add footprint for Bosch BMI088

[hw/altusmetrum] / packages / lga16.py

diff --git a/packages/lga16.py b/packages/lga16.py
new file mode 100755 (executable)
index 0000000..09091d2
--- /dev/null
+++ b/packages/lga16.py
@@ -0,0 +1,107 @@
+#!/usr/bin/python2
+# Copyright 2022 by Bdale Garbee <bdale@gag.com>.  GPLv3
+#
+# Program to emit PCB footprint for LGA 16 such as Bosch BMI088
+#
+
+# dimensions in mm from BMI088.pdf
+
+PinWidth = 0.25
+PinHeight = 0.475 + 0.2
+PinSpacing = 0.50      
+RowCenters = 2.33      # center to center rows of pad
+RowSpacing = RowCenters - PinHeight
+EndCenters = 3.83      # center to center of pads on ends
+EndSpacing = EndCenters - PinHeight
+MaskWidth = PinWidth + 0.1
+BodyWidth = 3.0
+BodyHeight = 4.50
+
+import sys
+
+# we're going to use the 1/100 of a mil fundamental unit form
+def mm2mils100( mm ):
+       return int( mm / 25.4 * 1000.0 * 100.0 + 0.5 )
+
+print '# author: Bdale Garbee'
+print '# email: bdale@gag.com'
+print '# dist-license: GPL 3'
+print '# use-license: unlimited'
+
+print 'Element[0x0 "lga16" "" "" 0 0 -10161 -12011 0 100 0x0]'
+print "("
+for pin in range (0,7):
+    print '   Pad[',\
+       mm2mils100((pin-3) * PinSpacing), \
+       mm2mils100(-(RowSpacing/2 + PinWidth/2)), \
+       mm2mils100((pin-3) * PinSpacing), \
+       mm2mils100(-(RowSpacing/2 + PinHeight - PinWidth/2)), \
+       mm2mils100(PinWidth), \
+       mm2mils100(PinSpacing - PinWidth), \
+       mm2mils100(MaskWidth), \
+       '"pin%i"' % (15 - pin), '"%i"' % (15 - pin), '0x0100]'
+
+    print '   Pad[',\
+       mm2mils100((pin-3) * PinSpacing), \
+       mm2mils100(RowSpacing/2 + PinWidth/2), \
+       mm2mils100((pin-3) * PinSpacing), \
+       mm2mils100(RowSpacing/2 + PinHeight - PinWidth/2), \
+       mm2mils100(PinWidth), \
+       mm2mils100(PinSpacing - PinWidth), \
+       mm2mils100(MaskWidth), \
+       '"pin%i"' % (1 + pin), '"%i"' % (1 + pin), '0x0100]'
+
+    print '   Pad[',\
+       mm2mils100(EndSpacing/2 + PinWidth/2), \
+       0, \
+       mm2mils100(EndSpacing/2 + PinHeight - PinWidth/2), \
+       0, \
+       mm2mils100(PinWidth), \
+       mm2mils100(PinSpacing - PinWidth), \
+       mm2mils100(MaskWidth), \
+       '"pin%i"' % 8, '"%i"' % 8, '0x0100]'
+
+    print '   Pad[',\
+       -mm2mils100(EndSpacing/2 + PinWidth/2), \
+       0, \
+       -mm2mils100(EndSpacing/2 + PinHeight - PinWidth/2), \
+       0, \
+       mm2mils100(PinWidth), \
+       mm2mils100(PinSpacing - PinWidth), \
+       mm2mils100(MaskWidth), \
+       '"pin%i"' % 16, '"%i"' % 16, '0x0100]'
+
+print '   ElementLine[',\
+       mm2mils100(-BodyHeight/2), \
+       mm2mils100(-BodyWidth/2), \
+       mm2mils100(-BodyHeight/2), \
+       mm2mils100( BodyWidth/2), \
+       '1000 ]'
+
+print '   ElementLine[',\
+       mm2mils100(-BodyHeight/2), \
+       mm2mils100( BodyWidth/2), \
+       mm2mils100( BodyHeight/2), \
+       mm2mils100( BodyWidth/2), \
+       '1000 ]'
+
+print '   ElementLine[',\
+       mm2mils100( BodyHeight/2), \
+       mm2mils100( BodyWidth/2), \
+       mm2mils100( BodyHeight/2), \
+       mm2mils100(-BodyWidth/2), \
+       '1000 ]'
+
+print '   ElementLine[',\
+       mm2mils100( BodyHeight/2), \
+       mm2mils100(-BodyWidth/2), \
+       mm2mils100(-BodyHeight/2), \
+       mm2mils100(-BodyWidth/2), \
+       '1000 ]'
+
+print '   ElementArc[',\
+        mm2mils100(-3.5 * PinSpacing), \
+        mm2mils100(1.2 * RowSpacing), \
+       '500 500 0 360 1000 ]'
+
+print ")"