ELogs/Electronics: Difference between revisions

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** Potential for USB-C PD to drop out when voltage renegotiated?
** Potential for USB-C PD to drop out when voltage renegotiated?


=== DDC Photodiode Board Rev.F ===
=== DDC Photodiode Board Rev.G ===


'''Upon completion of power distribution board'''
'''Upon completion of power distribution board'''


* Return Rev.F boards and ZMOD boards to be fixed: ✓
* Remove '''RESET''' connection from '''CC2''' pin on '''all''' DDC board USB-C connections
* Remove '''RESET''' connection from '''CC2''' pin on '''all''' DDC board USB-C connections
* Resize DDC board to accept [https://www.hamamatsu.com/jp/en/product/optical-sensors/photodiodes/si-photodiode-array/si-photodiode-array/S12362-021.html Hamamatsu S12362 16-element photodiode array] in place of [https://www.hamamatsu.com/jp/en/product/optical-sensors/photodiodes/si-photodiodes/S12915-16R.html Hamamatsu S12915-16R single photodiodes]
* Resize DDC board to accept [https://www.hamamatsu.com/jp/en/product/optical-sensors/photodiodes/si-photodiode-array/si-photodiode-array/S12362-021.html Hamamatsu S12362 16-element photodiode array] in place of [https://www.hamamatsu.com/jp/en/product/optical-sensors/photodiodes/si-photodiodes/S12915-16R.html Hamamatsu S12915-16R single photodiodes]
Line 59: Line 60:
* Kria available off-the-shelf but carrier board needed
* Kria available off-the-shelf but carrier board needed
* Imperial to design carrier board with multiple I/O for QuADProBe:
* Imperial to design carrier board with multiple I/O for QuADProBe:
** [https://imperiallondon-my.sharepoint.com/:f:/g/personal/awr01_ic_ac_uk/EgRdTysqlVBClK6T9m6lPfoBcTIIgF5YVhDBvWghjhb7Ig?e=5%3acq2U8p&at=9&xsdata=MDV8MDJ8cy5qb2xseUB1Y2wuYWMudWt8ZGZkYjUxMzAwYmNlNGQzNjc3NGYwOGRkYzg0OGJiZmV8MWZhZjg4ZmVhOTk4NGM1YjkzYzkyMTBhMTFkOWE1YzJ8MHwwfDYzODg4NjkzNjkzMDgzMjM3NXxVbmtub3dufFRXRnBiR1pzYjNkOGV5SkZiWEIwZVUxaGNHa2lPblJ5ZFdVc0lsWWlPaUl3TGpBdU1EQXdNQ0lzSWxBaU9pSlhhVzR6TWlJc0lrRk9Jam9pVFdGcGJDSXNJbGRVSWpveWZRPT18MHx8fA%3d%3d&sdata=YXh6bkdTZGRqWVhha1Q5VW1OY2pPNWMrRGIxblZjbStUcXVJVTFaTUtURT0%3d Imperial Kria DAQ for QuARC Documents]
** [https://imperiallondon-my.sharepoint.com/:p:/g/personal/awr01_ic_ac_uk/EY7mhF35mrpNpBUfO3pgTWYBPzMu3WOi93Z0Pi--k1h6TA?xsdata=MDV8MDJ8cy5qb2xseUB1Y2wuYWMudWt8ZDc4NTM3Mjk5NmNiNDkzNThhYmYwOGRkZDUyMWZkMmZ8MWZhZjg4ZmVhOTk4NGM1YjkzYzkyMTBhMTFkOWE1YzJ8MHwwfDYzODkwMTA2NDE3NTY4MjE5OXxVbmtub3dufFRXRnBiR1pzYjNkOGV5SkZiWEIwZVUxaGNHa2lPblJ5ZFdVc0lsWWlPaUl3TGpBdU1EQXdNQ0lzSWxBaU9pSlhhVzR6TWlJc0lrRk9Jam9pVFdGcGJDSXNJbGRVSWpveWZRPT18MHx8fA%3d%3d&sdata=ODVLOGhtTFplUU9xaWpFazNqZkNsekNjWXVKM3EyR0V1N2poc3lxNHdQZz0%3d Rough board layout (PPTX)]
** [https://imperiallondon-my.sharepoint.com/:p:/r/personal/awr01_ic_ac_uk/Documents/KriaDAQ/QUARC%20evolution.pptx?d=w174b6813c4c74a809a787aaea406ed28&csf=1&web=1&e=luRiE3&xsdata=MDV8MDJ8cy5qb2xseUB1Y2wuYWMudWt8ZDc4NTM3Mjk5NmNiNDkzNThhYmYwOGRkZDUyMWZkMmZ8MWZhZjg4ZmVhOTk4NGM1YjkzYzkyMTBhMTFkOWE1YzJ8MHwwfDYzODkwMTA2NDE3NTY2OTcwMXxVbmtub3dufFRXRnBiR1pzYjNkOGV5SkZiWEIwZVUxaGNHa2lPblJ5ZFdVc0lsWWlPaUl3TGpBdU1EQXdNQ0lzSWxBaU9pSlhhVzR6TWlJc0lrRk9Jam9pVFdGcGJDSXNJbGRVSWpveWZRPT18MHx8fA%3d%3d&sdata=MlBJaE9ueW4yQkdiZnNBbE8xTm9GSXBkdEpORHNyYWlPbGdRQS9SVlI1TT0%3d Evolution of QuARC Electronics (PPTX)]


==== IO specification====
==== IO specification====


* Connections for AMD Kria K26 system-on-module
* Connections for AMD Kria K26 system-on-module
* 11 “USB-C” IO connector
* 11 "USB-C" IO connector
** Vertical right-angle (“flag”) connector
** Vertical right-angle ("flag") connector
** 5x differential-pairs, at-least one connected to HP clock-capable pins
** 5x differential-pairs, at-least one connected to HP clock-capable pins
** 4x single-ended, to 3v3 HD pins
** 4x single-ended, to 3v3 HD pins
Line 74: Line 78:
** 20V power - power-enable, O/V and O/C protection
** 20V power - power-enable, O/V and O/C protection
* GbE via RJ45
* GbE via RJ45
* M.2 SATA disk
* 2 x M.2 SATA disk
** Or NVMe disk? IIRC can be made resistor-changeable to PCIe?
** M key (B key compatible - assembly-time choice of connector)
* M.2 PCIe?
** SATA SSD or 2-lane Gen-2 PCIe (requires polarity flip of RX in Kria config)
** A+E key? M key?
** 2230, 2242, 2260 & 2280 mounting holes
** 2 lane PCIe
* uSD card
* uSD card
* RPI5-compatable PCIe
* RPI5-compatable PCIe
** 16-pin, single-sided, 0.5mm pitch FFC
** 16-pin, single-sided, 0.5mm pitch FFC
** Connect to PL GTH transceivers
** Connect to PL GTH transceivers
* 4-pin fan-header?
* SFP cage & connector
** Connect to PL GTH transceivers
** Do-not-fit on initial design
* Debug header
** USB-C connector → Breakout board
** PS Switches
** PS LEDs
** PS UART


==== Power specification ====
==== Power specification ====
Line 90: Line 100:
** Requires negotiation
** Requires negotiation
* Barrel-jack fall-back power
* Barrel-jack fall-back power
* Hold-up caps?
* Hold-up caps
* 2-pin fan-header


==== Mechanical specification ====
==== Mechanical specification ====

Latest revision as of 16:56, 11 August 2025

Electronic Log for Electronics Development

Oxford

Pete Hastings

Mark Jones

Power supply board

Ready for experimental visit to Trento, 28th September 2025

  • Power distribution board required for QuARC.
  • Provide power for Raspberry Pi and DDC boards from single DC input:
    • 5V/5A for Raspberry Pi via USB-C
    • >7.5V (5A?) for DDC board daisy chain via 2.5mm barrel
  • Single USB-C PD input: 20V/5A
    • Needs USB-C PD voltage negotiation chip
  • Fallback option with 20V DC 2.5mm barrel jack input
  • LEDs to indicate each voltage is provided correctly:
    • 20V input
    • 5V to Raspberry Pi
    • >7.5V to DDC boards
  • Should be able to switch off LEDs
  • Necessary to switch between input power supplies?
  • Ensure both power outputs stable: no drop-outs!
    • Potential for USB-C PD to drop out when voltage renegotiated?

DDC Photodiode Board Rev.G

Upon completion of power distribution board

Scintillating Fibre Profile Monitor Front-end Boards

Upon completion of Rev.F board

  • Integration of scintillating fibre profile monitor based on design from Blake Leverington, University of Heidelberg
  • Hamamatsu S17285 photodiode arrays to couple to scintillating fibres
  • Interface board needed between USB-C connection from FPGA and photodiode arrays
  • Acquire data; distribute timing signals

Imperial

Andy Rose

Duncan Parker

QuADProBe FPGA Upgrade

IO specification

  • Connections for AMD Kria K26 system-on-module
  • 11 "USB-C" IO connector
    • Vertical right-angle ("flag") connector
    • 5x differential-pairs, at-least one connected to HP clock-capable pins
    • 4x single-ended, to 3v3 HD pins
    • 20V power - power-enable, O/V and O/C protection
  • 1 “USB-C” IO connector
    • Vertical right-angle (“flag”) connector
    • 3x differential-pairs, connected to HP global-clock pins
    • 4x single-ended, to 3v3 HD pins
    • 20V power - power-enable, O/V and O/C protection
  • GbE via RJ45
  • 2 x M.2 SATA disk
    • M key (B key compatible - assembly-time choice of connector)
    • SATA SSD or 2-lane Gen-2 PCIe (requires polarity flip of RX in Kria config)
    • 2230, 2242, 2260 & 2280 mounting holes
  • uSD card
  • RPI5-compatable PCIe
    • 16-pin, single-sided, 0.5mm pitch FFC
    • Connect to PL GTH transceivers
  • SFP cage & connector
    • Connect to PL GTH transceivers
    • Do-not-fit on initial design
  • Debug header
    • USB-C connector → Breakout board
    • PS Switches
    • PS LEDs
    • PS UART

Power specification

  • USB-C power connection – 5A @ 20V
    • Requires negotiation
  • Barrel-jack fall-back power
  • Hold-up caps
  • 2-pin fan-header

Mechanical specification

  • As low-profile as possible
  • Not overly constrained in lateral dimensions – as compact as reasonably possible
  • Mounting holes
  • Heatsink?
  • All connector on one edge?
    • Except RPI PCIe (and fan-header if used)

To-do

  • Swap USBs to flag-type
  • Make power switches disabled by default (pull-up on En# lines)
  • I2C for power negotiator
    • 20V USB-C PD/DC power input
    • 11 x USB-C sockets connected to PL for detector interface
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