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README.md

Marble-Mini board scripting and processes

Update I2C subsystem diagram in schematics

convert docs/marble_i2c.eps -scale 1330 marble_i2c.png before pasting into I2C_MUX.sch

QR code on silkcsreen

See instructions in qr_create.py.

The current QR code string added to the manufactured boards is https://github.com/BerkeleyLab/Marble-Mini, pointing to this documentation.

Generating artifacts for manufacturing

This includes Gerbers and BoM files. See manufacturing.sh. There are two GUI actions that must be performed by hand, before the script can take over.

Overview of the process: process

Xilinx constraint file

We have a somewhat specialized tool for creating an xdc file for this board, based on a netlist file exported from KiCad. In the KiCad (version 5.1.x) schematic GUI (eeschema):

  • use menu picks Tools / Generate Netlist File
  • OrcadPCB2 tab / Generate Netlist / Save
  • result shows up as AMC_FMC_Carrier-PcbDoc.net
  • Finally from the command line run "python3 netlist_to_xdc.py AMC_FMC_Carrier-PcbDoc.net"
  • result shows up as Marble.xdc