mirror of
https://github.com/whowechina/popn_pico.git
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271 lines
8.0 KiB
Python
271 lines
8.0 KiB
Python
"""
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build_mod_tfml_sfml.py
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Copyright 2016 Adam Greig
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Licensed under the MIT licence, see LICENSE file for details.
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Generate footprints for Samtec TFML and SFML connectors.
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"""
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from __future__ import print_function, division
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# Settings ====================================================================
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# Courtyard clearance
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# Use 0.25 for IPC nominal and 0.10 for IPC least
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ctyd_gap = 0.25
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# Courtyard grid
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ctyd_grid = 0.05
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# Courtyard line width
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ctyd_width = 0.01
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# Silk line width
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silk_width = 0.15
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# Fab layer line width
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fab_width = 0.01
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# Ref/Val font size (width x height)
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font_size = (1.0, 1.0)
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# Ref/Val font thickness
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font_thickness = 0.15
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# Ref/Val font spacing from centre to top/bottom edge
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font_halfheight = 0.7
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# End Settings ================================================================
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import os
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import sys
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import time
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import math
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import argparse
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from sexp import parse as sexp_parse, generate as sexp_generate
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from kicad_mod import fp_line, fp_text, pad, draw_square
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def tfml_pads(pins):
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pads = []
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x = -((pins - 1) / 2.0) * 1.27
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for pin in range(pins):
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pads.append(pad(pin*2 + 1, "smd", "rect", (x, 1.715), [0.74, 2.92],
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["F.Cu", "F.Mask", "F.Paste"]))
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pads.append(pad(pin*2 + 2, "smd", "rect", (x, -1.715), [0.74, 2.92],
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["F.Cu", "F.Mask", "F.Paste"]))
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x += 1.27
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return pads
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def sfml_pads(pins):
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pads = []
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x = -((pins - 1) / 2.0) * 1.27
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for pin in range(pins):
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pads.append(pad(pin*2 + 1, "smd", "rect", (x, -1.365), [0.74, 2.22],
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["F.Cu", "F.Mask", "F.Paste"]))
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pads.append(pad(pin*2 + 2, "smd", "rect", (x, 1.365), [0.74, 2.22],
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["F.Cu", "F.Mask", "F.Paste"]))
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x += 1.27
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return pads
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def locking_clip(pins):
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x = (pins * 1.27 + 1.91) / 2.0
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size = [1.2, 1.2]
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l = ["*.Mask"]
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pads = []
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pads.append(pad("", "np_thru_hole", "circle", (+x, 0), size, l, drill=1.2))
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pads.append(pad("", "np_thru_hole", "circle", (-x, 0), size, l, drill=1.2))
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return pads
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def tfml_fab(pins):
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_, _, _, _, sq = draw_square(
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pins * 1.27 + 3.18, 5.72, (0, 0), "F.Fab", fab_width)
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return sq
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def sfml_fab(pins):
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out = []
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l = "F.Fab"
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w = fab_width
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a_x = (3.94 - 0.38) / 2.0
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a_y = (3.05 - 1.52) / 2.0
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nw, ne, se, sw, _ = draw_square(
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pins * 1.27 + 0.38, 3.05, (0, 0), l, w)
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out.append(fp_line(nw, ne, l, w))
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out.append(fp_line(ne, (ne[0], ne[1]+a_y), l, w))
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out.append(fp_line((ne[0], ne[1]+a_y), (ne[0]+a_x, ne[1]+a_y), l, w))
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out.append(fp_line((ne[0]+a_x, ne[1]+a_y), (se[0]+a_x, se[1]-a_y), l, w))
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out.append(fp_line((se[0]+a_x, se[1]-a_y), (se[0], se[1]-a_y), l, w))
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out.append(fp_line((se[0], se[1]-a_y), se, l, w))
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out.append(fp_line(se, sw, l, w))
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out.append(fp_line(sw, (sw[0], sw[1]-a_y), l, w))
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out.append(fp_line((sw[0], sw[1]-a_y), (sw[0]-a_x, sw[1]-a_y), l, w))
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out.append(fp_line((sw[0]-a_x, sw[1]-a_y), (nw[0]-a_x, nw[1]+a_y), l, w))
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out.append(fp_line((nw[0]-a_x, nw[1]+a_y), (nw[0], nw[1]+a_y), l, w))
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out.append(fp_line((nw[0], nw[1]+a_y), nw, l, w))
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return out
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def tfml_silk(pins):
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out = []
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l = "F.SilkS"
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w = silk_width
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nw, ne, se, sw, _ = draw_square(
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pins * 1.27 + 3.18 - w, 5.72 - w, (0, 0), l, w)
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out.append(fp_line((nw[0]+1.5, nw[1]), nw, l, w))
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out.append(fp_line(nw, sw, l, w))
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out.append(fp_line(sw, (sw[0]+1.5, sw[1]), l, w))
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out.append(fp_line((se[0]-1.5, se[1]), (se[0], se[1]-1.5), l, w))
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out.append(fp_line((se[0], se[1]-1.5), (ne[0], ne[1]+1.5), l, w))
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out.append(fp_line((ne[0], ne[1]+1.5), (ne[0]-1.5, ne[1]), l, w))
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return out
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def sfml_silk(pins):
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out = []
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l = "F.SilkS"
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w = silk_width
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a_x = (3.94 - 0.38) / 2.0
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a_y = (3.05 - 1.52) / 2.0
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nw, ne, se, sw, _ = draw_square(
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pins * 1.27 + 0.38 - w, 3.05 - w, (0, 0), l, w)
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out.append(fp_line(ne, (ne[0], ne[1]+a_y), l, w))
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out.append(fp_line((ne[0], ne[1]+a_y), (ne[0]+a_x, ne[1]+a_y), l, w))
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out.append(fp_line((ne[0]+a_x, ne[1]+a_y), (se[0]+a_x, se[1]-a_y), l, w))
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out.append(fp_line((se[0]+a_x, se[1]-a_y), (se[0], se[1]-a_y), l, w))
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out.append(fp_line((se[0], se[1]-a_y), se, l, w))
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out.append(fp_line(se, (se[0]-0.3, se[1]), l, w))
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out.append(fp_line((sw[0]+0.3, sw[1]), sw, l, w))
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out.append(fp_line(sw, (sw[0], sw[1]-a_y), l, w))
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out.append(fp_line((sw[0], sw[1]-a_y), (sw[0]-a_x, sw[1]-a_y), l, w))
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out.append(fp_line((sw[0]-a_x, sw[1]-a_y), (nw[0]-a_x, nw[1]+a_y), l, w))
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out.append(fp_line((nw[0]-a_x, nw[1]+a_y), (nw[0], nw[1]+a_y), l, w))
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out.append(fp_line((nw[0], nw[1]+a_y), nw, l, w))
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return out
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def ctyd(pins):
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w = pins * 1.27 + 3.94 + 2 * ctyd_gap
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h = 6.35 + 2 * ctyd_gap
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grid = 2 * ctyd_grid
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w = grid * int(math.ceil(w / grid))
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h = grid * int(math.ceil(h / grid))
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_, _, _, _, sq = draw_square(w, h, (0, 0), "F.CrtYd", ctyd_width)
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return sq
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def refs(name):
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out = []
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ctyd_h = 6.35 + 2 * ctyd_gap
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y = ctyd_h / 2.0 + font_halfheight
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out.append(fp_text("reference", "REF**", (0, -y),
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"F.Fab", font_size, font_thickness))
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out.append(fp_text("value", name, (0, y),
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"F.Fab", font_size, font_thickness))
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return out
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def tfml_base(name, pins):
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tedit = format(int(time.time()), 'X')
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sexp = ["module", name, ("layer", "F.Cu"), ("tedit", tedit)]
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sexp += tfml_pads(pins)
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sexp += tfml_fab(pins)
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sexp += ctyd(pins)
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sexp += tfml_silk(pins)
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sexp += refs(name)
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return sexp
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def tfml(pins):
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name = "TFML-1{:02d}-02-L-D".format(pins)
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sexp = tfml_base(name, pins)
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return name, sexp_generate(sexp)
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def tfml_lc(pins):
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name = "TFML-1{:02d}-02-L-D-LC".format(pins)
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sexp = tfml_base(name, pins)
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sexp += locking_clip(pins)
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return name, sexp_generate(sexp)
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def sfml_base(name, pins):
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tedit = format(int(time.time()), 'X')
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sexp = ["module", name, ("layer", "F.Cu"), ("tedit", tedit)]
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sexp += sfml_pads(pins)
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sexp += sfml_fab(pins)
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sexp += ctyd(pins)
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sexp += sfml_silk(pins)
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sexp += refs(name)
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return sexp
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def sfml(pins):
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name = "SFML-1{:02d}-02-L-D".format(pins)
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sexp = sfml_base(name, pins)
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return name, sexp_generate(sexp)
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def sfml_lc(pins):
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name = "SFML-1{:02d}-02-L-D-LC".format(pins)
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sexp = sfml_base(name, pins)
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sexp += locking_clip(pins)
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return name, sexp_generate(sexp)
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def main(prettypath, verify=False, verbose=False):
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for pins in (5, 7, 10, 15):
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for generator in (tfml, tfml_lc, sfml, sfml_lc):
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# Generate footprint
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name, fp = generator(pins)
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path = os.path.join(prettypath, name + ".kicad_mod")
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if verify and verbose:
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print("Verifying", path)
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# Check if the file already exists and isn't changed
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if os.path.isfile(path):
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with open(path) as f:
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old = f.read()
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old = [n for n in sexp_parse(old) if n[0] != "tedit"]
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new = [n for n in sexp_parse(fp) if n[0] != "tedit"]
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if new == old:
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continue
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# If it needs changing, either verification failed or we rewrite
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if verify:
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return False
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else:
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with open(path, "w") as f:
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f.write(fp)
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if verify:
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return True
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if __name__ == "__main__":
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parser = argparse.ArgumentParser()
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parser.add_argument("prettypath", type=str, help=
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"Path to footprints to process")
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parser.add_argument("--verify", action="store_true", help=
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"Verify libraries are up to date")
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parser.add_argument("--verbose", action="store_true", help=
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"Print out every library verified")
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args = vars(parser.parse_args())
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result = main(**args)
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if args['verify']:
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if result:
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print("OK: all footprints up-to-date.")
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sys.exit(0)
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else:
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print("Error: footprints not up-to-date.", file=sys.stderr)
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sys.exit(1)
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