM  RXS t2t2  RXM  TXS t4t4 t3t3  f1  f2

April 30, 2014CLBv2, Vidyo Peter Jansweijer Nikhef Amsterdam Electronics- Technology Measurement 4 8 t1t1  TXM  RXS t2t2  RXM  TXS t4t4 t3t3  f2 Knowing  f1 and  f2, => calculate SC delay

April 30, 2014CLBv2, Vidyo Peter Jansweijer Nikhef Amsterdam Electronics- Technology Measurement 5 9 Knowing  f1 and  f2, => calculate DC delay EDFA assymetry = DC - SC t1t1  TXM  RXS t2t2  RXM  TXS t4t4 t3t3  f2

April 30, 2014CLBv2, Vidyo Peter Jansweijer Nikhef Amsterdam Electronics- Technology EMScan: EHX kHz-4GHz EMC/EMI problems diagnostic tool Ordered ½ March Lead time 4-6 weeks => Expected beginning of May CLBv2 EMI 10

April 30, 2014CLBv2, Vidyo Peter Jansweijer Nikhef Amsterdam Electronics- Technology Discussion with 7 Solutions (and Athens). Pause implementation on layer-2 using unicast MAC addresses instead of multicast. An important item that popped up: ◦ A DOM that requests pause will halt the broadcast link if PAUSE is implemented on layer-2 (MAC). ◦ This is a “feature” thanks to the broadcast architecture. ◦ DOM pause request should be maskable. Pause request 11

April 30, 2014CLBv2, Vidyo Peter Jansweijer Nikhef Amsterdam Electronics- Technology Backup slides 12

April 30, 2014CLBv2, Vidyo Peter Jansweijer Nikhef Amsterdam Electronics- Technology 13 Accumulated hardware delays ◦ =  TXM +  RXS +  TXS +  RXM Accumulated fiber delays ◦ =  MS +  SM Asymmetry set to 0 for the time being… Trick: 3 Round Trip Time (Rtt from WR GUI) measurement, 2 fibers ◦ Rtt(f1) =  +  f1 ◦ Rtt(f2) =  +  f2 ◦ Rtt(f1+f2) =  +  f1 +  f2 t1t1  TXM  RXS t2t2  RXM  TXS t4t4 t3t3  MS  SM Rtt Actual asymmetry measurement using WR (measure one of the unknown calibration parameters in cooperation with Mar van der Hoek)

April 30, 2014CLBv2, Vidyo Peter Jansweijer Nikhef Amsterdam Electronics- Technology Actual asymmetry measurement using WR (measure one of the unknown calibration parameters) 14 t1t1  TXM  RXS t2t2  RXM  TXS t4t4 t3t3 KC705+SoftPLL WR master WR slave t1t1  TXM  RXS t2t2  RXM  TXS t4t4 t3t3 KC705+SoftPLL WR master WR slave Two measurements on the EDFAs in the node Get hands-on experience