• WARNING: Design in progress. Source files are inconsistent.
• MicroZed processor board
• Xilinx Zynq 7010 ARM processor/fpga
• STRATUM 3E High Stability Oven Stabilized Oscillator
• GlobalTop LadyBird-1 GPS Receiver
• 18 Digit non-multiplexed time/info display
• 1U case 4 inches deep

• boot

  Files in the boot partition that the Zynq uses for bootstrap loading.

• fpga

  The FPGA code for the Zynq processor. Setup for the v1.1.0 version of the main board. The FPGA drives the custom peripherals on the main board:

  • Time Stamp Counter (TSC) running from the OCXO clock.
  • Multi digit 7-segment display.
  • OCXO control voltage DAC.
  • Phase detector between GPS PPS signal and OCXO PPS signal.
  • Time of day counters.

• freecad

  freecad 0.16 3D models for the case parts and components for kicad.

  • case

    3D model of the case, display, pcb, power supply, etc

    • assembly.fcstd

      Top level case assembly incorporating all other files in this directory

  • mod/local.pretty/packages3d

    The 3D model source for the kicad components.

  • ponoko

    File sent to ponoko to make the OXCO cover and experimental parts for the case.

• kicad

  • 2x7seg

    2 Digit 7-segment display board. Designed to be strung together to any length.

  • clock

    Tme mainboard for the clock.

  • lib

    kicad schematic library components.

  • mod/local.pretty

    Local PCB components for kicad containing parts used in 2x7seg, clock, and term. The 3d model paths are hard coded with full path to the file.

  • rj45brkout

    Break out board for the panel mount RJ45 Ethernet connector.

  • term

    The termination and connector board. Used at both ends of the display string.

  • usbabrkout

    Break out board for the panel mount USB-A connector.

  • usbbbrkout

    Break out board for the panel mount USB-B connector.

• linux

  Fork of the Xilinx linux kernel used.

• u-boot

  Fork of Xilinx u-boot used.

• scripts

  Various test scripts and programs to setup the programmed FPGA.

  • clocksource

    A simple clockdource driver to use the OCXO TSC as the timekeeping source.

  • pps

    A simple PPS driver for the OCXO PPS generator that is compatible with the ntp deamon.

Case

Main PCB

Display