Add KiCad 9 schematic, project libraries and datasheetsHEADmaster

Schematic (kicad/), one sheet per function as on ULX3S:
  - power: TLV62569 bucks for +1V1 / +3V3, AP2112K LDO for +2V5
  - usb: USB-C with PTC and TVS, CH347F for JTAG and UART
  - fpga_power, fpga_config, fpga_banks_01/23/67: ECP5 LFE5U-25F caBGA256
    (pin compatible with the 45F), quad SPI flash, 50 MHz CLOCK_50,
    ball assignment as in PINPLAN.md
  - ethernet: RTL8211F gigabit PHY, HR911130A RJ45, shield via 1M || 1nF 2kV
  - sdram: 32 MB W9825G6KH-6
  - hdmi: TMDS from the FPGA (LVCMOS33D), AC coupled, ESD protected
  - user_io: SW, KEY (debounced), LEDR, LEDG, HEX0-HEX3 with DE1 names
  - gpio: two DE1 compatible 2x20 headers (THDB-ADA on GPIO_0),
    Pmod A/B, ESD arrays
  - testpoints: bring-up pads, M3 mounting holes

All parts have LCSC numbers, MPN and manufacturer for JLCPCB assembly;
footprints are cross-checked against the EasyEDA data.

Libraries: ECP5 symbols generated from the Lattice pinout CSVs (kipart),
CH347F, RTL8211F, SM410561N symbols, HR911130A symbol and footprint from
KiCad library merge requests, generator scripts in lib/tools/.

Datasheets of all parts except resistors and capacitors in datasheets/
(manufacturer copyright, not covered by the project licenses).

10 files changed, 3380 insertions, 0 deletions

diff --git a/kicad/lib/tools/RJ45_Hanrun_HR911130A_Horizontal.kicad_sym b/kicad/lib/tools/RJ45_Hanrun_HR911130A_Horizontal.kicad_sym
new file mode 100644
index 0000000..4d25812
--- /dev/null
+++ b/kicad/lib/tools/RJ45_Hanrun_HR911130A_Horizontal.kicad_sym
@@ -0,0 +1,2875 @@
+(kicad_symbol_lib
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+			(hide yes)
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+					(font
+						(size 0.508 0.508)
+					)
+				)
+			)
+			(text "75"
+				(at -1.524 0.762 0)
+				(effects
+					(font
+						(size 0.508 0.508)
+					)
+				)
+			)
+			(text "75"
+				(at -1.524 -6.858 0)
+				(effects
+					(font
+						(size 0.508 0.508)
+					)
+				)
+			)
+			(text "75"
+				(at -1.524 -14.478 0)
+				(effects
+					(font
+						(size 0.508 0.508)
+					)
+				)
+			)
+		)
+		(symbol "RJ45_Hanrun_HR911130A_Horizontal_1_1"
+			(text "1000pF 2kV"
+				(at -3.81 -16.256 0)
+				(effects
+					(font
+						(size 0.635 0.635)
+					)
+					(justify left)
+				)
+			)
+			(text "Y"
+				(at 2.54 15.24 0)
+				(effects
+					(font
+						(size 1.27 1.27)
+					)
+				)
+			)
+			(pin passive line
+				(at 12.7 15.24 180)
+				(length 2.54)
+				(name "CT"
+					(effects
+						(font
+							(size 1.27 1.27)
+						)
+					)
+				)
+				(number "1"
+					(effects
+						(font
+							(size 1.27 1.27)
+						)
+					)
+				)
+			)
+			(pin passive line
+				(at 12.7 12.7 180)
+				(length 2.54)
+				(name "MDI0+"
+					(effects
+						(font
+							(size 1.27 1.27)
+						)
+					)
+				)
+				(number "2"
+					(effects
+						(font
+							(size 1.27 1.27)
+						)
+					)
+				)
+			)
+			(pin passive line
+				(at 12.7 7.62 180)
+				(length 2.54)
+				(name "MDI0-"
+					(effects
+						(font
+							(size 1.27 1.27)
+						)
+					)
+				)
+				(number "3"
+					(effects
+						(font
+							(size 1.27 1.27)
+						)
+					)
+				)
+			)
+			(pin passive line
+				(at 12.7 5.08 180)
+				(length 2.54)
+				(name "MDI1+"
+					(effects
+						(font
+							(size 1.27 1.27)
+						)
+					)
+				)
+				(number "4"
+					(effects
+						(font
+							(size 1.27 1.27)
+						)
+					)
+				)
+			)
+			(pin passive line
+				(at 12.7 -2.54 180)
+				(length 2.54)
+				(name "MDI2+"
+					(effects
+						(font
+							(size 1.27 1.27)
+						)
+					)
+				)
+				(number "5"
+					(effects
+						(font
+							(size 1.27 1.27)
+						)
+					)
+				)
+			)
+			(pin passive line
+				(at 12.7 -7.62 180)
+				(length 2.54)
+				(name "MDI2-"
+					(effects
+						(font
+							(size 1.27 1.27)
+						)
+					)
+				)
+				(number "6"
+					(effects
+						(font
+							(size 1.27 1.27)
+						)
+					)
+				)
+			)
+			(pin passive line
+				(at 12.7 0 180)
+				(length 2.54)
+				(name "MDI1-"
+					(effects
+						(font
+							(size 1.27 1.27)
+						)
+					)
+				)
+				(number "7"
+					(effects
+						(font
+							(size 1.27 1.27)
+						)
+					)
+				)
+			)
+			(pin passive line
+				(at 12.7 -10.16 180)
+				(length 2.54)
+				(name "MDI3+"
+					(effects
+						(font
+							(size 1.27 1.27)
+						)
+					)
+				)
+				(number "8"
+					(effects
+						(font
+							(size 1.27 1.27)
+						)
+					)
+				)
+			)
+			(pin passive line
+				(at 12.7 -15.24 180)
+				(length 2.54)
+				(name "MDI3-"
+					(effects
+						(font
+							(size 1.27 1.27)
+						)
+					)
+				)
+				(number "9"
+					(effects
+						(font
+							(size 1.27 1.27)
+						)
+					)
+				)
+			)
+			(pin passive line
+				(at -5.08 20.32 270)
+				(length 2.54)
+				(name "LGA"
+					(effects
+						(font
+							(size 1.27 1.27)
+						)
+					)
+				)
+				(number "11"
+					(effects
+						(font
+							(size 1.27 1.27)
+						)
+					)
+				)
+			)
+			(pin passive line
+				(at -2.54 20.32 270)
+				(length 2.54)
+				(name "LGK"
+					(effects
+						(font
+							(size 1.27 1.27)
+						)
+					)
+				)
+				(number "12"
+					(effects
+						(font
+							(size 1.27 1.27)
+						)
+					)
+				)
+			)
+			(pin passive line
+				(at 5.08 20.32 270)
+				(length 2.54)
+				(name "LYK"
+					(effects
+						(font
+							(size 1.27 1.27)
+						)
+					)
+				)
+				(number "13"
+					(effects
+						(font
+							(size 1.27 1.27)
+						)
+					)
+				)
+			)
+			(pin passive line
+				(at 2.54 20.32 270)
+				(length 2.54)
+				(name "LYA"
+					(effects
+						(font
+							(size 1.27 1.27)
+						)
+					)
+				)
+				(number "14"
+					(effects
+						(font
+							(size 1.27 1.27)
+						)
+					)
+				)
+			)
+			(pin passive line
+				(at 5.08 -20.32 90)
+				(length 2.54)
+				(name "SH"
+					(effects
+						(font
+							(size 1.27 1.27)
+						)
+					)
+				)
+				(number "SH"
+					(effects
+						(font
+							(size 1.27 1.27)
+						)
+					)
+				)
+			)
+		)
+		(embedded_fonts no)
+	)
+)
diff --git a/kicad/lib/tools/ch347f.csv b/kicad/lib/tools/ch347f.csv
new file mode 100644
index 0000000..ad27b48
--- /dev/null
+++ b/kicad/lib/tools/ch347f.csv
@@ -0,0 +1,37 @@
+CH347F
+Footprint:,Package_DFN_QFN:QFN-28-1EP_4x4mm_P0.4mm_EP2.4x2.4mm_ThermalVias
+Datasheet:,https://www.wch-ic.com/downloads/CH347DS1_PDF.html
+Description:,"High-speed USB 2.0 to dual UART, I2C, SPI, JTAG, SWD converter, VIO 1.8-3.3V, QFN-28 (datasheet pin 0 = EP = pad 29)"
+Source*:,"WCH CH347 datasheet V1.4 (CH347DS1): CH347F pins tables 4-1 to 4-7, pin names from the pinout figure (page 4); EP = datasheet pin 0 = pad 29"
+Keywords:,USB UART JTAG SPI I2C SWD converter WCH
+Filters:,QFN*28*1EP*4x4mm*P0.4mm*
+pin,name,type,side
+21,VCC,power_in,top
+6,VIO,power_in,top
+3,~{RST},input,left
+1,XI,input,left
+2,XO,output,left
+28,UD+,bidirectional,left
+27,UD-,bidirectional,left
+8,ACT/SRST,output,left
+20,GND,power_in,bottom
+29,GND,passive,bottom
+19,TXD0,output,right
+22,RXD0,input,right
+18,RTS0/GPIO1,bidirectional,right
+17,CTS0/GPIO0,bidirectional,right
+10,DTR0/TNOW0/GPIO2,bidirectional,right
+4,TXD1,output,right
+5,RXD1,input,right
+11,CTS1/SCL,bidirectional,right
+12,RTS1/SDA,bidirectional,right
+7,DTR1/TNOW1/SCS1,bidirectional,right
+14,SCK,output,right
+13,SCS0,output,right
+16,MOSI,output,right
+15,MISO,input,right
+23,TCK/SWDCLK/GPIO4,output,right
+26,TMS/SWDIO/GPIO7,bidirectional,right
+25,TDI/GPIO6,output,right
+24,TDO/GPIO5,input,right
+9,TRST/GPIO3,bidirectional,right
diff --git a/kicad/lib/tools/derive_symbol.py b/kicad/lib/tools/derive_symbol.py
new file mode 100755
index 0000000..1278128
--- /dev/null
+++ b/kicad/lib/tools/derive_symbol.py
@@ -0,0 +1,74 @@
+#!/usr/bin/env python3
+# SPDX-License-Identifier: GPL-3.0-or-later
+"""Add a pin-compatible variant of a symbol to a KiCad symbol library.
+
+The variant keeps the geometry of the base symbol (every pin number at the
+same position), so "Change symbol" in the schematic swaps the two without
+breaking wires. Pin names and the description come from the variant's kipart
+CSV (as written by lattice2kipart.py).
+
+  derive_symbol.py LIB.kicad_sym BASE_NAME VARIANT.csv > OUT.kicad_sym
+"""
+import csv
+import re
+import sys
+
+
+def match_paren(t, i):
+    depth = 0
+    j = i
+    while True:
+        c = t[j]
+        if c == '"':
+            j += 1
+            while t[j] != '"':
+                j += 2 if t[j] == "\\" else 1
+        elif c == "(":
+            depth += 1
+        elif c == ")":
+            depth -= 1
+            if depth == 0:
+                return j + 1
+        j += 1
+
+
+lib_path, base, var_csv = sys.argv[1:4]
+lib = open(lib_path).read()
+
+rows = list(csv.reader(open(var_csv, newline="")))
+variant = rows[0][0]
+props = {r[0][:-1].replace("*", ""): r[1] for r in rows[1:] if r and r[0].endswith(":")}
+hdr = next(i for i, r in enumerate(rows) if r and r[0] == "pin")
+cols = rows[hdr]
+pins = {r[cols.index("pin")]: (r[cols.index("name")], r[cols.index("type")])
+        for r in rows[hdr + 1:] if r and r[0]}
+
+m = re.search(r'\(symbol "' + re.escape(base) + r'"', lib)
+start = m.start()
+block = lib[start:match_paren(lib, start)]
+base_types = {n: t for t, n in re.findall(r'\(pin (\w+) \w+ .*?\(number "([^"]+)"', block, re.S)}
+
+new = block.replace(f'(symbol "{base}"', f'(symbol "{variant}"', 1)
+new = new.replace(f'(symbol "{base}_', f'(symbol "{variant}_')
+new = re.sub(r'(\(property "Value" )"[^"]*"', rf'\1"{variant}"', new, count=1)
+for key in ("Description", "Source"):
+    if key in props:
+        new = re.sub(r'(\(property "' + key + r'" )"[^"]*"', lambda mm: f'{mm.group(1)}"{props[key]}"',
+                     new, count=1)
+
+
+def rename(mm):
+    num = mm.group(3)
+    name, typ = pins[num]
+    if typ != base_types[num] and not (base_types[num] == "passive"):   # stacked pins are passive
+        sys.exit(f"pin {num}: type {typ} differs from {base_types[num]}")
+    return f'{mm.group(1)}(name "{name}"{mm.group(2)}(number "{num}"'
+
+
+new, n = re.subn(r'(\(pin [^\n]*\n(?:(?!\(pin ).)*?)\(name "[^"]*"(.*?)\(number "([^"]+)"',
+                 rename, new, flags=re.S)
+if n != len(pins):
+    sys.exit(f"renamed {n} pins, variant has {len(pins)}")
+
+end = match_paren(lib, start)
+sys.stdout.write(lib[:end] + "\n  " + new + lib[end:])
diff --git a/kicad/lib/tools/kicad_sym_grid.py b/kicad/lib/tools/kicad_sym_grid.py
new file mode 100755
index 0000000..de52a8e
--- /dev/null
+++ b/kicad/lib/tools/kicad_sym_grid.py
@@ -0,0 +1,44 @@
+#!/usr/bin/env python3
+# SPDX-License-Identifier: GPL-3.0-or-later
+"""Snap kipart symbol pins onto the 2.54 mm grid.
+
+kipart centres each pin column, which puts columns with an even pin count
+(and box edges) on a 1.27 mm half grid; it also writes float noise such as
+3.55e-15. Pins are moved by half a grid step along their column, and pins
+whose end point is off grid are lengthened so the symbol body stays put.
+
+  kicad_sym_grid.py IN.kicad_sym > OUT.kicad_sym
+"""
+import re
+import sys
+
+
+def on_grid(v):
+    return abs(v / 2.54 - round(v / 2.54)) < 0.004
+
+
+def fix(m):
+    kind, x, y, a = m.group(1), float(m.group(2)), float(m.group(3)), m.group(4)
+    length = float(m.group(5))
+    vertical = a in ("90", "270")
+    if vertical and not on_grid(x):
+        x += 1.27
+    if not vertical and not on_grid(y):
+        y += 1.27
+    if vertical and not on_grid(y):
+        y += 1.27 if y > 0 else -1.27
+        length += 1.27
+    if not vertical and not on_grid(x):
+        x += 1.27 if x > 0 else -1.27
+        length += 1.27
+
+    def f(v):
+        v = round(v, 4)
+        return "0" if v == 0 else f"{v:g}"
+    return f"(pin {kind} (at {f(x)} {f(y)} {a}) (length {f(length)})"
+
+
+text = open(sys.argv[1]).read()
+text = re.sub(r"\(pin ([\w ]+?)\s*\(at ([-\d.e+]+) ([-\d.e+]+) (\d+)\)\s*\(length ([\d.]+)\)",
+              fix, text)
+sys.stdout.write(text)
diff --git a/kicad/lib/tools/lattice2kipart.py b/kicad/lib/tools/lattice2kipart.py
new file mode 100755
index 0000000..3e10074
--- /dev/null
+++ b/kicad/lib/tools/lattice2kipart.py
@@ -0,0 +1,107 @@
+#!/usr/bin/env python3
+# SPDX-License-Identifier: GPL-3.0-or-later
+"""Convert a Lattice ECP5 pinout CSV into a kipart input CSV.
+
+Usage:
+  lattice2kipart.py PINOUT.csv PACKAGE PARTNAME FOOTPRINT LUTS > part.csv
+  kipart -b -o out.kicad_sym part.csv
+
+One unit per I/O bank, one unit for configuration/JTAG, one unit for
+core/aux power and ground. Dual functions are appended to the pin name
+(e.g. PL32A/PCLKT7_1) so clock and config pins are visible in the schematic.
+"""
+import csv
+import os
+import re
+import sys
+
+IO_RE = re.compile(r"P[TBLR]\d+[A-D]$")
+
+# Dedicated pins: name -> (kicad name, type, side, unit)
+DEDICATED = {
+    "PROGRAMN": ("~{PROGRAMN}", "input", "left", "Config"),
+    "INITN": ("~{INITN}", "open_collector", "left", "Config"),
+    "DONE": ("DONE", "open_collector", "left", "Config"),
+    "CCLK": ("CCLK", "bidirectional", "left", "Config"),
+    "CFG_0": ("CFG_0", "input", "left", "Config"),
+    "CFG_1": ("CFG_1", "input", "left", "Config"),
+    "CFG_2": ("CFG_2", "input", "left", "Config"),
+    "TCK": ("TCK", "input", "right", "Config"),
+    "TMS": ("TMS", "input", "right", "Config"),
+    "TDI": ("TDI", "input", "right", "Config"),
+    "TDO": ("TDO", "output", "right", "Config"),
+    "VCC": ("VCC", "power_in", "top", "Power"),
+    "VCCAUX": ("VCCAUX", "power_in", "top", "Power"),
+    "GND": ("GND", "power_in", "bottom", "Power"),
+}
+
+
+def main():
+    src, package, part, footprint, luts = sys.argv[1:6]
+    rows = [r for r in csv.reader(open(src, newline=""))
+            if r and any(c.strip() for c in r) and not r[0].startswith("#")]
+    header = rows[0]
+    pins = [dict(zip(header, r)) for r in rows[1:]]
+    if package not in header:
+        sys.exit(f"package {package} not in {header}")
+    pins = [p for p in pins if p[package].strip() not in ("", "-")]
+
+    # Split each bank's IOs: first half left side, second half right side.
+    banks = {}
+    for p in pins:
+        if IO_RE.match(p["Pin/Ball Function"]):
+            banks.setdefault(p["Bank"], []).append(p)
+    side_of = {}
+    for b, lst in banks.items():
+        half = (len(lst) + 1) // 2
+        for i, p in enumerate(lst):
+            side_of[id(p)] = "left" if i < half else "right"
+
+    out = csv.writer(sys.stdout)
+    out.writerow([part])
+    out.writerow(["Footprint:", footprint])
+    out.writerow(["Datasheet:",
+                  "https://www.latticesemi.com/view_document?document_id=50461"])
+    out.writerow(["Description:",
+                  f"ECP5 FPGA, {luts} LUTs, 1.1V core, {package}"])
+    out.writerow(["Source*:", f"Lattice pinout CSV {os.path.basename(src)}, package {package}"])
+    out.writerow(["Keywords:", "FPGA programmable logic Lattice ECP5"])
+    out.writerow(["Filters:", "BGA*256*14.0x14.0mm*P0.8mm*"])
+    out.writerow(["pin", "name", "type", "side", "unit"])
+
+    rows_out = []
+    seen = set()
+    for p in pins:
+        ball = p[package].strip()
+        if ball in seen:
+            sys.exit(f"duplicate ball {ball}")
+        seen.add(ball)
+        func = p["Pin/Ball Function"].strip()
+        dual = p["Dual Function"].strip()
+        bank = p["Bank"].strip()
+        if IO_RE.match(func):
+            name = func if dual in ("", "-") else f"{func}/{dual}"
+            rows_out.append([ball, name, "bidirectional", side_of[id(p)],
+                             f"Bank{bank}"])
+        elif func.startswith("VCCIO"):
+            rows_out.append([ball, func, "power_in", "top", f"Bank{bank}"])
+        elif func in DEDICATED:
+            name, typ, side, unit = DEDICATED[func]
+            if func == "CCLK" and dual not in ("", "-"):
+                name = f"CCLK/{dual}"
+            rows_out.append([ball, name, typ, side, unit])
+        else:
+            sys.exit(f"unhandled pin {func} ({ball})")
+
+    # kipart numbers units in order of first appearance: banks ascending,
+    # then Config, then Power. Pin order inside a unit stays as in the CSV.
+    def unit_key(unit):
+        if unit.startswith("Bank"):
+            return (0, int(unit[4:]))
+        return (1, ["Config", "Power"].index(unit))
+    rows_out.sort(key=lambda r: unit_key(r[4]))
+    out.writerows(rows_out)
+
+
+if __name__ == "__main__":
+    main()
diff --git a/kicad/lib/tools/make_7seg_fp.py b/kicad/lib/tools/make_7seg_fp.py
new file mode 100755
index 0000000..197bdc1
--- /dev/null
+++ b/kicad/lib/tools/make_7seg_fp.py
@@ -0,0 +1,77 @@
+#!/usr/bin/env python3
+# SPDX-License-Identifier: GPL-3.0-or-later
+"""Write the footprint for the ARKLED SM410561N 0.56" single digit display.
+
+Dimensions from the ARKLED specification, page 4/4: body 12.60 x 19.0 mm,
+2 x 5 pins on a 2.54 mm pitch, rows 15.24 mm apart, pin diameter 0.51 mm,
+pin 1 bottom left (digit upright), numbering counter-clockwise.
+Footprint origin = pin 1.
+
+  make_7seg_fp.py OUT.kicad_mod
+"""
+import sys
+import uuid
+
+NS = uuid.UUID("2f1b6f2e-9a77-4b8e-8f0e-5a3c7e1d2b44")
+OUT = sys.argv[1]
+W, H, PITCH, ROW = 12.60, 19.0, 2.54, 15.24
+CX, CY = 2 * PITCH, -ROW / 2          # body centre relative to pin 1
+
+
+def u(*a):
+    return str(uuid.uuid5(NS, "/".join(map(str, a))))
+
+
+def f(v):
+    v = round(v, 4)
+    return "0" if v == 0 else f"{v:g}"
+
+
+o = ['(footprint "7SegmentLED_0.56in_1Digit_SM410561N"\n\t(version 20241229)\n\t(generator "eboard")\n'
+     '\t(generator_version "9.0")\n\t(layer "F.Cu")\n'
+     '\t(descr "0.56 inch single digit 7-segment display, ARKLED SM410561N, '
+     'https://www.lcsc.com/product-detail/C141368.html")\n'
+     '\t(tags "7 segment LED display 0.56 inch")\n']
+
+
+def prop(name, val, x, y, layer, hide=False):
+    o.append(f'\t(property "{name}" "{val}"\n\t\t(at {f(x)} {f(y)} 0)\n\t\t(layer "{layer}")\n'
+             + ('\t\t(hide yes)\n' if hide else '')
+             + f'\t\t(uuid "{u("p", name)}")\n\t\t(effects\n\t\t\t(font\n\t\t\t\t(size 1 1)\n'
+               '\t\t\t\t(thickness 0.15)\n\t\t\t)\n\t\t)\n\t)\n')
+
+
+def line(x1, y1, x2, y2, layer, w):
+    o.append(f'\t(fp_line\n\t\t(start {f(x1)} {f(y1)})\n\t\t(end {f(x2)} {f(y2)})\n\t\t(stroke\n'
+             f'\t\t\t(width {w})\n\t\t\t(type solid)\n\t\t)\n\t\t(layer "{layer}")\n'
+             f'\t\t(uuid "{u("l", layer, x1, y1, x2, y2)}")\n\t)\n')
+
+
+def rect(x1, y1, x2, y2, layer, w):
+    for a, b in (((x1, y1), (x2, y1)), ((x2, y1), (x2, y2)), ((x2, y2), (x1, y2)), ((x1, y2), (x1, y1))):
+        line(*a, *b, layer, w)
+
+
+x1, x2, y1, y2 = CX - W / 2, CX + W / 2, CY - H / 2, CY + H / 2
+prop("Reference", "REF**", CX, y1 - 1.5, "F.SilkS")
+prop("Value", "SM410561N", CX, y2 + 1.5, "F.Fab")
+prop("Datasheet", "https://www.lcsc.com/product-detail/C141368.html", 0, 0, "F.Fab", hide=True)
+prop("Description", "0.56 inch single digit 7-segment display", 0, 0, "F.Fab", hide=True)
+o.append('\t(attr through_hole)\n')
+rect(x1, y1, x2, y2, "F.Fab", 0.1)
+rect(x1 - 0.12, y1 - 0.12, x2 + 0.12, y2 + 0.12, "F.SilkS", 0.12)
+rect(x1 - 0.5, y1 - 0.5, x2 + 0.5, y2 + 0.5, "F.CrtYd", 0.05)
+line(x1 - 0.5, 1.2, x1 - 0.5, -1.2, "F.SilkS", 0.12)          # pin 1 marker
+o.append(f'\t(fp_text user "${{REFERENCE}}"\n\t\t(at {f(CX)} {f(CY)} 0)\n\t\t(layer "F.Fab")\n'
+         f'\t\t(uuid "{u("t")}")\n\t\t(effects\n\t\t\t(font\n\t\t\t\t(size 1 1)\n'
+         '\t\t\t\t(thickness 0.15)\n\t\t\t)\n\t\t)\n\t)\n')
+pads = [(n, (n - 1) * PITCH, 0.0) for n in range(1, 6)] + \
+       [(n, (10 - n) * PITCH, -ROW) for n in range(6, 11)]
+for n, x, y in pads:
+    shape = "rect" if n == 1 else "circle"
+    o.append(f'\t(pad "{n}" thru_hole {shape}\n\t\t(at {f(x)} {f(y)})\n\t\t(size 1.5 1.5)\n'
+             f'\t\t(drill 0.8)\n\t\t(layers "*.Cu" "*.Mask")\n\t\t(remove_unused_layers no)\n'
+             f'\t\t(uuid "{u("pad", n)}")\n\t)\n')
+o.append('\t(embedded_fonts no)\n)\n')
+open(OUT, "w").write("".join(o))
+print("wrote", OUT)
diff --git a/kicad/lib/tools/make_eboard_lib.sh b/kicad/lib/tools/make_eboard_lib.sh
new file mode 100755
index 0000000..1399513
--- /dev/null
+++ b/kicad/lib/tools/make_eboard_lib.sh
@@ -0,0 +1,62 @@
+#!/bin/sh
+# SPDX-License-Identifier: GPL-3.0-or-later
+# Build kicad/lib/eboard.kicad_sym:
+#  - symbols generated by kipart from the CSV files in this folder,
+#  - plus ready-made symbols from the *.kicad_sym files in this folder
+#    (e.g. the HR911130A symbol from a KiCad library merge request).
+#
+#   kicad/lib/tools/make_eboard_lib.sh
+#
+# Needs kipart (pipx install kipart).
+set -eu
+here=$(cd "$(dirname "$0")" && pwd)
+command -v kipart >/dev/null 2>&1 || {
+    echo "kipart not found; install it with: pipx install kipart" >&2
+    exit 1
+}
+out=$here/../eboard.kicad_sym
+tmp=$(mktemp -d)
+trap 'rm -rf "$tmp"' EXIT
+
+kipart -b --bundle-style none -w -o "$tmp/raw.kicad_sym" \
+    "$here"/ch347f.csv "$here"/rtl8211f.csv "$here"/sm410561n.csv
+python3 -I "$here/kicad_sym_grid.py" "$tmp/raw.kicad_sym" > "$tmp/grid.kicad_sym"
+
+# append the top-level symbols of the extra libraries
+python3 -I - "$tmp/grid.kicad_sym" "$here"/*.kicad_sym > "$out" <<'EOF'
+import re, sys
+
+
+def match_paren(t, i):
+    depth, j = 0, i
+    while True:
+        c = t[j]
+        if c == '"':
+            j += 1
+            while t[j] != '"':
+                j += 2 if t[j] == "\\" else 1
+        elif c == "(":
+            depth += 1
+        elif c == ")":
+            depth -= 1
+            if depth == 0:
+                return j + 1
+        j += 1
+
+
+base = open(sys.argv[1]).read()
+blocks = []
+for path in sys.argv[2:]:
+    t = open(path).read()
+    i = t.index("(", 1)
+    while True:
+        m = re.compile(r'\(symbol "').search(t, i)
+        if not m:
+            break
+        e = match_paren(t, m.start())
+        blocks.append(t[m.start():e])
+        i = e
+end = base.rstrip().rfind(")")
+sys.stdout.write(base[:end] + "".join("  " + b + "\n" for b in blocks) + ")\n")
+EOF
+echo "wrote $out"
diff --git a/kicad/lib/tools/make_ecp5_symbol.sh b/kicad/lib/tools/make_ecp5_symbol.sh
new file mode 100755
index 0000000..2495590
--- /dev/null
+++ b/kicad/lib/tools/make_ecp5_symbol.sh
@@ -0,0 +1,37 @@
+#!/bin/sh
+# SPDX-License-Identifier: GPL-3.0-or-later
+# Generate the LFE5U-25F and LFE5U-45F caBGA256 symbols from the Lattice
+# pinout CSVs (FPGA-SC-02033 ECP5U-25, FPGA-SC-02034 ECP5U-45).
+#
+#   kicad/lib/tools/make_ecp5_symbol.sh
+#
+# Needs kipart (pipx install kipart).
+#
+# Both parts have the same balls, banks and differential pairs in caBGA256;
+# only the pad names and the upper-corner PLL inputs (45F only) differ.
+# Writes kicad/lib/eboard_fpga.kicad_sym (overwritten).
+set -eu
+here=$(cd "$(dirname "$0")" && pwd)
+ds=$here/../../../datasheets
+command -v kipart >/dev/null 2>&1 || {
+    echo "kipart not found; install it with: pipx install kipart" >&2
+    exit 1
+}
+fp=Package_BGA:BGA-256_14.0x14.0mm_Layout16x16_P0.8mm_Ball0.45mm_Pad0.32mm_NSMD
+out=$here/../eboard_fpga.kicad_sym
+tmp=$(mktemp -d)
+trap 'rm -rf "$tmp"' EXIT
+
+python3 -I "$here/lattice2kipart.py" "$ds/FPGA-SC-02033-2-0-ECP5U-25-Pinout.csv" \
+    CABGA256 LFE5U-25F-xBG256x "$fp" 24K > "$tmp/lfe5u25.csv"
+python3 -I "$here/lattice2kipart.py" "$ds/FPGA-SC-02034-3-0-ECP5U-45-Pinout.csv" \
+    CABGA256 LFE5U-45F-xBG256x "$fp" 44K > "$tmp/lfe5u45.csv"
+# kipart names the units after the CSV unit column (Bank0 ... Bank8, Config, Power).
+kipart -b --bundle-style none -w -o "$tmp/raw.kicad_sym" "$tmp/lfe5u45.csv"
+# put all pin ends on the 2.54 mm grid
+python3 -I "$here/kicad_sym_grid.py" "$tmp/raw.kicad_sym" > "$tmp/lfe5u45.kicad_sym"
+# 25F: same geometry as the 45F symbol, pin names from the 25F pinout,
+# so "Change symbol" swaps the two parts without touching any wire.
+python3 -I "$here/derive_symbol.py" "$tmp/lfe5u45.kicad_sym" LFE5U-45F-xBG256x \
+    "$tmp/lfe5u25.csv" > "$out"
+echo "wrote $out"
diff --git a/kicad/lib/tools/rtl8211f.csv b/kicad/lib/tools/rtl8211f.csv
new file mode 100644
index 0000000..f25b3c3
--- /dev/null
+++ b/kicad/lib/tools/rtl8211f.csv
@@ -0,0 +1,49 @@
+RTL8211F-CG
+Footprint:,Package_DFN_QFN:QFN-40-1EP_5x5mm_P0.4mm_EP3.6x3.6mm_ThermalVias
+Datasheet:,https://www.realtek.com/Product/Index?id=3846
+Description:,"Integrated 10/100/1000M Ethernet transceiver, RGMII, internal 1.0V switching regulator, QFN-40 5x5mm"
+Source*:,"Realtek RTL8211F(I)-CG/RTL8211FD(I)-CG datasheet Rev. 1.4: pins section 6 tables 1-9, strap functions table 10; EP = pad 41 (GND)"
+Keywords:,Ethernet PHY gigabit RGMII Realtek
+Filters:,QFN*40*1EP*5x5mm*P0.4mm*
+pin,name,type,side
+20,TXC,input,left
+19,TXCTL,input,left
+18,TXD0,input,left
+17,TXD1,input,left
+16,TXD2,input,left
+15,TXD3,input,left
+27,RXC/PHYAD1,output,left
+26,RXCTL/PHYAD2,output,left
+25,RXD0/RXDLY,output,left
+24,RXD1/TXDLY,output,left
+23,RXD2/PLLOFF,output,left
+22,RXD3/PHYAD0,output,left
+13,MDC,input,left
+14,MDIO,bidirectional,left
+31,INTB/PMEB,open_collector,left
+12,~{PHYRSTB},input,left
+35,CLKOUT,output,left
+1,MDIP0,bidirectional,right
+2,MDIN0,bidirectional,right
+4,MDIP1,bidirectional,right
+5,MDIN1,bidirectional,right
+6,MDIP2,bidirectional,right
+7,MDIN2,bidirectional,right
+9,MDIP3,bidirectional,right
+10,MDIN3,bidirectional,right
+32,LED0/CFG_EXT,bidirectional,right
+33,LED1/CFG_LDO0,bidirectional,right
+34,LED2/CFG_LDO1,bidirectional,right
+36,XTAL_IN,input,right
+37,XTAL_OUT,output,right
+39,RSET,passive,right
+30,REG_OUT,power_out,right
+29,DVDD33,power_in,top
+28,DVDD_RG,power_in,top
+11,AVDD33,power_in,top
+40,AVDD33,power_in,top
+21,DVDD10,power_in,top
+3,AVDD10,power_in,top
+8,AVDD10,power_in,top
+38,AVDD10,power_in,top
+41,GND,power_in,bottom
diff --git a/kicad/lib/tools/sm410561n.csv b/kicad/lib/tools/sm410561n.csv
new file mode 100644
index 0000000..80aa2e8
--- /dev/null
+++ b/kicad/lib/tools/sm410561n.csv
@@ -0,0 +1,18 @@
+SM410561N
+Footprint:,eboard:7SegmentLED_0.56in_1Digit_SM410561N
+Datasheet:,https://www.lcsc.com/product-detail/C141368.html
+Description:,"0.56 inch single digit 7-segment LED display, common anode, red, through hole"
+Source*:,"ARKLED SM410561N specification (2011-12-08), page 4/4: segment pinout and dimensions"
+Keywords:,7 segment display LED common anode
+Filters:,7SegmentLED*0.56in*
+pin,name,type,side
+7,A,passive,left
+6,B,passive,left
+4,C,passive,left
+2,D,passive,left
+1,E,passive,left
+9,F,passive,left
+10,G,passive,left
+5,DP,passive,left
+3,CA,passive,top
+8,CA,passive,top