techmannih/nema34-mounted-stepper-controller

A 48 V USB‑C PD 3.1 EPR NEMA‑34 stepper controller PCB combining STM32/TMC5160 control, external MOSFET motor bridges, protected power and regenerative braking, USB data, telemetry, diagnostics, status LEDs, and buzzer alarms.

Version
0.3.92
License
unset
Stars
1

docs/usb-reference-check.json

{
  "board_sha256": "4e53cf5210003b327a1b4cd49f3c5c81ff3a0f5f44277b71c384c29bc95a5cb3",
  "checker_sha256": "d39d1097e97c569909397bb226787c247091813efbe169a044fcdf09876f3e8c",
  "sample_pitch_mm": 0.05,
  "signal_via_antipad_exclusion_radius_mm": 0.45,
  "maximum_ground_stitch_distance_mm": 2,
  "nets": [
    {
      "net": "USB_DP",
      "length_mm": {
        "F.Cu": 3.741,
        "B.Cu": 14.048
      },
      "checked_samples": 271,
      "uncovered_samples": [],
      "maximum_ground_stitch_distance_mm": 1.239
    },
    {
      "net": "USB_DM",
      "length_mm": {
        "F.Cu": 6.646,
        "B.Cu": 8.054
      },
      "checked_samples": 159,
      "uncovered_samples": [],
      "maximum_ground_stitch_distance_mm": 0.593
    },
    {
      "net": "USB_DP_CONN",
      "length_mm": {
        "F.Cu": 11.532,
        "B.Cu": 11.027
      },
      "checked_samples": 204,
      "uncovered_samples": [],
      "maximum_ground_stitch_distance_mm": 1.174
    },
    {
      "net": "USB_DM_CONN",
      "length_mm": {
        "F.Cu": 14.019,
        "B.Cu": 11.167
      },
      "checked_samples": 212,
      "uncovered_samples": [],
      "maximum_ground_stitch_distance_mm": 1.919
    }
  ],
  "errors": [],
  "limitation": "Geometric return-path check for the full-speed interface; not an impedance, eye-diagram or USB compliance measurement."
}