-#!/usr/bin/python
+#!/usr/bin/python3
# Copyright 2011 by Bdale Garbee <bdale@gag.com>. GPLv2
#
# Program to emit PCB footprint for QFN32 package used by FTDI FT232RQ
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 2'
-print '# use-license: unlimited'
+print('# author: Bdale Garbee')
+print('# email: bdale@gag.com')
+print('# dist-license: GPL 3')
+print('# use-license: unlimited')
-print 'Element[0x0 "QFN32" "" "" 0 0 0 0 0 100 0x0]'
-print "("
+print('Element[0x0 "QFN32" "" "" 0 0 0 0 0 100 0x0]')
+print("(")
# pad under the chip, must be grounded
-print ' Pad[',\
+print(' Pad[',\
mm2mils100(0), \
mm2mils100(0), \
mm2mils100(0), \
mm2mils100(GndSquare), \
0, \
0, \
- '"pin33" "33" "square,nopaste"]'
+ '"pin33" "33" "square,nopaste"]')
# vias in the ground pad under the chip
for viarow in range (-1,2):
for viacol in range (-1,2):
- print ' Pin[',\
+ print(' Pin[',\
mm2mils100(2 * viacol * CoreSquare / 5), \
mm2mils100(2 * viarow * CoreSquare / 5), \
2900, \
2500, \
0, \
1500, \
- '"pin33" "33" 0x0002]'
+ '"pin33" "33" 0x0002]')
# break pad under chip into a grid to control the resist and paste masks
for viarow in range (-2, 3):
for viacol in range (-2, 3):
if (viarow in (-2, 0, 2)) and (viacol in (-2, 0, 2)):
# copper sub-square with resist over vias
- print ' Pad[',\
+ print(' Pad[',\
mm2mils100(viacol * CoreSquare / 5), \
mm2mils100(viarow * CoreSquare / 5), \
mm2mils100(viacol * CoreSquare / 5), \
mm2mils100((CoreSquare)/5), \
0, \
0, \
- '"pin33" "33" "square,nopaste"]'
+ '"pin33" "33" "square,nopaste"]')
else:
# copper sub-square without resist
- print ' Pad[',\
+ print(' Pad[',\
mm2mils100(viacol * CoreSquare / 5), \
mm2mils100(viarow * CoreSquare / 5), \
mm2mils100(viacol * CoreSquare / 5), \
mm2mils100((CoreSquare)/5), \
0, \
mm2mils100((CoreSquare)/5), \
- '"pin33" "33" "square,nopaste"]'
+ '"pin33" "33" "square,nopaste"]')
# copper spot to control paste mask generation
- print ' Pad[',\
+ print(' Pad[',\
mm2mils100(viacol * CoreSquare / 5), \
mm2mils100(viarow * CoreSquare / 5), \
mm2mils100(viacol * CoreSquare / 5), \
1500, \
0, \
mm2mils100((CoreSquare)/5), \
- '"pin33" "33" "square"]'
+ '"pin33" "33" "square"]')
# pins
for pin in range (1,9):
- print ' Pad[',\
+ print(' Pad[',\
mm2mils100((-4.5 + pin) * PinSpacing), \
mm2mils100(-Overall/2 + PinWidth/2), \
mm2mils100((-4.5 + pin) * PinSpacing), \
mm2mils100(PinWidth), \
mm2mils100(PinSpacing - PinWidth), \
mm2mils100(PinResist), \
- '"pin%i"' % (25-pin), '"%i"' % (25-pin), '"square"]'
+ '"pin%i"' % (25-pin), '"%i"' % (25-pin), '"square"]')
- print ' Pad[',\
+ print(' Pad[',\
mm2mils100((-4.5 + pin) * PinSpacing), \
mm2mils100(+Overall/2 - PinHeight + PinWidth/2), \
mm2mils100((-4.5 + pin) * PinSpacing), \
mm2mils100(PinWidth), \
mm2mils100(PinSpacing - PinWidth), \
mm2mils100(PinResist), \
- '"pin%i"' % pin, '"%i"' % pin, '"square"]'
+ '"pin%i"' % pin, '"%i"' % pin, '"square"]')
- print ' Pad[',\
+ print(' Pad[',\
mm2mils100(Overall/2 - PinHeight + PinWidth/2), \
mm2mils100((-4.5 + pin) * PinSpacing), \
mm2mils100(Overall/2 - PinWidth/2), \
mm2mils100(PinWidth), \
mm2mils100(PinSpacing - PinWidth), \
mm2mils100(PinResist), \
- '"pin%i"' % (17-pin), '"%i"' % (17-pin), '"square"]'
+ '"pin%i"' % (17-pin), '"%i"' % (17-pin), '"square"]')
- print ' Pad[',\
+ print(' Pad[',\
mm2mils100(-Overall/2 + PinWidth/2), \
mm2mils100((-4.5 + pin) * PinSpacing), \
mm2mils100(-Overall/2 + PinHeight - PinWidth/2), \
mm2mils100(PinWidth), \
mm2mils100(PinSpacing - PinWidth), \
mm2mils100(PinResist), \
- '"pin%i"' % (24+pin), '"%i"' % (24+pin), '"square"]'
+ '"pin%i"' % (24+pin), '"%i"' % (24+pin), '"square"]')
-print ' ElementArc[',\
+print(' ElementArc[',\
mm2mils100(-2.6), \
mm2mils100(2.6), \
- '500 500 0 360 1000 ]'
-print ")"
+ '500 500 0 360 1000 ]')
+print(")")