Fix USB A connector pads to expose copper

[hw/altusmetrum] / packages / usbAmale.py

diff --git a/packages/usbAmale.py b/packages/usbAmale.py
index cf4a6ad7101612bd88a4e105c7007d292ba37625..688a200f3f29d6da1c9c9f3d9de327b2f4b94aea 100755 (executable)
--- a/packages/usbAmale.py
+++ b/packages/usbAmale.py
@@ -1,22 +1,29 @@
 #!/usr/bin/python
 # Copyright 2014 by Bdale Garbee <bdale@gag.com>.  GPLv2
 #
-# Program to emit PCB footprint for Keystone model 931 USB A male connector
+# Program to emit PCB footprint for Keystone model 931 USB A male connector,
+# should also work fine for 4ucon 10017 / 10019, and Acon C-UAR70-00-00
 #
 
-# dimensions in mm from Keystone datasheet
+# dimensions in mm homogenized from Keystone, 4ucon, and Acon  datasheets
+
+                               # note that in practice we may not want
+                               # holes for the tabs in a USB key form factor,
+                               # in which case just delete the features in
+                               # the PCB layout and make board width right
 TabDiam = 2.50
+TabMinor = 1.00
 TabSpacing = 11.70
 
 PinDiam = 1.10
-PinSpacing = 4.60
+PinSpacing = 4.50              # keystone wants 4.6 here .. really?
 
-PadHeight = 1.99
-PadWidth = 1.10
+PadHeight = 2.0                        # keystone says 1.99 but is 0.1 closer
+PadWidth = 1.20                        # keystone says 1.1 but wider will work
 Pad14 = 7.0
 Pad23 = 2.0
-PadRowOffset = 2.50
-EdgeOffset = 2.90
+PadRowOffset = 2.60
+EdgeOffset = 2.70              # keystone says 2.9, but shorter should be ok
 
 import sys
 
@@ -89,23 +96,25 @@ print '   Pin[',\
         mm2mils100(PinDiam), \
         '"mnt" "G" 0x0000]'
 
-print '   Pin[',\
-        mm2mils100(-TabSpacing/2), \
-        mm2mils100(0), \
-        mm2mils100(TabDiam+0.3556), \
+print '   Pad[',\
+        mm2mils100(-TabSpacing/2 + PadWidth/2 + TabMinor/2), \
+        mm2mils100(-TabDiam/2), \
+        mm2mils100(-TabSpacing/2 + PadWidth/2 + TabMinor/2), \
+        mm2mils100(TabDiam/2), \
+        mm2mils100(PadWidth), \
         mm2mils100(0.31), \
-        mm2mils100(TabDiam+0.66), \
-        mm2mils100(TabDiam), \
-        '"mnt" "G" 0x0000]'
+        mm2mils100(PadWidth + 0.15), \
+        '"mnt" "G" "onsolder,nopaste"]'
 
-print '   Pin[',\
-        mm2mils100(TabSpacing/2), \
-        mm2mils100(0), \
-        mm2mils100(TabDiam+0.3556), \
+print '   Pad[',\
+        mm2mils100(TabSpacing/2 - PadWidth/2 - TabMinor/2), \
+        mm2mils100(-TabDiam/2), \
+        mm2mils100(TabSpacing/2 - PadWidth/2 - TabMinor/2), \
+        mm2mils100(TabDiam/2), \
+        mm2mils100(PadWidth), \
         mm2mils100(0.31), \
-        mm2mils100(TabDiam+0.66), \
-        mm2mils100(TabDiam), \
-        '"mnt" "G" 0x0000]'
+        mm2mils100(PadWidth + 0.15), \
+        '"mnt" "G" "onsolder,nopaste"]'
 
 print '   ElementLine[',\
        mm2mils100(-TabSpacing/2), \
@@ -114,4 +123,18 @@ print '   ElementLine[',\
        mm2mils100(-EdgeOffset)+500, \
        '1000 ]'
 
+print '   ElementLine[',\
+       mm2mils100(-TabSpacing/2 + TabMinor/2), \
+       mm2mils100(-TabDiam/2), \
+       mm2mils100(-TabSpacing/2 + TabMinor/2), \
+       mm2mils100(TabDiam/2), \
+       '1000 ]'
+
+print '   ElementLine[',\
+       mm2mils100(TabSpacing/2 - TabMinor/2), \
+       mm2mils100(-TabDiam/2), \
+       mm2mils100(TabSpacing/2 - TabMinor/2), \
+       mm2mils100(TabDiam/2), \
+       '1000 ]'
+
 print ")"