-#!/usr/bin/python2
+#!/usr/bin/python3
# Copyright 2011 by Bdale Garbee <bdale@gag.com>. GPLv2
# Copyright 2019 by Keith Packard <keithp@keithp.com>. GPLv2+
+# Copyright 2024 by Bdale Garbee <bdale@gag.com>. GPLv3
#
# Program to emit PCB footprint for WQFN-16 package used by the DRV8800
#
def mm2mils100( mm ):
return int( mm / 25.4 * 1000.0 * 100.0 + 0.5 )
-print '# author: Keith Packard'
-print '# email: keithp@keithp.com'
-print '# dist-license: GPL 2'
-print '# use-license: unlimited'
+print('# author: Keith Packard')
+print('# email: keithp@keithp.com')
+print('# dist-license: GPL 3')
+print('# use-license: unlimited')
-print 'Element[0x0 "qfn-16" "" "" 0 0 0 0 0 100 0x0]'
-print "("
+print('Element[0x0 "qfn-16" "" "" 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), \
mm2mils100(PinClearance), \
mm2mils100(PinResist), \
- '"pin17" "17" "square,nopaste"]'
+ '"pin17" "17" "square,nopaste"]')
# vias in the ground pad under the chip
for viarow in range (-1,1):
for viacol in range (-1,1):
- print ' Pin[',\
+ print(' Pin[',\
mm2mils100(1.8 * viacol * CoreSquare / 3 + .9 * CoreSquare/3), \
mm2mils100(1.8 * viarow * CoreSquare / 3 + .9 * CoreSquare/3), \
2600, \
2500, \
0, \
1300, \
- '"pin17" "17" 0x0002]'
+ '"pin17" "17" 0x0002]')
# break pad under chip into a grid to control the resist and paste masks
for viacol in range (-1, 2):
if (viarow in (-1, 1)) and (viacol in (-1, 1)):
# copper sub-square with resist over vias
- print ' Pad[',\
+ print(' Pad[',\
mm2mils100(viacol * CoreSquare / blocks), \
mm2mils100(viarow * CoreSquare / blocks), \
mm2mils100(viacol * CoreSquare / blocks), \
mm2mils100((CoreSquare)/blocks), \
0, \
0, \
- '"pin17" "17" "square,nopaste"]'
+ '"pin17" "17" "square,nopaste"]')
else:
# copper sub-square without resist
- print ' Pad[',\
+ print(' Pad[',\
mm2mils100(viacol * CoreSquare / blocks), \
mm2mils100(viarow * CoreSquare / blocks), \
mm2mils100(viacol * CoreSquare / blocks), \
mm2mils100((CoreSquare)/blocks), \
0, \
mm2mils100((CoreSquare)/blocks), \
- '"pin17" "17" "square,nopaste"]'
+ '"pin17" "17" "square,nopaste"]')
# copper spot to control paste mask generation
- print ' Pad[',\
+ print(' Pad[',\
mm2mils100(viacol * CoreSquare / blocks), \
mm2mils100(viarow * CoreSquare / blocks), \
mm2mils100(viacol * CoreSquare / blocks), \
1500, \
0, \
mm2mils100((CoreSquare)/blocks), \
- '"pin17" "17" "square"]'
+ '"pin17" "17" "square"]')
# pins
for pin in range (1,5):
- print ' Pad[',\
+ print(' Pad[',\
mm2mils100((-2.5 + pin) * PinSpacing), \
mm2mils100(-Overall/2 + PinWidth/2), \
mm2mils100((-2.5 + pin) * PinSpacing), \
mm2mils100(PinWidth), \
mm2mils100(PinClearance), \
mm2mils100(PinResist), \
- '"pin%i"' % (13-pin), '"%i"' % (13-pin), '0x0000]'
+ '"pin%i"' % (13-pin), '"%i"' % (13-pin), '0x0000]')
- print ' Pad[',\
+ print(' Pad[',\
mm2mils100((-2.5 + pin) * PinSpacing), \
mm2mils100(+Overall/2 - PinHeight + PinWidth/2), \
mm2mils100((-2.5 + pin) * PinSpacing), \
mm2mils100(PinWidth), \
mm2mils100(PinClearance), \
mm2mils100(PinResist), \
- '"pin%i"' % pin, '"%i"' % pin, '0x0000]'
+ '"pin%i"' % pin, '"%i"' % pin, '0x0000]')
- print ' Pad[',\
+ print(' Pad[',\
mm2mils100(Overall/2 - PinHeight + PinWidth/2), \
mm2mils100((-2.5 + pin) * PinSpacing), \
mm2mils100(Overall/2 - PinWidth/2), \
mm2mils100(PinWidth), \
mm2mils100(PinClearance), \
mm2mils100(PinResist), \
- '"pin%i"' % (9-pin), '"%i"' % (9-pin), '0x0000]'
+ '"pin%i"' % (9-pin), '"%i"' % (9-pin), '0x0000]')
- print ' Pad[',\
+ print(' Pad[',\
mm2mils100(-Overall/2 + PinWidth/2), \
mm2mils100((-2.5 + pin) * PinSpacing), \
mm2mils100(-Overall/2 + PinHeight - PinWidth/2), \
mm2mils100(PinWidth), \
mm2mils100(PinClearance), \
mm2mils100(PinResist), \
- '"pin%i"' % (12+pin), '"%i"' % (12+pin), '0x0000]'
+ '"pin%i"' % (12+pin), '"%i"' % (12+pin), '0x0000]')
-print ' ElementArc[',\
+print(' ElementArc[',\
mm2mils100(-2.0), \
mm2mils100(2.0), \
- '500 500 0 360 1000 ]'
-print ")"
+ '500 500 0 360 1000 ]')
+print(")")