shibosoftwaredev/f1c100s-linux-nema17-stepper-controller

A four-layer NEMA 17 motor-controller PCB combining an Allwinner F1C100S Linux computer, USB‑PD/buck power system, W5500 Ethernet, STM32 real-time motion control, DRV8825 stepper driver, protection/temperature/current telemetry, USB interfaces, and local LED/buzzer diagnostics.

Version
0.4.56
License
unset
Stars
0

schematic-text-placements.json

{
  "Unused display interface":{"x":-10.5,"y":5.335},
  "SDRAM reference bias":{"x":2.57,"y":-1.5},
  "Defined SVREF levels":{"x":2.47,"y":-1.825},
  "Mode straps / references":{"x":-5.3,"y":-3.3},
  "PMODE[2:0] high: automatic negotiation":{"x":-5.3,"y":-3.625},
  "Crystal between its load capacitors":{"x":0.75,"y":-0.435},
  "Associated with the W5500 supply pins":{"x":-11.25,"y":-7.255},
  "SWD pads; ROM UART via Linux":{"x":-11.25,"y":-2.165},
  "DRV8825 bridge":{"x":-5.1,"y":2.75},
  "STEP/DIR and enable: 07":{"x":-5.1,"y":2.425},
  "MCU DAC; R_ISET_210 stays DNP":{"x":-13.5,"y":-2.375},
  "Software current limit":{"x":-13.5,"y":-2.05},
  "Board temperature":{"x":3.4,"y":-2.5},
  "Local board heat":{"x":3.4,"y":-2.825},
  "Charge pump":{"x":-13,"y":0.7},
  "Bridge supply support":{"x":-13,"y":0.375},
  "Addressable RGB status LED":{"x":-11.25,"y":6.1},
  "MCU → AHCT level shift → series resistor → LED":{"x":-11.25,"y":5.775},
  "Analog references":{"x":-13.5,"y":-2.1},
  "VRA / video bypass":{"x":-13.5,"y":-2.425},
  "Startup pull-ups":{"x":-14,"y":-4.1},
  "Logic bias":{"x":-14,"y":-4.425}
}