2 # Copyright 2011 by Bdale Garbee <bdale@gag.com>. GPLv2
4 # Program to emit PCB footprint for Bosch BMA250 3-axis accelerometer
7 # dimensions in mm from BST-BMA250-DS002-02.pdf
11 RowSpacing = 1.90 - (2 * PinHeight)
17 # we're going to use the 1/100 of a mil fundamental unit form
19 return int( mm / 25.4 * 1000.0 * 100.0 + 0.5 )
21 print '# author: Bdale Garbee'
22 print '# email: bdale@gag.com'
23 print '# dist-license: GPL 2'
24 print '# use-license: unlimited'
26 print 'Element[0x0 "BMA250" "" "" 0 0 -10161 -12011 0 100 0x0]'
28 for pin in range (0,4):
30 mm2mils100(-(RowSpacing/2 + PinWidth/2)), \
31 mm2mils100((pin-1.5) * PinSpacing), \
32 mm2mils100(-(RowSpacing/2 + PinHeight - PinWidth/2)), \
33 mm2mils100((pin-1.5) * PinSpacing), \
34 mm2mils100(PinWidth), \
35 mm2mils100(PinSpacing - PinWidth), \
36 mm2mils100(PinWidth)+600, \
37 '"pin%i"' % (pin+1), '"%i"' % (pin+1), '0x0100]'
40 mm2mils100(RowSpacing/2 + PinWidth/2), \
41 mm2mils100((pin-1.5) * PinSpacing), \
42 mm2mils100(RowSpacing/2 + PinHeight - PinWidth/2), \
43 mm2mils100((pin-1.5) * PinSpacing), \
44 mm2mils100(PinWidth), \
45 mm2mils100(PinSpacing - PinWidth), \
46 mm2mils100(PinWidth)+600, \
47 '"pin%i"' % (10 - pin), '"%i"' % (10 - pin), '0x0100]'
49 for pin in range (0,2):
51 mm2mils100((pin-0.5) * PinSpacing), \
52 mm2mils100(RowSpacing/2 + PinWidth/2), \
53 mm2mils100((pin-0.5) * PinSpacing), \
54 mm2mils100(RowSpacing/2 + PinHeight - PinWidth/2), \
55 mm2mils100(PinWidth), \
56 mm2mils100(PinSpacing - PinWidth), \
57 mm2mils100(PinWidth)+600, \
58 '"pin%i"' % (pin + 5), '"%i"' % (pin + 5), '0x0100]'
61 mm2mils100((pin-0.5) * PinSpacing), \
62 mm2mils100(-RowSpacing/2 - PinWidth/2), \
63 mm2mils100((pin-0.5) * PinSpacing), \
64 mm2mils100(- RowSpacing/2 - PinHeight + PinWidth/2), \
65 mm2mils100(PinWidth), \
66 mm2mils100(PinSpacing - PinWidth), \
67 mm2mils100(PinWidth)+600, \
68 '"pin%i"' % (12-pin), '"%i"' % (12-pin), '0x0100]'
70 print ' ElementArc[',\
71 mm2mils100(-0.7 * BodyWidth), \
72 mm2mils100(-1.5 * PinSpacing), \
73 '500 500 0 360 1000 ]'