def chip(size, polarized=False, profile=ipc.LandPatternSize.Nominal):
t, n, s = size
desc = '{0} ({1}) {2}chip device'.format(n, t, 'polarized ' if polarized else '')
f = fp.Footprint(name=n, description=desc)
c = lib.chip(profile, s, polarized)
f.from_ipc(c)
return f
def testFootprint(self):
f = fp.Footprint(name='test')
self.assertSExpr(
str(f), '''(module test
(layer F.Cu)
(tedit 0)
(at 0 0)
(descr "")
(fp_text reference "REF" (at 0 -1) (layer F.SilkS) (effects (font (size 1 1) (thickness 0.15))))
(fp_text value "VAL" (at 0 1) (layer F.Fab) (effects (font (size 1 1) (thickness 0.15))))
)''')
f.name = 'foo'
f.description = 'A test footprint'
self.assertSExpr(
str(f), '''(module foo
(layer F.Cu)
(tedit 0)
(at 0 0)
(descr "A test footprint")
(fp_text reference "REF" (at 0 -1) (layer F.SilkS) (effects (font (size 1 1) (thickness 0.15))))
(fp_text value "VAL" (at 0 1) (layer F.Fab) (effects (font (size 1 1) (thickness 0.15))))
)''')
f.refdes.layer = fp.Layer.BottomSilkscreen
f.value.hidden = True
self.assertSExpr(
str(f), '''(module foo
(layer F.Cu)
(tedit 0)
(at 0 0)
(descr "A test footprint")
(fp_text reference "REF" (at 0 -1) (layer B.SilkS) (effects (font (size 1 1) (thickness 0.15))))
(fp_text value "VAL" (at 0 1) (layer F.Fab) hide (effects (font (size 1 1) (thickness 0.15))))
)''')
f.features.append(fp.Text(text='test feature'))
self.assertSExpr(
str(f), '''(module foo
(layer F.Cu)
(tedit 0)
(at 0 0)
(descr "A test footprint")
(fp_text reference "REF" (at 0 -1) (layer B.SilkS) (effects (font (size 1 1) (thickness 0.15))))
(fp_text value "VAL" (at 0 1) (layer F.Fab) hide (effects (font (size 1 1) (thickness 0.15))))
(fp_text user "test feature" (at 0 0) (layer F.SilkS) (effects (font (size 1 1) (thickness 0.15))))
)''')
def test_point(size):
f = fp.Footprint(name='Test Point {0}mm'.format(size))
f.features = [fp.TestPad(name=1, size=(size, size))]
return f
def QFN(A, T, W, pitch, num_pins, profile=ipc.LandPatternSize.Nominal):
f = fp.Footprint(name='{0}-QFN'.format(num_pins),
description='{0}-pin Quad Flat No-Leads'.format(num_pins))
f.from_ipc(lib.QFN(profile, A, T, W, pitch, num_pins))
return f
def SC70(num_pins, profile=ipc.LandPatternSize.Nominal):
f = fp.Footprint(name='SC70-{0}'.format(num_pins))
f.from_ipc(lib.SC70(profile, num_pins))
return f
def SOP(A, B, L, T, W, num_pins, pitch, profile=ipc.LandPatternSize.Nominal):
f = fp.Footprint(name='{0}-SOP'.format(num_pins),
description='{0}-pin SOP'.format(num_pins))
f.from_ipc(lib.SOP(profile, A, B, L, T, W, num_pins, pitch))
return f